OXIS INTERNATIONAL INC
10-Q, 1997-11-12
PHARMACEUTICAL PREPARATIONS
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC 20549
                                   FORM 10-Q


    X    Quarterly report pursuant toSection 13 or 15(d) of the Securities 
  -----  Exchange Act of   1934 for the quarterly period ended September 30, 
         1997.

         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 O-8092



                           OXIS INTERNATIONAL, INC.



                            A Delaware corporation
                 I.R.S. Employer Identification No. 94-1620407
                       6040 N. Cutter Circle, Suite 317
                              Portland, OR  97217
                          Telephone:  (503) 283-3911



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 preceding 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
                           -------      -------


At September 30, 1997, the issuer had outstanding the indicated number of shares
                         of common stock:  26,573,175
<PAGE>

                        PART I.  FINANCIAL INFORMATION

ITEM 1.   FINANCIAL STATEMENTS.

               CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
<TABLE>
<CAPTION>
 
                                             Three Months Ended           Nine Months Ended
                                                September 30                September 30
                                         --------------------------  ---------------------------
                                             1997          1996          1997          1996
                                         ------------  ------------  -----------   ------------
<S>                                      <C>           <C>           <C>           <C>
Revenues:
  Product sales                          $ 1,293,000   $ 1,396,000   $ 3,137,000    $ 3,933,000
  Royalties and license fees                 150,000         6,000       209,000         64,000
                                         -----------   -----------   -----------    -----------
     Total revenues                        1,443,000     1,402,000     3,346,000      3,997,000
 
Costs and expenses:
  Cost of sales                              904,000       967,000     2,148,000      2,544,000
  Research and development                 1,210,000     1,258,000     3,199,000      3,619,000
  Selling, general and administrative        717,000       621,000     2,049,000      2,247,000
                                         -----------   -----------   -----------    -----------
     Total costs and expenses              2,831,000     2,846,000     7,396,000      8,410,000
                                         -----------   -----------   -----------    -----------
Operating loss                            (1,388,000)   (1,444,000)   (4,050,000)    (4,413,000)
Interest income                               30,000        12,000        53,000         33,000
Interest expense                             (40,000)       (7,000)     (112,000)      (124,000)
                                         -----------   -----------   -----------    -----------
Net loss                                 $(1,398,000)  $(1,439,000)  $(4,109,000)   $(4,504,000)
                                         ===========   ===========   ===========    ===========
Net loss per share                             $(.05)        $(.11)        $(.20)         $(.36)
                                         ===========   ===========   ===========    ===========
Weighted average number of
  shares used in computation              26,306,840    13,301,037    20,144,549     12,546,092
                                         ===========   ===========   ===========    ===========
 
</TABLE>

                                       1
<PAGE>
 
<TABLE>
<CAPTION>
                                     CONSOLIDATED BALANCE SHEETS
 
                                      September 30,                December 31, 
                                          1997                        1996
                                      (Unaudited)
<S>                                  <C>                          <C>
ASSETS
Current assets:
 Cash and cash equivalents            $2,752,000                   $  422,000
 Accounts receivable                     882,000                      861,000
 Inventories                             733,000                      591,000
 Prepaid and other                       373,000                      191,000
                                      ----------                   ----------
  Total current assets                 4,740,000                    2,065,000
                                                                
Property and equipment, net            1,214,000                    1,327,000
                                                                
Assets under capital leases, net              --                      309,000
                                                                
Technology for developed products                               
 and custom assays, net                3,244,000                    3,782,000
 
Other assets                             255,000                      514,000
                                      ----------                   ----------
 
    Total assets                      $9,453,000                   $7,997,000
                                      ==========                   ==========
</TABLE>

                                       2
<PAGE>
 
<TABLE>
<CAPTION>
                         CONSOLIDATED BALANCE SHEETS

 
                                                          September 30,      December 31,
                                                              1997             1996
                                                          (Unaudited)                   
<S>                                                      <C>             <C>  
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
 Notes payable                                            $  1,148,000   $  1,221,000
 Accounts payable                                            1,348,000      1,386,000
 Customer deposits                                             116,000        132,000
 Accrued liabilities                                           579,000        655,000
 Current portion of long-term obligations                        9,000         76,000
                                                          ------------   ------------
   Total current liabilities                                 3,200,000      3,470,000
                                                                      
Other liabilities                                                   --          2,000
                                                                      
Shareholders' equity:                                                 
 Preferred stock - $.01 par value; 15,000,000 shares                  
  authorized:                                                         
   Series B - 642,583 shares issued and outstanding                   
    (liquidation preference of $1,500,000)                       6,000          6,000
   Series C - 1,021,697 shares issued and                             
    outstanding at September 30, 1997                           10,000         17,000
   Series D - 1,150 shares issued and                                 
    outstanding at September 30, 1997                               --             --
   Series E - no shares outstanding                                   
    at September 30, 1997                                           --             --
 Common stock - $.50 par value; 50,000,000 shares                     
  authorized; 26,573,175 shares issued and outstanding                
  at September 30, 1997                                     13,287,000      6,895,000
 Additional paid in capital                                 30,321,000     30,706,000
 Accumulated deficit                                       (37,132,000)   (33,023,000)
 Accumulated translation adjustments                          (239,000)       (76,000)
                                                          ------------   ------------
                                                                      
   Total shareholders' equity                                6,253,000      4,525,000
                                                          ------------   ------------
                                                                      
Total liabilities and shareholders' equity                $  9,453,000   $  7,997,000
                                                          ============   ============
</TABLE>

                                       3
<PAGE>
 
<TABLE>
<CAPTION>
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (UNAUDITED)
 
                                                                  Nine Months Ended
                                                                     September 30,
                                                             --------------------------  
                                                                  1997          1996
<S>                                                          <C>           <C>
Cash flows from operating activities:
 Net loss                                                     $(4,109,000)  $(4,504,000)
 Adjustments to reconcile net loss to cash provided
  by (used for) operating activities:
   Depreciation and amortization                                  949,000     1,013,000
   Changes in assets and liabilities:
    Accounts receivable                                           (39,000)     (216,000)
    Inventories                                                  (148,000)      348,000
    Other current assets                                         (183,000)       56,000
    Accounts payable                                                9,000       430,000
    Customer deposits                                             (16,000)        6,000
    Accrued liabilities                                           (41,000)     (141,000)
                                                              -----------   -----------
 
     Net cash used for operating activities                    (3,578,000)   (3,008,000)
       
Cash flows from investing activities:
 Purchases of equipment                                           (85,000)      (54,000)
 Other, net                                                       (14,000)       55,000
                                                              -----------   -----------
 
     Net cash provided by (used for) investing activities         (99,000)        1,000
 
Cash flows from financing activities:
 Proceeds from issuance of short-term notes                       872,000        65,000
 Proceeds from issuance of stock, net of related cost           6,215,000     3,181,000
 Repayment of short-term borrowings                              (946,000)     (627,000)
 Repayment of long-term debt and capital lease obligations        (63,000)     (199,000)
                                                              -----------   -----------
 
     Net cash provided by financing activities                  6,078,000     2,420,000
 
Effect of exchange rate changes on cash                           (71,000)           --
                                                              -----------   -----------
 
Net increase (decrease) in cash and cash equivalents            2,330,000      (587,000)
 
Cash and cash equivalents - beginning of period                   422,000       727,000
                                                              -----------   -----------
 
Cash and cash equivalents - end of period                     $ 2,752,000   $   140,000
                                                              ===========   ===========
</TABLE>

                                       4
<PAGE>
 
             CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.  FINANCIAL STATEMENTS AND CONDENSED NOTES

  The unaudited consolidated financial statements, which have been prepared in
  accordance with the instructions to Form 10-Q, do not include all of the
  information and notes required by generally accepted accounting principles for
  complete financial statements.  All adjustments considered necessary by
  management for a fair presentation have been included.  Operating results for
  interim periods are not necessarily indicative of the results that may be
  expected for the full year.

  An annual report (Form 10-K) has been filed with the Securities and Exchange
  Commission ("Commission") for the year ended December 31, 1996.  That report
  contains, among other information, a description of the Company's business,
  audited financial statements, notes to the financial statements, the report of
  the independent auditors and management's discussion and analysis of results
  of operations and financial condition.  Readers of this report are presumed to
  be familiar with that annual report.

  NEW ACCOUNTING PRONOUNCEMENTS ISSUED BUT NOT ADOPTED

  In June 1997, the Financial Accounting Standards Board (FASB) issued Statement
  of Financial Accounting Standards (SFAS) No. 130, Reporting Comprehensive
  Income.  SFAS No. 130 establishes standards for reporting and display of
  comprehensive income and its components (revenues, expenses, gains, and
  losses) in a full set of general-purpose financial statements.  This Statement
  requires that all items that are required to be recognized under accounting
  standards as components of comprehensive income be reported in a financial
  statement that is displayed with the same prominence as other financial
  statements.  This Statement is effective for fiscal years beginning after
  December 15, 1997.

  In June 1997, FASB issued SFAS No. 131, Disclosures about Segments of an
  Enterprise and Related Information.  SFAS No. 131 establishes standards for
  the way that public enterprises report information about operating segments in
  annual financial statements and requires that those enterprises report
  selected information about operating segments in interim financial reports
  issued to shareholders.  It also establishes standards for related disclosures
  about products and services, geographic areas, and major customers.  This
  Statement is effective for fiscal years beginning after December 15, 1997.
  The Company has not completed its analysis of which segments it will report
  on.

                                       5
<PAGE>
 
  2.  INVENTORIES

     Inventories are stated at the lower of cost or market.  Cost has been
     determined by using the first-in, first-out and specific identification
     methods.  Inventories at September 30, 1997 and December 31, 1996,
     consisted of the following:
<TABLE>
<CAPTION>
 
                             September 30,  December 31,
                                 1997           1996
<S>                          <C>            <C>
 
      Raw materials           $161,000      $148,000
      Work in process          440,000       200,000
      Finished goods           132,000       243,000
                              --------      --------
 
      Total                   $733,000      $591,000
                              ========      ========
 
</TABLE>

  3. NOTES PAYABLE

     During March and April 1997 the Company borrowed $808,000 from certain
     shareholders pursuant to issuance of  short-term unsecured promissory notes
     with a 3% origination fee and bearing interest at an annual rate of 8%.
     All of the notes were due in May 1997.  The majority of the noteholders are
     indebted to the Company under the terms of a separate indemnification
     agreement.  Payment of certain of these notes has been deferred pending the
     outcome of ongoing discussions with representatives of the noteholders.


  4. SHAREHOLDERS' EQUITY

     On May 20, 1997, the Company issued 9,000,000 shares of its common stock
     pursuant to an underwriting agreement with certain underwriters in France.
     The underwriters purchased the stock at a price of 4.60 French francs per
     share (an aggregate of $7,328,000).  The newly-issued shares have been
     listed on the French stock market, Le Nouveau Marche, and on the NASDAQ
     National Market System.

     During the first nine months of 1997, 625,460 shares of Series C Preferred
     Stock, 500 shares of Series D Preferred Stock and 2,200 shares of Series E
     Preferred Stock were converted into an aggregate of 3,712,384 shares of
     common stock.

                                       6
<PAGE>
 
  5. STOCK OPTIONS

     The Company has a stock incentive plan under which 4,200,000 shares of the
     Company's common stock are reserved for issuance.  The plan permits
     granting stock options to acquire shares of the Company's common stock,
     awarding stock bonuses of the Company's common stock, and granting stock
     appreciation rights.  During the nine months ended September 30, 1997,
     options to purchase 734,800 shares at an exercise price of $.53125 have
     been issued under the plan.


  6. PENDING ACQUISITION

     In July 1997 the Company entered into a letter of intent to acquire 100% of
     the capital stock of Innovative Medical Systems Corporation ("IMS").  IMS,
     located near Philadelphia, Pennsylvania, is a privately-held company which
     specializes in the development, engineering and manufacture of instruments
     for the biomedical industry.  The acquisition is subject to negotiating and
     entering into a definitive purchase agreement, the approval of the boards
     of directors of OXIS and IMS, and the satisfactory completion of OXIS' due
     diligence investigation.

  7. EARNINGS PER SHARE

     In February 1997, the Financial Accounting Standards Board issued SFAS No.
     128, "Earnings per Share."  SFAS 128 changes the standards for computing
     and presenting earnings per share ("EPS") and supersedes APB Opinion No.
     15, "Earnings per Share."  SFAS 128 simplifies the standards for computing
     earnings per share and makes them comparable to international EPS
     standards.  It replaces the presentation of primary EPS with a presentation
     of basic EPS.  It also requires dual presentation of basic and diluted EPS
     on the face of the income statement for all entities with complex capital
     structures and requires a reconciliation of the numerator and denominator
     of the basic EPS computation to the numerator and denominator of the
     diluted EPS computation.  SFAS 128 is effective for financial statements
     issued for periods ended after December 15, 1997, including interim
     periods; earlier application is not permitted.  This Statement requires
     restatement of all prior-period EPS data presented.  Earnings per share
     reported for the nine-month periods ended September 30, 1996 and 1997 are
     not affected as a result of adopting SFAS 128 due to the Company's losses.

                                       7
<PAGE>
 
  ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
           RESULTS OF OPERATIONS.

  FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES

     The Company's working capital increased during the first nine months of
     1997 from a deficit of $1,405,000 at December 31, 1996 to positive working
     capital of $1,540,000 at September 30, 1997.  This increase in the
     Company's working capital resulted primarily from the issuance of common
     stock (net proceeds of $6,215,000), offset by the effect of the net loss
     for the first nine months of 1997 ($4,109,000 less non-cash charges of
     $949,000).

     Cash and cash equivalents increased from $422,000 at December 31, 1996 to
     $2,752,000 at September 30, 1997.

     The Company expects to continue to report losses in 1997 as the level of
     expenses is expected to continue to exceed revenues.  To continue
     operations in accordance with its current plans, the Company must raise
     additional capital before the end of the first quarter of 1998.  Although
     the Company has continued to raise additional funds through private
     placements and a public offering (described below), it cannot predict the
     sources, terms, amount, form, and/or availability of additional capital to
     fund its operations to the end of the current year.  Failure to raise such
     additional capital would cause the Company to severely curtail or cease
     operations.

     The Company can give no assurances as to when and if its revenues will
     exceed its expenses.  While the Company believes that its new products and
     technologies show considerable promise, its ability to realize significant
     revenues therefrom is dependent upon the Company's success in developing
     business alliances with biotechnology and/or pharmaceutical companies that
     have the required resources to develop and market certain of these
     products.  There is no assurance that the Company's effort to develop such
     business alliances will be successful.

     During March and April 1997, the Company raised $808,000 through the
     issuance of short-term notes to certain of its shareholders.

     On May 20, 1997, the Company issued 9,000,000 shares of its common stock
     pursuant to an underwriting agreement with certain underwriters in France.
     The underwriters purchased the stock at a price of 4.60 French francs per
     share (an aggregate of $7,328,000).  The newly-issued shares have been
     listed on the French stock market, Le Nouveau Marche, and on the NASDAQ
     National Market System.

                                       8
<PAGE>
 
  RESULTS OF OPERATIONS - THREE MONTHS ENDED SEPTEMBER 30, 1997 COMPARED WITH
                     THREE MONTHS ENDED SEPTEMBER 30, 1996


  REVENUES

     The Company's product sales for the quarters ended September 30, 1997 and
     1996 were as follows:
<TABLE>
<CAPTION>
 
                                                                 1997        1996
<S>                                                          <C>         <C>
 
                    Diagnostic and research assays           $  557,000  $  552,000
 
                    Bovine superoxide dismutase (bSOD)
                     for research and human use                 582,000     688,000
 
                    Palosein(R) (bSOD for veterinary use)        84,000     156,000
 
                    Other                                        70,000          --
                                                             ----------  ----------
 
                                                             $1,293,000  $1,396,000
                                                             ==========  ==========
</TABLE>

     Sales of bulk bSOD for research and human use decreased by $106,000 in the
     third quarter of 1997 as compared to the third quarter of 1996.  The
     quantity of bSOD sold in the third quarter of 1997 was slightly higher than
     in the third quarter of 1996.  However, the price in 1997 was five percent
     lower and the Dutch guilder (the currency in which the Company makes its
     bulk bSOD sales) declined in value compared to the U.S. dollar by
     approximately 15%, resulting in a net decrease in bSOD sales in the third
     quarter of 1997 as compared to the third quarter of 1996.  The Company's
     sales of bulk bSOD in 1996 and 1997 have been almost entirely to the
     Company's Spanish licensee.  Future sales of bulk bSOD continue to be
     largely dependent on the needs of the Company's Spanish licensee.  The
     Company expects its sales for 1997 to the Spanish licensee to be less than
     those for 1996.  The Company's sales of bulk bSOD beyond 1997 are uncertain
     and difficult to predict and no assurances can be given with respect
     thereto.

     Palosein(R) sales, which are primarily to distributors, declined due to a
     temporary stock shortage at the end of the quarter, and to a lesser extent
     to the timing of distributors' orders.

     The Company realized license fee revenue of $150,000 in the third quarter
     of 1997 from an agreement to license its patented polyethylene glycol
     technology to Enzon, Inc. on a non-exclusive basis.

                                       9
<PAGE>
 
  COSTS AND EXPENSES

     Cost of sales was 69% of product sales for the third quarter of 1996 and
     70% for the third quarter of 1997.  Cost of sales in both the third quarter
     of 1996 and the third quarter of 1997 include approximately $180,000 in
     amortization of purchase adjustments relating to 1994 business
     acquisitions.  Excluding such amortization the cost of sales for the third
     quarter of both 1996 and 1997 was approximately 56% of sales.

     Research and development expenses decreased from $1,258,000 in the third
     quarter of 1996 to $1,210,000 in the third quarter of 1997.  The decrease
     in research and development expenses resulted from cost reductions in the
     third quarter of 1997 compared to the third quarter of 1996 of $220,000 in
     research and development costs of the Company's French subsidiary.  This
     decrease in expenses was partially offset by increases of $90,000 in other
     research and development costs in the U.S. and $82,000 in expenses for
     outside development contracts primarily related to preclinical development
     work and the initiation of clinical trials on the lead molecule from the
     Company's glutathione peroxidase mimics program.

     Selling, general and administrative expenses increased from $621,000 in the
     third quarter of 1996 to $717,000 in the third quarter of 1997.  The
     increase is primarily due to two factors:  (1) an increase in U.S.
     personnel costs of $57,000; and (2) salary, benefits and travel expenses of
     $48,000 for a sales manager in Europe hired in the fourth quarter of 1996.


  INTEREST INCOME AND EXPENSE

     Interest income increased by $18,000 in the third quarter of 1997 as
     compared with the third quarter of 1996, primarily due to an increase in
     funds available for short-term investments following the sale of common
     stock in May 1997.

     Interest expense increased by $33,000 in the third quarter of 1997 as
     compared with the third quarter of 1996, due to an increase in short-term
     notes outstanding.


  NET LOSS

     The Company continued to experience losses in the third quarter of 1997.
     The third quarter 1997 loss of $1,398,000 ($.05 per share) was $142,000
     less than the $1,439,000 ($.11 per share) loss for the third quarter of
     1996.  The reduction in the net loss is primarily due to the decreased
     research and development expenses and increase in royalties and license
     fees, offset by a decline in gross margin from product sales and an
     increase in selling, general and administrative expenses.  The decrease in
     net loss per share is primarily due to the increase in the weighted average
     number of shares outstanding.

                                       10
<PAGE>
 
     The Company plans to continue to invest in research and development
     activities and incur marketing, sales and administrative expenses in
     amounts greater than its anticipated near-term product margins, and, as a
     result, expects to incur a substantial net loss for 1997.



         RESULTS OF OPERATIONS - NINE MONTHS ENDED SEPTEMBER 30, 1997 
              COMPARED WITH NINE MONTHS ENDED SEPTEMBER 30, 1996


  REVENUES

     The Company's product sales for the nine-month periods ended September 30,
     1997 and 1996 were as follows:
<TABLE>
<CAPTION>
 
                                                                1997        1996
<S>                                                          <C>         <C>
 
                    Diagnostic and research assays           $1,735,000  $1,714,000
 
                    Bovine superoxide dismutase (bSOD)
                     for research and human use                 997,000   1,922,000
 
                    Palosein(R) (bSOD for veterinary use)       314,000     297,000
 
                    Other                                        91,000          --
                                                             ----------  ----------
 
                                                             $3,137,000  $3,933,000
                                                             ==========  ==========
</TABLE>

     Sales of bSOD in 1996 and 1997 have been almost entirely to the Company's
     Spanish licensee.  The reduction in bSOD sales for the first nine months of
     1997 compared to 1996 is primarily the result of a  reduction in volume of
     product delivered to the Spanish licensee.  A shipment of bSOD is scheduled
     during the fourth quarter of 1997 which is expected to result in total bSOD
     sales for 1997 to be approximately 80% of 1996 bSOD sales.


  COSTS AND EXPENSES

     Cost of sales as a percent of product sales increased from 65% in the first
     nine months of 1996 to 68% in the first nine months of 1997.  Cost of sales
     in both the first nine months of 1996 and 1997 include amortization of
     purchase adjustments relating to 1994 business acquisitions.  Excluding
     such amortization, cost of sales would have been approximately 51% of
     product sales for the first half of both 1996 and 1997.

                                       11
<PAGE>
 
     Research and development expenses decreased by $420,000 from $3,619,000 for
     the first nine months of 1996 to $3,199,000 for the first nine months of
     1997.  The decrease in research and development expenses resulted from cost
     reductions in the first nine months of 1997 compared to the first nine
     months of 1996 of $395,000 in costs of the Company's French subsidiary, and
     $152,000 in internal research and development costs in the U.S.  Outside
     development contract costs, primarily relating to the glutathione
     peroxidase mimics development program, increased by $127,000.

     Selling, general and administrative expenses decreased from $2,247,000 for
     the first nine months of 1996 to $2,049,000 for the first nine months of
     1997, a decrease of $198,000.  The decrease was primarily due to a
     reduction of $275,000 in general and administrative expenses of the
     Company's French subsidiary, which was partially offset by salary, benefits
     and travel expenses of $139,000 for a sales manager in Europe hired in the
     fourth quarter of 1996.


  INTEREST INCOME

     Interest income increased by $20,000 in the first nine months of 1997 as
     compared to the first nine months of 1996, due to an increase in funds
     available for investments following the sale of common stock in May 1997.


  NET LOSS

     The Company's loss for the first nine months of 1997 was $4,109,000 ($.20
     per share) compared to a loss of $4,504,000 ($.36 per share) for the first
     nine months of 1996.  The decrease in the net loss is primarily due to
     reductions in research and development expenses ($420,000) and selling
     general and administrative expenses ($198,000) and an increase in royalties
     and license fees ($145,000), offset by reduced profit margins on product
     sales ($400,000).  The decrease in net loss per share is primarily due to
     the increase in the weighted average number of shares outstanding.

                          --------------------------

Certain of the matters discussed in this report are forward-looking statements 
that involve risks and uncertainties, including the timely development and 
market acceptance of new products, the impact of competitive products and 
pricing, economic conditions, and other risks. These factors could cause actual 
results to differ materially from those described in any forward-looking 
statements.
<PAGE>
 
                          PART II.  OTHER INFORMATION

  ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.

     (a) Exhibits - See Exhibit Index on page 14.



                                   SIGNATURE

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

                                    OXIS International, Inc.


  November 10, 1997                 By   s/Anna D. Barker
                                       ------------------
                                       Anna D. Barker, Ph.D.
                                       President and Chief Executive Officer


  November 10, 1997                 By   s/Jon S. Pitcher
                                       ------------------
                                       Jon S. Pitcher
                                       Chief Financial Officer

                                       13
<PAGE>
 
                                 EXHIBIT INDEX

  Exhibit                                                            Page
  Number            Description of Document                         Number


   10(a)            Non-Exclusive License Agreement between
                    OXIS International, Inc. and Enzon, Inc.
                    dated July 29, 1997

  27(a)             Financial Data Schedule

                                       14

<PAGE>
 
                                                                   Exhibit 10(a)
                        NON-EXCLUSIVE LICENSE AGREEMENT


THIS AGREEMENT is entered into as of the 29th day of July, 1997 (the "Effective
Date"), by and between OXIS International, Inc., a corporation organized under
the laws of Delaware ("OXIS") and ENZON, Inc., a corporation organized under the
laws of ('Licensee") having an office located at 20 Kingsbridge Road,
Piscataway, New Jersey 08854-3998.

0.  BACKGROUND

          OXIS is the owner of certain patents as further described herein (the
"OXIS Patents").  Licensee seeks to obtain a non-exclusive license to practice
and use the OXIS Patents, each according to the terms contained herein.

          Now, Therefore, in consideration of the foregoing and the covenants
and premises contained in this Agreement, the parties agree as follows:

1.  DEFINITIONS
          As used herein, capitalized terms will have the meanings set forth
below:

          1.1   "AFFILIATE" means any person or entity directly or indirectly
controlling, controlled by or under common control with, either party to this
Agreement. For purposes of the preceding definition, "control" means the direct
or indirect ownership of over fifty percent (50%) of the outstanding voting
securities of a person or entity, or the right to receive over fifty percent
(50%) of the profits or earnings of a person or entity, or the ability to
control decisions of a person or entity.

          1.2    "NET SALES" means the amounts actually received for sales of
Licensed Products by or on behalf of Licensee and its Affiliates and
sublicensees of rights with respect to Licensed Products or for otherwise making
such Licensed Products available to others without sale or other disposition,
whether invoiced or not, less (i) any returns and allowances actually granted,
(ii) packing costs, insurance costs and freight out, (iii) taxes (excluding
income taxes) or excise duties imposed on the transaction (if separately
invoiced), and (iv) wholesaler quantity and cash discounts in amounts customary
in the trade. No deductions shall be made for commissions paid to individuals,
whether they be with independent sales agencies or regularly employed, or for
the cost of collections. On sales of such Licensed Products by Licensee to its
Affiliates or on sales 
<PAGE>
 
made in other than an arm's-length transaction, which are not intended for
resale to third parties, the value of the Net Sales attributed to such a
transaction shall be that which would have been received in an arm's-length
transaction, based on sales of like quantity and quality products on or about
the time of such transaction.

          1.3   "LICENSED PRODUCT(S)" means any low molecular weight
polyethelyene glycol material used for human therapeutics which, in the course
of manufacture, use, or sale would, in the absence of this license, infringe one
or more Valid Claims of one or more OXIS Patents.

          1.4   "OXIS PATENTS" means the U.S. patents listed on Exhibit A
hereto, and any reissues, extensions, substitutions, confirmations, re-
registrations, re-examinations, continuations, divisionals or continuations-in-
part patent applications (but excluding any improvements covered thereby) of the
foregoing patents, as well as all foreign counterparts or equivalents, including
patents and pending applications, of the above and any other patents covered by
the warranty stated in Article 9.2.

          1.5   "VALID CLAIMS" means a claim of a duly issued patent which has
not lapsed or become abandoned or been invalidated by a final judgment of a
court of competent jurisdiction from which no further appeal has or can be
taken.

2.0       GRANT

          2.1   LICENSE.  OXIS grants to Licensee a non-exclusive, royalty-
bearing, world-wide license to make, have made, use and sell up to ten (10)
Licensed Products.

          2.1   RIGHT TO SUBLICENSE.  Licensee shall have the right to grant a
non-exclusive, royalty-bearing, world-wide license to make, have made, use and
sell Licensed Products, provided that Licensee grants only one sublicense per
Licensed Product and that the sublicense is not one of the parties  already in
discussions with OXIS listed in Exhibit B.  Upon granting a sublicense
hereunder, Licensee shall promptly provide the name and address of sublicensee
and a description of the Licensed Product.

                                       2
<PAGE>
 
3.0  COMPENSATION

          3.1   LICENSE FEE.  In consideration of the rights granted herein,
Licensee shall pay to OXIS upon execution of this Agreement a non-refundable,
license fee of One Hundred and Fifty Thousand Dollars ($150,000).  This fee is
creditable against future royalties earned during the term of this Agreement.

          3.2   ANNUAL MAINTENANCE FEES.  Following the date of this Agreement
and until this Agreement expires or is terminated under Section 6.2, Licensee
shall pay to OXIS a non-refundable annual maintenance fee of Fifty Thousand
Dollars ($50,000) on or before the first day of each calendar year following
execution of this Agreement.  Each annual fee is creditable against royalties
earned during the calendar year following payment of such fee.

          3.3   EARNED ROYALTIES.  Licensee shall pay to OXIS an earned royalty
equal to two percent (2%) of the Net Sales of Licensed Products sold by
Licensee, its Affiliates or its sublicensees.

          3.4   SUBLICENSE FEES. Licensee shall pay to OXIS a fee of One Hundred
and Twenty-Five Thousand Dollars ($125,000) for each sublicense of a Licensed
Product granted hereunder. Such payment is due within twenty (20) days after
execution of the sublicense agreement or the sale of a Licensed Product pursuant
to such sublicense, whichever is sooner. Sublicense fees are not creditable
against earned royalties.

4.0   PAYMENT TERMS

          4.1   ACCRUAL; REPORTING. Royalty payments due under this Agreement
shall accrue on a calendar quarter basis and Licensee shall pay to OXIS all such
royalty payments due under this Agreement within sixty (60) days of the end of
each calendar quarter. Each payment shall be accompanied by a report summarizing
the relevant sales of the Products and royalty payment due thereon, including a
description of any offsets or credits deducted, in sufficient detail to permit
confirmation of the accuracy of the payment made. In the event that any payment
due hereunder is not made when due, the payment shall accrue interest beginning
on the first day following the due date at the rate of 1.5% per month or, if
less, the maximum rate permissible under Oregon law.

                                       3
<PAGE>
 
          4.2   RECORDS. During the term of this Agreement, Licensee shall keep
full and accurate books and records setting forth, for products on which
payments are due, gross sales, all deductions allowed in arriving at Net Sales
and any other information necessary and in sufficient detail to allow the
calculation of the amounts to be paid hereunder. During the term of this
Agreement and for a period of five (5) years thereafter, Licensee shall permit
OXIS, by independent certified public accountants selected by OXIS, to examine
Licensee's relevant books and records at any reasonable time, within five (5)
years of the payment of such royalties. If it is determined that there was an
underpayment of royalties or other amounts due to OXIS of five percent (5%) or
more, without prejudice to any other rights OXIS may have, Licensee shall
promptly reimburse OXIS for the balance of the royalties or other amounts due
and shall also reimburse OXIS for the cost of such verification examination.

5.0    PATENT MATTERS

          5.1   PATENT PROSECUTION AND MAINTENANCE. OXIS shall be solely
responsible for the prosecution and maintenance of the OXIS Patents at its
expense.

          5.2   PATENT INFRINGEMENT. If Licensee becomes aware of any actual or
threatened infringement of any OXIS Patent, Licensee will notify OXIS in writing
promptly after learning of such infringement. OXIS shall have the sole right
(but not the obligation) to bring and control, at its own expense, any
infringement action against any person or entity infringing the OXIS Patents.
Licensee will reasonably assist OXIS and cooperate in any litigation at OXIS'
request and expense. This Section 5.2 shall survive the termination of this
Agreement.

6.0    TERM AND TERMINATION.

          6.1   TERM. This Agreement will commence as of the Effective Date and,
unless sooner terminated as provided hereunder, will expire on a country-by-
country basis, upon the expiration of the last to expire patent of the OXIS
Patents licensed hereunder in such country.

          6.2   TERMINATION.
                
                (a) This Agreement may be terminated by either party upon sixty
(60) days written notice (i) upon the bankruptcy, insolvency, dissolution or
winding up of Licensee (other than dissolution or winding up for the purposes of
reconstruction or amalgamation); or (ii) upon 

                                       4
<PAGE>
 
or after the breach of any material provision of this Agreement by Licensee if
Licensee has not cured such breach within the sixty (60) day period following
written notice of termination by OXIS.

          (b) This Agreement may be terminated by Licensee upon ninety (90) days
written notice to OXIS.

          (c) Upon termination of the Agreement under this Section 6.2,
royalties due pursuant to Section 3.3 on any sales of Products discovered prior
to the date of such termination or deletion (and the payment terms with respect
thereto under Article 4) will survive the termination of this Agreement.

          6.3   OBLIGATIONS UPON TERMINATION. Upon any termination of this
Agreement, all rights granted by OXIS to Licensee hereunder shall terminate and
revert to OXIS. Without limiting any remedies otherwise available to the
terminating party, termination of this Agreement pursuant to this Article 6 will
not relieve Licensee from any amounts owing to OXIS at the time of termination
and will not terminate any rights or obligations arising and existing prior to
or upon termination of this Agreement.

7.0       INDEMNIFICATION

          7.1   INDEMNIFICATION. Licensee agrees to indemnify, hold harmless and
defend OXIS, its officers, directors, employees and agents, from and against any
and all claims, suits, losses, damages, costs, fees and expenses (collectively,
"Claims") resulting from or arising out of the development, manufacture,
storage, sale or other distribution or use of Licensed Products, the exercise of
rights granted hereunder, or the negligence or willful misconduct of Licensee in
its performance of its obligations under this Agreement.

          7.2   SURVIVAL. This Article 7 shall survive the termination or
expiration of this Agreement .

8.0       LIMITATION OF LIABILITY

          8.1 WAIVER OF CONSEQUENTIAL DAMAGES. IN NO EVENT WILL OXIS BE LIABLE
TO LICENSEE OR ITS AFFILIATES OR ANY SUBLICENSEE OF RIGHTS TO ANY 

                                       5
<PAGE>
 
PROFITS, LOST SAVINGS, OR OTHER INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR
FOR ANY CLAIM BY ANY OTHER PARTY.

     8.2  DISCLAIMER OF WARRANTIES.  EXCEPT AS EXPRESSLY SET FORTH IN THIS
AGREEMENT, OXIS MAKES NO REPRESENTATION OR WARRANTY OF ANY KIND.  OXIS HEREBY
EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES OF ANY KIND OR NATURE, WHETHER
EXPRESS OR IMPLIED, RELATING TO THE OXIS PATENTS, INCLUDING ANY EXPRESS OR
IMPLIED WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR
THAT THE PRACTICE OF THE OXIS PATENTS, OR THE MANUFACTURE, USE OR SALE OF A
PRODUCT DISCOVERED OR IDENTIFIED THROUGH THE USE OF THE OXIS PATENTS, WILL NOT
INFRINGE ANY PATENT, COPYRIGHT, TRADEMARK, OR OTHER RIGHTS OF THIRD PARTIES.
WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, OXIS EXPRESSLY DOES NOT
WARRANT THE ACCURACY, SAFETY, OR USEFULNESS FOR ANY PURPOSE, OR THE TECHNOLOGY
COVERED UNDER THE OXIS PATENTS.  NOTHING CONTAINED IN THIS AGREEMENT SHALL BE
CONSTRUED AS EITHER A WARRANTY OF REPRESENTATION BY OXIS AS TO THE VALIDITY OR
SCOPE OF ANY OXIS PATENTS.  OXIS DOES NOT ASSUME ANY LIABILITY IN RESPECT OF ANY
INFRINGEMENT OF ANY PATENT OR OTHER RIGHT OF THIRD PARTIES DUE TO THE ACTIVITIES
OF LICENSEE UNDER THIS AGREEMENT.

     8.3  SURVIVAL.  This Article 8 shall survive the termination or expiration
of this Agreement.

9.0  REPRESENTATIONS AND WARRANTIES

     9.1  MUTUAL REPRESENTATIONS AND WARRANTIES.  Each party hereby represents
and warrants:

          9.1.1  CORPORATE POWER.  Such party is duly organized and validly
     existing and in good standing under the laws of the state of its
     incorporation and has all requisite corporate power and authority to enter
     into this Agreement and to carry out the provisions hereof.

                                       6
<PAGE>
 
          9.1.2.  DUE AUTHORIZATION.  Such party is duly authorized to execute
     and deliver this Agreement and to perform its obligations hereunder.

          9.1.3.  BINDING AGREEMENT.  This Agreement is a legal and valid
     obligation binding upon it and enforceable in accordance with its terms.
     The execution, delivery and performance of this Agreement by such party
     does not conflict with any agreement, instrument or understanding, oral or
     written, to which it is a party or by which is may be bound, not violate
     any law or regulation of any court, governmental body or administrative or
     other agency having jurisdiction over it.

     9.2  OXIS PATENTS.  OXIS represents and warrants that the OXIS Patents
listed in Exhibit A are all the U.S. patents OXIS owns or has rights to as of
the Effective Date of this Agreement, that, but for this Agreement would be
infringed by the making, using or selling of Licensed Products.  OXIS further
represents and warrants that it will update Exhibit A to include any reissues,
extensions, substitutions, confirmations, re-registrations, re-examinations,
continuations, divisionals or continuations-in-part patent applications of the
foregoing patents which issue during the terms of this Agreement after the
Effective Date.

10.  GENERAL PROVISIONS

     10.1 RELATIONSHIP OF THE PARTIES.  Neither party is, nor will be deemed to
be, an agent or legal representative of the other party for any purpose.
Neither party will be entitled to enter into any contracts, incur any debts or
make any commitments in the name of or on behalf of the other party, and neither
party will be entitled to pledge the credit of the other party in any way or
hold itself out as having authority to do so.

     10.2 COMPLIANCE WITH LAWS.  Licensee shall use its best efforts to comply
with all applicable laws, rules and regulations pertaining to the development,
testing, manufacture, marketing and import or export of the Licensed Products.

     10.3 NON-ASSIGNMENT.  Licensee shall not assign this Agreement, in whole or
in part, without the prior written consent of OXIS, except such consent shall
not required in connection with Licensee's sale of the entire business to which
this Agreement pertains.

     10.4 DIVISIBILITY.  If any provision of this Agreement is found to be
prohibited by law and invalid, or for any other reason if any provision is held
to be unenforceable, in whole or in 

                                       7
<PAGE>
 
part, such provision shall be ineffective to the extent of the prohibition or
unenforceability without invalidating or having any other adverse effect upon
any other provision of this Agreement.

     10.5 ENTIRE AGREEMENT.  This Agreement, including the documents and the
instruments referred to herein, constitutes the entire agreement between the
parties relating to its subject matter and supersedes all prior or
contemporaneous negotiations or agreements, whether oral or written, relating to
the subject matter hereof.  No extension, modification or amendment of this
Agreement shall be binding upon a party unless such extension, modification or
amendment is set forth in a written instrument, which is executed and delivered
on behalf of such party.

     10.6 GOVERNING LAW.  This Agreement shall be governed by and construed in
accordance with the substantive law of the State of Oregon, without giving
effect to any conflicts or choice of laws principles which otherwise might be
applicable.

     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement,
including the Exhibits attached hereto and incorporated herein by reference, as
of the date first written above.

OXIS INTERNATIONAL, INC.                 ENZON, INC.

By: ________________________             By: _________________________

Name: ______________________             Name: _______________________
 
Title: _______________________           Title: ________________________

                                       8
<PAGE>
 
                                   EXHIBIT A
                                  OXIS PATENTS

 . U.S Patent No. 5,468,478, entitled "Conjugates of Superoxide Dismutase
  Coupled to High Molecular Weight Polyalkylene Glycols, issued November 21,
  1995.

 . U.S Patent No. 5,283,317, entitled "Intermediates for Conjugation of
  Polypeptides With High Molecular Weight Polyalkylene Glycols, issued February
  1, 1994.

 . U.S Patent No. 5,080,891, entitled "Conjugates of Superoxide Dismutase
  Coupled to High Molecular Weight Polyalkylene Glycols, issued January 14,
  1992.

 . U.S Patent No. 5,006,333, entitled "Conjugates of Superoxide Dismutase
  Coupled to High Molecular Weight Polyalkylene Glycols, issued April 9, 1991.

                                       9
<PAGE>
 
                                   EXHIBIT B



     .  Amgen, Inc., Thousand Oaks, California

     .  Mountain View Pharmaceuticals, Inc., Mountain View, California

     .  Centorcor, Inc., Malvern, Pennsylvania

                                       10

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