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 March 31, 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: 53,835,325 shares common stock,
par value $0.001, outstanding as of May 3, 2002.






                          BIOMARIN PHARMACEUTICAL INC.

                                TABLE OF CONTENTS

                                                                           Page

PART I.  FINANCIAL INFORMATION

         Item 1.  Financial Statements (Unaudited).


           Consolidated Balance Sheets.......................................2
           Consolidated Statements of Operations for the three-month
              periods ended March 31, 2001 and 2002 and for the period
              from March 21, 1997 (inception) through March 31, 2002.........3
           Consolidated Statements of Cash Flows.............................5
           Notes to Consolidated Financial Statements........................6

         Item 2.  Management's Discussion and Analysis.......................9

         Item 3.  Quantitative and Qualitative Disclosure
                     about Market Risk.......................................25



PART II. OTHER INFORMATION

         Item 1.  Legal Proceedings..........................................26

         Item 2.  Changes in Securities and Uses of Proceeds.................26

         Item 3.  Defaults upon Senior Securities............................26

         Item 4.  Submission of Matters to a Vote of Security Holders........26

         Item 5.  Other Information..........................................26

         Item 6.  Exhibits and Reports on Form 8-K...........................26

SIGNATURE....................................................................28
















Item 1.  Financial Statements


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

                        Consolidated Balance Sheets as of
              (In thousands, except for shares and per share data)

                                                                                      

                                                                     December 31,                 March 31,
                                                                         2001                        2002
                                                                 ----------------------     -----------------------
                                                                 ----------------------     -----------------------
Assets                                                                                           (unaudited)
Current assets:
   Cash and cash equivalents                                      $              12,528      $              18,202
   Short-term investments                                                       118,569                     96,596
   Due from BioMarin/Genzyme LLC                                                  3,096                      5,888
   Current assets of discontinued ops. of Glyko, Inc.                               668                        852
   Other current assets                                                           1,922                      1,888
                                                                 ----------------------     -----------------------
                                                                 ----------------------     -----------------------
    Total current assets                                                        136,783                    123,426

Property, plant and equipment, net                                               32,560                     33,059
Other non-current assets                                                          2,468                        821
                                                                 ----------------------     -----------------------
     Total assets                                                $              171,811     $              157,306
                                                                 ======================     =======================

Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable                                              $               4,284      $                3,188
   Accrued liabilities                                                           2,198                       4,375
   Current liabilities of discontinued ops. of Glyko, Inc.                         229                         154
   Current portion of capital lease obligations                                     66                         193
   Short-term portion of notes payable                                           1,525                       1,525
                                                                 ----------------------     -----------------------
     Total current liabilities                                                   8,302                       9,435

   Long-term portion of notes payable                                            3,864                       3,421
   Long-term portion of capital lease obligations                                   97                          82
                                                                 ----------------------     -----------------------
     Total liabilities                                                          12,263                      12,938
                                                                 ---------------------      -----------------------

Stockholders' equity:
   Common stock, $0.001 par value:  75,000,000
     shares authorized 52,402,535 and 53,357,642
     shares issued and outstanding December 31,
     2001 and March 31, 2002, respectively                                          52                          53
   Additional paid in capital                                                  305,230                     316,469
   Common stock warrants                                                         5,134                       5,219
   Deferred compensation                                                         (699)                       (490)
   Notes from stockholders                                                     (2,037)                     (2,087)
   Foreign currency translation adjustment                                        (13)                        (74)
   Deficit accumulated during development stage                              (148,119)                   (174,722)

                                                                 ---------------------      -----------------------
     Total stockholders' equity                                                159,548                     144,368
                                                                 ---------------------      -----------------------
     Total liabilities and stockholders' equity                  $             171,811      $              157,306
                                                                 =====================      =======================


             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-Month Periods Ended March 31, 2001 and 2002
                (In thousands, except per share data, unaudited)


                                                                                      

                                                                            Three Months Ended March 31,
                                                                  -------------------------------------------------
                                                                           2001                      2002
                                                                  -----------------------   -----------------------
Revenues:
      Revenues from BioMarin/Genzyme LLC                               $         2,690               $      3,792
                                                                  -----------------------   -----------------------
                                                                  -----------------------   -----------------------
           Total revenues                                                        2,690                      3,792
                                                                  -----------------------   -----------------------

Operating Costs and Expenses:
      Research and development                                                   9,657                     13,218
      General and administrative                                                 1,474                      3,926
      In-process research and development                                            -                     11,223
                                                                  -----------------------   -----------------------
           Total operating costs and expenses                                   11,131                     28,367
                                                                  -----------------------   -----------------------


Loss from operations                                                           (8,441)                   (24,575)


Interest income                                                                    468                        380
Interest expense                                                                   (2)                       (91)
Loss from BioMarin/Genzyme LLC                                                 (1,108)                    (2,298)
                                                                  -----------------------   -----------------------

Net loss from continuing operations                                            (9,083)                   (26,584)
Income (loss) from discontinued operations                                       (617)                        122
Loss from disposal of discontinued operations                                       -                       (141)
                                                                  -----------------------   -----------------------
                                                                  -----------------------   -----------------------
        Net loss                                                  $            (9,700)                   (26,603)
                                                                  =======================   =======================
                                                                  =======================   =======================

Net loss per share, basic and diluted:
      Net loss from continuing operations                         $             (0.24)                     (0.51)
      Loss from discontinued operations                                         (0.02)                     (0.00)
                                                                  -----------------------   -----------------------
                                                                  -----------------------   -----------------------
      Net loss                                                    $             (0.26)                     (0.51)
                                                                  =======================   =======================
                                                                  =======================   =======================


Weighted average common shares outstanding                                      37,052                     52,535
                                                                  =======================   =======================
                                                                  =======================   =======================



       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 Period from March 21, 1997 (Inception) to March 31, 2002
            (In thousands, except per share data, unaudited)



                                                             
                                                                     Period from March 21,
                                                                      1997 (Inception) to
                                                                         March 31, 2002
                                                                ---------------------------------
                                                                ---------------------------------
Revenues:
     Revenues from BioMarin/Genzyme LLC                                     $            30,990
     Revenues - other                                                                       369
                                                                ---------------------------------
                                                                ---------------------------------
          Total revenues                                                                 31,359
                                                                ---------------------------------

Operating Costs and Expenses:
     Research and development                                                           131,501
     General and administrative                                                          25,970
     In-process research and development                                                 22,870
     Facility closure                                                                     4,423
                                                                ---------------------------------
          Total operating costs and expenses                                            184,764
                                                                ---------------------------------

Loss from operations                                                                   (153,405)

Interest income                                                                            7,812
Interest expense                                                                           (847)
Loss from BioMarin/Genzyme LLC                                                          (14,263)
                                                                ---------------------------------

Net loss from continuing operations                                                    (160,703)
Loss from discontinued operations                                                        (5,966)
Loss from disposal of discontinued operations                                            (8,053)
                                                                ---------------------------------
                                                                ---------------------------------
      Net loss                                                              $          (174,722)
                                                                =================================
                                                                =================================

Net loss per share, basic and diluted:
     Net loss from continuing operations                                    $             (5.44)
     Loss from discontinued operations                                                    (0.20)
     Loss on disposal of discontinued operations                                          (0.27)
                                                                ---------------------------------
                                                                ---------------------------------
     Net loss                                                               $             (5.91)
                                                                =================================

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

Weighted average common shares outstanding                                                29,539
                                                                =================================


             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 Three-Month Periods Ended March 31, 2001 and 2002, and for
           the Period from March 21, 1997 (Inception) to March 31, 2002

                            (In thousands, unaudited)

                                                                                                  

                                                                                                       March 21, 1997
                                                                                                       (inception) to
                                                                        March 31,                       March 31,
                                                                  2001               2002                 2002
                                                          --------------------  -------------------  ---------------------
Cash flows from operating activities:
 Net loss from continuing operations                             $   (9,083)      $     (26,584)         $     (160,703)
 Adjustments to reconcile net loss to net cash used in
 operating activities:
  In-process research and development                                     -               10,286                  21,933
  Facility closure                                                        -                   -                    3,791
  Depreciation                                                         1,162               1,852                  16,759
  Amortization of deferred compensation                                  209                 209                   3,970
  Loss from BioMarin/Genzyme LLC                                       3,799               6,160                  44,324
  Other non-cash compensation                                             -                  206                     206
 Changes in operating assets and liabilities:
  Due from BioMarin/Genzyme LLC                                      (1,587)             (2,815)                 (5,911)
  Other current assets                                                  (92)               2,078                     812
  Note receivable from officer                                            -                (300)                 (1,189)
  Deposits                                                             (150)                  -                    (434)
  Accounts payable                                                   (3,122)             (1,323)                   3,060
  Accrued liabilities                                                  (165)               2,177                   4,696
                                                          ------------------------------------------------------------------
  Net cash used in continuing operations                             (9,029)             (8,054)                (68,686)
  Net cash provided by (used in) discontinued operations               (125)               (279)                     470
                                                          ------------------------------------------------------------------
    Net cash used in operating activities                            (9,154)             (8,333)                (68,216)
                                                          ------------------------------------------------------------------

Cash flows from investing activities:
 Purchase of property and equipment                                    (430)             (2,245)                (53,296)
 Purchase of Synapse                                                      -              (1,028)                 (1,028)
 Investment in BioMarin/Genzyme LLC                                  (2,100)             (4,504)               (123,073)
 Purchase of IBEX therapeutic assets                                      -                  -                  (39,309)
 Purchase (sale) of short-term investments                            13,627              21,973                  18,941
                                                          ------------------------------------------------------------------
  Net cash used in continuing operations                              11,097              14,196               (197,765)
  Net cash used in discontinued operations                                -                  -                   (1,663)
                                                          ------------------------------------------------------------------
Net cash provided by (used in) investing activities                   11,097              14,196               (199,428)
                                                          ------------------------------------------------------------------

Cash flow from financing activities:
 Net proceeds from sale of common stock, net                             848                 -                   232,823
 Proceeds from issuance of convertible notes                              -                  -                    25,615
 Net proceeds from Acqua Wellington agreement                             -                  -                    13,163
 Proceeds from exercise of common
  stock options and warrants                                             408                 375                   8,070
 Net proceeds from notes payable                                          -                  -                     5,639
 Repayment of notes payable                                              (7)               (443)                   (693)
 Repayment of capital lease obligations                                   -                 (15)                    (58)
 Receipts from notes receivable from stockholders                         -                 (45)                     759
 Issuance of common stock for ESPP, and other                             -                  -                       602
                                                          ------------------------------------------------------------------
   Net cash provided by (used in) financing activities
                                                                       1,249               (128)                 285,920
                                                          ------------------------------------------------------------------
Effect of foreign currency translation on cash                            -                 (61)                    (74)
                                                          ------------------------------------------------------------------
   Net increase in cash                                                3,192               5,674                  18,202

Cash and cash equivalents:
 Beginning of period                                                  16,530              12,528                      -
                                                          ------------------------------------------------------------------
 End of period                                                   $    19,722      $       18,202         $        18,202
                                                          ==================================================================



      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  for   debilitating
life-threatening  chronic  genetic  diseases and other diseases and  conditions.
Since  inception,  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  on October 25, 1996 in the state of Delaware  and
first began business on March 21, 1997 (inception) as a wholly-owned  subsidiary
of Glyko  Biomedical Ltd. (GBL).  Subsequently,  the Company has issued stock to
outside  investors in a series of transactions,  resulting in GBL's ownership of
the  Company's  outstanding  common stock being reduced to 21.3 percent at March
31, 2002.

In February  2002,  the  Company  decided to close the  carbohydrate  analytical
business portion of Glyko, Inc., a wholly-owned  subsidiary,  which provided all
of Glyko,  Inc.'s  revenues.  Accordingly,  the Company  recorded a Glyko,  Inc.
closure  expense  of  $7.9  million  in  the  2001  consolidated  statements  of
operations. This charge consisted primarily of an impairment reserve against the
unamortized  balance of  goodwill  and other  intangible  assets  related to the
acquisition of Glyko, Inc. The majority of the Glyko,  Inc.  employees have been
incorporated  into the  BioMarin  business  to provide  necessary  analytic  and
diagnostic support to the Company's therapeutic products.

The net  loss of  Glyko,  Inc.'s  operations  is  included  in the  accompanying
consolidated  statements  of  operations  as  income  (loss)  from  discontinued
operations.  Glyko,  Inc.'s gross revenues for the quarters ended March 31, 2002
and 2001 and for the period from March 21, 1997  (inception)  through  March 31,
2002 were $0.8 million, $0.7 million and $8.2 million, respectively.

On March 21, 2002, the Company purchased all of the outstanding capital 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 $6 million payable in either cash or common stock at the
Company's discretion.  The Company issued 885,240 shares of common stock for the
purchase.  The acquisition was recorded using the purchase method of accounting.
The transaction did not meet the criteria of a business  combination as outlined
in EITF 98-3 "Determining Whether a Nonmonetary  Transaction Involves Receipt of
Productive Assets or of a Business" as, upon  acquisition,  Synapse did not have
any significant  business outputs.  Accordingly,  all of the purchase price plus
related  expenses  totaling $11.2 million was attributed to in-process  research
and development and was expensed in the accompanying  consolidated statements of
operations.

Through  March  31,  2002,  the  Company  had  accumulated   losses  during  its
development  stage of  approximately  $174.7  million.  Based on current  plans,
management  expects  to  incur  further  losses  for  the  foreseeable   future.
Management  believes that the Company's cash and cash equivalents and short-term
investment  balances at March 31, 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  generally  accepted  accounting   principles  for  interim
financial  information  on  substantially  the same basis as the annual  audited
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.
                                       6


Operating  results  for the  three-month  periods  ended  March 31, 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 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.

Cash and Cash Equivalents

For the  consolidated  statements  of cash  flows,  the  Company  treats  liquid
investments with original maturities of less than three months when purchased as
cash and cash equivalents.

Short-term Investments

The Company records its investments as  held-to-maturity.  These investments are
recorded at amortized  cost at March 31, 2002.  These  securities  are comprised
mainly of bond  mutual  funds,  corporate  bonds,  Federal  agency  investments,
commercial paper and bank certificates of deposit.

Investment in BioMarin/Genzyme LLC and Related Revenue

Under the terms of the Company's  joint  venture  agreement  with  Genzyme,  the
Company  and  Genzyme  have each agreed to provide 50 percent of the funding for
the  joint  venture.   All  research  and  development,   sales  and  marketing,
administrative,  and other  activities  performed  by Genzyme and the Company 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.

The Company  accounts for its  investment  in the joint venture using the equity
method.  The Company  recognizes  50% of amounts  billed to the joint venture as
revenue in accordance with its policy to recognize revenue for these billings to
the extent that  payments  for the billings  were funded by Genzyme.  The 50% of
amounts billed to the joint venture that is funded by the Company is recorded as
an offset to the Company's equity in the loss of the joint venture.

Note Receivable from Officer

Pursuant to an employment  agreement with an officer of the Company, the Company
loaned  the  officer  $860,000  to  purchase  a local  property  and  received a
promissory  note secured by the  property.  The note matures on October 31, 2004
(subject to various  conditions in the employment  agreement) and bears interest
at the Federal mid-term rate.

In February  2002, the Company  loaned  another  officer  $300,000 to purchase a
residence  and received a promissory  note secured by the officers  unencumbered
shares  of the  Company  owned by the  officer.  The note is  full-recourse  and
matures on October 31, 2002 and bears interest at the Federal short-term rate.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Depreciation is computed using
the straight-line method.  Leasehold improvements are amortized over the life of
the asset or the term of the lease, whichever is shorter.  Significant additions
and improvements  are capitalized,  while repairs and maintenance are charged to
expense as incurred.
                                       7


Property, plant and equipment consisted of the following (in thousands):


                                                                            
                                         December 31,     March 31,                  Estimated
                                             2001            2002                   Useful Lives
                                        ---------------  -------------  -------------------------------------
                                        ---------------  -------------  -------------------------------------

Computer hardware and software          $       1,532    $     1,820                   3 years
Office furniture and equipment                  1,557          1,622                   5 years
Manufacturing/laboratory equipment             11,769         11,918                   5 years
Leasehold improvements                         30,886         32,735        Shorter of life of asset or lease term
Construction in progress                        1,064          1,064
                                        ---------------  -------------
                                        ---------------  -------------
                                               46,808         49,159
Less:  Accumulated depreciation              (14,248)       (16,100)
                                        ---------------  -------------
                                        ---------------  -------------
                Total, net              $      32,560    $    33,059
                                        ===============  =============



Stockholders' Equity

The notes from stockholders  included in stockholders' equity are currently due.
The notes are  anticipated  to be paid prior to June 30, 2002.  The Company does
not believe there will be any problems collecting on the notes.

Research and Development

Research and development  expenses include the expenses associated with contract
research and  development  provided by third parties,  research and  development
performed in connection with the  BioMarin/Genzyme  LLC joint venture (including
clinical  manufacturing,   clinical  operations,   regulatory  activities),  and
internal  research and  development  activities.  All  research and  development
expenses are expensed as incurred.

Net Income (Loss) per Share

Basic net income (loss) per share is calculated by dividing net income (loss) by
the weighted average common shares outstanding during the period.

                                       8




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 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 MPS I, MPS VI and
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.   We  focus  on  conditions  with   well-defined   patient
populations, including genetic diseases, which require chronic therapy.

Our lead product candidate, Aldurazyme(TM), is being developed for the treatment
of  Mucopolysaccharidosis  I  (MPS  I)  disease.  MPS  I is a  debilitating  and
life-threatening    genetic    disease    caused    by   the    deficiency    of
(alpha)-L-iduronidase,   an  enzyme   responsible   for  breaking  down  certain
carbohydrates.  MPS I is a progressive disease that afflicts patients from birth
and frequently leads to severe  disability and early death.  There are currently
no drugs on the market for the treatment of MPS I.  Aldurazyme has received both
fast track designation from the United States Food and Drug Administration (FDA)
and orphan drug  designation for the treatment of MPS I in the United States and
in the European Union. We are developing Aldurazyme through a joint venture with
Genzyme   Corporation.   In   collaboration   with   Genzyme,   we  completed  a
double-blinded,  placebo-controlled  Phase 3  clinical  trial of  Aldurazyme  in
August 2001. On November 2, 2001, we announced positive results from this trial.
On April 1, 2002, we announced  that  together  with our joint venture  partner,
Genzyme,  we have filed with  European  regulatory  authorities  for approval to
market  Aldurazyme.  On April 15, 2002,  Genzyme and we announced that the joint
venture filed the first portion of a "rolling"'  Biologics  License  Application
(BLA) with the FDA for  approval  to market  Aldurazyme  in the  United  States.
Genzyme and we anticipate a response from the FDA regarding the  application  to
market Aldurazyme in the United States during the first half of 2003.

We are developing our second product candidate,  Neutralase(TM), for reversal of
anticoagulation by heparin in patients  undergoing Coronary Artery Bypass Graft,
or CABG,  surgery and angioplasty.  We acquired rights to Neutralase through our
acquisition of the pharmaceutical assets of IBEX Technologies Inc. in the fourth
quarter  of 2001.  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 and aiding  patient  recovery  following  CABG surgery and
angioplasty.  Based on data from previous trials,  we plan to initiate a Phase 3
trial in CABG surgery in the third quarter of 2002.

In addition to Aldurazyme and Neutralase,  we are developing other  enzyme-based
therapeutics for the treatment of a variety of diseases and conditions. 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  VibrilaseTM,  a topical enzyme product for use in
removing  burned skin tissue in preparation  for skin grafting or other therapy.
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 pursuing preclinical  development of
other enzyme product candidates for genetic and other diseases.

                                       9


Recent Developments

On April 22, 2002, we announced  that we had begun dosing  patients in a Phase 2
clinical trial of Aryplase for the treatment of MPS VI. The primary objective of
this open-label,  multi-national  Phase 2 clinical trial will be to evaluate the
efficacy,  safety and  pharmacokinetics  of weekly intravenous  infusions of 1.0
mg/kg of Aryplase in 10 MPS VI patients.  This dose  represents the higher level
of two doses administered in the six-patient Phase 1 trial.

On April 15, 2002,  Genzyme and we announced  that the joint  venture  filed the
first portion of a "rolling"  Biologics  License  Application (BLA) with the FDA
for approval to market  Aldurazyme in the United States. We plan to complete the
BLA filing in the third quarter of this year. The BLA will include six months of
data from the  ongoing  open-label  Phase 3  extension  study in addition to the
six-month  data  from  the  placebo-controlled  portion  of the  Phase 3  trial.
Patients  from  both the  treatment  and  placebo  arms of the Phase 3 trial had
received at least six months of weekly  Aldurazyme  infusions in the  open-label
extension  study as of February 8, 2002.  Genzyme and we  anticipate  a response
from the FDA regarding the application to market Aldurazyme in the United States
during the first half of 2003.

On April 1, 2002, we announced  that  together  with our joint venture  partner,
Genzyme,  we have filed with  European  regulatory  authorities  for approval to
market  Aldurazyme.  Our  joint  venture  submitted  a  Marketing  Authorization
Application  (MAA)  to  the  European  Medicines   Evaluation  Agency  (European
Union)(or  EMEA) on March 1, 2002.  The EMEA has accepted our MAA and  validated
that it is complete and ready for  scientific  review.  Accordingly,  the EMEA's
Committee  for  Proprietary  Medicinal  Products  (CPMP) will now  evaluate  the
application to determine whether to approve  Aldurazyme for the treatment of MPS
I in all 15  member  states of the  European  Union.  Norway  and  Iceland  also
participate in the CPMP but have a separate approval process.

On March 21, 2002, we acquired Synapse Technologies Inc. Synapse owns the rights
to certain patented and proprietary  technology  which,  based on the results of
preclinical  trials, has the potential to deliver  therapeutic enzymes and other
drugs  across  the  blood-brain  barrier  by  means of  traditional  intravenous
injections.  Under  the  terms  of  the  agreement,  we  purchased  100%  of the
outstanding shares of Synapse for approximately $10.2 million payable in 885,240
shares of our common stock. We also may make future contingent payments of up to
CDN. $8 million  (which  equaled  approximately  U.S.  $5.0 million as of May 1,
2002). These payments are payable in either cash or stock, at our option.

On February 25, 2002, we decided to close the analytics product catalog business
of our  wholly-owned  subsidiary,  Glyko,  Inc. The majority of the Glyko,  Inc.
employees have been  incorporated  into our  pharmaceutical  business to provide
necessary analytic and diagnostic support to our therapeutic  products.  Certain
operating assets of Glyko, Inc. may be offered for sale.

On February 7, 2002, we announced that we had reached a definitive  agreement to
acquire all of the outstanding capital stock of Glyko Biomedical Ltd. (GBL). GBL
is not affiliated with Glyko,  Inc. GBL's principal asset is its 21.3% ownership
interest in our common stock.  GBL owns  11,367,617  shares of our common stock.
Under the terms of the acquisition  agreement,  GBL's common  shareholders  will
receive  11,367,617  shares of our  common  stock in  exchange  for all of GBL's
outstanding common stock. There will be no net effect on the number of shares of
our common stock  outstanding,  as we plan to retire the existing  shares of our
common stock currently held by GBL upon closing.

Results of Operations

In  February  2002,  we decided to close the  carbohydrate  analytical  business
portion of our wholly  owned  subsidiary,  Glyko,  Inc.,  which  provided all of
Glyko,  Inc.'s revenues.  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.
                                       10


The Quarters Ended March 31, 2002 and 2001

For the quarters  ended March 31, 2002 and 2001,  revenues were $3.8 million and
$2.7 million,  respectively,  which came exclusively from our joint venture with
Genzyme.  The increase in joint  venture  revenues in the first  quarter of 2002
compared  to the same  period in 2001 was  primarily  the  result  of  increased
manufacturing  activities  in  support  of our  Phase 1 and  Phase  3  extension
studies, increased regulatory, clinical and plant and process validation efforts
in preparation for the rolling BLA submission that commenced in April 2002.

Research  and  development  expenses  increased  to $13.2  million  in the first
quarter  of 2002 from  $9.7  million  in  comparable  period of 2001.  The major
factors in the growth of research and  development  expenses  include  increased
expenses   for  the   Aldurazyme   joint   venture  with   Genzyme,   especially
manufacturing,  regulatory  and clinical  requirements,  for  manufacturing  and
clinical  requirements  to  support  our  Phase 2  clinical  trial  and  Phase 1
extension study of Aryplase, for the clinical expenses associated with our Phase
1 clinical trial of Vibrilase and for the increased  manufacturing  and research
staff to support our product  programs,  including  the  addition of  scientific
staff in Montreal,  Canada in October 2001  supporting  Neutralase and Phenylase
and in Vancouver,  Canada in March 2002 supporting the technology purchased from
Synapse.  We anticipate  research and  development  expenditures  to continue to
increase in the future in order to further develop our drug product candidates.

General  and  administrative  expenses  increased  to $3.9  million in the first
quarter  of 2002 from  $1.5  million  in the  comparable  period  of 2001.  This
increase was  primarily  due to costs  incurred in the first quarter of 2002 for
legal and other fees associated  with the Synapse  acquisition and the potential
acquisition of all of the outstanding  capital stock of Glyko Biomedical Ltd. by
us (in exchange for our common stock),  increased staffing in finance,  business
development,  information  systems and purchasing,  and expenses  related to the
implementation of an improved financial reporting and budgeting software system.
Over the next year, we anticipate that general and  administrative  expenditures
will increase  approximately 30%, exclusive of the approximately $1.1 million of
extraordinary  costs associated with the acquisitions and the  implementation of
the financial reporting system. This increase will primarily be due to increased
headcount and facilities to support the growth of our Company.

In-process research and development totaling $11.2 million represents the entire
purchase  price of our  acquisition of all of the  outstanding  stock of Synapse
Technologies,  Inc. in March 2002 plus related  expenses.  On March 21, 2002, we
purchased  Synapse  including its intellectual  property and preclinical data on
p97, a  technology  that may allow drugs to cross the blood brain  barrier,  for
$10.2 million in our common stock at a deemed price of $11.50 per share (885,240
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  requires us to
make up to CDN. $8 million (which equaled  approximately U.S. $5.0 million as of
May 1, 2002) in  contingency  payments  upon certain  regulatory  and  licensing
milestones if they occur before March 21, 2012.

Interest  income  decreased by $88,000 to $380,000 in the first  quarter of 2002
from  $468,000 in the first  quarter of 2001  primarily  due to the  decrease in
interest  rates  available on short-term  investments,  offset in part by higher
cash balances resulting from our recent financing activities.

Interest  expense  for the first  quarter of 2002 was  $91,000 and $2,000 in the
comparable  period of 2001.  The increase was due to an equipment  loan executed
for $5.5 million in December 2001.

Our equity in the loss of our joint  venture  with  Genzyme was $2.3 million for
the first  quarter of 2002  compared to $1.1  million  for the first  quarter of
2001, as the joint venture  continued  extension studies of the original Phase 1
clinical  trial and the Phase 3 clinical trial of Aldurazyme and filed an MAA in
Europe.

Net loss from  continuing  operations was $26.6 million ($0.51 per share,  basic
and diluted) and $9.1 million ($0.24 per share, basic and diluted) for the first
quarter of 2002 and 2001, respectively.

Income (loss) from discontinued operations relating to the Glyko, Inc. analytics
business  was  $122,000  in the  first  quarter  of 2002 and  $(617,000)  in the
comparable  period of 2001.  The increase to income in the first quarter of 2002
was due to an increase in sales to customers in  anticipation of a possible sale
or discontinuance of the analytics business of Glyko, Inc.

                                       11


Loss from disposal of discontinued operations represents the Glyko, Inc. closure
expense of $141,000 in the first quarter of 2002 consisting primarily of accrued
severance  to  personnel  who did not become our  employees  and  marketing  and
investment  banking fees incurred in connection  with the potential  sale of the
analytics business of Glyko, Inc.

Net loss was $26.6 million ($0.51 per share, basic and diluted) and $9.7 million
($0.26 per share,  basic and diluted)  for the first  quarters of 2002 and 2001,
respectively.

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  $286  million.  We were
initially  funded by an  investment  from GBL. We have since  raised  additional
capital 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.

Our combined cash, cash  equivalents and short-term  investments  totaled $114.8
million at March 31, 2002 a decrease  of $16.3  million  from $131.1  million at
December 31, 2001.  The primary uses of cash during the quarter  ended March 31,
2002 were to finance  operations,  fund the joint  venture,  purchase  leasehold
improvements and equipment and expenses  associated with the purchase of Synapse
(primarily  legal fees). The primary sources of cash during the quarter were the
issuance of common  stock  pursuant to the exercise of stock  options  under the
1997 Stock Plan,  the aggregate  exercise  price of which totaled  approximately
$0.4 million.

As of March 31, 2002,  our total  research and  development  expense to date was
$131.5 million which was allocated $65.0 million to Aldurazyme,  $0.6 million to
Neutralase,  $14.9  million to Aryplase,  $6.6  million to  Vibrilase  and $44.4
million to other  projects.  In the first  quarter  of 2002,  our  research  and
development  expense of $13.2 million was allocated  $7.7 million to Aldurazyme,
$0.3 million to Neutralase,  $2.1 million to Aryplase, $0.3 million to Vibrilase
and $2.8 million to other  projects.  Due to the  uncertainty of the development
of,  and  the   complications   of   obtaining   regulatory   approval  for  the
commercialization of pharmaceutical  products,  it is impossible to estimate the
future costs associated with the completion of any of our product programs,  the
anticipated  completion  date,  or the date by which the project  will  generate
significant  revenue  from sales,  if at all.  Please see the  section  entitled
"Factors That May Affect Future  Results," and, in particular,  the  discussions
captioned "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"; "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"  and "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" in that
section.

From our inception through March 31, 2002, we have purchased approximately $53.3
million of leasehold  improvements and equipment.  We expect that our investment
in leasehold  improvements and equipment will increase  significantly during the
next two years  because we will provide  facilities  and  equipment for a larger
staff and increased manufacturing capacity.

We expect to fund our operations with our cash, cash  equivalents and short-term
investments.  We have made and plan to make  substantial  commitments to capital
projects,  including  developing  new research and  development  facilities  and
expanding our administrative and support offices.  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  increase  operational  expenses  and  manufacturing
investment  for the joint  venture  and to  increase  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 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.
                                       12


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 in the first half of 2003 regarding
         our recently filed "rolling" BLA for Aldurazyme.

o        In August 2001, we signed an amended 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 March 31, 2002, we may request a maximum additional aggregate
         investment of $14.2 million.  This agreement terminates on October 15,
         2002.  Under this agreement, Acqua Wellington may also purchase stock
         and receive similar terms of any other equity financing by us.

o        During December 2001, we entered into three separate agreements with
         General Electric Capital Corporation for secured loans totaling $5.5
         million. The notes bear interest (ranging from 9.1% to 9.31%) and are
         secured by certain manufacturing and laboratory equipment.
         Additionally, one of the agreements is subject to a covenant that
         requires us to maintain a minimum unrestricted cash balance of $25
         million. Should the unrestricted cash balance fall below $25 million,
         the note is subject to prepayment, including prepayment penalties
         ranging from 1% to 4%. We expect to enter into additional similar
         facilities as we acquire additional equipment and expand our
         facilities.


In  addition to the  foregoing  sources,  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, as defined by Statement of Financial Accounting Standards
No. 119.
                                       13


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
$43.9 million in funding to the joint venture from  inception  through March 31,
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.

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.

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.  For all  periods
presented,  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 income in the period such adjustment was
made.

                                       14




                     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 March 31,  2002,  we had an  accumulated  deficit of
approximately $174.7 million. We expect to continue to operate at a net loss for
the  foreseeable  future.  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 cannot be certain  that any  financing  will be  available  when
needed. If we fail to raise additional  financing as we need it, 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 March 31, 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.
                                       15


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  approvals  are  not  obtained  or  are  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 and 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 most 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.

In May 2001, we completed a 24-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.

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.

                                       16



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 shorter than,
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  facility and  process.  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.  We cannot guarantee that these facilities
will pass federal or international  regulatory  inspection.  We cannot guarantee
that we, or any potential third party manufacturer of our drug products, will be
able to comply with cGMP regulations.

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 our drug  products  is
limited, orphan drug designation is particularly important for our products that
are eligible  for orphan drug  designation.  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,  which 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,  we cannot  guarantee  that we will be the  first to  obtain  marketing
approval  for  any  orphan  indication  or,  if we do,  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.

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.
We cannot be certain that we will be able 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.

                                       17


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
cannot be certain that  third-party  payers will pay for the costs of our drugs.
Even if we are able to obtain  reimbursement from third-party  payers, we cannot
be certain  that  reimbursement  rates will be enough to allow us to profit from
sales of our drugs or to justify our product development expenses.

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. We will not know what the reimbursement rates will be until
we are ready to market the product and we actually negotiate rates. 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 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  adversely  affect
reimbursement for medical treatment by third party payers,  which may render our
products commercially  un-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.

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.
                                       18


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. There
are many patents in our field of technology,  and we cannot guarantee 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 will provide  useful  protection.
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.  We cannot guarantee that we will be able to
acquire  any  exclusive  rights to  technology  or products  derived  from these
collaborations.  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.

The United States Patent and Trademark  Office  recently issued two patents 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  recently issued two patents 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.
                                       19


The patent  holder has granted an  exclusive  license for  products  relating to
these  patents  to one of our  competitors.  If we are  unable  to  successfully
challenge  the  patents,  we may be unable to produce  Aldurazyme  in the United
States unless we can obtain a sublicense from the current licensee.  The current
licensee  is not  required  to  grant us a  license  and  even if a  license  is
available,  we may have to pay substantial  license fees, which could materially
reduce potential profits from the eventual sale of Aldurazyme.

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.

We cannot  guarantee  that  Genzyme  will  devote  the  resources  necessary  to
successfully  market  Aldurazyme.  In addition,  either party 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
Genzyme or we 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.

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 within
our cost parameters, we cannot guarantee that we will 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  measurements of performance if we
attempt to increase the scale or size or improve the commercial viability of our
manufacturing processes:
                                       20


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.  We cannot know with  certainty how long it might
take to make  improvements if it becomes  necessary to do so. 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 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.
Even if we can  establish  the  necessary  capacity,  we cannot be certain  that
manufacturing  costs will be  commercially  reasonable,  especially  if contract
manufacturing is employed or if third-party reimbursement is substantially lower
than expected.

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.
                                       21


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  increase  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.  If we are unable to effectively sell
our drug products, our ability to generate revenues will be diminished.

Under our joint venture with Genzyme,  Genzyme is responsible  for marketing and
distributing  Aldurazyme.  We cannot guarantee that we will be able to establish
sales and  distribution  capabilities  or that the  joint  venture,  any  future
collaborators or we will successfully sell any of our drug products.

With our  acquisition  of  Neutralase  from IBEX  Technologies  Inc., 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 create our
own sales and  marketing  force 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 MPSI or MPSIV,  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 our competitor
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.  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.

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 the
programs  acquired  from IBEX and Synapse,  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 licensing
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.
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 or 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.
                                       22


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.  We
cannot guarantee that our staff,  financial  resources,  systems,  procedures or
controls will be adequate to support our operations or that our management  will
be able 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.  We
compete  with  other  biotechnology  and  pharmaceutical  companies,  as well as
universities and other academic  institutions for qualified personnel.  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 Scientific Affairs or Christopher M. Starr,  Ph.D., our
Senior Vice President for Research and  Development,  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, we cannot
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.  We cannot be certain that we will continue
to attract and retain qualified  personnel  necessary for the development of our
business.

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 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 and Vibrilase,
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
and Vibrilase for which the joint  venture's or our insurance  coverages are not
adequate.

We cannot be certain  that if  Aldurazyme,  Aryplase or  Vibrilase  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  or
Vibrilase  will be available in meaningful  amounts or at a reasonable  cost. In
addition,  we cannot be certain  that we can  successfully  defend  any  product
liability  lawsuit  brought  against us. If we are the  subject of a  successful
product liability claim that exceeds the limits of any insurance coverage we may
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.
                                       23


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;

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.

If our officers,  directors and largest stockholder elect to act together,  they
may be able to  control  our  management  and  operations,  acting in their best
interests and not necessarily those of other stockholders.

Our directors and officers control  approximately 28% of the outstanding  shares
of our common  stock.  Glyko  Biomedical  Ltd. owns  approximately  21.3% of the
outstanding  shares of our capital  stock.  The  president  and chief  executive
officer of Glyko  Biomedical and a significant  shareholder of Glyko  Biomedical
serve as two of our directors.  As a result, due to their concentration of stock
ownership,  directors and officers, if they act together, may be able to control
our  management  and  operations,  and  may be able to  prevail  on all  matters
requiring a stockholder vote including:

o        The election of all directors;

o        The amendment of charter documents or the approval of a merger, sale of
         assets or other major corporate transactions; and

o        The defeat of any non-negotiated takeover attempt that might otherwise
         benefit the public stockholders.
                                       24


Anti-takeover  provisions in our charter  documents  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  1,000,000  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.

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 March 31,  2001,  we
believe  that a 100 basis point  increase  or  decrease in interest  rates would
result in an increase or decrease  or increase of  approximately  $1.1  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 unless the  investments  are sold.  Moreover,
such  gains  or  losses  have  historically  been  immaterial,  because  we have
generally  held the  majority of such  investments  to  maturity,  a practice we
currently intend to continue.

The table below presents the carrying value for our  investment  portfolio.  The
carrying value approximates fair value at March 31, 2002.

Investment portfolio:
                                                  Carrying value
                                                 (in $ thousands)

Cash and cash equivalents.........................  $ 18,202
Short-term investments............................    96,596*
                                                    -----------
   Total..........................................  $114,798

*33% invested in a bond mutual fund, 4% in corporate  bonds, 47% in callable and
non-callable Federal agencies, and 16% in money market funds.
                                       25






                           PART II. OTHER INFORMATION

Item 1.    Legal Proceedings.                                        None.

Item 2.    Changes in Securities and Uses of Proceeds.

BioMarin issued 885,240 shares of its Common Stock to the former shareholders of
Synapse  Technologies Inc. in order to acquire the outstanding shares of Synapse
Technologies. The shares were issued effective as of March 21, 2002, the closing
date of BioMarin's acquisition of Synapse Technologies. These shares were issued
without registration in reliance upon an exemption under Section 3(a)(10) of the
Securities  Act of 1933,  as  amended,  after a fairness  hearing by the Supreme
Court of British Columbia

Item 3.    Defaults upon Senior Securities.                          None.

Item 4.    Submission of Matters to a Vote of Security Holders.      None.

Item 5.    Other Information.                                        None.

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

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

- -------------- -----------------------------------------------------------------
EXHIBIT                                           DESCRIPTION OF DOCUMENT
NUMBER
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
2.1            Acquisition Agreement for a Plan of Arrangement by and among the
               Company, BioMarin Acquisition (Nova Scotia) Company, and Glyko
               Biomedical Ltd., dated February 6, 2002, previously filed with
               the Commission on April 1, 2002 as Exhibit 2.5 to the Company's
               Annual Report on Form 10-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
10.1           Second Amended and Restated Agreement for Plan of Arrangement by
               and among the Company, BioMarin Delivery Canada Inc. and Synapse
               Technologies Inc., dated February 4, 2002, previously filed with
               the Commission on April 1, 2002 as Exhibit 10.26 to the Company's
               Annual Report on Form 10-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
10.2           Amendment to BioMarin Pharmaceutical Inc. 1997 Stock Plan, as
               amended, as adopted March 20, 2002, previously filed with the
               Commission on March 21, 2002 as Exhibit 99.1 to the Company's
               Current Repot on Form 8-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------

                  (b) Reports on Form 8-K.

On  January  7,  2002,  we filed a  Current  Report  on Form 8-K  regarding  the
announcement of various changes to our senior  management and the appointment of
Dr. Phyllis Gardner, MD to our board of directors.

On November January 14, 2002, we filed an amended and restated Current Report on
Form 8-K/A  regarding the completion of our  acquisition of the rights to all of
the pharmaceutical  assets of IBEX Technologies Inc. This Current Report amended
and restated a Current Report on Form 8-K that  originally  filed on November 2,
2001, as subsequently amended and restated on November 14, 2001.

On  January  15,  2002,  we filed a  Current  Report on Form 8-K  regarding  the
announcement  that  we  reached  a  definitive   agreement  to  acquire  Synapse
Technologies Inc.

On  February  7,  2002,  we filed a  Current  Report on Form 8-K  regarding  the
announcement  that we  reached a  definitive  agreement  to  acquire  all of the
outstanding shares of Glyko Biomedical Ltd.
                                       26


On  February  26,  2002,  we filed a Current  Report on Form 8-K  regarding  the
announcement  our  financial  results  for the fourth  quarter and the full year
ended December 31, 2001.

On March  21,  2002,  we  filed a  Current  Report  on Form  8-K  regarding  the
announcement  of an amendment to our 1997 Stock Plan (as amended on December 22,
1998).
                                       27





                                    SIGNATURE

     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:     May 14, 2002                    By:  /s/ Fredric D. Price
       --------------------                    --------------------
                                           Fredric D. Price, Chairman and Chief
                                           Executive Officer (on behalf of the
                                           Registrant

Dated:     May 14, 2002                    By:  /s/ Kim R. Tsuchimoto
       --------------------                    ---------------------
                                           Vice President, Controller (principal
                                           accounting officer)

                                       28




                                  Exhibit Index


- -------------- -----------------------------------------------------------------
EXHIBIT                                           DESCRIPTION OF DOCUMENT
NUMBER
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
2.1            Acquisition Agreement for a Plan of Arrangement by and among the
               Company, BioMarin Acquisition (Nova Scotia) Company, and Glyko
               Biomedical Ltd., dated February 6, 2002, previously filed with
               the Commission on April 1, 2002 as Exhibit 2.5 to the Company's
               Annual Report on Form 10-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
10.1           Second Amended and Restated Agreement for Plan of Arrangement by
               and among the Company, BioMarin Delivery Canada Inc. and Synapse
               Technologies Inc., dated February 4, 2002, previously filed with
               the Commission on April 1, 2002 as Exhibit 10.26 to the Company's
               Annual Report on Form 10-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------
- -------------- -----------------------------------------------------------------
10.2           Amendment to BioMarin Pharmaceutical Inc. 1997 Stock Plan, as
               amended, as adopted March 20, 2002, previously filed with the
               Commission on March 21, 2002 as Exhibit 99.1 to the Company's
               Current Repot on Form 8-K, which is incorporated herein by
               reference.
- -------------- -----------------------------------------------------------------





                                       29