United States
                       Securities and Exchange Commission
                             Washington, D.C. 20549
                                    FORM 10-Q
(Mark One)
[X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
         EXCHANGE ACT OF 1934
                  For the quarterly period ended September 30, 2002

[  ]     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
         EXCHANGE ACT OF 1934
                  For the transition period from ______ to _________.

                        Commission file number: 000-26727

                          BIOMARIN PHARMACEUTICAL INC.
          (Exact name of registrant issuer as specified in its charter)

           Delaware                                      68-0397820
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
incorporation or organization)

          371 Bel Marin Keys Blvd., Suite 210, Novato, California 94949
                    (address of principal executive offices)
                                   (Zip Code)
                                 (415) 884-6700
              (Registrant's telephone number, including area code)

   (Former name, former address and former fiscal year, if changed since last
   report)

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934 during the past 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days. Yes X No

                APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY
                   PROCEEDINGS DURING THE PRECEDING FIVE YEARS

     Indicate  by check mark  whether the  registrant  filed all  documents  and
reports  required  to be filed by  Sections  12,  13 or 15(d) of the  Securities
Exchange Act of 1934 subsequent to the  distribution of securities  under a plan
confirmed by a court. Yes ____ No_____

                      APPLICABLE ONLY TO CORPORATE ISSUERS

     Indicate the number of shares  outstanding of each of the issuer's  classes
of common stock, as of the latest  practicable  date:  53,671,951  shares common
stock, par value $0.001, outstanding as of November 4, 2002.





                          BIOMARIN PHARMACEUTICAL INC.

                                TABLE OF CONTENTS

                                                                            Page

PART I.  FINANCIAL INFORMATION

         Item 1.  Consolidated Financial Statements (Unaudited).

           Consolidated Balance Sheets.........................................2
           Consolidated Statements of Operations...............................3
           Consolidated Statements of Cash Flows...............................5
           Notes to Consolidated Financial Statements..........................6

         Item 2.  Management's Discussion and Analysis........................10

         Item 3.  Quantitative and Qualitative Disclosure
                  about Market Risk...........................................28

         Item 4.  Controls and Procedures.....................................28

PART II. OTHER INFORMATION

         Item 1.  Legal Proceedings...........................................29

         Item 2.  Changes in Securities and Uses of Proceeds..................29

         Item 3.  Defaults upon Senior Securities.............................29

         Item 4.  Submission of Matters to a Vote of Security Holders.........29

         Item 5.  Other Information...........................................29

         Item 6.  Exhibits and Reports on Form 8-K............................29

SIGNATURE.....................................................................31















Item 1.  Consolidated Financial Statements

                  BioMarin Pharmaceutical Inc. and Subsidiaries
                          (a development-stage company)

                           Consolidated Balance Sheets
                 (In thousands, except share and per share data)


                                                                            

                                                          December 31,               September 30,
                                                              2001                        2002
                                                       ------------------------   ------------------------
                                                                                      (unaudited)
Assets
Current assets:
   Cash and cash equivalents                           $      12,528              $      32,405
   Short-term investments                                    118,569                     54,063
   Due from BioMarin/Genzyme LLC                               3,096                      2,332
   Current assets of discontinued
    operations of Glyko, Inc.                                    668                          -
   Other current assets                                        1,922                      2,570
                                                       ------------------------   ------------------------
     Total current assets                                    136,783                     91,370

Property plant, and equipment, net                            32,560                     30,994
Investment in BioMarin/Genzyme LLC                             1,145                      3,750
Other non-current assets                                       1,323                      1,355
                                                       ------------------------   ------------------------
     Total assets                                      $     171,811              $     127,469
                                                       ========================   ========================

Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable                                    $       4,284              $         763
   Accrued liabilities                                         2,198                      5,332
   Current liabilities of discontinued
    operations of Glyko, Inc.                                    229                          5
   Other current liabilities                                   1,591                      2,247
                                                       ------------------------   ------------------------
     Total current liabilities                                 8,302                      8,347

   Long-term liabilities                                       3,961                      2,912
                                                       ------------------------   ------------------------
     Total liabilities                                        12,263                     11,259
                                                       ------------------------   ------------------------

Stockholders' equity:
   Common stock, $0.001 par value:  75,000,000
     shares authorized, 52,402,535 and 53,617,129
     shares issued and outstanding December 31,
     2001 and September 30, 2002, respectively                    52                         54
   Additional paid-in capital                                305,230                    318,410
   Warrants                                                    5,134                      5,219
   Deferred compensation                                        (699)                      (138)
   Notes receivable from stockholders                         (2,037)                    (1,057)
   Accumulated other comprehensive loss                          (13)                       (28)
   Deficit accumulated during the development stage         (148,119)                  (206,250)
                                                       ------------------------   ------------------------
     Total stockholders' equity                              159,548                    116,210
                                                       ------------------------   ------------------------
     Total liabilities and stockholders' equity        $     171,811              $     127,469
                                                       ========================   ========================


             The accompanying notes are an integral part of these statements.

                                       2




                  BioMarin Pharmaceutical Inc. and Subsidiaries
                          (a development-stage company)

                      Consolidated Statements of Operations
             For the Three Months Ended September 30, 2001 and 2002
                (In thousands, except per share data, unaudited)



                                                                            

                                                                Three Months Ended September 30,
                                                       --------------------------------------------------
                                                                 2001                      2002
                                                       -----------------------   ------------------------
Revenue:
      Revenue from BioMarin/Genzyme LLC                $         3,079           $         3,569
                                                       -----------------------   ------------------------

Operating expenses:
      Research and development                                  10,039                     14,675
      General and administrative                                 2,340                      3,940
                                                       -----------------------   ------------------------
         Total operating expenses                               12,379                     18,615
                                                       -----------------------   ------------------------

Loss from operations                                            (9,300)                   (15,046)

Interest income                                                    530                        629
Interest expense                                                    (8)                      (123)
Loss from BioMarin/Genzyme LLC                                  (1,864)                    (2,350)
                                                       -----------------------   ------------------------


Net loss from continuing operations                            (10,642)                   (16,890)
Loss from discontinued operations                                 (373)                      (219)
Loss on disposal of discontinued operations                          -                         (8)
                                                       -----------------------   ------------------------
      Net loss                                         $       (11,015)          $        (17,117)
                                                       =======================   ========================

Net loss per share, basic and diluted:
      Loss from continuing operations                  $         (0.25)          $          (0.32)
      Loss from discontinued operations                          (0.01)                         -
      Loss on disposal of discontinued operations                    -                          -
                                                       -----------------------   ------------------------
      Net loss                                         $         (0.26)          $          (0.32)
                                                       =======================   ========================


Weighted average common shares outstanding                      42,136                     53,446
                                                       =======================   ========================


            The accompanying notes are an integral part of these statements.



                                       3




                  BioMarin Pharmaceutical Inc. and Subsidiaries
                          (a development-stage company)

                Consolidated Statements of Operations (continued)
            For the Nine Months Ended September 30, 2001 and 2002 and
      for the Period from March 21, 1997 (Inception) to September 30, 2002
                (In thousands, except per share data, unaudited)


                                                                                            


                                                              Nine Months Ended September 30,          Period from March 21,
                                                       ------------------------------------------       1997 (Inception) to
                                                              2001                   2002              September 30, 2002
                                                       --------------------    ------------------    -----------------------

Revenue:
     Revenue from BioMarin/Genzyme LLC                 $       8,621           $     10,784          $        37,982
                                                       --------------------    ------------------    -----------------------

Operating expenses:
     Research and development                                 31,042                 41,229                  159,143
     General and administrative                                5,350                 10,928                   32,972
     In-process research and development                           -                 11,223                   22,870
     Facility closure                                              -                      -                    4,423
                                                       --------------------    ------------------     -----------------------
         Total operating expenses                             36,392                 63,380                  219,408
                                                       --------------------    ------------------     -----------------------


Loss from operations                                         (27,771)                (52,596)               (181,426)
Interest income                                                1,434                   2,033                   9,465
Interest expense                                                 (11)                   (375)                 (1,131)
Loss from BioMarin/Genzyme LLC                                (4,708)                 (7,109)                (19,074)
                                                       --------------------    ------------------     -----------------------


Net loss from continuing operations                          (31,056)                (58,047)               (192,166)
Income (loss) from discontinued operations                    (1,628)                     75                  (6,013)
Loss on disposal of discontinued operations                        -                    (159)                 (8,071)
                                                       --------------------    ------------------     -----------------------
      Net loss                                         $     (32,684)          $     (58,131)         $     (206,250)
                                                       ====================    ==================     =======================

Net loss per share, basic and diluted:
      Net loss from continuing operations              $       (0.79)          $       (1.10)         $        (6.24)
      Loss from discontinued operations                        (0.04)                      -                   (0.19)
      Loss on disposal of discontinued operations                 -                        -                   (0.26)
                                                       --------------------    ------------------     -----------------------
      Net loss                                         $       (0.83)          $       (1.10)         $        (6.69)

                                                       ====================    ==================     =======================

Weighted average common shares outstanding                    39,601                  53,011                  30,811
                                                       ====================    ==================     =======================



        The accompanying notes are an integral part of these statements.

                                       4




                  BioMarin Pharmaceutical Inc. and Subsidiaries
                          (a development-stage company)

                      Consolidated Statements of Cash Flows
            For the Nine Months Ended September 30, 2001 and 2002 and
      for the Period from March 21, 1997 (Inception) to September 30, 2002
                            (In thousands, unaudited)


 
                                                                                          

                                                            Nine Months Ended September 30,         Period from March 21,
                                                       ----------------------------------------      1997 (Inception) to
                                                              2001                  2002             September 30, 2002
                                                       ------------------    ------------------    ----------------------

Cash flows from operating activities:
    Net loss from continuing operations                $     (31,056)        $     (58,047)        $       (192,166)
    Adjustments to reconcile net loss from
       continuing operations to net cash
       used in operating activities:
       In-process research and development                         -                10,286                   21,933
       Facility closure                                            -                     -                    3,791
       Depreciation                                            3,827                 6,059                   20,966
       Amortization of deferred compensation                     627                   561                    4,322
       Loss from BioMarin/Genzyme LLC                         13,328                17,965                   56,129
       Transaction costs related to Glyko
       Biomedical Ltd.                                           286                 1,942                    2,329
       Other non-cash charges                                      -                   249                      249
    Changes in operating assets and liabilities:
       Due from BioMarin/Genzyme LLC                          (2,056)                  764                   (2,332)
       Other current assets                                     (298)                1,378                      112
       Notes receivable from officers                           (878)                 (300)                  (1,189)
       Deposits                                                  (75)                    -                     (434)
       Accounts payable                                         (780)               (3,749)                     634
       Accrued liabilities                                        (3)                3,135                    5,654
                                                       ------------------    ------------------    ----------------------
       Net cash used in continuing operations                (17,078)              (19,757)                 (80,002)
       Net cash provided by (used in) discontinued
       operations                                               (201)                  361                    1,110
                                                       ------------------    ------------------    ----------------------
      Net cash used in operating activities                  (17,279)              (19,396)                 (78,892)
                                                       ------------------    ------------------    ----------------------

Cash flows from investing activities:
    Purchase of property and equipment                       (10,901)               (4,386)                 (55,437)
    Purchase of Synapse Technologies, Inc.                         -                (1,028)                  (1,028)
    Investment in BioMarin/Genzyme LLC                       (14,010)              (20,570)                 (59,879)
    Purchase of IBEX therapeutic assets                            -                     -                   (3,032)
    Purchase of Glyko Biomedical Ltd.                           (286)               (1,258)                  (1,645)
    Sale (purchase) of short-term investments                (13,004)               64,548                  (54,021)
                                                       ------------------    ------------------    ----------------------
       Net cash provided by (used in) continuing
       operations                                            (38,201)               37,306                 (175,042)
       Net cash used in discontinued operations                    -                     -                   (1,663)
                                                       ------------------    ------------------    ----------------------
          Net cash provided by (used in) investing
          activities                                         (38,201)               37,306                 (176,705)
                                                       ------------------    ------------------    ----------------------

Cash flow from financing activities:
    Proceeds from sale of common stock, net                   45,446                     -                  232,823
    Proceeds from issuance of convertible notes                    -                     -                   25,615
    Proceeds from Acqua Wellington agreement, net                  -                     -                   13,163
    Proceeds from exercise of stock options and
    warrants                                                     625                 1,254                    8,949
    Proceeds from notes payable                                    -                   894                    6,533
    Repayment of notes payable                                   (28)               (1,351)                  (1,601)
    Repayment of capital lease obligations                       (21)                  (63)                    (106)
    Receipts from notes receivable from stockholders               -                 1,148                    1,952
    Issuance of common stock for ESPP and other                  158                   142                      744
                                                       ------------------    ------------------    ----------------------
          Net cash provided by financing activities           46,180                 2,024                  288,072
                                                       ------------------    ------------------    ----------------------

Effect of foreign currency translation on cash                     -                   (57)                     (70)

          Net increase (decrease) in cash                     (9,300)               19,877                   32,405

Cash and cash equivalents:
      Beginning of period                                     16,530                12,528                        -
                                                       ------------------    ------------------    ----------------------
      End of period                                    $       7,230         $      32,405         $         32,405
                                                       ==================    ==================    ======================



         The accompanying notes are an integral part of these statements.

                                       5


                  BIOMARIN PHARMACEUTICAL INC. AND SUBSIDIARIES
                          (a development-stage company)

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)

1.    BASIS OF PRESENTATION:

BioMarin  Pharmaceutical  Inc.  (the  Company)  is a  biopharmaceutical  company
specializing   in  the   development  of  enzyme   therapies  to  treat  serious
life-threatening diseases and conditions.  The Company has devoted substantially
all of its efforts to research and development activities, including preclinical
studies and clinical  trials,  the  establishment  of  laboratory,  clinical and
commercial scale manufacturing facilities,  clinical manufacturing,  and related
administrative activities.

The Company was incorporated in 1996 in the state of Delaware and began business
on March 21, 1997  (inception) as a wholly owned  subsidiary of Glyko Biomedical
Ltd. (GBL). In August 2002, the Company  acquired all of the outstanding  common
shares of GBL in exchange for 11,367,617 shares of BioMarin common stock.  GBL's
principal asset was 11,367,617  shares of the Company's common stock, which were
subsequently retired. GBL is now a wholly owned subsidiary of the Company.

In December  2001, the Company  decided to close the business of Glyko,  Inc., a
wholly owned subsidiary. The results of Glyko, Inc.'s operations are included in
the  accompanying  consolidated  statements  of operations as income (loss) from
discontinued operations. Glyko, Inc.'s operations ceased on July 31, 2002.

Through  September  30,  2002,  the Company had  accumulated  losses  during its
development  stage of  approximately  $206.3  million.  Based on current  plans,
management  expects  to  incur  further  losses  for  the  foreseeable   future.
Management  believes that the Company's  cash,  cash  equivalents and short-term
investments  at  September  30, 2002 will be  sufficient  to meet the  Company's
obligations  through the end of 2003. Until the Company can generate  sufficient
levels of cash from its  operations,  the Company expects to continue to finance
future  cash  needs  through  the  sale of  equity  securities,  equipment-based
financing, and collaborative agreements with corporate partners.

The accompanying  unaudited consolidated financial statements have been prepared
in accordance with accounting principles generally accepted in the United States
for interim financial  information on substantially the same basis as the annual
audited consolidated  financial statements.  However, they do not include all of
the  information  and  footnotes  required  by  generally  accepted   accounting
principles for complete financial statements. In the opinion of management,  all
adjustments,  consisting of normal recurring  adjustments,  considered necessary
for a fair presentation have been included.

Operating  results  for  the  nine  months  ended  September  30,  2002  are not
necessarily  indicative  of the results that may be expected for the year ending
December 31, 2002. These  consolidated  financial  statements  should be read in
conjunction with the consolidated financial statements and footnotes thereto for
the year ended  December  31, 2001  included in the  Company's  Form 10-K Annual
Report.

2.       SIGNIFICANT ACCOUNTING POLICIES:

Use of Estimates

The preparation of financial  statements in conformity  with generally  accepted
accounting   principles  requires  management  to  make  certain  estimates  and
assumptions  that  affect  the  reported  amounts  of  assets  and  liabilities,
disclosure of contingent  assets and  liabilities  at the dates of the financial
statements,  and the  reported  amounts  of  revenues  and  expenses  during the
reporting period. Actual results could differ from those estimates.

Short-Term Investments

The   Company   records   its   investments   as  either   held-to-maturity   or
available-for-sale.  The held-to-maturity  investments are recorded at amortized
cost at September 30, 2002. The  available-for-sale  investments are recorded at
fair market value at September  30, 2002 with  unrealized  gains or losses being
included in accumulated other  comprehensive  loss.  Short-term  investments are
comprised mainly of federal agency investments,  bond mutual funds and corporate
bonds. At September 30, 2002, the effect on other  comprehensive loss related to
recording short-term investments as available for sale was $42,000.

                         6


Other Assets

In February  2002,  the Company  loaned an officer  $300,000 and received a full
recourse  promissory note secured by unencumbered shares of the Company owned by
the officer. The note plus accrued interest was paid in October 2002.

Stockholders' Equity

In  September  2002,  the Company  collected  approximately  $1.1  million of an
outstanding   note  from  a  former  officer.   The  remaining  note  amount  of
approximately $600,000 is included in stockholders' equity and is currently due.
This note is collateralized by 1 million shares of the Company's stock.

Net Loss per Share

Potentially  dilutive  securities  outstanding  at  September  30, 2002 and 2001
include  options to acquire  7,866,108  and  6,854,427  shares of common  stock,
respectively and warrants to acquire 779,846 and 752,427 shares of common stock,
respectively.  These  securities  were  not  considered  in the  computation  of
dilutive  loss per share  because  their effect would be  anti-dilutive  for the
three months and the nine months ended September 30, 2002 and 2001.

Recent Accounting Pronouncements

On January 1, 2002, the Company adopted SFAS No. 141 "Business Combinations" and
SFAS No. 144 "Accounting  for the Impairment or Disposal of Long-Lived  Assets".
Adoption of these pronouncements did not have a material impact on the Company's
net loss.

On January 1, 2002,  the Company also adopted SFAS 142 "Goodwill and  Intangible
Assets"  (SFAS 142).  If the  Company  had adopted  SFAS 142 on January 1, 2001,
there  would  have been no change to net loss from  continuing  operations.  The
Company's  net loss and net loss per  share for the  three  months  and the nine
months ended September 30, 2001 would have been $10,511,000,  $31,172,000, $0.25
and $0.79, respectively.

In June 2002, the Financial  Accounting  Standards  Board (FASB) issued SFAS 146
"Accounting for Costs  Associated with Exit or Disposal  Activities"  (SFAS 146)
which  addresses  accounting for  restructuring  and similar costs.  The Company
plans to adopt the provisions of SFAS 146 for restructuring activities initiated
after  December 31, 2002. The Company does not believe that SFAS 146 will have a
material effect on its consolidated financial statements.

Reclassifications

Certain  prior  period  amounts have been  reclassified  to conform with current
period presentation.

3.       NOTES PAYABLE:

In May 2002, the Company entered into an agreement with General Electric Capital
Corporation  (GE) for a secured  loan  totaling  $0.9  million.  The note  bears
interest at 9.33% per annum, is repayable over thirty-six  months and is secured
by certain manufacturing and laboratory equipment.  Additionally,  the agreement
requires  the Company to  maintain a minimum  unrestricted  cash  balance of $35
million.  Should the  unrestricted  cash  balance  fall below $35  million,  the
Company  can  either  provide  GE with an  irrevocable  letter of credit for the
amount of the total notes outstanding or repay the notes.


4.       ACQUISITIONS:

In March 2002,  the Company  purchased  all of the  outstanding  common stock of
Synapse  Technologies Inc. (a privately held Canadian company) for approximately
$10.2 million in Company common stock plus future contingent  milestone payments
totaling  approximately $5.0 million as of September 30, 2002, payable in either
cash or common stock at the Company's  discretion.  At September  30, 2002,  the

                                       7


Company has not accrued any amounts related to this  contingency as they are not
estimable.  The Company  issued  885,242 share of common stock for the purchase.
Synapse's  operations  consist solely of research and development.  Since all of
its activity is related to in-process research and development of technology for
which  technological  feasibility had not yet been  established and for which no
alternative  future uses  exist,  the  purchase  price of $11.2  million,  which
includes $1.0 million in expenses related to transaction  costs and the issuance
of options and  warrants,  were  expensed.  The options and warrants were valued
using the  Black-Scholes  Option  Pricing Model with the following  assumptions:
risk-free  interest rate of 5 percent;  expected dividend yield of zero percent;
expected  lives of 8 years for the options and 3.75 years for the warrants;  and
expected volatility of 61 percent.  The transaction did not meet the criteria of
a business  combination  because the assets acquired did not meet the definition
of a  business  as  outlined  in EITF 98-3  "Determining  Whether a  Nonmonetary
Transaction Involves Receipt of Productive Assets or of a Business".

In August 2002, the Company purchased all of GBL's outstanding  capital stock in
exchange for 11,367,617 shares of common stock of BioMarin. The Company incurred
and expensed  approximately  $1.9  million and $0.4 million of costs  associated
with this transaction in 2002 and 2001, respectively.

The following  unaudited pro forma summary  financial  information  displays the
consolidated  results of  operations  of the Company as if the  acquisition  had
occurred on January 1, 2001.  The pro forma  information  also  assumes that the
Company  acquired the IBEX  therapeutic  assets and Synapse  Technologies,  Inc.
common stock on January 1, 2001. The pro forma  information  is not  necessarily
indicative of the results that actually  would have occurred if the  acquisition
had been  consummated  on  January  1,  2001 nor does it  purport  to  represent
operations for future periods (in thousands, except per share data):


                                                                                 

                                                                    Nine Months Ended September 30,
                                                                   -----------------------------------
                                                                        2001                2002
                                                                   ---------------     ---------------
Revenue                                                            $    8,621          $   10,784
Operating expenses                                                    (40,058)            (50,865)
Loss from continuing operations                                       (34,877)            (46,930)


Loss per share from continuing operations, basic and diluted       $    (0.84)         $    (0.88)
Weighted average common stock outstanding                              41,301              53,270





5.       CLOSURE OF CANADIAN FACILITIES:

In September  2002,  the Company  decided to close its  facilities in Vancouver,
Canada and  downsize  its facility in  Montreal,  Canada.  The Company  recorded
approximately  $0.3 million in severance  costs and a write-down  for  leasehold
improvements and laboratory  equipment that will not be used in the future.  The
Company plans to exit the Vancouver facility by December 31, 2002 and may record
additional facility related expenses at that time.


6.       COMMITMENTS:

In July 2002, the Company signed an agreement with an unrelated  third party for
the manufacturing of Neutralase(TM).  Through September 30, 2002 the Company has
expensed  approximately  $1.0  million.  In 2002 and  2003,  total  expenditures
related to this agreement are expected to aggregate approximately $6.0 million.


7.       RELATED PARTY TRANSACTIONS:

An officer of the Company holds a position with Harbor-UCLA Research Educational
Institute ("REI"). REI licenses certain intellectual property and provides other
research  services to the  Company.  The  Company  paid REI  approximately  $0.3
million and $0.2 million in the three months ended  September 30, 2002 and 2001,
respectively,  and $0.8  million  and $0.7  million  in the  nine  months  ended
September 30, 2002 and 2001, respectively.

                                       8



8.       SUBSEQUENT EVENTS:

In October  2002,  the Company  entered into an agreement  with GE for a secured
loan totaling  approximately $1.3 million.  The note bears interest at 8.11% per
annum,  is  repayable  over   thirty-six   months  and  is  secured  by  certain
manufacturing and laboratory equipment.

                                       9



Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations


                           FORWARD-LOOKING STATEMENTS

     The following "Management's  Discussion and Analysis of Financial Condition
     and Results of Operations" contains "forward-looking statements" as defined
     under  securities laws. These statements can often be identified by the use
     of  terminology  such as  "believes,"  "expects,"  "anticipates,"  "plans,"
     "may,"   "will,"   "projects,"   "continues,"   "estimates,"   "potential,"
     "opportunity" and so on. These forward-looking statements may also be found
     in the "Factors that May Affect Future Results," and other sections of this
     document.  Our actual results or experience could differ significantly from
     the forward-looking  statements.  Factors that could cause or contribute to
     these  differences  include  those  discussed  in "Factors  that May Affect
     Future Results," as well as those discussed elsewhere in this document.

     You should not place undue reliance on these  statements,  which speak only
     as of the date that they were made. These cautionary  statements  should be
     considered  in  connection   with  any  written  or  oral   forward-looking
     statements  that  we may  issue  in the  future.  We do not  undertake  any
     obligation  to release  publicly  any  revisions  to these  forward-looking
     statements  after  completion  of the  filing of this Form 10-Q to  reflect
     later events or circumstances or to reflect the occurrence of unanticipated
     events.

Overview

We develop  enzyme  therapies to treat  serious,  life-threatening  diseases and
conditions.  We leverage  our  expertise  in enzyme  biology to develop  product
candidates    for    the    treatment    of    genetic    diseases,    including
Mucopolysaccharidosis  I  (MPS  I),   Mucopolysaccharidosis   VI  (MPS  VI)  and
Phenylketonuria  (PKU),  as well  as  other  critical  care  situations  such as
cardiovascular surgery and serious burns. Our product candidates address markets
for which no products are  currently  available or where  current  products have
been associated with major deficiencies.

Our lead product  candidate,  Aldurazyme(TM)  is being  developed with our joint
venture partner,  Genzyme Corporation  (Genzyme),  for the treatment of MPS I, a
life threatening genetic disease for which no specific drug treatments currently
exist.

We are  developing  another  product  candidate,  Neutralase,  for  reversal  of
anticoagulation by heparin in patients  undergoing Coronary Artery Bypass Graft,
or CABG,  surgery.  Heparin  is a  carbohydrate  drug  commonly  used to prevent
coagulation,   or  blood  clotting,  during  certain  types  of  major  surgery.
Neutralase is a  carbohydrate-modifying  enzyme that cleaves  heparin,  allowing
coagulation of blood  following  CABG surgery.  We plan to commence the first of
two phase 3  clinical  trials  of  Neutralase  in the  fourth  quarter  of 2002.
Neutralase  may  also  be  useful  as  a  heparin  reversal  agent  in  coronary
angioplasty.  Preclinical  experiments indicate that Neutralase may also reverse
the newer classes of  anticoagulants,  such as the low molecular weight heparins
and the pentasaccharide, fondiparinux.

In 2001,  we announced  the results of a Phase 1 trial of  Aryplase(TM)  for the
treatment of MPS VI, another seriously  debilitating  genetic disease.  Based on
data  from the Phase 1 trial we  initiated  a Phase 2 trial of  Aryplase  in the
first quarter of 2002. We are also  developing  Vibrilase(TM),  a topical enzyme
product for use in  removing  burned  skin  tissue in the  treatment  of serious
burns.  We initiated a Phase 1 clinical trial of Vibrilase in the United Kingdom
in the fourth quarter of 2001, and expect to analyze the results from this trial
in the fourth quarter of 2002.

In addition, we are in preclinical development with several other enzyme product
candidates for genetic and other diseases and conditions. We are continuing with
the development of our preclinical  product,  NeuroTrans.  Additionally,  we are
actively seeking  partners for licensing the NeuroTrans  technology for use with
non-enzyme based treatments, including for the treatment of brain cancers.

Recent Developments

On October  28,  2002,  Genzyme  and we  announced  that the U.S.  Food and Drug
Administration  (FDA)  informed us that the  Aldurazyme  (laronidase)  Biologics
License  Application  (BLA) had been scheduled for review by the  Endocrinologic
and  Metabolic  Drugs  Advisory  Committee on January 15,  2003.  Genzyme and we
anticipate  a  response  from  the  FDA  regarding  the  application  to  market
Aldurazyme in the U.S. by the end of January 2003.

                                       10


On September 30, 2002, we announced  that we completed  critical  steps to begin
patient  enrollment  for our Phase 3 trial of Neutralase for reversal of heparin
in CABG surgery.  Clinical data also suggests that  Neutralase may be a valuable
heparin   reversal  agent  in  angioplasty  and  may  shorten  time  to  patient
ambulation.

On September 16, 2002, we announced that the FDA accepted the Aldurazyme BLA and
granted the application priority review status. Priority review status specifies
that the FDA will  respond to the filing  within six months from the date of the
completed BLA filing, which was July 29, 2002.

On September 12, 2002,  we announced the adoption of a stockholder  rights plan.
The plan was adopted to better protect our  stockholders and assure they receive
full value of their investment in the event of any proposed  takeover of us. The
plan was not  adopted in response  to any  specific  proposal or attempt to gain
control of our company.

On August 22, 2002, we announced the completion of our acquisition of GBL. GBL's
principal asset was an approximate 21% ownership  interest in our capital stock.
As a result of the transaction,  GBL became a wholly owned subsidiary of us with
the number of outstanding shares of our common stock remaining the same.

On July 31, 2002, we announced that the U.S. Patent and Trademark  Office issued
U.S. Patent No. 6,426,208 entitled "Recombinant alpha-L-iduronidase, Methods for
Producing  and Purifying  the Same and Methods for Treating  Diseases  Caused by
Deficiencies  Thereof".  The  patent  relates to unique  characteristics  of the
pharmaceutical composition of Aldurazyme,  including the highly purified form of
recombinant  (alpha)-L-iduronidase  used in Aldurazyme and the use of Aldurazyme
for the treatment of MPS I. Harbor-UCLA  Research and Education  Institute,  the
holder of this patent, granted us an exclusive license for the commercial use of
the rights related to this patent. This patent is part of our continuing efforts
to strengthen the intellectual property position for Aldurazyme.

On July 29, 2002, we announced  that  together  with our joint venture  partner,
Genzyme,  we submitted the final portion of our "rolling" BLA for  Aldurazyme to
the FDA. The filing  commenced on April 12, 2002, as previously  announced.  The
final  portion  of  the  BLA  includes   clinical   data  from  the   six-month,
placebo-controlled  Phase 3 trial of  Aldurazyme,  six  months  of data from the
Phase 3 ongoing  open-label study, Phase 1 data and three years of data from the
open-label extension study.


Results of Operations

In December 2001, we decided to close the  carbohydrate  analytical  business of
our wholly owned  subsidiary,  Glyko, Inc. The decision to close Glyko, Inc. has
resulted in the  operations of Glyko,  Inc.  being  classified  as  discontinued
operations in our consolidated  financial statements and,  accordingly,  we have
segregated  the assets and  liabilities  of the  discontinued  operations in our
consolidated  balance  sheets.  In addition,  we have  segregated  the operating
results in our  consolidated  statements of operations and have  segregated cash
flows from discontinued operations in our consolidated statements of cash flows.
Glyko, Inc. operations ceased on July 31, 2002.

Quarters Ended September 30, 2002 and 2001

For the quarters ended  September 30, 2002 and 2001,  revenues were $3.6 million
and $3.1 million, respectively,  which came from our joint venture with Genzyme.
The increase in joint  venture  revenue in the third quarter of 2002 compared to
the  same  period  in 2001 was  caused  by  increased  manufacturing  costs  for
technical materials for production runs during the third quarter of 2002 of $0.8
million and increased  manufacturing  facility  costs of $0.6 million  offset by
decreased   clinical  efforts  of  $0.7  million  and  a  reduction  in  process
development activities of $0.2 million.

Research  and  development  expenses  increased  to $14.7  million  in the third
quarter  of 2002 from  $10.0  million in  comparable  period of 2001.  The major
increases  include $1.0 million of increased  expenses for the Aldurazyme  joint
venture with Genzyme,  especially in  manufacturing,  $1.4 million for increased
manufacturing and research staff to support our product  programs,  $1.0 million
for  increased  external  manufacturing  costs for  Neutralase,  $0.5 million of
increased  research and  development  costs  associated  with our other  product
programs, and $0.3 million for increased patent expenses.

                                       11


General  and  administrative  expenses  increased  to $3.9  million in the third
quarter  of 2002 from  $2.3  million  in the  comparable  period  of 2001.  This
increase was primarily due to $0.8 million of costs incurred for legal and other
fees associated with the acquisition of all of the outstanding  capital stock of
GBL and increased staffing in finance,  purchasing,  business  development,  and
human  resources  of $0.5  million,  expenses  related to an improved  financial
reporting and budgeting system of $0.1 million,  and an increase in rent expense
of $0.1 million.

Interest  income  increased by $0.1 million to $0.6 million in the third quarter
of 2002 from $0.5 million in the third  quarter of 2001  primarily due to higher
cash balances resulting from financing activities.

Interest  expense was $0.1 million and $8,000 for the third  quarter of 2002 and
2001, respectively.  The increase was due to new, additional  equipment loans of
$5.5 million in December 2001 and $0.9 million in May 2002.

Our equity in the loss of our joint  venture  with  Genzyme was $2.4 million for
the third  quarter of 2002  compared to $1.9  million  for the third  quarter of
2001.  This  increase  was due to  continued  extension  studies  of the Phase 3
clinical trials of Aldurazyme and the filing of a BLA with the FDA.

Our net loss from  continuing  operations  was $16.9  million  ($0.32 per share,
basic and diluted) and $10.6  million  ($0.25 per share,  basic and diluted) for
the third quarter of 2002 and 2001, respectively.

The loss from  discontinued  operations was $0.2 million in the third quarter of
2002 and $0.4  million in the  comparable  period of 2001.  The  decrease in the
third quarter of 2002 was due to the fact that Glyko,  Inc. ceased operations on
July 31, 2002.

The loss on disposal  of  discontinued  operations  represents  the Glyko,  Inc.
closure expense of $8,000 in the third quarter of 2002  consisting  primarily of
employee  severance  incurred  in  connection  with  the  discontinuance  of the
analytics business of Glyko, Inc.

Our net loss was $17.1  million  ($0.32 per share,  basic and diluted) and $11.0
million ($0.26 per share,  basic and diluted) for the third quarters of 2002 and
2001, respectively.


Nine Months Ended September 30, 2002 and 2001

Revenue for the nine months  ended  September  30, 2002  totaled  $10.8  million
compared  to revenue of $8.6  million for the nine months  ended  September  30,
2001.  Revenue came from our joint venture with  Genzyme.  The increase in joint
venture revenue in 2002 compared to the same period in 2001 was primarily caused
by  increased  manufacturing  activities  in  support of our Phase 1 and Phase 3
extension  studies  of $2.9  million,  partially  offset by  decreased  clinical
efforts of $0.4 million and a reduction  in process  development  activities  of
$0.3 million.

Research and  development  expenses for the nine months ended September 30, 2002
increased  by $10.2  million to $41.2  million  from $31.0  million for the same
period in 2001. The major factors  causing the increase  include $4.4 million of
increased  expenses for the  Aldurazyme  joint venture with Genzyme,  especially
manufacturing,  regulatory  and clinical  requirements  and $3.1 million for the
increased manufacturing and research staff to support our product programs, $1.0
million for  increased  external  manufacturing  costs for  Neutralase  and $0.4
million for increased  patent expenses.

General  and  administrative  expenses  increased  to $10.9  million in the nine
months ended  September  30, 2002 from $5.4 million for the same period in 2001.
The significant  factors causing the increase were expenses incurred in 2002 for
legal and other fees  associated  with our acquisition of all of the outstanding
capital  stock of GBL by us of $1.9  million,  increased  staffing  in  finance,
purchasing,  business development and human resources of $1.5 million,  expenses
related to the implementation of an improved  financial  reporting and budgeting
software system of $0.4 million,  an increase in employer matching of our 401(k)
plan of $0.2 million and an increase in rent expense of $0.3 million.

                                       12


In-process  research and  development  expense of $11.2 million  represents  the
majority  of the  purchase  price of all of the  outstanding  stock  of  Synapse
Technologies,  Inc. (Synapse) in March 2002 plus related expenses.  We purchased
Synapse for $10.2  million of our common  stock at a deemed  price of $11.50 per
share  (885,242  shares).  In connection  with the Synapse  purchase,  we issued
options and warrants to purchase  80,221 and 27,419  shares of our common stock,
respectively.  These  options and warrants  were valued using the  Black-Scholes
option  pricing  model and the  resulting  valuations  of $561,000  and $85,000,
respectively, were included as additional purchase price. The purchase agreement
includes up to Cdn. $8 million (which equaled approximately U.S. $5.0 million as
of September  30, 2002) in  contingency  payments  upon  achievement  of certain
regulatory and licensing milestones if they occur before March 21, 2012.

Interest  income was $2.0  million  for nine  months  ended  September  30, 2002
compared to $1.4 million for the same period of 2001.  The increase is primarily
due to higher cash balances resulting from financing activities.

Interest  expense  was  $0.4  million  and  $11,000  for the nine  months  ended
September 30, 2002 and 2001, respectively.  The increase of $0.4 million was due
to new,  additional  equipment  loans of $5.5 million in December  2001 and $0.9
million in May 2002.

Our equity in the loss of our joint  venture  with  Genzyme was $7.1 million for
the nine months ended  September  30, 2002 compared to $4.7 million for the same
period of 2001. The increase is due to continued  extension studies of the Phase
3  clinical  trials of  Aldurazyme,  the  filing of the BLA with the FDA and the
filing of the Marketing Authorization Application (MAA) in Europe.

Our net loss from  continuing  operations  was $58.0  million  ($1.10 per share,
basic and diluted) and $31.1  million  ($0.79 per share,  basic and diluted) for
the nine months ended September 30, 2002 and 2001, respectively.

Income (loss) from discontinued  operations was $0.1 million for the nine months
ended  September 30, 2002 and ($1.6 million) in the  comparable  period of 2001.
The  increase to income in 2002 was due to an increase in sales to  customers in
anticipation  of the sale or  discontinuance  of the  analytics  business  and a
decrease  in general and  administrative  expenses as a result of the closure of
Glyko, Inc.

Loss on disposal of discontinued  operations  represents the Glyko, Inc. closure
expense of $0.2 million for the nine months ended  September 30, 2002 consisting
primarily of accrued  severance and marketing and legal and  investment  banking
fees incurred in connection  with the potential  sale or  discontinuance  of the
analytics business of Glyko, Inc.

Our net loss was $58.1 million ($1.10 per share, basic and diluted) for the nine
months ended  September 30, 2002 compared to a net loss of $32.7 million  ($0.83
per share, basic and diluted) in the comparable period of 2001.


Liquidity and Capital Resources

We have  financed our  operations  since our inception by the issuance of common
stock and convertible notes, equipment financing and the related interest income
earned on cash balances available for short-term investment. Since inception, we
have raised aggregate net proceeds of approximately $288.1 million.  This amount
was  raised  from  the  sale of our  common  stock in both  public  and  private
offerings  and  the  sale of our  other  securities,  all of  which  have  since
converted into common stock.

As of September 30, 2002, our combined  cash,  cash  equivalents  and short-term
investments  totaled  $86.5  million,  a decrease of $44.6  million  from $131.1
million at December  31,  2001.  The primary uses of cash during the nine months
ended September 30, 2002 were to finance operations, fund the joint venture with
Genzyme,  purchase leasehold  improvements and equipment and expenses associated
with the acquisitions of Synapse and GBL (primarily investment banking and legal
fees).  The primary  sources of cash during the nine months ended  September 30,
2002 were  proceeds  from the  repayment of a  stockholder  note,  proceeds from
equipment financing,  proceeds from the issuance of common stock pursuant to the
exercise  of stock  options  under the 1997  Stock  Plan and  proceeds  from the
Employee Stock Purchase Plan.

From our inception through  September 30, 2002, we have purchased  approximately
$55.4 million of leasehold improvements and equipment.

                                       13


As of September 30, 2002,  our total  research and  development  expenses  since
inception were $159.1  million which was allocated  $78.8 million to Aldurazyme,
$3.4 million to Neutralase, $17.5 million to Aryplase, $7.0 million to Vibrilase
and $52.4  million to research and  development  costs not allocated to specific
projects or related to projects that have been abandoned.

For the nine months  ended  September  30, 2002,  our  research and  development
expense of $41.2 million was allocated $21.6 million to Aldurazyme, $3.2 million
to  Neutralase,  $4.7 million to Aryplase,  $0.7 million to Vibrilase  and $11.0
million to research and development cost not allocated to specific projects.

For the quarter ended September 30, 2002, our research and  development  expense
of $14.7  million was  allocated  $7.1  million to  Aldurazyme,  $1.9 million to
Neutralase, $1.4 million to Aryplase, $0.2 million to Vibrilase and $4.1 million
to research and development cost not allocated to specific projects.

We expect to fund our operations with our cash, cash  equivalents and short-term
investments.  For all of 2002, we expect to expend approximately $60 million for
operations and capital expenditures. We expect our current funds to last through
2003.

We do not expect to generate  positive cash flow from  operations at least until
2004  because we expect to continue to incur  operational  expenses and research
and development activities, including:

o        preclinical studies and clinical trials;

o        process development, including quality systems for product manufacture;

o        regulatory processes in the United States and international
         jurisdictions;

o        clinical and commercial scale manufacturing capabilities; and

o        expansion of sales and marketing activities.

Until we can generate  sufficient levels of cash from our operations,  we expect
to continue to fund our operations  through the expenditure of our current cash,
cash  equivalents  and short-term  investments  and  supplement  our cash,  cash
equivalents and short-term  investments  through the sale of equity  securities,
equipment-based financing, and collaborative agreements with corporate partners.

We expect that the net proceeds  from any sales of our common  stock,  equipment
financing or  collaborative  agreements  will be used to fund  operating  costs,
capital expenditures and working capital  requirements,  which may include costs
associated  with our lead  clinical  programs  including  Aldurazyme  for MPS I,
Neutralase  for heparin  reversal,  Aryplase for MPS VI and  Vibrilase  for burn
wounds. In addition,  net proceeds may also be used for research and development
of other pipeline products, building of our supporting infrastructure, and other
general corporate purposes.

There are three current arrangements that may provide us with additional sources
of financing in the future:

o        In September 1998, we established a joint venture with Genzyme for  the
         worldwide  development  and  commercialization  of Aldurazyme  for  the
         treatment  of MPS  I.  We share  expenses and  profits  from  the joint
         venture equally  with Genzyme.  Genzyme  has committed  to pay   us  an
         additional  $12.1 million  upon approval of  the BLA for Aldurazyme. We
         anticipate a response from the FDA by the end of January 2003 regarding
         the "rolling" BLA for Aldurazyme.

o        In August 2001, we  signed an  agreement with  Acqua  Wellington  North
         American Equities Fund Ltd. (Acqua Wellington) for an equity investment
         in us.  The agreement allows for the purchase of up to $27.7 million of
         our common stock.  Under the terms  of the agreement,  we will have the
         option to request that  Acqua Wellington invest in us through  sales of
         registered  common  stock at  a small  discount to  market  price.  The
         maximum amount  that we  may request  to be bought  in any one month is
         dependent upon the market price of our stock  (or an amount that can be
         mutually agreed-upon by both parties)  and is referred to as  the "Draw
         Down  Amount."   Subject to  certain  conditions,  Acqua Wellington  is
         obligated to  purchase this  amount if  requested to  do so by  us.  In
         addition,  we may,  at our discretion,  grant a "Call  Option" to Acqua
         Wellington for an additional  investment in an  amount up to  the "Draw
         Down Amount" which Acqua  Wellington may or may not choose to exercise.
         As of September 30, 2002, we may request a maximum additional aggregate
         investment of  $15.2 million.   Under this agreement,  Acqua Wellington
         may also purchase  stock and receive similar  terms of any other equity
         financing by us.  On September 24, 2002, we  entered into  an amendment
         to this agreement.  This amended agreement extends the termination date
         of this facility to October 15, 2003.

                                       14


o        We  have  entered into  five separate  agreements with  GE for  secured
         loans  totaling $7.8 million.  The notes bear  interest  (ranging  from
         8.11   percent  to  9.33   percent)  and   are   secured   by   certain
         manufacturing  and  laboratory  equipment.  Additionally,  all  of  the
         agreements  are subject to  a covenant that requires  us to  maintain a
         minimum   unrestricted   cash   balance  of  $35  million.  Should  the
         unrestricted  cash  balance  fall  below  $35 million,  we  can  either
         provide GE with an  irrevocable letter of credit  for the amount of the
         total notes outstanding or  repay the notes.  We  expect to enter  into
         additional similar facilities as  we  acquire  additional equipment and
         expand our facilities.

We  anticipate a need for  additional  financing to fund our future  operations,
including  the   commercialization   of  our  drug  products   currently   under
development. We cannot assure you that additional financing will be obtained or,
if obtained, will be available on reasonable terms or in a timely manner.

Our future capital requirements will depend on many factors,  including, but not
limited to:

o        the progress, timing and scope of our  preclinical studies and clinical
         trials;

o        the time and cost necessary to obtain regulatory approvals;

o        the  time  and   cost  necessary to  develop  commercial  manufacturing
         processes,   including  quality   systems  and  to  build  or   acquire
         manufacturing capabilities;

o        the time and cost  necessary  to respond  to  technological  and market
         developments; and

o        any  changes made  or new developments  in our existing  collaborative,
         licensing  and other commercial relationships or any new collaborative,
         licensing and other commercial relationships that we may establish.

We plan to  continue  our policy of  investing  available  funds in  government,
investment grade and interest-bearing securities. We do not invest in derivative
financial instruments.


Critical Accounting Policies

Investment in BioMarin/Genzyme  LLC and Related  Revenue--Under the terms of our
joint venture agreement with Genzyme, Genzyme and we have each agreed to provide
50 percent of the funding for the joint venture.  All research and  development,
sales and marketing,  and other activities performed by Genzyme and us on behalf
of the joint  venture  are billed to the joint  venture at cost.  Any profits or
losses of the joint venture are shared  equally by the two parties.  We provided
$59.9 million in funding to the joint venture from inception  through  September
30, 2002.

We account for our  investment  in the joint  venture  using the equity  method.
Accordingly,  we record a reduction in our  investment  in the joint venture for
our 50 percent  share of the loss of the joint  venture.  The  percentage of the
costs  incurred by us and billed to the joint  venture that are funded by us (50
percent),  is  recorded  as a credit  to our  equity  in the  loss of the  joint
venture.  We recognize 50 percent of the amount  billed to the joint  venture as
revenue in accordance  with our policy to recognize  revenue for billings to the
extent that the payments for the billings were funded by Genzyme.

Impairment of  Long-Lived  Assets--We  regularly  review  long-lived  assets and
identifiable  intangibles  whenever  events or  circumstances  indicate that the
carrying  amount of such assets may not be fully  recoverable.  We evaluate  the
recoverability  of  long-lived  assets by measuring  the carrying  amount of the
assets  against the estimated  undiscounted  future cash flows  associated  with
them. At the time such evaluations  indicate that the future  undiscounted  cash
flows of certain  long-lived  assets are not  sufficient to recover the carrying
value of such assets, the assets are adjusted to their fair values.

                                       15


Income taxes - We record a valuation allowance to reduce our deferred tax assets
to the amount that is more likely than not to be  realized.  We have  recorded a
full  valuation  allowance  against our net  deferred tax asset,  the  principal
amount  of  which is the tax  effect  of net  operating  loss  carryforwards  of
approximately  $61.5  million at December 31, 2001.  We have  considered  future
taxable  income and ongoing  prudent and  feasible tax  planning  strategies  in
assessing the need for the valuation  allowance.  An adjustment to the valuation
allowance  would increase or decrease  income in the period such  adjustment was
made.

                                       16



                     FACTORS THAT MAY AFFECT FUTURE RESULTS

An investment in our common stock  involves a high degree of risk. We operate in
a  dynamic  and  rapidly  changing   industry   involving   numerous  risks  and
uncertainties. The risks and uncertainties described below are not the only ones
we face. Other risks and uncertainties, including those that we do not currently
consider material,  may impair our business. If any of the risks discussed below
actually occur, our business,  financial  condition,  operating  results or cash
flows could be materially adversely affected. This could cause the trading price
of our common stock to decline, and you may lose all or part of your investment.

If we continue to incur operating  losses for a period longer than  anticipated,
we may be unable to continue our  operations at planned  levels and be forced to
reduce or discontinue operations.

We are in an early stage of development and have operated at a net loss since we
were  formed.  Since we began  operations  in March 1997,  we have been  engaged
primarily in research and development. We have no sales revenues from any of our
product  candidates.  As of September 30, 2002, we had an accumulated deficit of
approximately $206.3 million. We expect to continue to operate at a net loss for
at least the next few years. Our future  profitability  depends on our receiving
regulatory  approval of our product  candidates and our ability to  successfully
manufacture and market any approved  drugs,  either by ourselves or jointly with
others.  The extent of our future  losses  and the timing of  profitability  are
highly  uncertain.  If we fail to become  profitable  or are  unable to  sustain
profitability  on a  continuing  basis,  then we may be unable to  continue  our
operations.

If we fail to obtain the capital  necessary to fund our  operations,  we will be
unable to complete our product development programs.

In the  future,  we may need to raise  substantial  additional  capital  to fund
operations.  We may be unable to raise additional financing when needed due to a
variety of factors, including our financial condition, the status of our product
programs,  and the general  condition of the  financial  markets.  If we fail to
raise  additional  financing  as we need  such  funds,  we will have to delay or
terminate some or all of our product development programs.

We expect to continue to spend substantial amounts of capital for our operations
for the foreseeable  future.  The amount of capital we will need depends on many
factors, including:

o        the progress, timing and scope of our preclinical studies and  clinical
         trials;

o        the time and cost necessary to obtain regulatory approvals;

o        the  time  and  cost  necessary  to  develop  commercial  manufacturing
         processes,   including   quality  systems  and  to  build   or  acquire
         manufacturing capabilities;

o        the time  and cost  necessary to  respond to  technological and  market
         developments; and

o        any  changes made or  new developments  in our  existing collaborative,
         licensing and other commercial relationships or any new  collaborative,
         licensing and other commercial relationships that we may establish.

Moreover,   our  fixed  expenses  such  as  rent,  license  payments  and  other
contractual  commitments are substantial and will increase in the future.  These
fixed expenses will increase because we may enter into:

o        additional leases for new facilities and capital equipment;

o        additional licenses and collaborative agreements;

o        additional contracts  for consulting,  maintenance  and  administrative
         services; and

o        additional contracts for product manufacturing.

We believe that our cash, cash equivalents and short term investment  securities
balances at September  30, 2002 will be  sufficient  to meet our  operating  and
capital  requirements through 2003. These estimates are based on assumptions and
estimates,  which may prove to be wrong.  As a result,  we may need or choose to
obtain additional financing during that time.
                                       17


If we fail to obtain regulatory approval to commercially manufacture or sell any
of our future drug  products,  or if  approval is delayed,  we will be unable to
generate  revenue from the sale of our products,  our  potential for  generating
positive  cash flow will be  diminished  and the capital  necessary  to fund our
operations will be increased.

We must obtain regulatory approval before marketing or selling our drug products
in the U.S.  and in  foreign  jurisdictions.  In the U.S.,  we must  obtain  FDA
approval for each drug that we intend to commercialize. The FDA approval process
is typically  lengthy and  expensive,  and approval is never  certain.  Products
distributed  abroad are also subject to foreign government  regulation.  None of
our drug products has received regulatory  approval to be commercially  marketed
and sold. If we fail to obtain regulatory approval,  we will be unable to market
and  sell  our  drug  products.  Because  of  the  risks  and  uncertainties  in
biopharmaceutical  development,  our drug  products  could take a  significantly
longer  time to gain  regulatory  approval  than we  expect  or may  never  gain
approval. If regulatory approval is delayed, our management's  credibility,  and
the value of our company and our operating  results will be adversely  affected.
Additionally,  we will be  unable  to  generate  revenue  from  the  sale of our
products, our potential for generating positive cash flow will be diminished and
the capital necessary to fund our operations will be increased.

To obtain regulatory  approval to market our products,  preclinical  studies and
costly and  lengthy  clinical  trials will be  required,  and the results of the
studies and trials are highly uncertain.

As part of the regulatory approval process, we must conduct, at our own expense,
preclinical  studies in the laboratory on animals and clinical  trials on humans
for each drug product.  We expect the number of preclinical studies and clinical
trials that the regulatory  authorities  will require will vary depending on the
drug product,  the disease or condition  the drug is being  developed to address
and  regulations  applicable  to the  particular  drug.  We may need to  perform
multiple  preclinical studies using various doses and formulations before we can
begin clinical trials, which could result in delays in our ability to market any
of our drug  products.  Furthermore,  even if we  obtain  favorable  results  in
preclinical  studies on  animals,  the  results  in humans may be  significantly
different.

After we have conducted preclinical studies in animals, we must demonstrate that
our drug products are safe and  efficacious for use on the target human patients
in  order to  receive  regulatory  approval  for  commercial  sale.  Adverse  or
inconclusive  clinical results would stop us from filing for regulatory approval
of our drug products.  Additional factors that can cause delay or termination of
our clinical trials include:

o        slow or insufficient patient enrollment;

o        slow  recruitment  of,   and  completion  of   necessary  institutional
         approvals at clinical sites;

o        longer treatment time required to demonstrate efficacy;

o        lack of sufficient supplies of the product candidate;

o        adverse medical events or side effects in treated patients;

o        lack of effectiveness of the product candidate being tested; and

o        regulatory requests for additional clinical trials.

Typically,  if a drug product is intended to treat a chronic disease,  as is the
case with some of the product candidates we are developing,  safety and efficacy
data must be gathered over an extended period of time,  which can range from six
months to three years or more.

We completed a 36-month patient evaluation for the initial clinical trial of our
lead drug product,  Aldurazyme,  for the treatment of MPS I. Two of the original
ten patients enrolled in this trial died in 2000. One of these patients received
103 weeks of Aldurazyme treatment and the other received 137 weeks of treatment.
One of the original forty-five patients who completed the Phase 3 clinical trial
died after 16 weeks of the Phase 3 extension  study. One patient treated under a
single-patient use protocol died after 131 weeks of Aldurazyme treatment.  Based
on medical data collected from clinical investigative sites, none of these cases
directly implicated treatment with Aldurazyme as the cause of death. If cases of
patient  complications  or death are ultimately  attributed to  Aldurazyme,  our
chances of commercializing this drug would be seriously compromised.

                                       18


The fast track designation for our product candidates may not actually lead to a
faster  review  process  and a delay in the review  process or  approval  of our
products  will delay revenue from the sale of the products and will increase the
capital necessary to fund these programs.

Aldurazyme  and Aryplase have obtained fast track  designations,  which provides
certain advantageous procedures and guidelines with respect to the review by the
FDA of the BLA for these  products  and which may  result in our  receipt  of an
initial  response from the FDA earlier than would be received if these  products
had not  received  a fast  track  designation.  However,  these  procedures  and
guidelines do not guarantee that the total review process will be faster or that
approval  will be  obtained,  if at all,  earlier  than would be the case if the
products  had not  received  fast track  designation.  If the review  process or
approval for either product is delayed,  realizing  revenue from the sale of the
products will be delayed and the capital  necessary to fund these  programs will
be increased.

We will not be able to sell our products if we fail to comply with manufacturing
regulations.

Before we can begin  commercial  manufacture  of our  products,  we must  obtain
regulatory approval of our manufacturing  facilities and processes. In addition,
manufacture  of our drug  products  must  comply  with the  FDA's  current  Good
Manufacturing   Practices   regulations,   commonly  known  as  cGMP.  The  cGMP
regulations  govern quality control and  documentation  policies and procedures.
Our manufacturing  facilities are continuously subject to inspection by the FDA,
the State of California  and foreign  regulatory  authorities,  before and after
product approval. Our Galli Drive and our Bel Marin Keys Boulevard manufacturing
facilities  have been  inspected  and  licensed by the State of  California  for
clinical pharmaceutical manufacture. Due to the complexity of the processes used
to manufacture our products,  we may be unable to pass federal or  international
regulatory  inspections in a cost  effective  manner.  For the same reason,  any
potential third party  manufacturer of our drug products may be unable to comply
with cGMP regulations in a cost effective manner.

We must pass federal,  state and European  regulatory  inspections,  and we must
manufacture process  qualification  batches to final  specifications  under cGMP
controls for each of our drug products before the marketing  applications can be
approved.   Although  we  have  completed  process   qualification  batches  for
Aldurazyme,  these batches may be rejected by the regulatory authorities, and we
may be unable to  manufacture  the process  qualification  batches for our other
products or pass the inspections in a timely manner, if at all.

If we fail to obtain  orphan  drug  exclusivity  for some of our  products,  our
competitors may sell products to treat the same conditions and our revenues will
be reduced.

As part of our  business  strategy,  we intend to develop some drugs that may be
eligible  for FDA and  European  Community  orphan drug  designation.  Under the
Orphan  Drug Act,  the FDA may  designate a product as an orphan drug if it is a
drug  intended  to treat a rare  disease  or  condition,  defined  as a  patient
population  of less than  200,000 in the United  States.  The company that first
obtains FDA  approval  for a  designated  orphan  drug for a given rare  disease
receives marketing exclusivity for use of that drug for the stated condition for
a period of seven years.  However,  different drugs can be approved for the same
condition.  Similar  regulations are available in the European  Community with a
ten-year period of market exclusivity.

Because the extent and scope of patent  protection for some of our drug products
is particularly limited,  orphan drug designation is particularly  important for
our products that are eligible for orphan drug designation.  For eligible drugs,
we plan to rely on the exclusivity  period under the orphan drug  designation to
maintain a competitive position. If we do not obtain orphan drug exclusivity for
our drug products, that do not have patent protection,  our competitors may then
sell the same drug to treat the same condition.

Even though we have obtained orphan drug  designation for certain of our product
candidates and even if we obtain orphan drug  designation  for other products we
develop,  due to the  uncertainties  associated with  developing  pharmaceutical
products,  we may not be the first to obtain  marketing  approval for any orphan
indication or, if we are the first, that exclusivity  would effectively  protect
the product  from  competition.  Orphan drug  designation  neither  shortens the
development  time or  regulatory  review  time of a drug nor  gives the drug any
advantage in the regulatory review or approval process.

                                       19


Because the target patient  populations  for some of our products are small,  we
must achieve significant market share and obtain high per patient prices for our
products to achieve profitability.

Two of our lead drug candidates,  Aldurazyme and Aryplase,  target diseases with
small  patient  populations.  As  a  result,  our  per-patient  prices  must  be
relatively  high  in  order  to  recover  our  development   costs  and  achieve
profitability.  Aldurazyme  targets  patients  with MPS I and  Aryplase  targets
patients with MPS VI. We estimate that there are  approximately  3,400  patients
with MPS I and 1,100  patients  with MPS VI in the developed  world.  We believe
that we will need to market  worldwide to achieve  significant  market share. In
addition,  we are developing other drug candidates to treat conditions,  such as
other genetic diseases and serious burn wounds, with small patient  populations.
Due to the expected costs of treatment for  Aldurazyme  and Aryplase,  we may be
unable to obtain  sufficient  market share for our drug products at a price high
enough to  justify  our  product  development  efforts.

If we fail to obtain an adequate level of reimbursement for our drug products by
third-party  payers, the sales of our drugs would be adversely affected or there
may be no commercially viable markets for our products.

The  course  of  treatment  for  patients  with MPS I using  Aldurazyme  and for
patients  with MPS VI using  Aryplase  is expected  to be  expensive.  We expect
patients  to need  treatment  throughout  their  lifetimes.  We expect that most
families  of  patients  will  not  be  capable  of  paying  for  this  treatment
themselves.  There  will be no  commercially  viable  market for  Aldurazyme  or
Aryplase without  reimbursement from third-party payers.  Additionally,  even if
there is a commercially  viable market,  if the level of  reimbursement is below
our expectations, our revenue and gross margins will be adversely effected.

Third-party  payers,  such  as  government  or  private  health  care  insurers,
carefully  review  and  increasingly  challenge  the prices  charged  for drugs.
Reimbursement  rates from private  companies vary  depending on the  third-party
payer,  the  insurance  plan  and  other  factors.   Reimbursement   systems  in
international   markets  vary  significantly  by  country  and  by  region,  and
reimbursement approvals must be obtained on a country-by-country basis.

We currently have no expertise obtaining reimbursement. We expect to rely on the
expertise of our joint venture partner Genzyme to obtain  reimbursement  for the
costs of Aldurazyme.  In addition, we will need to develop our own reimbursement
expertise for future drug candidates  unless we enter into  collaborations  with
other  companies  with  the  necessary  expertise.  We will  not  know  what the
reimbursement  rates  will be until we are ready to market  the  product  and we
actually  negotiate  the  rates.  If we are unable to obtain  sufficiently  high
reimbursement  rates, our products may not be commercially  viable or our future
revenues and gross margins may be adversely affected.

We expect that, in the future,  reimbursement  will be  increasingly  restricted
both in the United States and  internationally.  The  escalating  cost of health
care has led to increased  pressure on the health care industry to reduce costs.
Governmental  and private  third-party  payers have proposed health care reforms
and cost reductions. A number of federal and state proposals to control the cost
of health  care,  including  the cost of drug  treatments  have been made in the
United States.  In some foreign  markets,  the  government  controls the pricing
which would affect the profitability of drugs.  Current  government  regulations
and possible future legislation  regarding health care may affect  reimbursement
for medical treatment by third-party  payers,  which may render our products not
commercially  viable or may  adversely  affect  our  future  revenues  and gross
margins.

If we are unable to protect our  proprietary  technology,  we may not be able to
compete as effectively.

Where  appropriate,  we  seek  patent  protection  for  certain  aspects  of our
technology.  Patent  protection  may not be available for some of the enzymes we
are  developing.  If we must spend  significant  time and money  protecting  our
patents,  designing around patents held by others or licensing,  for large fees,
patents or other proprietary  rights held by others,  our business and financial
prospects may be harmed.

The patent  positions of biotechnology  products are complex and uncertain.  The
scope and extent of patent  protection for some of our products are particularly
uncertain  because key  information on some of the enzymes we are developing has
existed in the public domain for many years.  Other  parties have  published the
structure of the enzymes,  the methods for purifying or producing the enzymes or
the methods of treatment. The composition and genetic sequences of animal and/or
human versions of many of our enzymes have been published and are believed to be
in the public domain. The composition and genetic sequences of other MPS enzymes
that we intend to develop as products have also been  published.  Publication of
this  information may prevent us from obtaining  composition-of-matter  patents,
which are  generally  believed to offer the  strongest  patent  protection.  For
enzymes with no prospect of broad composition-of-matter  patents, other forms of
patent  protection  or orphan  drug  status may  provide  us with a  competitive
advantage.  As a result of these  uncertainties,  investors  should  not rely on
patents as a means of protecting our product candidates, including Aldurazyme.

                                       20


We own or license  patents  and patent  applications  to certain of our  product
candidates.  However,  these patents and patent  applications  do not ensure the
protection of our intellectual property for a number of other reasons, including
the following:

o        We do not  know whether our  patent applications  will result in issued
         patents. For example, we may not have developed a method for treating a
         disease before others developed similar methods.

o        Competitors may interfere with our patent process in a variety of ways.
         Competitors may claim that they invented the claimed invention prior to
         us.  Competitors may also claim that we are infringing on their patents
         and  therefore  cannot  practice our  technology  as claimed  under our
         patent. Competitors may also  contest our patents by showing the patent
         examiner  that  the invention  was not  original, was  not novel or was
         obvious.  In  litigation, a  competitor  could claim  that  our  issued
         patents are not valid for a number of  reasons.  If a  court agrees, we
         would lose that patent.  As a company, we have no meaningful experience
         with competitors interfering with our patents or patent applications.

o        Enforcing patents is expensive  and may absorb  significant time of our
         management.  Management   would  spend  less  time   and  resources  on
         developing products, which could increase our research and  development
         expense and delay product programs.

o        Receipt of  a patent may  not provide much  practical protection. If we
         receive a  patent  with a  narrow scope,  then it  will  be  easier for
         competitors to design products that do not infringe on our patent.

In addition,  competitors also seek patent protection for their technology.  Due
to the number of patents in our field of  technology,  we cannot be assured that
we do not  infringe  on those  patents or that we will not  infringe  on patents
granted in the future.  If a patent  holder  believes  our product  infringes on
their  patent,  the  patent  holder may sue us even if we have  received  patent
protection  for our  technology.  If someone  else  claims we  infringe on their
technology, we would face a number of issues, including the following:

o        Defending a lawsuit takes significant time and can be very expensive.

o        If the  court decides  that our product  infringes on  the competitor's
         patent, we may have to pay substantial damages for past infringement.

o        The court may prohibit us from selling or licensing the product  unless
         the patent holder  licenses the patent  to us. The patent holder is not
         required to grant us a license. If a license is available, we may  have
         to pay substantial royalties or grant cross-licenses to our patents.

o        Redesigning our product so it does not infringe may not be possible  or
         could require substantial funds and time.

It is also unclear whether our trade secrets are adequately protected.  While we
use  reasonable  efforts  to  protect  our  trade  secrets,   our  employees  or
consultants  may  unintentionally  or  willfully  disclose  our  information  to
competitors. Enforcing a claim that someone else illegally obtained and is using
our trade secrets, like patent litigation,  is expensive and time consuming, and
the outcome is unpredictable.  In addition, courts outside the United States are
sometimes  less  willing  to  protect  trade  secrets.   Our   competitors   may
independently develop equivalent knowledge, methods and know-how.

We may  also  support  and  collaborate  in  research  conducted  by  government
organizations  or  by   universities.   These   government   organizations   and
universities  may be unwilling to grant us any exclusive rights to technology or
products  derived  from  these   collaborations   prior  to  entering  into  the
relationship.  If we do  not  obtain  required  licenses  or  rights,  we  could
encounter delays in product  development while we attempt to design around other
patents or even be prohibited from developing, manufacturing or selling products
requiring these licenses. There is also a risk that disputes may arise as to the
rights to technology or products developed in collaboration with other parties.

                                       21


The United States Patent and Trademark  Office has issued two patents to a third
party that relate to  (alpha)-L-iduronidase.  If we are not able to successfully
challenge these patents,  we may be prevented from producing  Aldurazyme  unless
and until we obtain a license.

The United States Patent and Trademark  Office has issued two patents to a third
party  that  include   composition-of-matter   and  method  of  use  claims  for
recombinant  (alpha)-L-iduronidase.  Our lead drug product, Aldurazyme, is based
on recombinant (alpha)-L-iduronidase.  We believe that these patents are invalid
on a number of grounds.  A  corresponding  patent  application  was filed in the
European   Patent  Office   claiming   composition-of-matter   for   recombinant
(alpha)-L-iduronidase,  and it was  rejected  over prior art and  withdrawn  and
cannot be re-filed.  Nonetheless, under U.S. law, issued patents are entitled to
a  presumption  of  validity,  and our  challenges  to the U.S.  patents  may be
unsuccessful.  Even if we are successful,  challenging  the U.S.  patents may be
expensive,  require our management to devote significant time to this effort and
may delay commercialization of Aldurazyme in the United States.

Although the United States Patent and  Trademark  Office issued U.S.  Patent No.
6,426,208 covering  Aldurazyme for the treatment of MPS I, which was licensed to
us, this patent does not necessarily invalidate or give us the right to infringe
upon the patents related to the  composition-of-matter and method of use claims
for recombinant  (alpha)-L-iduronidase  previously issued to the unrelated third
party. If we are unable to successfully  challenge the third party's patents, we
may be unable to produce  Aldurazyme in the United States unless we can obtain a
sublicense from the current licensee.

If our joint  venture  with  Genzyme  were  terminated,  we could be barred from
commercializing  Aldurazyme or our ability to commercialize  Aldurazyme would be
delayed or diminished.

We are relying on Genzyme to apply the  expertise it has  developed  through the
launch and sale of other  enzyme-based  products to the marketing of our initial
drug product,  Aldurazyme. We have no experience selling, marketing or obtaining
reimbursement for pharmaceutical products. In addition, without Genzyme we would
be required to pursue  foreign  regulatory  approvals.  We have no experience in
seeking foreign regulatory approvals.

Either  Genzyme or we may terminate  the joint  venture for  specified  reasons,
including  if the other  party is in  material  breach of the  agreement  or has
experienced a change of control or has declared bankruptcy and also is in breach
of the  agreement.  Although we are not currently in breach of the joint venture
agreement  and we believe that  Genzyme is not  currently in breach of the joint
venture agreement,  there is a risk that either party could breach the agreement
in the future. Either party may also terminate the agreement upon one-year prior
written notice for any reason.  Furthermore,  we may terminate the joint venture
if Genzyme fails to fulfill its  contractual  obligation to pay us $12.1 million
in cash upon the approval of the BLA for Aldurazyme.

If the joint venture is terminated for breach, the non-breaching  party would be
granted,   exclusively,  all  of  the  rights  to  Aldurazyme  and  any  related
intellectual property and regulatory approvals and would be obligated to buy out
the breaching  party's  interest in the joint  venture.  If we are the breaching
party,  we would  lose our rights to  Aldurazyme  and the  related  intellectual
property and regulatory  approvals.  If the joint venture is terminated  without
cause,  the  non-terminating  party would have the option,  exercisable  for one
year,  to buy out the  terminating  party's  interest  in the joint  venture and
obtain all rights to Aldurazyme exclusively.  In the event of termination of the
buy out option without exercise by the non-terminating party as described above,
all right and title to Aldurazyme is to be sold to the highest bidder,  with the
proceeds to be split equally between Genzyme and us.

If the joint venture is  terminated  by either party because the other  declared
bankruptcy and is also in breach of the agreement,  the terminating  party would
be  obligated  to buy out the other and would  obtain all  rights to  Aldurazyme
exclusively.  If the joint  venture is  terminated  by a party because the other
party  experienced a change of control,  the terminating  party shall notify the
other party, the offeree, of its intent to buy out the offeree's interest in the
joint  venture  for a  stated  amount  set  by  the  terminating  party  at  its
discretion.  The offeree must then either  accept this offer or agree to buy the
terminating party's interest in the joint venture on those same terms. The party
who buys out the other would then have exclusive rights to Aldurazyme.

                                       22


If we were obligated,  or given the option, to buy out Genzyme's interest in the
joint  venture,  and  gain  exclusive  rights  to  Aldurazyme,  we may not  have
sufficient  funds to do so and we may not be able to obtain the  financing to do
so.  If we fail to buy out  Genzyme's  interest  we may be held in breach of the
agreement  and may lose any claim to the rights to  Aldurazyme  and the  related
intellectual  property and regulatory  approvals.  We would then  effectively be
prohibited from developing and commercializing the product.

Termination  of the joint  venture in which we retain  the rights to  Aldurazyme
could  cause us  significant  delays in  product  launch in the  United  States,
difficulties  in obtaining  third-party  reimbursement  and delays or failure to
obtain  foreign  regulatory  approval,  any of which could hurt our business and
results of operations.  Since Genzyme funds 50% of the joint venture's operating
expenses, the termination of the joint venture would double our financial burden
and reduce the funds available to us for other product programs.

If we are unable to manufacture  our drug products in sufficient  quantities and
at  acceptable  cost,  we may be unable to meet demand for our products and lose
potential revenues or have reduced margins.

Although we have  successfully  manufactured  Aldurazyme at commercial scale and
within our cost parameters,  due to the complexity of manufacturing our products
we may not be able to  manufacture  any other drug product  successfully  with a
commercially  viable  process  or at a  scale  large  enough  to  support  their
respective commercial markets or at acceptable margins.

Our  manufacturing  processes  may  not  meet  initial  expectations  and we may
encounter problems with any of the following if we attempt to increase the scale
or size or improve the commercial viability of our manufacturing processes:

o        design, construction and qualification of manufacturing facilities that
         meet regulatory requirements;

o        schedule;

o        reproducibility;

o        production yields;

o        purity;

o        costs;

o        quality control and assurance systems;

o        shortages of qualified personnel; and

o        compliance with regulatory requirements.

Improvements in manufacturing  processes typically are very difficult to achieve
and are  often  very  expensive  and may  require  extended  periods  of time to
develop. If we contract for manufacturing services with an unproven process, our
contractor is subject to the same  uncertainties,  high standards and regulatory
controls.

The  availability  of suitable  contract  manufacturing  at scheduled or optimum
times is not  certain.  The  cost of  contract  manufacturing  is  greater  than
internal  manufacturing  and therefore our  manufacturing  processes  must be of
higher productivity to yield equivalent margins.

The manufacture of Neutralase  involves the fermentation of a bacterial species.
We have never used a  bacterial  production  process for the  production  of any
commercial product.  IBEX Technologies Inc., from which we acquired  Neutralase,
had contracted  with a third party for the manufacture of the Neutralase used in
prior  clinical  trials.  We have  also  contracted  with a third  party for the
manufacture of additional quantities of Neutralase.

We have built-out  approximately 51,800 square feet at our Novato facilities for
manufacturing  capability for Aldurazyme and Aryplase  including related quality
control laboratories,  materials  capabilities,  and support areas. We expect to
add additional  capabilities in stages over time, which could create  additional
operational complexity and challenges.  We expect that the manufacturing process
of all of our new drug products, including Aryplase and Neutralase, will require
significant  time and resources before we can begin to manufacture them (or have
them manufactured by third parties) in commercial quantity at acceptable cost.

                                       23


In  order to  achieve  our  product  cost  targets,  we must  develop  efficient
manufacturing processes either by:

o        improving the product  yield from our  current cell lines,  colonies of
         cells which have a common genetic makeup;

o        improving the manufacturing processes licensed from others; or

o        developing  more  efficient,  lower  cost recombinant  cell  lines  and
         production processes.

A recombinant cell line is a cell line with foreign DNA inserted that is used to
produce an enzyme or other  protein that it would not have  otherwise  produced.
The  development of a stable,  high production cell line for any given enzyme is
difficult, expensive and unpredictable and may not result in adequate yields. In
addition, the development of protein purification processes is difficult and may
not produce the high purity required with acceptable  yield and costs or may not
result in  adequate  shelf-lives  of the final  products.  If we are not able to
develop  efficient  manufacturing  processes,  the  investment in  manufacturing
capacity sufficient to satisfy market demand will be much greater and will place
heavy  financial  demands upon us. If we do not achieve our  manufacturing  cost
targets,  we will have lower  margins and reduced  profitability  in  commercial
production and larger losses in manufacturing start-up phases.

If we are unable to create marketing and  distribution  capabilities or to enter
into  agreements  with third parties to do so, our ability to generate  revenues
will be diminished.

If we  cannot  expand  capabilities  either  by  developing  our own  sales  and
marketing  organization or by entering into  agreements  with others,  we may be
unable to successfully sell our products. We believe that developing an internal
sales  and  distribution  capability  will  be  expensive  and  time  consuming.
Alternatively,  we may enter into  agreements  with third  parties to market our
products.  For  example,  under our  joint  venture  with  Genzyme,  Genzyme  is
responsible  for marketing and  distributing  Aldurazyme.  However,  these third
parties may not be capable of successfully selling any of our drug products.

With  our  acquisition  of  Neutralase  we have an  enzyme  product  that  has a
significantly  larger potential patient  population than Aldurazyme and Aryplase
and will be marketed  and sold to  different  target  audiences  with  different
therapeutic  and  financial  requirements  and  needs.  As a result,  we will be
competing with other  pharmaceutical  companies with experienced and well-funded
sales  and  marketing   operations   targeting  these  specific   physician  and
institutional  audiences.  We may not be  able to  develop  our  own  sales  and
marketing  force at all, or of a size that would allow us to compete  with these
other  companies.   If  we  elect  to  enter  into  third-party   marketing  and
distribution  agreements in order to sell into these markets, we may not be able
to enter into these  agreements  on  acceptable  terms,  if at all. If we cannot
compete  effectively in these specific physician and institutional  markets,  it
would adversely affect sales of Neutralase.

If we fail to compete  successfully  with  respect to product  sales,  we may be
unable to  generate  sufficient  sales to recover  our  expenses  related to the
development of a product program or to justify continued marketing of a product.

Our  competitors  may develop,  manufacture  and market  products  that are more
effective or less expensive than ours. They may also obtain regulatory approvals
for their products faster than we can obtain them (including those products with
orphan drug  designation)  or  commercialize  their products  before we do. With
respect  to  Aldurazyme   and   Aryplase,   if  our   competitors   successfully
commercialize a product that treats MPS I or MPS VI, respectively, before we do,
we may  effectively be precluded from developing a product to treat that disease
because the patient  populations  of the  diseases  are so small.  If one of our
competitors gets orphan drug  exclusivity,  we could be precluded from marketing
our  version for seven years in the U.S.  and ten years in the  European  Union.
However,  different drugs can be approved for the same  condition.  If we do not
compete  successfully,  we may be unable to generate sufficient sales to recover
our  expenses  related  to the  development  of a product  program or to justify
continued marketing of a product.

If we fail to compete  successfully with respect to acquisitions,  joint venture
and other  collaboration  opportunities,  we may be  limited  in our  ability to
develop new products and to continue to expand our product pipeline.

                                       24


Our competitors compete with us to attract organizations for acquisitions, joint
ventures,  licensing  arrangements or other collaborations.  To date, several of
our product programs have been acquired through acquisitions, such as Neutralase
and NeuroTrans,  and several of our product programs have been developed through
licensing or collaborative arrangements, such as Aldurazyme and Vibrilase. These
collaborations   include  licensing  proprietary   technology  from,  and  other
relationships   with  academic   research   institutions.   If  our  competitors
successfully  enter into  partnering  arrangements  or license  agreements  with
academic  research  institutions,  we will then be precluded from pursuing those
specific opportunities.  Since each of these opportunities is unique, we may not
be able to find a substitute. Several pharmaceutical and biotechnology companies
have  already  established  themselves  in the  field  of  enzyme  therapeutics,
including Genzyme, our joint venture partner. These companies have already begun
many drug  development  programs,  some of which may target diseases that we are
also  targeting,   and  have  already  entered  into  partnering  and  licensing
arrangements with academic research institutions, reducing the pool of available
opportunities.

Universities and public and private  research  institutions are also competitors
with us. While these organizations  primarily have educational or basic research
objectives,  they may develop proprietary technology and acquire patents that we
may need for the  development of our drug  products.  We will attempt to license
this proprietary technology,  if available.  These licenses may not be available
to us on acceptable  terms, if at all. If we are unable to compete  successfully
with   respect  to   acquisitions,   joint   venture  and  other   collaboration
opportunities,  we may be limited in our ability to develop new  products and to
continue to expand our product pipeline.

If we do not  achieve  our  projected  development  goals in the time  frames we
announce and expect,  the  commercialization  of our products may be delayed and
the  credibility of our  management may be adversely  affected and, as a result,
our stock price may decline.

For planning  purposes,  we estimate the timing of the accomplishment of various
scientific,  clinical,  regulatory and other product development goals, which we
sometimes refer to as milestones.  These milestones may include the commencement
or completion of scientific  studies and clinical  trials and the  submission of
regulatory filings.  From time to time, we publicly announce the expected timing
of some of these  milestones.  All of these milestones are based on a variety of
assumptions.  The  actual  timing  of these  milestones  can  vary  dramatically
compared to our estimates,  in many cases for reasons beyond our control.  If we
do not meet these milestones as publicly announced, the commercialization of our
products may be delayed and the  credibility  of our management may be adversely
affected and, as a result, our stock price may decline.

If we fail to manage  our growth or fail to recruit  and retain  personnel,  our
product development programs may be delayed.

Our rapid growth has strained our managerial,  operational,  financial and other
resources.  We expect  this growth to  continue.  We have  entered  into a joint
venture with Genzyme.  If we receive FDA and/or foreign  government  approval to
market  Aldurazyme,  the joint  venture  will be required  to devote  additional
resources to support the commercialization of Aldurazyme.

To manage expansion effectively,  we need to continue to develop and improve our
research and development  capabilities,  manufacturing  and quality  capacities,
sales and marketing  capabilities and financial and administrative  systems. Our
staff, financial resources, systems, procedures or controls may be inadequate to
support our operations  and our management may be unable to manage  successfully
future market  opportunities or our relationships with customers and other third
parties.

Our future growth and success depend on our ability to recruit,  retain,  manage
and motivate our employees. The loss of key scientific, technical and managerial
personnel may delay or otherwise harm our product development programs. Any harm
to our research and development programs would harm our business and prospects.

Because of the specialized  scientific and managerial nature of our business, we
rely  heavily  on our  ability  to  attract  and  retain  qualified  scientific,
technical and managerial personnel. In particular, the loss of Fredric D. Price,
our Chairman and Chief Executive  Officer,  or Emil D. Kakkis,  M.D., Ph.D., our
Senior Vice President of Business Operations or Christopher M. Starr, Ph.D., our
Senior Vice President of Scientific Operations, could be detrimental to us if we
cannot recruit  suitable  replacements in a timely manner.  While Mr. Price, Dr.
Kakkis  and Dr.  Starr are  parties  to  employment  agreements  with us,  these
agreements  do not  guarantee  that they  will  remain  employed  with us in the
future.  In addition,  these agreements do not restrict their ability to compete
with us after their  employment is  terminated.  The  competition  for qualified
personnel  in the  biopharmaceutical  field  is  intense.  Due to  this  intense
competition,  we may be unable to  continue  to  attract  and  retain  qualified
personnel necessary for the development of our business.

                                       25


Changes in methods of treatment of disease could reduce demand for our products.

Even if our drug products are approved, doctors must use treatments that require
using those products. If doctors elect a different course of treatment from that
which includes our drug products, this decision would reduce demand for our drug
products.

Examples  include the potential use in the future of effective  gene therapy for
the treatment of genetic diseases.  The use of gene therapy could  theoretically
reduce or  eliminate  the use of enzyme  replacement  therapy  in MPS  diseases.
Sometimes,  this change in treatment method can be caused by the introduction of
other  companies'  products or the  development of new  technologies or surgical
procedures  which may not directly  compete with ours, but which have the effect
of changing how doctors  decide to treat a disease.  For example,  Neutralase is
being  developed  for heparin  reversal in coronary  artery  bypass graft (CABG)
surgery. It is possible that alternative  non-surgical methods of treating heart
disease could be developed.  If so, then the demand for Neutralase  would likely
decrease.

If product liability lawsuits are successfully  brought against us, we may incur
substantial liabilities.

We are exposed to the potential product liability risks inherent in the testing,
manufacturing and marketing of human  pharmaceuticals.  The BioMarin/Genzyme LLC
maintains product liability insurance for our clinical trials of Aldurazyme with
aggregate  loss  limits of $5.0  million.  We have  obtained  insurance  against
product liability  lawsuits for the clinical trials for Aryplase,  Vibrilase and
Neutralase with aggregate loss limits of $8.0 million.  Pharmaceutical companies
must balance the cost of insurance with the level of coverage based on estimates
of potential  liability.  Historically,  the potential liability associated with
product liability lawsuits for pharmaceutical  products has been  unpredictable.
Although we believe that our current  insurance is a reasonable  estimate of our
potential  liability and represents a commercially  reasonable  balancing of the
level of coverage as compared to the cost of the insurance, we may be subject to
claims in connection with our current clinical trials for Aldurazyme,  Aryplase,
Vibrilase  and  Neutralase  for  which  the  joint  venture's  or our  insurance
coverages are not adequate.

If  Aldurazyme,  Aryplase,  Vibrilase or Neutralase  receives FDA approval,  the
product  liability  insurance  the  joint  venture  or we will need to obtain in
connection  with the  commercial  sales of  Aldurazyme,  Aryplase,  Vibrilase or
Neutralase may be unavailable in meaningful  amounts or at a reasonable cost. In
addition,  while we take, and continue to take,  what we believe are appropriate
precautions,  we may be unable to avoid  significant  liability  if any  product
liability  lawsuit is brought  against us. If we are the subject of a successful
product  liability  claim that exceeds the limits of any  insurance  coverage we
obtain,  we may incur  substantial  liabilities  that would adversely affect our
earnings and require the commitment of capital resources that might otherwise be
available for the development and commercialization of our product programs.

Our stock price may be volatile,  and an  investment in our stock could suffer a
decline in value.

Our  valuation  and stock price since the beginning of trading after our initial
public  offering  have had no meaningful  relationship  to current or historical
earnings,  asset values, book value or many other criteria based on conventional
measures of stock value. The market price of our common stock will fluctuate due
to factors including:

o        progress of Aldurazyme, Neutralase,  Aryplase and  our other  lead drug
         products through the regulatory process, especially regulatory  actions
         in the United States related to Aldurazyme;

o        results of clinical trials, announcements of technological  innovations
         or new products by us or our competitors;

o        government  regulatory  action  affecting  our  drug  products  or  our
         competitors'  drug  products  in both  the United  States  and  foreign
         countries;

o        developments or disputes concerning patent or proprietary rights;

                                       26


o        general market conditions and fluctuations for the emerging growth  and
         biopharmaceutical market sectors;

o        economic conditions in the United States or abroad;

o        actual or anticipated fluctuations in our operating results;

o        broad market fluctuations in the United States or in Europe, which  may
         cause the market price of our common stock to fluctuate; and

o        changes in company  assessments or  financial  estimates  by securities
         analysts.

In addition, the value of our common stock may fluctuate because it is listed on
both the Nasdaq National Market and the Swiss Exchange's SWX New Market. Listing
on both exchanges may increase stock price volatility due to:

o        trading in different time zones;

o        different ability to buy or sell our stock;

o        different market conditions in different capital markets; and

o        different trading volume.


In the past,  following  periods of large price  declines  in the public  market
price of a company's  securities,  securities class action  litigation has often
been  initiated  against that  company.  Litigation of this type could result in
substantial costs and diversion of management's  attention and resources,  which
would hurt our business.  Any adverse  determination  in  litigation  could also
subject us to significant liabilities.

Anti-takeover provisions in our charter documents, our stockholders' rights plan
and under Delaware law may make an acquisition of us, which may be beneficial to
our stockholders, more difficult.

We are incorporated in Delaware.  Certain  anti-takeover  provisions of Delaware
law and our  charter  documents  as  currently  in  effect  may make a change in
control of our  company  more  difficult,  even if a change in control  would be
beneficial to the stockholders.  Our anti-takeover provisions include provisions
in the certificate of incorporation  providing that  stockholders'  meetings may
only be called by the board of directors and a provision in the bylaws providing
that the stockholders may not take action by written consent.  Additionally, our
board of directors has the authority to issue an  additional  249,886  shares of
preferred  stock and to determine the terms of those shares of stock without any
further  action by the  stockholders.  The rights of holders of our common stock
are  subject to the rights of the  holders  of any  preferred  stock that may be
issued. The issuance of preferred stock could make it more difficult for a third
party to acquire a majority of our outstanding  voting stock.  Delaware law also
prohibits  corporations from engaging in a business combination with any holders
of 15% or more of their  capital  stock  until the holder has held the stock for
three years unless, among other  possibilities,  the board of directors approves
the  transaction.  Our board of directors  may use these  provisions  to prevent
changes in the management  and control of our company.  Also,  under  applicable
Delaware law, our board of directors may adopt additional anti-takeover measures
in the future.

On September 11, 2002, our board of directors  authorized a stockholders' rights
plan and related  dividend of one preferred  share purchase right for each share
of our common stock  outstanding at the close of business on September 23, 2002.
As long as these  rights are  attached  to our common  stock,  we will issue one
right with each new share of common stock so that all shares of our common stock
will have  attached  rights.  When  exercisable,  each  right will  entitle  the
registered holder to purchase from us one one-hundredth of a share of our Series
B Junior Participating Preferred Stock at a price of $35.00 per one-hundredth of
a preferred share, subject to adjustment.

The rights are designed to assure that all of our stockholders  receive fair and
equal treatment in the event of any proposed takeover of us and to guard against
partial tender offers,  open market  accumulations  and other abusive tactics to
gain control of us without paying all stockholders a control premium. The rights
will cause  substantial  dilution to a person or group that acquires 15% or more
of our  stock on terms not  approved  by our board of  directors.  However,  the
rights  may have the  effect  of  making  an  acquisition  of us,  which  may be
beneficial to our stockholders, more difficult, and the existence of such rights
my prevent  or reduce the  likelihood  of a third  party  making an offer for an
acquisition of us.

                                       27


The ability of our  stockholders  to recover against Arthur Andersen LLP, may be
limited due to recent developments involving Arthur Andersen.

Our  audited  consolidated   financial  statements  and  the  audited  financial
statements  of  IBEX  Technologies  Inc./Technologies  IBEX  Inc.--  Therapeutic
Enzymes  Division  and GBL in our  Annual  Report  on Form  10-K  and our  Proxy
Statement  dated July 5, 2002 have been  audited  by Arthur  Andersen  LLP.  The
ability of Arthur Andersen LLP to satisfy any claims properly brought against it
for  any  untrue  statement  of  material  fact  contained  in  these  financial
statements  may be limited  as a  practical  matter  due to recent  developments
involving Arthur Andersen LLP.


Item 3.  Quantitative and Qualitative Disclosure about Market Risk

Our exposure to market risk for changes in interest  rates relates  primarily to
our investment portfolio.  By policy, we place our investments with highly rated
credit  issuers and limit the amount of credit  exposure  to any one issuer.  As
stated  in our  policy,  we  seek  to  improve  the  safety  and  likelihood  of
preservation of our invested funds by limiting  default risk and market risk. We
have no investments  denominated in foreign country currencies and therefore are
not subject to foreign exchange risk.

We mitigate  default risk by investing in high credit quality  securities and by
positioning our portfolio to respond appropriately to a significant reduction in
a credit rating of any investment  issuer or guarantor.  The portfolio  includes
only  marketable  securities  with active  secondary or resale markets to ensure
portfolio liquidity.

Based on our  investment  portfolio and interest rates at September 30, 2002, we
believe  that a 100 basis point  increase  or  decrease in interest  rates would
result in an increase or decrease of approximately  $0.5 million,  respectively,
in the fair value of the  investment  portfolio.  Changes in interest  rates may
affect  the  fair  value  of the  investment  portfolio;  however,  we will  not
recognize such gains or losses into income unless the investments are sold.

The table below presents the carrying value for our  investment  portfolio.  The
carrying value approximates fair value at September 30, 2002.

Investment portfolio:
                                                Carrying value
                                               (in $ thousands)

Cash and cash equivalents........................   $ 32,405
Short-term investments...........................     54,063*
                                                  -----------
   Total.........................................   $ 86,468

* 68% in callable  and  non-callable  Federal  agencies,  23% invested in a bond
mutual fund and 9% in corporate bonds.


Item 4. Controls and Procedures

Within the 90 days prior to the date of this report,  our management,  including
our Chief  Executive  Officer and Chief  Financial  Officer,  have  conducted an
evaluation  of the  effectiveness  of our  disclosure  controls  and  procedures
pursuant  to  Exchange  Act Rule  13a-14.  Based on that  evaluation,  our Chief
Executive  Officer and Chief  Financial  Officer  concluded  that our disclosure
controls  and  procedures  are  effective  in  ensuring  timely  collection  and
evaluation of all information  potentially subject to disclosure in our periodic
filings  with  the  Securities  and  Exchange  Commission.  There  have  been no
significant  changes  in our  internal  controls  or in the  factors  that could
significantly  affect our internal  controls,  subsequent  to the date our Chief
Executive Officer and Chief Financial Officer completed their evaluation.

                                       28





                           PART II. OTHER INFORMATION

Item 1.           Legal Proceedings.                                 None.

Item 2.           Changes in Securities and Uses of Proceeds.

In  August  2002,  we  issued  11,367,617  shares  of our  common  stock  to the
shareholders of GBL in exchange for all of the outstanding  shares of GBL. These
shares  were  issued  in  reliance  upon the  exemption  from  the  registration
requirements of the Securities Act 1933 available  pursuant to Section  3(a)(10)
of the  Securities  Act of 1933.  The shares were issued  after a court  hearing
conducted by the Superior Court of Justice (Ontario),  to determine the fairness
of the terms and conditions of the transaction.

On  September  11,  2002,  our board of  directors  authorized a dividend of one
preferred  share  purchase  right (a "Right") for each share of our common stock
outstanding  at the close of  business on  September  23,  2002.  As long as the
Rights are  attached to the common  stock,  we will issue one Right  (subject to
adjustment) with each new share of our common stock so that all shares will have
attached Rights. When exercisable, each Right will entitle the registered holder
to  purchase  from  us one  one-hundredth  of a share  of our  Series  B  Junior
Participating  Preferred Stock (the "Preferred Shares") at a price of $35.00 per
one-hundredth of a Preferred Share,  subject to adjustment.  The description and
terms of the Rights are set forth in a Rights  Agreement,  dated as of September
11, 2002, as the same may be amended from time to time,  between the Company and
Mellon Investor Services LLC, a New Jersey limited liability company,  as Rights
Agent.  The Rights are subject to  redemption  by us, at our option on the terms
and conditions described in the Rights Agreement.

Item 3.           Defaults upon Senior Securities.                   None.

Item 4.           Submission of Matters to a Vote of Security Holders.

The annual meeting of our stockholders was held on August 13, 2002, at which the
following actions were taken:

(a)                   The  following directors  were elected to  serve until the
                      next  Annual  meeting  and  until  their  successors   are
                      elected:


                                                                           

                      Director Elected                     Vote For              Withheld

                      Fredric D. Price                     32,844,339            5,124,904
                      Franz L. Cristiani                   37,873,502               95,741
                      Phyllis I. Gardner, M.D.             37,876,973               92,270
                      Erich Sager                          37,864,931              104,312
                      Vijay B. Samant                      37,913,892               55,351
                      Gwynn R. Williams                    37,864,913              104,330



(b)                   The transaction for us to acquire all of the capital stock
                      of GBL and the issuance of the shares of our  common stock
                      in  connection  with such  transaction, was  approved by a
                      vote of 32,445,214 shares in favor; 35,801 shares against;
                      and 5,488,227 shares withheld.


Item 5.           Other Information.                                 None.

Item 6.           Exhibits and Reports on Form 8-K.

                                       29




(a)       The following documents are filed as part of this report

- -------------- -----------------------------------------------------------------
EXHIBIT                             DESCRIPTION OF DOCUMENT
NUMBER
- -------------- -----------------------------------------------------------------
3.1            Amended and  Restated  Certificate of  Incorporation of  BioMarin
               Pharmaceutical Inc., as amended and supplemented.
- -------------- -----------------------------------------------------------------
4.1            Rights  Agreement,  dated  as  of  September  11, 2002,   between
               BioMarin Pharmaceutical Inc. and Mellon Investor Services LLC, as
               Rights Agent,  previously filed with the  Commission on September
               13, 2002 as  Exhibit  4.1 to  the  Company's  Form 8-A,  which is
               incorporated herein by reference.
- -------------- -----------------------------------------------------------------
10.1**         Exclusive    Patent   License    Agreement    between    BioMarin
               Pharmaceutical   Inc.  and   the   Massachusetts   Institute   of
               Technology, effective as of September 5, 2002.
- -------------- -----------------------------------------------------------------
10.2           Amendment  No.1  to  Common   Stock  Purchase  Agreement  between
               BioMarin Pharmaceutical Inc. and Acqua Wellington North  American
               Equities Fund, Ltd dated September 24, 2002.
- -------------- -----------------------------------------------------------------
99.1           Certification of CEO and  CFO pursuant to 18 U.S.C  Section 1350,
               as adopted  pursuant to Section 906 of the  Sarbanes-Oxley Act of
               2002.
- -------------- -----------------------------------------------------------------

**  Portions  of this  document  have been  redacted  pursuant  to a Request for
Confidential Treatment filed pursuant to the Freedom of Information Act


                  (b) Reports on Form 8-K.


On  July  9,  2002,  we  filed a  Current  Report  on  Form  8-K  regarding  the
announcement that we created a scientific advisory board.

On July  15,  2002,  we  filed  a  Current  Report  on Form  8-K  regarding  the
announcement  that we  appointed  a new Chief  Financial  Officer  and three new
members of our board of directors.

On July  29,  2002,  we  filed  a  Current  Report  on Form  8-K  regarding  the
announcement  that  Genzyme  and we  filed  the  final  portion  of a  "rolling"
Biologics License Application (BLA) with the U.S. Food and Drug Administration.

On  August  1,  2002,  we  filed a  Current  Report  on Form 8-K  regarding  the
announcement  that the U.S.  Patent and  Trademark  Office issued to us the U.S.
Patent   No.    6,426,208    covering    Aldurazyme   for   the   treatment   of
Mucopolysaccharidosis I (or MPS I).

On  August  2,  2002,  we  filed a  Current  Report  on Form 8-K  regarding  the
announcement of our financial results for the quarter ended June 30, 2002.

On  August  26,  2002,  we  filed a  Current  Report  on  Form  8-K,  which  was
subsequently  amended and restated on October 18, 2002,  announcing  that we had
completed our acquisition of all of the outstanding  shares of GBL.

On  September  13, 2002,  we filed a Current  Report on Form 8-K  regarding  the
adoption of a stockholder  rights plan.  The plan was adopted to better  protect
our  stockholders  and assure they receive full value of their investment in the
event of any proposed takeover of our company.

On  September  17, 2002,  we filed a Current  Report on Form 8-K  regarding  the
announcement that the U.S. Food and Drug  Administration has accepted for review
the BLA filing for Aldurazyme,  and has granted the application priority  review
status.

On  September  30, 2002,  we filed a Current  Report on Form 8-K  regarding  the
announcement that we plan to  commence  the first of two phase 3 clinical trials
of Neutralase in the fourth quarter.

                                       30




                                    SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  caused  this  Report to be signed on its behalf by the  undersigned,
thereunto duly authorized.




                                         BIOMARIN PHARMACEUTICAL INC.


Dated:  November 12, 2002                By:  /s/ Fredric D. Price
                                              --------------------
                                         Fredric D. Price, Chairman and Chief
                                         Executive Officer (on behalf of the
                                         Registrant)

Dated:  November 12, 2002                By:  /s/ Louis Drapeau
                                              -----------------
                                         Louis Drapeau, Chief Financial Officer,
                                         Vice President, Finance and Secretary




                                       31





                           CERTIFICATIONS PURSUANT TO
                                 SECTION 302 OF
                         THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION

I, Fredric D. Price, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BioMarin Pharmaceutical
Inc.;

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not  misleading  with respect to the period covered by this quarterly
report;

3.  Based  on my  knowledge,  the  financial  statements,  and  other  financial
information  included in this quarterly  report,  fairly present in all material
respects the financial  condition,  results of operations  and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4.  The  registrant's  other  certifying  officer  and  I  are  responsible  for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

     a) designed such disclosure controls and procedures to ensure that material
     information   relating  to  the  registrant,   including  its  consolidated
     subsidiaries,  is  made  known  to  us by  others  within  those  entities,
     particularly  during  the period in which  this  quarterly  report is being
     prepared;

     b) evaluated the effectiveness of the registrant's  disclosure controls and
     procedures  as of a date  within 90 days prior to the  filing  date of this
     quarterly report (the "Evaluation Date"); and

     c)  presented  in  this  quarterly   report  our   conclusions   about  the
     effectiveness  of the  disclosure  controls  and  procedures  based  on our
     evaluation as of the Evaluation Date;

5. The registrant's other certifying officer and I have disclosed, based  on our
most recent evaluation,  to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent function):

     a) all  significant  deficiencies  in the design or  operation  of internal
     controls which could adversely affect the  registrant's  ability to record,
     process,  summarize and report  financial data and have  identified for the
     registrant's auditors any material weaknesses in internal controls; and

     b) any fraud,  whether or not material,  that involves  management or other
     employees  who  have  a  significant  role  in  the  registrant's  internal
     controls; and

6. The  registrant's  other  certifying  officer  and I have  indicated in  this
quarterly  report  whether or not there  were  significant  changes in  internal
controls or in other factors that could  significantly  affect internal controls
subsequent to the date of our most recent  evaluation,  including any corrective
actions with regard to significant deficiencies and material weaknesses.

Date: November 12, 2002

/s/ Fredric D. Price
Fredric D. Price
Chairman and Chief Executive Officer


                                       32



CERTIFICATION

I, Louis Drapeau, certify that:

1. I have reviewed this quarterly report on Form 10-Q of BioMarin Pharmaceutical
Inc.;

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
statement of a material fact or omit to state a material fact  necessary to make
the statements made, in light of the  circumstances  under which such statements
were made, not  misleading  with respect to the period covered by this quarterly
report;

3.  Based  on my  knowledge,  the  financial  statements,  and  other  financial
information  included in this quarterly  report,  fairly present in all material
respects the financial  condition,  results of operations  and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4.  The  registrant's  other  certifying  officer  and  I  are  responsible  for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

     a) designed such disclosure controls and procedures to ensure that material
     information   relating  to  the  registrant,   including  its  consolidated
     subsidiaries,  is  made  known  to  us by  others  within  those  entities,
     particularly  during  the period in which  this  quarterly  report is being
     prepared;

     b) evaluated the effectiveness of the registrant's  disclosure controls and
     procedures  as of a date  within 90 days prior to the  filing  date of this
     quarterly report (the "Evaluation Date"); and

     c)  presented  in  this  quarterly   report  our   conclusions   about  the
     effectiveness  of the  disclosure  controls  and  procedures  based  on our
     evaluation as of the Evaluation Date;

5. The registrant's other certifying officer and I have disclosed, based  on our
most recent evaluation,  to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent function):

     a) all  significant  deficiencies  in the design or  operation  of internal
     controls which could adversely affect the  registrant's  ability to record,
     process,  summarize and report  financial data and have  identified for the
     registrant's auditors any material weaknesses in internal controls; and

     b) any fraud,  whether or not material,  that involves  management or other
     employees  who  have  a  significant  role  in  the  registrant's  internal
     controls; and

6. The  registrant's  other  certifying  officer  and I have  indicated in  this
quarterly  report  whether or not there  were  significant  changes in  internal
controls or in other factors that could  significantly  affect internal controls
subsequent to the date of our most recent  evaluation,  including any corrective
actions with regard to significant deficiencies and material weaknesses.

Date: November 12, 2002

/s/ Louis Drapeau
Louis Drapeau
Chief Financial Officer, Vice President, Finance and Secretary



                                       33



                                  Exhibit Index


- -------------- -----------------------------------------------------------------
EXHIBIT                            DESCRIPTION OF DOCUMENT
NUMBER
- -------------- -----------------------------------------------------------------
3.1            Amended and  Restated  Certificate of  Incorporation  of BioMarin
               Pharmaceutical Inc., as amended and supplemented.
- -------------- -----------------------------------------------------------------
4.1            Rights  Agreement,  dated  as  of   September  11, 2002,  between
               BioMarin Pharmaceutical Inc. and Mellon Investor Services LLC, as
               Rights Agent,  previously filed with the Commission on  September
               13, 2002 as  Exhibit 4.1 to  the  Company's  Form 8-A,  which  is
               incorporated herein by reference.
- -------------- -----------------------------------------------------------------
10.1**         Exclusive   Patent    License    Agreement    between    BioMarin
               Pharmaceutical   Inc.  and   the   Massachusetts   Institute   of
               Technology, effective as of September 5, 2002.
- -------------- -----------------------------------------------------------------
10.2           Amendment  No.1  to  Common  Stock  Purchase  Agreement   between
               BioMarin Pharmaceutical Inc. and  Acqua Wellington North American
               Equities Fund, Ltd dated September 24, 2002.
- -------------- -----------------------------------------------------------------
99.1           Certification of  CEO and CFO  pursuant to 18 U.S.C Section 1350,
               as adopted pursuant to Section 906 of  the Sarbanes-Oxley  Act of
               2002.
- -------------- -----------------------------------------------------------------

**  Portions  of this  document  have been  redacted  pursuant  to a Request for
Confidential Treatment filed pursuant to the Freedom of Information Act


                                       34