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 June 30, 2001

[ ]  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: 42,049,923 shares
common stock, par value $0.001, outstanding as of August 1, 2001.


















                          BIOMARIN PHARMACEUTICAL INC.

                                TABLE OF CONTENTS

<table>
                                                                                                 Page
                                                                                               
PART I.  FINANCIAL INFORMATION

         Item 1.  Financial Statements (Unaudited).

           Consolidated Balance Sheets..............................................................2
           Consolidated Statements of Operations for the three- and six-month
              periods ended June 30, 2000 and 2001 and for the period
              from March 21, 1997 (inception) through June 30, 2001.................................3
           Consolidated Statements of Cash Flows....................................................4
           Notes to Consolidated Financial  Statements..............................................5

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

         Item 3.   Quantitative and Qualitative Disclosure about Market Risk.......................18


PART II. OTHER INFORMATION

         Item 1.  Legal Proceedings................................................................19

         Item 2.  Changes in Securities and Uses of Proceeds.......................................19

         Item 3.  Defaults upon Senior Securities..................................................19

         Item 4.  Submission of Matters to a Vote of Security Holders..............................19

         Item 5.  Other Information................................................................19

         Item 6.  Exhibits and Reports on Form 8-K.................................................19

SIGNATURE..........................................................................................20

</table>


<table>
Item 1.  Financial Statements (Unaudited)


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

                        Consolidated Balance Sheets as of
                       December 31, 2000 and June 30, 2001
                                 (In Thousands)
<s>                                                    <c>                      <c>
                                                            December 31                June 30
                                                               2000                      2001
                                                       ----------------------   -----------------------
                                                                                     (unaudited)

Assets

Current assets:
    Cash and cash equivalents                                       $ 16,530                  $ 18,967
    Short-term investments                                            23,671                    40,918
    Accounts receivable, net                                           1,135                       727
    Due from BioMarin/Genzyme LLC                                      1,799                     1,504
    Inventories                                                          436                       480
    Prepaid expenses                                                     970                       990
                                                       ----------------------   -----------------------
      Total current assets                                            44,541                    63,586

Property, plant and equipment, net                                    20,715                    22,921
Goodwill and other intangibles, net                                    9,862                     8,868
Investment in BioMarin/Genzyme LLC                                     1,482                     1,753
Note receivable from officer                                               -                       860
Deposits                                                                 333                       333
                                                       ----------------------   -----------------------

      Total assets                                                  $ 76,933                  $ 98,321
                                                       ======================   =======================


Liabilities and Stockholders' Equity
Current liabilities:
    Accounts payable                                                 $ 4,747                   $ 3,049
    Accrued liabilities                                                2,109                     1,976
    Current portion of capital lease obligations                         -                          70
    Notes payable - short-term                                            27                        28
                                                       ----------------------   -----------------------
      Total current liabilities                                        6,883                     5,123

    Long-term portion of notes payable                                    56                        41
    Long-term portion of capital lease obligations                       -                         157
                                                       ----------------------   -----------------------
      Total liabilities                                                 6,939                     5,321
                                                       ----------------------   -----------------------

Stockholders' equity:
    Common stock, $0.001 par value:  75,000,000
      shares authorized.  36,921,966 and 42,044,764
      shares issued and outstanding December 31,
      2000 and June 30, 2001, respectively                                37                        42
    Additional paid in capital                                       153,940                   193,107
    Common stock warrants                                                  -                     5,134
    Deferred compensation                                             (1,530)                   (1,112)
    Notes from stockholders                                           (1,940)                   (1,989)
    Deficit accumulated during development stage                     (80,513)                 (102,182)
                                                       ----------------------   -----------------------
      Total stockholders' equity                                      69,994                    93,000
                                                       ----------------------   -----------------------

      Total liabilities and stockholders' equity                    $ 76,933                  $ 98,321
                                                       ======================   =======================



      The accompanying notes are an integral part of these statements.

</table>

                                       2
<page>
<table>

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

                                 Consolidated Statements of Operations
                        For the Three-Month Periods Ended June 30, 2000 and 2001
                            (In Thousands, except per share data, Unaudited)


                                                                         Three Months Ended June 30,
                                                                   ----------------------------------------
                                                                          2000                  2001
                                                                   -------------------    -----------------
<s>                                                                <c>                    <c>
Revenues:
      Revenues - products                                                       $ 595                $ 496
      Revenues - services                                                         118                  157
      Revenues from BioMarin/Genzyme LLC                                        2,370                2,851
      Revenues - other                                                              -                  160
                                                                   -------------------    -----------------
           Total revenues                                                       3,083                3,664
                                                                   -------------------    -----------------

Operating Costs and Expenses
      Cost of products                                                            144                  219
      Cost of services                                                             20                   89
      Research and development                                                  7,917               11,715
      Selling, general and administrative                                       2,190                2,309
      Carson Street closure                                                         -                    -
                                                                   -------------------    -----------------

           Total operating costs and expenses                                  10,271               14,332
                                                                   -------------------    -----------------

Loss from operations                                                           (7,188)             (10,668)

Interest income                                                                   802                  436
Interest expense                                                                   (2)                  (1)
Loss from BioMarin/Genzyme LLC                                                   (698)              (1,736)
                                                                   -------------------    -----------------

Net loss                                                                     $ (7,086)           $ (11,969)
                                                                   ===================    =================

Net loss per share, basic and diluted                                         $ (0.20)             $ (0.30)
                                                                   ===================    =================

Weighted average common shares outstanding
      basic and diluted                                                        35,397               39,587
                                                                   ===================    =================




                     The accompanying notes are an integral part of these statements.







                                       3
</table>
<page>
<table>

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

                      Consolidated Statements of Operations
         For the Six-Month Periods Ended June 30, 2000 and 2001 and for
           the Period from March 21, 1997 (Inception) to June 30, 2001
                (In Thousands, except per share data, Unaudited)

                                                                                                           Period from
                                                                                                          March 21, 1997
                                                                    Six Months Ended June 30,             (Inception) to
                                                              --------------------------------------
                                                                    2000                 2001             June 30, 2001
                                                              ------------------    ----------------    -------------------
<s>                                                           <c>                   <c>                 <c>
Revenues:
      Revenues - products                                               $ 1,087             $ 1,188                $ 5,072
      Revenues - services                                                   168                 174                    621
      Revenues from BioMarin/Genzyme LLC                                  5,126               5,542                 21,410
      Revenues - other                                                        -                 160                    453
                                                              ------------------    ----------------    -------------------
          Total revenues                                                  6,381               7,064                 27,556
                                                              -------------------    ---------------    -------------------

Operating Costs and Expenses
      Cost of products                                                      292                 485                  1,531
      Cost of services                                                       53                  94                    339
      Research and development                                           16,580              21,699                 97,115
      Selling, general and administrative                                 4,186               4,512                 24,577
      Carson Street closure                                               4,423                   -                  4,423
                                                              ------------------    ----------------    -------------------
          Total operating costs and expenses                             25,534              26,790                127,985
                                                              -------------------    ---------------    -------------------

Loss from operations                                                    (19,153)            (19,726)              (100,429)

Interest income                                                           1,590                 904                  6,465
Interest expense                                                             (4)                 (3)                  (742)
Loss from BioMarin/Genzyme LLC                                           (1,255)             (2,844)                (7,476)
                                                              ------------------    ----------------    -------------------

Net loss                                                              $ (18,822)          $ (21,669)            $ (102,182)
                                                              ==================    ================    ===================

Net loss per share, basic and diluted                                   $ (0.53)            $ (0.57)               $ (3.84)
                                                              ==================    ================    ===================

Weighted average common shares outstanding                               35,206              38,313                 26,593
      basic and diluted                                       ==================    ================    ===================




                             The accompanying notes are an integral part of these statements.


                                       4
</table>
<page>
<table>

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

                      Consolidated Statements of Cash Flows
         For the Six-Month Periods Ended June 30, 2000 and 2001 and for
           the Period from March 21, 1997 (Inception) to June 30, 2001
                            (In Thousands, Unaudited)


                                                                                                   Period from
                                                                                                 March 21, 1997
                                                                Six Months Ended June 30,        (Inception) to
                                                             --------------------------------
                                                                  2000             2001           June 30, 2001
                                                             ---------------   --------------    ----------------

<s>                                                          <c>               <c>               <c>
Cash flows from operating activities:
Net loss                                                          $ (18,822)       $ (21,669)         $ (102,182)
Adjustments to reconcile net loss to
net cash used in operating activities:
   Depreciation                                                       2,186            2,444              11,178
   Amortization of deferred compensation                                639              418               3,330
   Amortization of goodwill                                             606            1,100               4,114
   Loss from BioMarin/Genzyme LLC                                     6,362            8,386              28,041
   Compensation in the form of common stock
     and common stock options                                             -                -                  18
   Write-off of in-process technology                                     -                -               2,625
   Carson Street closure                                              3,791                -               3,791
Changes in operating assets and liabilities:
   Accounts receivable, net                                            (355)             408                (726)
   Due from BioMarin/Genzyme LLC                                       (196)             295              (1,504)
   Note receivable from officer                                           -             (860)               (860)
   Inventories                                                          181              (44)                120
   Prepaid expenses                                                    (313)             (20)               (990)
   Deposits                                                            (182)               -                (333)
   Accounts payable                                                  (2,105)          (1,698)              3,049
   Accrued liabilities                                                 (155)            (133)              2,033
                                                             ---------------   --------------    ----------------
   Total adjustments                                                 10,459           10,353              53,886
                                                             ---------------   --------------    ----------------
       Net cash used in operating activities                         (8,363)         (11,316)            (48,296)
                                                             ---------------   --------------    ----------------

Cash flows from investing activities:
   Purchase of property, plant and equipment                         (1,275)          (4,423)            (37,663)
   Investment in BioMarin/Genzyme LLC                                (6,923)          (8,657)            (29,794)
   Sale (purchase) of short-term investments                            770          (17,247)            (40,918)
   Purchase of Biochemical Research Reagent
     Division of Oxford GlycoSciences, Plc.                               -             (163)             (1,663)
                                                             ---------------   --------------    ----------------
        Net cash used in investing activities                        (7,428)         (30,490)           (110,038)
                                                             ---------------   --------------    ----------------

Cash flows from financing activities:
   Proceeds from the sale of common stock and warrants,
     net of issuance costs                                                -           43,586             142,495
   Proceeds from issuance of convertible notes payable                    -                -              25,615
   Proceeds from exercise of common stock options and warrants        3,001              513               7,155
   Repayment of note from stockholders                                    -                -                 804
   Issuance of common stock for ESPP                                      -              158                 472
   Proceeds from notes payable                                            -                -                 134
   Repayment of equipment loan                                          (14)             (14)                (66)
   Other                                                                  -                -                 692
                                                             ---------------   --------------    ----------------
Net cash provided by financing activities                            2,987           44,243             177,301
                                                             ---------------   --------------    ----------------
Net increase (decrease) in cash and cash equivalents                (12,804)           2,437              18,967
Cash and cash equivalents, beginning of period                       23,413           16,530                   -
                                                             ---------------   --------------    ----------------
Cash and cash equivalents, end of period                           $ 10,609         $ 18,967            $ 18,967
                                                             ===============   ==============    ================


     The accompanying notes are an integral part of these statements.

                                       5
</table>
<page>

                  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 Companys outstanding common stock being reduced to 27.0 percent at June 30,
2001.

On October 7, 1998, the Company acquired Glyko, Inc., a wholly-owned  subsidiary
of GBL, in a transaction valued at $14.5 million.  The transaction was accounted
for as a purchase and resulted in Glyko, Inc. becoming a wholly-owned subsidiary
of the  Company.  Glyko,  Inc.  provides  products  and  services  that  perform
sophisticated  carbohydrate  analysis for research  institutions  and commercial
laboratories.

In January 2001,  the Company signed an agreement  with Acqua  Wellington  North
American  Equities Fund Ltd. (Acqua  Wellington) for an equity investment in the
Company.  Under the terms of the agreement,  the Company will have the option to
request Acqua Wellington to invest through sales of registered common stock at a
small discount to market price.  The maximum amount that the Company may request
to be invested in any one month is dependent  upon the market price of the stock
(or 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 the  Company.  In addition,  the
Company, at its discretion, may 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.  In the initial  transaction under
this agreement on February 2, 2001,  Acqua Wellington  purchased  101,523 shares
for $1 million  ($848,000 net of issuance  costs,  the majority of which will be
nonrecurring  upon future  transactions  associated with this agreement).  Under
this  agreement,  Acqua  Wellington may also purchase stock and receive  similar
terms to any other equity financing raised by the Company.

In May 2001,  the Company  completed  two private  placements  of the  Companys
securities,  raising total net proceeds of approximately  $42.7 million.  On May
16, 2001, the Company sold  4,763,712  shares of common stock at $9.45 per share
and, for no additional  consideration,  issued  three-year  warrants to purchase
714,554  shares of common  stock at $13.10  per  share.  On May 17,  2001 a fund
managed  by Acqua  Wellington  purchased  105,821  shares  of  common  stock and
received  warrants to purchase  15,873  shares of common stock on the same price
and terms as the May 16, 2001 transaction.

Through June 30, 2001, the Company had accumulated losses during its development
stage of approximately $102.2 million. Based on current plans,
management expects to incur further losses at least through 2002. Management
believes that the Companys cash and cash equivalents and short-term investment
balances at June 30, 2001 will be sufficient to meet the Companys obligations
at least through 2002. Until we can generate sufficient levels of cash from our
operations, we expect 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. Operating results for the three- and six-month periods ended
June 30, 2001 are not necessarily indicative of the results that may be expected
for the year ending December 31, 2001. These consolidated  financial  statements
should  be read in  conjunction  with the  financial  statements  and  footnotes
thereto for the year ended December 31, 2000 included in the Companys 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.  Significant
estimates  made by  management  include  determination  of  progress  to date of
research  and  development  projects  in-process,  the  amortization  period  of
goodwill and other intangibles, and asset impairment reserves related to certain
leasehold improvements and equipment.

                                       6

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 cost at June 30, 2001, which  approximates fair market value.  These
securities  are  comprised  mainly of A1/P1 rated  commercial  paper and Federal
Agency investments, including Federal Home Loans and Federal Farm Credits.


Goodwill and Other Intangibles, net

Pursuant to the purchase agreement between Oxford GlycoSciences,  Plc. (OGS) and
Glyko,  Inc.  dated May 4, 1999,  the  Company  paid OGS  $163,000  in June 2001
representing the deferred final installment of the purchase price,  based on two
years of sales of OGS  products  and  inventory.  This amount was recorded as an
increase to Goodwill  and Other  Intangibles  in the  accompanying  consolidated
balance sheets.


Investment in BioMarin/Genzyme LLC and Related Revenue

Under the terms of the Companys  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, 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  percentage of the research and  development  costs incurred by the
Company  and  billed to the joint  venture  that was funded by the  Company  was
recorded as a credit to the Companys 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 residential  property and issued
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.


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 and equipment consisted of the following (in thousands):
<table>





                                      December 31,              June 30,                 Estimated
                                         2000                     2001                  Useful Lives
                                   ------------------      -----------------     -------------------------
<s>                                <c>                     <c>                   <c>
Computer hardware and software     $            678        $            869             3 years
Office furniture and equipment                1,056                   1,337             5 years
Manufacturing/laboratory equipment            9,323                  10,828             5 years
Leasehold improvements                       16,685                  19,346         Shorter of life of
                                                                                    asset or lease term
Construction in progress                      1,048                   1,060
                                   ------------------      -----------------
                                             28,790                  33,440
                                   ------------------      -----------------

Less:  Accumulated depreciation              (8,075)                (10,519)
                                   ==================     ==================

               Total, net          $         20,715        $         22,921
                                   ==================     ==================

</table>
Research and Development

Research and development  expenses include the expenses associated with contract
research and  development  provided by third parties,  research and  development
provided in connection  with the  BioMarin/Genzyme  LLC joint venture  including
clinical  manufacturing,   clinical  operations  and  regulatory,  and  internal
research and development costs. All research and development  expenses discussed
above 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. Diluted net
income per share is calculated by dividing net income by the weighted average of
common stock outstanding and potential common shares during the period.
Potential common shares include dilutive shares issuable upon the exercise of
outstanding common stock options, warrants, and contingent issuances of common
stock. For periods in which the Company has losses, such potential common shares
are excluded from the computation of diluted net loss per share, as their effect
is anti-dilutive.


3.    CARSON STREET CLOSURE:

During the first quarter of 2000, the Company decided to close its Carson Street
clinical manufacturing facility. In connection with this decision the Company
recorded a charge of approximately $4.4 million. The charge primarily consisted
of impairment reserves for leasehold improvements and equipment located in the
Carson Street facility.


4.    NEW ACCOUNTING PRONOUNCEMENTS:

On June 29, 2001, the Financial  Accounting  Standards Board (FASB) approved for
issuance  Statement of Financial  Accounting  Standards (SFAS) No. 141. Business
Combinations, and SFAS No. 142, Goodwill and Intangible Assets. Major provisions
of these Statements are as follows:  all business  combinations  initiated after
June 30,  2001  must use the  purchase  method of  accounting;  the  pooling  of
interests method of accounting is prohibited  except for transactions  initiated
before July 1, 2001;  intangible assets acquired in a business  combination must
be recorded  separately  from goodwill if they arise from  contractual  or other
legal  rights  or are  separable  from  the  acquired  entity  and can be  sold,
transferred,  licensed, rented or exchanged, either individually or as part of a
related contract,  asset or liability; all acquired goodwill must be assigned to
reporting  units for  purposes of  impairment  testing  and  segment  reporting;
effective January 1, 2002,  goodwill and intangible assets with indefinite lives
will not be amortized but will be tested for  impairment  annually  using a fair
value  approach,  except in  certain  circumstances,  and  whenever  there is an
impairment  indicator;  other  intangible  assets will continue to be valued and
amortized  over their  estimated  lives;  in-process  research  and  development
acquired in business  combinations  will continue to be written off immediately;
goodwill arising between June 29, 2001 and December 31, 2001 will not be subject
to  amortization.  Management  is  currently  assessing  the  impact  of the new
standards.  Amortization  of  goodwill  which will cease upon  adoption  of this
standard  totaled  $0.5  million  and $1 million  for the  three- and  six-month
periods ended June 30, 2001 respectively.

                                       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 for debilitating, life-threatening, chronic genetic
diseases  and other  diseases or  conditions.  Since our  inception on March 21,
1997,  we have been engaged in research and  development  activities,  including
preclinical  studies,   clinical  trials,   clinical   manufacturing,   and  the
establishment of laboratory and  manufacturing  facilities,  and  administrative
activities.

We have  incurred  net losses since  inception  and had an  accumulated  deficit
through June 30, 2001 of $102.2 million. Our losses have resulted primarily from
research and  development  activities and related  administrative  expenses.  We
expect to continue to incur operating losses at least through 2002.

To date,  we have not generated  revenues from the sale of our drug  candidates.
Our lead product is Aldurazyme,  laronidase for  injection,  (recombinant  human
(alpha)-L-iduronidase),  which is undergoing  clinical  trials for use in enzyme
replacement  therapy for  Mucopolysaccharidosis-I  or MPS I. We have initiated a
clinical trial of rhASB (recombinant human  N-acetylgalactosamine-4  sulfatase),
for  use  in  enzyme  replacement   therapy  for  the  treatment  of  MPS VI  or
Maroteaux-Lamy Syndrome. We have also successfully conducted preclinical studies
in pigs and mice of our burn debridement (cleaning) enzyme, Vibriolysin Topical,
for use in wound debridement in preparation for skin grafting.  In June 2001, we
submitted a Clinical Trial Exemption application to the Medicines Control Agency
in the United Kingdom and we expect to begin a clinical trial in the second half
of 2001.


In January 2001, we signed an agreement  with Acqua  Wellington  North  American
Equities Fund Ltd. (Acqua  Wellington) for an equity investment in us. Under the
terms of the agreement,  we will have the option to request Acqua  Wellington to
invest  through  sales of our  registered  common  stock at a small  discount to
market price.  The maximum  amount that we may request to be invested in any one
month is  dependent  upon the  market  price of our  stock  (or 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.  In the initial  transaction  under this  agreement on February 2,
2001, Acqua Wellington  purchased 101,523 shares for $1 million ($848,000 net of
issuance  costs,  the  majority  of  which  will  be  nonrecurring  upon  future
transactions  associated  with this  agreement).  Under  this  agreement,  Acqua
Wellington may also purchase stock and receive similar terms to any other equity
financing raised by us.

In May 2001, we completed  two private  placements  of its  securities,  raising
total net proceeds of  approximately  $42.7  million.  On May 16, 2001,  we sold
4,763,712  shares of our common stock at $9.45 per share and, for no  additional
consideration,  issued  three-year  warrants to purchase  714,554  shares of our
common stock at an exercise  price of $13.10 per share.  On May 17, 2001, a fund
managed by Acqua  Wellington  purchased  105,821  shares of our common stock and
received  warrants to  purchase  15,873  shares of our common  stock on the same
price and terms as the May 16, 2001 transaction.

                                       9

Results of Operations

The Quarters Ended June 30, 2001 and 2000

Revenues  for the second  quarter  of 2001  totaled  $3.7  million  compared  to
revenues of $3.1  million in the second  quarter of 2000.  Second  quarter  2001
revenues  included  $2.9 million for services  provided to the joint venture for
Aldurazyme compared to $2.4 million in the same period in 2000. The increase was
primarily  the result of  clinical  testing  expenses  relating to the Phase III
clinical trial of Aldurazyme and increased regulatory  expenses.  Second quarter
2001  revenues  also  included  $653,000  generated by Glyko,  Inc.  compared to
$713,000 for the second  quarter of 2000.  The decrease in product  revenues was
primarily due to reduced enzyme sales.

Cost of products and cost of services  related to Glyko,  Inc.  operations  were
$308,000  in the second  quarter  of 2001 and were  $164,000  in the  comparable
period of 2000. Glykos total external product and service costs as a percent of
the sales of products  and services  were 47% in the second  quarter of 2001 and
23% in the second  quarter of 2000.  The change was due primarily to an increase
in labor content in the cost of sales in 2001.

Research and  development  expenses for the second  quarter of 2001 increased by
$3.8 million to $11.7  million from $7.9 million in the second  quarter of 2000.
Increased expenses in support of our Aldurazyme,  rhASB and Vibriolysin  Topical
programs  were the major  factors  in the  growth of  research  and  development
expenses.

Selling,  general and  administrative  expenses increased to $2.3 million in the
second  quarter  of 2001 from $2.2  million  in the second  quarter  2000.  This
increase was primarily due to the  acceleration of the  amortization of goodwill
resulting  from the purchase of Glyko,  Inc. The estimated  life of the goodwill
was decreased from ten years to seven years in the third quarter of 2000.

The  Companys  equity in the loss of its joint  venture  with  Genzyme was $1.7
million for the second quarter 2001 compared to $0.7 million for the same period
of 2000 as the joint venture continued its original clinical trial and began its
Phase III clinical trial of Aldurazyme late in 2000.

Interest income was $436,000 for the second quarter of 2001 compared to $802,000
for the same  period  of 2000.  The  decrease  was  primarily  due to  decreased
interest  rates and the  reduction  of cash,  cash  equivalents  and  short-term
investment  balances  available for investment prior to the private placement in
May 2001.

Net loss was $12.0  million  ($0.30 per share,  basic and diluted) in the second
quarter of 2001 compared to a net loss of $7.1 million  ($0.20 per share,  basic
and diluted) in the comparable period of 2000.


Six Months Ended June 30, 2001 and 2000

Revenues for the first half of 2001 totaled $7.1 million compared to revenues of
$6.3  million in the first half of 2000.  First half of 2001  revenues  included
$5.5 million for services provided to the joint venture for Aldurazyme  compared
to $5.1  million in the same period in 2000.  The  increase was due to increased
services  provided to the Aldurazyme joint venture.  First half of 2001 revenues
also included $1.4 million generated by Glyko, Inc. compared to $1.3 million for
the first  half of 2000  primarily  as a result of  increased  sales in both the
United States and European sales offices.

Cost of products and cost of services  related to Glyko,  Inc.  operations  were
$579,000 in the first half of 2001 and were $345,000 in the comparable period of
2000. Glykos total external product and service costs as a percent of the sales
of products and services were 43% in the first half of 2001 and 27% in the first
half of  2000.  The  change  was due to the same  reasons  as  discussed  in the
quarterly results above.

Research and  development  expenses for the first half of 2001 increased by $5.1
million to $21.7 million from $16.6 million in the first half of 2000. Increased
expenses  were due to the same  reasons as discussed  in the  quarterly  results
above.

Selling,  general and  administrative  expenses increased to $4.5 million in the
first half of 2001 from $4.2  million in the first half of 2000.  This  increase
was due to the same reasons as discussed in the above quarterly results above.

In the first half of 2000, the Company  recorded a provision of $4.4 million for
the closure of its Carson Street clinical manufacturing  facility. The provision
primarily  consisted of  impairment  reserves  for  leasehold  improvements  and
equipment located in the Carson Street facility.

The  Companys  equity in the loss of its joint  venture  with  Genzyme was $2.8
million for the first half of 2001  compared to $1.3 million for the same period
of 2000.  The increase was due to the same reasons as discussed in the quarterly
results above.

                                       10

Interest  income was $0.9  million  for the first half of 2001  compared to $1.6
million for the same period of 2000. The decrease was due to the same reasons as
discussed in the quarterly results above.

Net loss was $21.7  million  ($0.57 per share,  basic and  diluted) in the first
half of 2001 compared to a net loss of $18.8 million ($0.53 per share, basic and
diluted) in the comparable period of 2000.


Liquidity and Capital Resources

We have  financed our  operations  since our inception by the issuance of common
stock and  convertible  notes and the  related  interest  income  earned on cash
balances available for short-term  investment.  Since inception,  we have raised
aggregate net proceeds of approximately $177.3 million. We were initially funded
by GBL with a $1.5 million  investment.  We have since raised additional capital
from the sale of common  stock in  private  placements,  the sale of  promissory
notes  convertible  into common  stock,  an investment by Genzyme as part of our
joint venture with them, an initial public offering  including the underwriter's
over-allotment exercise, an investment in our common stock by Genzyme concurrent
with the initial  public  offering,  the sale of common stock under our facility
with Acqua Wellington, and sales from stock option and warrant exercises and the
Employee Stock Purchase Plan.

Our combined cash,  cash  equivalents and short-term  investments  totaled $59.9
million at June 30,  2001,  an increase  of $19.7  million for the first half of
2001. The primary uses of cash during the six months ended June 30, 2001 were to
finance operations,  fund the joint venture and purchase equipment and leasehold
improvements.  The primary source of cash during this period was the sale of $46
million  of common  stock in  private  placements,  the sale of $1.0  million of
common stock to Acqua  Wellington,  the issuance of common stock pursuant to the
exercise of stock  options  under the 1997 Stock Option Plan and sales of common
stock under our Employee  Stock Purchase Plan. For the six months ended June 30,
2001,  operations  used $11.3  million,  we invested  $8.7  million in the joint
venture  (which was consumed in joint  venture  operations),  we purchased  $4.4
million of equipment and leasehold  improvements,  we paid our final installment
of  $163,000  to  Oxford  GlycoSciences,  Plc.  for  the  1999  purchase  of its
biochemical  reagent  business,  we raised net proceeds of  approximately  $42.7
million from our private  placement,  we received  $0.8 million (net of issuance
costs)  from the sale of common  stock to Acqua  Wellington,  $513,000  from the
exercise of stock options and $158,000 from the sale of common stock pursuant to
the Employee Stock Purchase Plan.

From our inception through June 30, 2001, we have purchased  approximately $37.7
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  increase  manufacturing  capacity  for both  commercial  and clinical
requirements.

As part of the acquisition of Glyko, Inc., we acquired  in-process  research and
development  projects,  the value of which  was  expensed  as a  portion  of the
purchase price at the time of the acquisition. The 11 projects acquired are each
relatively small and can be grouped into two categories,  analytic  projects and
diagnostic projects.

The analytic projects are intended to expand the analytic product line by adding
new enzymes for  reagent  sales,  new kits for  agricultural  applications,  new
instrument  capabilities  for protein  analysis and a major  upgrade of software
capabilities. At the time of the acquisition of Glyko, Inc., all of the analytic
projects  had  completed  feasibility  work and the software  projects  were 75%
complete and have since been completed. The development of specialized materials
supporting instrument  capabilities is deemed to be the most difficult technical
hurdle for the completion and  commercialization  of the analytic projects.  The
fair  value  of the  analytic  projects  was  $1.7  million  at the  time of the
acquisition.

The  diagnostic  projects  are  intended to expand a product  line based on very
precise measurements of the level of complex carbohydrates in blood and urine as
indicators of serious disease conditions including heart disease, kidney disease
and  mucopolysaccharidoses  or carbohydrate  lysosomal storage diseases.  At the
time of the Glyko, Inc. acquisition,  preliminary feasibility work had been done
for  all  of the  projects  and a  software  project  was  well  advanced  as to
programming,  which  has  since  been  completed.  The  development  of new more
sensitive  carbohydrate  chemistry techniques is deemed to be the most difficult
technical  hurdle for the  completion  and  commercialization  of the diagnostic
products.  The fair value of the diagnostic projects was $924,000 at the time of
the acquisition.

As of June 30, 2001, we had expended to date  approximately  $1.2 million on the
analytic  projects and $1.3  million on the  diagnostic  projects.  All acquired
in-process  research  and  development  of  analytic  projects  have either been
completed or terminated as of June 30, 2001. In order to replace those  analytic
projects  terminated,  new analytic  projects have been initiated.  We expect to
spend  approximately  $200,000 to  complete  the  diagnostic  projects in phases
within the next 3 months.  None of the diagnostic  projects have been terminated
to date.

                                       11

Since the acquisition of these  in-process  research and  development  projects,
there have been no subsequent  developments  which  indicate that the completion
and  commercialization of either of the projects are less likely to be completed
on the original planned schedule or less likely to be a commercial success.

We have  made and plan to make  substantial  commitments  to  capital  projects,
including   expanding  the  Aldurazyme  and  rhASB   manufacturing   facilities,
developing  new  research  and   development   facilities,   and  expanding  our
administrative and support offices.

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
purchased  $8.0  million in common stock upon  signing the  agreement  and $10.0
million of common stock at the IPO price of $13 per share in a private placement
concurrent with the initial public offering.  Genzyme has committed to pay us an
additional  $12.1  million  upon  approval by the FDA of the  biologics  license
application (BLA) for Aldurazyme as a treatment for MPS-I.

In January 2001, we signed an agreement  with Acqua  Wellington  North  American
Equities Fund Ltd. (Acqua  Wellington) for an equity investment in us. Under the
terms of the agreement,  we will have the option to request Acqua  Wellington to
invest  through  sales of our  registered  common  stock at a small  discount to
market price.  The maximum  amount that we may request to be invested in any one
month is  dependent  upon the  market  price of our  stock  (or 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.  In the initial  transaction  under this  agreement on February 2,
2001, Acqua Wellington  purchased 101,523 shares for $1 million ($848,000 net of
issuance  costs,  the  majority  of  which  will  be  nonrecurring  upon  future
transactions  associated  with this  agreement).  Under  this  agreement,  Acqua
Wellington may also purchase stock and receive similar terms to any other equity
financing raised by us.

In May 2001, we completed  two private  placements  of its  securities,  raising
total net proceeds of  approximately  $42.7  million.  On May 16, 2001,  we sold
4,763,712  shares of our common stock at $9.45 per share and, for no  additional
consideration,  issued  three-year  warrants to purchase  714,554  shares of our
common stock at an exercise  price of $13.10 per share.  On May 17, 2001, a fund
managed by Acqua  Wellington  purchased  105,821  shares of our common stock and
received  warrants to  purchase  15,873  shares of our common  stock on the same
price and terms as the May 16, 2001 transaction.

The net proceeds  from any sales of our common stock in private  placements  and
sales of our common  stock to Acqua  Wellington  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,
rhASB for MPS VI and our program for Vibriolysin Topical, which is being studied
for the debridement  (cleaning) of severe burns.  In addition,  net proceeds may
also be used  for the  research  and  development  of other  pipeline  products,
building of the Companys supporting infrastructure, and other general corporate
purposes.

We expect our current funds to last at least  through the end of 2002.  Until we
can  generate  sufficient  levels  of cash  from our  operations,  we  expect to
continue to finance future cash needs through:

    .  The sale of equity securities

    .  Equipment-based financing

    .  Collaborative agreements with corporate partners

We do not expect to generate positive cash flow from operations at least through
2002  because  we expect to  increase  operational  expenses  and  manufacturing
investment  for the joint  venture  and to  increase  research  and  development
activities, including:

    .  Preclinical studies, clinical trials and regulatory review

    .  Development of manufacturing operations

    .  Process development activities

    .  Scale-up of manufacturing processes in larger capacity facilities


We anticipate a need for additional  financing to fund the future  operations of
our business,  including the  commercialization of our drug candidates 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.

                                       12

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

    .  The progress of our research and development programs

    .  The progress of preclinical studies and clinical trials

    .  The time and cost involved in obtaining regulatory approvals

    .  Scaling up, installing and validating manufacturing capacity

    .  Competing technological and market developments

    .  Changes and developments in collaborative, licensing and other
       relationships

    .  The development of commercialization activities and arrangements

    .  The leasing and build-out of additional facilities

    .  The purchase of additional capital equipment

We plan to  continue  our  policy of  investing  available  funds in  government
securities and investment  grade,  interest-bearing  securities,  primarily with
maturities  of one  year or  less.  We do not  invest  in  derivative  financial
instruments, as defined by Statement of Financial Accounting Standards No. 119.


New Accounting Pronouncements

On June 29, 2001, the Financial  Accounting  Standards Board (FASB) approved for
issuance  Statement of Financial  Accounting  Standards (SFAS) No. 141, Business
Combinations, and SFAS No. 142, Goodwill and Intangible Assets. Major provisions
of these Statements are as follows:  all business  combinations  initiated after
June 30,  2001  must use the  purchase  method of  accounting;  the  pooling  of
interests method of accounting is prohibited  except for transactions  initiated
before July 1, 2001;  intangible assets acquired in a business  combination must
be recorded  separately  from goodwill if they arise from  contractual  or other
legal  rights  or are  separable  from  the  acquired  entity  and can be  sold,
transferred,  licensed, rented or exchanged, either individually or as part of a
related contract,  asset or liability; all acquired goodwill must be assigned to
reporting  units for  purposes of  impairment  testing  and  segment  reporting;
effective January 1, 2002,  goodwill and intangible assets with indefinite lives
will not be amortized but will be tested for  impairment  annually  using a fair
value  approach,  except in  certain  circumstances,  and  whenever  there is an
impairment  indicator;  other  intangible  assets will continue to be valued and
amortized  over their  estimated  lives;  in-process  research  and  development
acquired in business  combinations  will continue to be written off immediately;
goodwill arising between June 29, 2001 and December 31, 2001 will not be subject
to  amortization.  Management  is  currently  assessing  the  impact  of the new
standards.  Amortization  of  goodwill  which will cease upon  adoption  of this
standard  totaled  $0.5  million and $1.0  million for the three- and  six-month
periods ended June 30, 2001, respectively.


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.  For a more complete discussion of
     the  factors  that we  currently  consider  to pose a material  risk to our
     business,  please see the section entitled  "Factors That May Effect Future
     Results" in our Annual Report on Form 10-K.


Research and Development/Rapid Growth

A  substantial  portion  of our  business  plan is based  upon the  development,
production  and  sale of  carbohydrate  enzyme  therapies  for  various  medical
applications.  Although we currently have several  products at various stages of
research  and  development,  none  of our  enzyme  therapies  are  approved  for
marketing and sales.  All of the products  currently in development will require
substantial  additional research and development including clinical trials prior
to distribution and sales.

To be able to effectively  address all of the issues  associated with developing
commercially  viable  products,  we need to  continue to develop and improve our
research and development  capabilities,  manufacturing  and quality  capacities,
sales and marketing capabilities,  and financial and administrative systems. Our
systems,  procedures  and controls may not be adequate to support our operations
and  our  management  may  not be  able to  successfully  manage  future  market
opportunities or our relationships with customers and other third parties.

                                       13

Because the development and manufacture of our enzyme therapy  products  require
specialized  technical  expertise,  the loss of key  scientific,  technical  and
managerial  personnel  may  delay  or  otherwise  harm our  product  development
programs.  We rely  heavily  on our  ability to  attract  and  retain  qualified
scientific,  technical and managerial  personnel.  The competition for qualified
personnel in the biopharmaceutical  field is intense. Our location is in the San
Francisco   Bay   Area,   which   has  a  rapidly   growing   concentration   of
biopharmaceutical  companies, exposes us to particularly intense competition for
qualified  staff at all  levels.  We may not be able to  continue to attract and
retain qualified personnel necessary for the development of our business.


Capital Resources

Developing and bringing our carbohydrate  enzyme therapy products to market is a
particularly  time  consuming  and  capital  intensive  process  which  requires
substantial  expenditures.  We  believe  that the cash,  cash  equivalents,  and
short-term investment securities balances at June 30, 2001 will be sufficient to
meet our  operating and capital  requirements  at least through the end of 2002.
This  estimate  is based on  assumptions  and  estimates,  which may prove to be
wrong.  As a result,  we may need to or choose  to obtain  additional  financing
during that time. Such financing may not be available when needed. If we fail to
raise additional financing as we need it, we will have to delay or terminate our
product development programs.


Regulatory Considerations

We must  obtain  regulatory  approval  before  marketing  or  selling  our  drug
products.  In the United States,  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  candidates  could  take a  significantly  longer  time to gain  regulatory
approval than we expect or may never gain  approval.  If regulatory  approval is
delayed,  our  managements  credibility,  the  value  of our  Company,  and our
operating results will be adversely affected.

As part of the FDA approval process, we must conduct, at our own and one or more
partners (if any) expense, preclinical studies in the laboratory and on animals,
and clinical trials on humans for each drug candidate. The number of preclinical
studies and clinical trials that the FDA will require will vary depending on the
drug product,  the disease or condition the drug is being  developed to address,
the results of prior  studies  and trials,  and  regulations  applicable  to the
particular drug. Even if we obtain favorable  results in preclinical  studies on
animals,  the results in humans may be  different.  Results of initial  clinical
trials on a small number of patients may not predict  results on larger clinical
trials on a larger number of patients.  Adverse or inconclusive clinical results
would stop us from filing for regulatory approval of our products.

Typically, if a drug product, such as Aldurazyme, is intended to treat a chronic
disease,  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  addition,
clinical  trials on humans are  typically  conducted  in three  phases.  The FDA
generally  requires two pivotal  clinical  trials that  demonstrate  substantial
evidence  of  safety,  efficacy  and  appropriate  dosing  in  a  broad  patient
population at multiple sites to support an application for regulatory  approval.
If a drug is  intended  for  the  treatment  of a  serious  or  life-threatening
condition and the drug demonstrates the potential to address unmet medical needs
for this condition,  fewer trials may be sufficient to prove safety and efficacy
under the FDA's Modernization Act of 1997.

Where appropriate, we intend to seek fast track designation from the FDA for our
drug  candidates.  To date,  Aldurazyme  and rhASB  have  received  a fast track
designation.  However,  a fast track  designation  does not  guarantee  a faster
review process or a faster approval compared to the normal FDA procedures.

In addition to the risks associated with obtaining  regulatory  approval for our
products,  we must comply with strict  regulatory  requirements  relating to the
manufacture of our drug candidates that can be costly and could delay or prevent
our production  efforts.  Our  manufacturing  facilities must obtain  regulatory
certification prior to production and upon any material change to the production
process,  before and after product  approval,  and are  continuously  subject to
inspection  by  the  FDA,  the  State  of  California  and  foreign   regulatory
authorities.  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.  Manufacture of our
drug products must comply with the FDAs  current Good  Manufacturing  Practices
regulations, commonly known as cGMP. The cGMP regulations govern quality control
and documentation policies and procedures. We cannot guarantee that the Company,
or any potential third-party  manufacturer of our drug products, will be able to
comply with cGMP regulations.

                                       14

Protection of Intellectual Property

We are  dependent on the  protection  of our  intellectual  property.  We employ
several  strategies  to attempt to prevent our  competitors  from  utilizing our
research  and  technical  information.  However,  these  strategies  may  not be
successful.

Where  appropriate,  we  seek  patent  protection  for  certain  aspects  of our
technology.  Meaningful  patent  protection may not be available for some of the
enzymes we are developing,  including Aldurazyme and rhASB. The patent positions
of biotechnology  companies are extremely  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,  including the
structure of the enzymes, the methods for purifying or producing the enzymes and
the  methods of  treatment,  has  existed in the public  domain for many  years.
Publication    of   this    information    may   prevent   us   from   obtaining
composition-of-matter  patents,  which  are  generally  believed  to  offer  the
strongest patent protection.

Even if we seek a patent on an aspect of our  technology,  obtaining  the patent
may be difficult or impossible  and may require the  expenditure  of substantial
time and money.  Competitors  may interfere with our patent process in a variety
of ways, including claiming that they invented the claimed invention prior to us
or that we are  infringing on their  patents.  Competitors  may also contest our
patents by showing the patent examiner that the invention was obvious or was not
original or novel.

Even if we receive a patent, it 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.  Also,  enforcing patents is
expensive and may absorb  significant time by our management.  In litigation,  a
competitor  could  claim that our issued  patents  are not valid for a number of
reasons.  If  the  court  agrees,  we  would  lose  that  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.

In addition to seeking  patent  protection  for our  intellectual  property,  we
attempt to protect our trade  secrets from  disclosure  to our  competitors.  We
accomplish this in a number of ways, including limiting access to information to
necessary  employees and requiring persons with access to trade secrets to enter
into nondisclosure agreements.

It is 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.  Also,  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
include  claims  related  to  (alpha)-L-iduronidase.   Our  lead  drug  product,
Aldurazyme,  may infringe on these  patents.  We believe that these  patents are
invalid on a number of  grounds.  Patents  making the same  claims were filed in
Europe and have been rejected and cannot be refiled in Europe. Our challenges to
the  U.S.  patents  may be  unsuccessful,  but  the  rejection  of the  European
applications support our strategy to challenge the validity of the U.S. patents.
Even if we are successful, challenging the patents may be expensive, require our
management   to  devote   significant   time  to  this   effort  and  may  delay
commercialization of our product in the United States.

The patent  holders have  granted  exclusive  licenses for products  relating to
these  patents  to one of our  competitors.  If we are  unable  to  successfully
challenge  these patents,  we may be unable to produce  Aldurazyme in the United
States unless we can obtain a sub-license from the current licensee. The current
licensee  is not  required  to  grant  us  licenses  and  even if  licenses  are
available,  we may have to pay  substantial  license fees and  royalties,  which
could adversely affect our business and operating results.


Orphan Drug Status

As part of our  business  strategy,  and as a further  means of  protecting  our
intellectual  property,  we intend to develop certain 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  obtains  the first 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.

                                       15

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 any one of our drug products and we
are unable to otherwise  protect the product,  our competitors may then sell the
same drug to treat the same condition.

We  received  orphan  drug  designation  from  the  FDA for  Aldurazyme  for the
treatment of MPS-I in September  1997. In February 1999, we received orphan drug
designation from the FDA for rhASB for the treatment of MPS VI. In February 2001
we  received  orphan  drug  designation  from the  European  Community  for both
products.  Even though we have obtained orphan drug  designation for these drugs
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 that exclusivity would effectively protect the product from
competition.  Orphan  drug  designation  neither  shortens  the  development  or
regulatory  review time of a drug so designated nor gives the drug any advantage
in the FDA review or approval process.


Issues Relating to Our Joint Venture

We have entered into a joint  venture with Genzyme  Corporation  to assist us in
obtaining international  regulatory approval for Aldurazyme as well as marketing
and  commercializing  the product worldwide.  We are relying on Genzyme to apply
the expertise it has developed  through the launch and sale of Ceredase(tm)  and
Cerezyme(tm) enzymes for Gaucher disease, a rare genetic disease.  Because it is
our initial product,  our financial  results and market value are  substantially
dependent upon the development of Aldurazyme.

Genzyme may not devote the resources  necessary to successfully  gain regulatory
approvals  internationally  and to market  Aldurazyme  worldwide.  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.

If the joint  venture is  terminated,  one  party,  as  determined  by the joint
venture agreement,  must buy out the other partys interest in the joint venture
and will then own all rights to Aldurazyme. If Genzyme were obligated to buy out
our interest in the joint venture, Genzyme would be granted, exclusively, all of
the rights to Aldurazyme  and any related  intellectual  property and regulatory
approvals.  We would then  effectively  be unable to develop  and  commercialize
Aldurazyme.  If we were  obligated  to buy out  Genzymes  interest in the joint
venture, we would then be granted all of these rights to Aldurazyme exclusively.
While we could then  continue to develop  Aldurazyme,  that  development  may be
slowed because we would have to divert substantial  capital to buy out Genzyme's
interest  in the joint  venture  and would have to search  for a new  partner to
commercialize  the  product and to obtain  foreign  regulatory  approvals  or to
develop these capabilities ourselves.

Termination of the joint venture where 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 related
to the program and reduce the funds available to us for other product programs.


Complicated Manufacturing Process

Even once we have  successfully  developed  a product  and  obtained  regulatory
approval for its sale and use, there are still several  factors that could limit
or  prevent  its  commercial   viability  including  large  scale  manufacturing
complications, distribution and marketing, and market demand.

We have developed  approximately 41,200 square feet at our Novato facilities for
the  manufacturing  of Aldurazyme  and rhASB.  We expect that the  manufacturing
process of all of our new products,  including rhASB,  will require  significant
time and  resources  before  we can  begin  to  manufacture  them in  commercial
quantity with appropriate cost.

Except for Aldurazyme,  we have no experience  manufacturing  recombinant  human
enzymes in volumes that will be necessary to support commercial sales. The large
scale,  consistent  production  of our  enzymes is  complicated,  expensive  and
unpredictable  and may not yield the high quality and high purity  required with
acceptable quantity and costs. 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 became 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.

                                       16

If we do not achieve our manufacturing cost targets, we will have greater losses
in manufacturing  start-up phases and lower margins and reduced profitability in
commercial  production.  Even if we can  establish the  necessary  capacity,  we
cannot be certain  that  manufacturing  costs will be  commercially  reasonable,
especially if third-party reimbursement is substantially lower than expected.


Marketing and Pricing Issues

Our initial drug candidates target diseases with small patient populations. As a
result,  our prices  must be high enough to recover  our  development  costs and
achieve  profitability  and the patient  populations  must be able to afford the
prices of the treatments through insurance or otherwise. For example, two of our
initial drug products in genetic diseases, Aldurazyme and rhASB, target patients
with MPS-I and MPS VI,  respectively.  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  burns,   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 expenses.

The course of treatment  for  patients  with MPS-I using  Aldurazyme  and MPS VI
using rhASB 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 rhASB without  reimbursement  from  third-party
payers.

Third-party  payers,  such  as  government  or  private  health  care  insurers,
carefully  review  and  increasingly  challenge  the price  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.
Third-party  payers may not be willing to pay for the costs of our drugs and the
courses of treatment at  reimbursement  rates that will be enough to allow us to
profit from sales of our drugs.

We currently have no expertise obtaining reimbursement. We expect to rely on the
expertise of our partner Genzyme to obtain reimbursement for Aldurazyme. 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 affects the  profitability of drugs.  Current  government  regulations and
possible future legislation regarding health care may affect our future revenues
from sales of our drugs and may adversely affect our business and prospects.

                                       17

Item 3.  Quantitative and Qualitative Disclosure about Market Risk.


The  Companys  exposure to market risk for  changes in interest  rates  relates
primarily  to  the  Companys  investment  portfolio.  The  Company  places  its
investments  with high credit  issuers and by policy limits the amount of credit
exposure  to any one  issuer.  As stated in its  policy,  the  Company  seeks to
improve the safety and  likelihood  of  preservation  of its  invested  funds by
limiting   default  risk  and  market  risk.  The  Company  has  no  investments
denominated  in foreign  country  currencies  and  therefore  is not  subject to
foreign exchange risk.

The  Company  mitigates  default  risk  by  investing  in  high  credit  quality
securities  and by  positioning  its  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.

The  table  below  presents  the  carrying  value for the  Companys  investment
portfolio. The carrying value approximates fair value at June 30, 2001.


Investment portfolio:
                                                  Carrying value
                                                 (in $ thousands)

Cash and cash equivalents.............................. $ 18,967*
Short-term investments.................................   40,918**
                                                        --------
   Total............................................... $ 59,885
                                                        ========

*  32% invested in A1/P1 rated commercial paper for less than 90-days.
** 83% invested in A1/P1 rated  commercial paper and 17% in United States agency
   securities.

















                                       18


                           PART II. OTHER INFORMATION

Item 1.         Legal Proceedings.                               None.


Item 2.         Changes in Securities and Uses of Proceeds.

In May 2001,  we completed  two related  private  placements  of an aggregate of
4,869,533  shares of our common  stock and  warrants for the purchase of 752,427
shares our common stock to a select group of  institutional  investors,  each of
whom  certified that they are  "accredited  investors" as defined in Rule 501 of
Regulation  D  promulgated  under the  Securities  Act of 1933,  as amended.  In
exchange  for  the  issuance  of  these  securities,  we  received  total  gross
consideration  of $46.0  million.  All of the  warrants  are for a term of three
years and,  with the  exception of warrants  for the purchase of 22,000  shares,
which  have an  exercise  price of $9.45 per  share,  all the  warrants  have an
exercise  price of $13.10  per share.  The shares  were  issued  pursuant  to an
exemption  from  registration  as provided by Rule 506 of Regulation D under the
Securities  Act.  The shares are  appropriately  legended to  indicate  that the
shares  may not be  resold  unless  registered  under the  Securities  Act or an
exemption from registration is available for such sale.


Item 3.         Defaults upon Senior Securities.                 None.


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

At our Annual Meeting, held on May 24, 2001, our stockholders took the following
actions:

                (a) The following directors were elected to serve until the next
                    Annual Meeting:


                     Director Elected                   Vote For        Withheld

                     Fredric D. Price                 23,165,580         136,184
                     Grant W. Denison, Jr.            22,454,826         846,918
                     Ansbert S. Gadicke, M.D., Ph.D.  23,295,392           6,352
                     Erich Sager                      23,268,892          32,852
                     Gwynn R. Williams                23,269,292          32,452

                (b) Arthur  Andersen LLP was appointed as our auditors,  by a
                    vote of 23,270,222 shares in favor, 27,800 shares against
                    and 3,722 shares withheld.


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

                        None.


                (b)  Reports on Form 8-K.

                    On May 18,  2001,  we  filed a  Current  Report  on Form 8-K
                    regarding  the sale of 4,869,533  shares of our common stock
                    at $9.45 per share and the  issuance of warrants to purchase
                    730,427  shares of our common stock at an exercise  price of
                    $13.10 for a three year term in a private placement. We also
                    disclosed  the  issuance  of a warrant  to  purchase  22,000
                    shares of our common stock at an exercise price of $9.45 per
                    share to one of our financial  advisors for services related
                    to the  placement.

                    On June 25,  2001,  we filed a  Current  Report  on Form 8-K
                    regarding   our  filing  of  a  Clinical   Trial   Exemption
                    application with the Medicines  Control Agency in the United
                    Kingdom for  permission to conduct a human clinical trial of
                    Vibriolysin Topical in patients with serious burns.


                                       19


                                    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: August 13, 2001        By:
- ----------------------           --------------------------------------------
                                   Raymond W. Anderson
                                   Chief Financial Officer, Chief Operating
                                   Officer, Secretary and V.P. Finance and
                                   Administration (on behalf of registrant
                                   and as principal financial officer)








































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