METRA BIOSYSTEMS INC
10-Q, 1997-05-14
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>


               UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

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

                                   FORM 10-Q

  [ X ]     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
            SECURITIES EXCHANGE ACT OF 1934

                 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 1997


                            METRA BIOSYSTEMS, INC.
                            ----------------------
            (Exact Name of Registrant as specified in its charter)


                                    0-26234
                            ----------------------
                            Commission File Number

               CALIFORNIA                               33-0408436
- --------------------------------------  ---------------------------------------
  (State or other jurisdiction of       (I.R.S. Employer Identification Number)
   incorporation or organization)

               265 NORTH WHISMAN ROAD, MOUNTAIN VIEW, CA 94043-3911
               ----------------------------------------------------
               (Address of Registrant's principal executive offices)

                                 (415) 903-9100
                --------------------------------------------------
                (Registrant's telephone number including area code)



     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. 

[ X ]Yes  [   ] No.

     The number of shares of the Registrant's common stock outstanding as of 
April 30, 1997 was 12,611,938.


<PAGE>

                    METRA BIOSYSTEMS, INC. AND SUBSIDIARIES

                                    INDEX
                                    -----
                                                                       PAGE NO.
                                                                       --------
PART I.   FINANCIAL INFORMATION                                            3

ITEM 1.   FINANCIAL STATEMENTS                                             3

          CONSOLIDATED CONDENSED BALANCE SHEETS
          MARCH 31, 1997 AND JUNE 30, 1996                                 3

          CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS   
          THREE AND NINE MONTHS ENDED MARCH 31, 1997 AND 1996              4

          CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
          NINE MONTHS ENDED MARCH 31, 1997 AND 1996                        5

          NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS            6-8

ITEM 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
          FINANCIAL CONDITION, RESULTS OF OPERATIONS
          AND FACTORS THAT MAY AFFECT FUTURE RESULTS                      9-11

PART II.  OTHER INFORMATION                                               12

ITEM 1.   LEGAL PROCEEDINGS                                               12

ITEM 2.   CHANGES IN SECURITIES                                           12

ITEM 3.   DEFAULTS UPON SENIOR SECURITIES                                 12

ITEM 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITIES 
          HOLDERS                                                         12

ITEM 5.   OTHER INFORMATION                                               12

ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K                                12

          SIGNATURE                                                       13


                                       2

<PAGE>

PART I.  FINANCIAL INFORMATION

ITEM 1. - FINANCIAL STATEMENTS

                    METRA BIOSYSTEMS, INC. AND SUBSIDIARIES
                     CONSOLIDATED CONDENSED BALANCE SHEETS
                                (IN THOUSANDS)

                                    ASSETS

                                                         MARCH 31,    JUNE 30,
                                                           1997         1996
                                                        -----------   --------
                                                        (Unaudited)      (A)
Current assets:
   Cash and cash equivalents                             $ 15,916     $ 19,217
   Securities available-for-sale, at market                13,386       26,283
   Accounts receivable, net                                 1,342        1,266
   Interest receivable                                        275          578
   Inventories                                              1,052        1,040
   Prepaid expenses and other current assets                  200          249
                                                         --------     --------
      Total current assets                                 32,171       48,633

Property and equipment, net                                 4,265        4,314
Securities available-for-sale, at market                   12,027        6,747
Other assets, net                                             243          499
                                                         --------     --------
                                                         $ 48,706     $ 60,193
                                                         --------     --------
                                                         --------     --------
                     LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
   Current portion of capital lease obligations          $    552     $    407
   Accounts payable                                           737        2,185
   Accrued expenses                                         2,069        1,810
                                                         --------     --------
      Total current liabilities                             3,358        4,402
   Capital lease obligations                                1,721        1,367
                                                         --------     --------
      Total liabilities                                     5,079        5,769

Shareholders Equity:
   Preferred stock                                              -            -
   Common stock                                                13           13
   Capital in excess of par value of common stock          94,609       94,539
   Notes receivable from shareholders                         (40)         (90)
   Deferred compensation                                      (50)         (79)
   Foreign currency translation adjustment                    (12)          13
   Unrealized loss on securities available-for-sale           (93)         (83)
   Accumulated deficit                                    (50,800)     (39,889)
                                                         --------     --------
      Total shareholders' equity                           43,627       54,424
                                                         --------     --------
                                                         $ 48,706     $ 60,193
                                                         --------     --------
                                                         --------     --------

(A) Derived from audited financial statements at June 30, 1996

    See accompanying notes to consolidated condensed financial statements.


                                       3

<PAGE>

                    METRA BIOSYSTEMS, INC. AND SUBSIDIARIES
                CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                    THREE MONTHS ENDED        NINE MONTHS ENDED
                                                          MARCH 31,                MARCH 31,
                                                  -----------------------    ---------------------
                                                     1997         1996         1997         1996
                                                     ----         ----         ----         ----
<S>                                               <C>          <C>           <C>         <C>
Revenues:
   Product sales                                    $  1,710    $   1,062     $  4,392    $  2,836
   Partner revenues                                       62          178          274       1,854
                                                  ----------   ----------    ---------   ---------
      Total revenues                                   1,772        1,240        4,666       4,690

Operating expenses:
   Cost of product sales                                 741          764        3,023       2,152
   Research and development                              945        1,047        4,341       2,794
   Sales and marketing                                 1,738        2,039        7,147       4,685
   General and administrative                            687          859        2,771       2,061
   Acquired in-process research
         and development                                  --       11,291           --      11,291
                                                  ----------   ----------    ---------   ---------
      Total operating expenses                         4,111       16,000       17,282      22,983
                                                  ----------   ----------    ---------   ---------
         Loss from operations                         (2,339)     (14,760)     (12,616)    (18,293)

Interest income, net                                     500          342        1,705       1,202
                                                  ----------   ----------    ---------   ---------
      Net loss                                      $ (1,839)   $ (14,418)   $ (10,911)  $ (17,091)
                                                  ----------   ----------    ---------   ---------
                                                  ----------   ----------    ---------   ---------
Net loss per share                                  $  (0.15)   $   (1.40)   $   (0.87)  $   (1.73)
                                                  ----------   ----------    ---------   ---------
                                                  ----------   ----------    ---------   ---------
Weighted average shares used to compute
net loss per share                                12,614,513   10,264,400   12,607,177   9,862,216
                                                  ----------   ----------    ---------   ---------
                                                  ----------   ----------    ---------   ---------
</TABLE>

     See accompanying notes to consolidated condensed financial statements.


                                       4

<PAGE>

                    METRA BIOSYSTEMS, INC. AND SUBSIDIARIES
                CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                   NINE MONTHS ENDED
                                                                       MARCH 31,
                                                              -------------------------
                                                                 1997           1996
                                                                 ----           ----
<S>                                                           <C>            <C>
Increase (decrease) in Cash and Cash Equivalents:
      Net cash used in operating activities                   $ (10,644)     $  (7,372)

Cash flows from investing activities:
   Purchases of investment securities                           (18,284)       (30,430)
   Maturities and sales of investment securities                 25,891          9,851
   Purchases of property and equipment                             (883)        (3,085)
   Repayment of notes receivable from shareholders                   50             59
                                                              ---------      ---------
      Net cash (used in) provided by investing activities         6,774        (23,605)
          
Cash flows from financing activities:
   Proceeds from capital leases                                     848          1,922
   Repayments of capital leases                                    (349)          (146)
   Proceeds from issuance of common stock                            70         32,222
                                                              ---------      ---------
      Net cash provided by financing activities                     569         33,998
                                                              ---------      ---------
Net increase (decrease) in cash and cash equivalents             (3,301)         3,021
Cash and cash equivalents at beginning of period                 19,217          2,317
                                                              ---------      ---------
Cash and cash equivalents at end of period                     $ 15,916       $  5,338
                                                              ---------      ---------
                                                              ---------      ---------
Supplemental disclosure of cash flow information:
   Cash paid for interest                                      $    154       $     56
Supplemental disclosure of noncash investing and
   financing activities - conversion of mandatorily
   redeemable preferred stock and common stock
   warrant to common stock                                     $     --       $ 23,260
</TABLE>

     See accompanying notes to consolidated condensed financial statements.


                                       5

<PAGE>

                    METRA BIOSYSTEMS, INC. AND SUBSIDIARIES
             NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS
                             MARCH 31, 1997 AND 1996
                                  (UNAUDITED)

1.  THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

THE COMPANY

     Metra Biosystems, Inc. ("Metra" or the "Company") was incorporated on 
March 21, 1990. Since the commencement of operations the Company has been 
engaged in the development and commercialization of diagnostic products for 
the detection and management of metabolic bone diseases and disorders. 

     In December 1993, the Company incorporated a wholly-owned subsidiary, 
Metra Biosystems (U.K.) Ltd., that is responsible for the commercialization 
of Metra's products in Europe. In October 1995, a branch office of Metra 
Biosystems (U.K.) Ltd. was opened in Milan, Italy. In January 1997, the 
Company received a registration number to do business as Metra Biosystems 
GmbH, a wholly-owned subsidiary located in Germany. 

     In January 1996, the Company acquired Osteo Sciences Corporation, now a 
wholly-owned subsidiary, which is responsible for research and development of 
the Company's ultrasound technology.

     The accompanying unaudited consolidated condensed financial statements 
have been prepared by the Company, pursuant to the rules and regulations of 
the Securities and Exchange Commission, and reflect all adjustments, 
consisting only of normal recurring adjustments, which, in the opinion of 
management, are necessary for a fair statement of the results for the interim 
periods presented. Operating results for the three and nine months ended 
March 31, 1997 are not necessarily indicative of the results to be expected 
for the year.

     Certain information in footnote disclosures normally included in 
financial statements prepared in accordance with generally accepted 
accounting principles has been condensed or omitted pursuant to such rules 
and regulations. It is suggested that these consolidated financial statements 
be read in conjunction with the consolidated financial statements and the 
notes thereto contained in the Company's Annual Report on Form 10-K, as 
amended on Form 10-K/A, for the year ended June 30, 1996, previously filed 
with the Securities and Exchange Commission.

NET LOSS PER SHARE

     Net loss per share has been calculated based on the weighted average 
number of shares outstanding. Common equivalent shares from stock options and 
warrants have been excluded as their effect is anti-dilutive. In February 
1997, the Financial Accounting Standards Board issued Statement No. 128, 
Earnings per Share, which is required to be adopted on December 31, 1997. At 
that time, the Company will be required to change the method currently used 
to compute earnings per share and to restate all prior periods. Under the new 
requirements for calculating primary earnings per share, the dilutive effect 
of stock options will be excluded. There will be no impact on the Company 
from the adoption of Statement No. 128.


                                       6

<PAGE>

2.  INVESTMENT SECURITIES

     Investment securities which are classified as available-for-sale at 
March 31, 1997 and June 30, 1996 include the following: 

                                                      March 31,   June 30,
                                                        1997        1996
                                                      --------    --------
                                                         (in thousands)
         Fair Value
            U.S. Government securities                $  7,496    $  8,516
            Mortgage-backed securities                   6,208      12,132
            Corporate bonds                             11,506      12,174
                                                      --------    --------
                                                        25,210      32,822
            Marketable equity securities                   203         208
                                                      --------    --------
                                                      $ 25,413    $ 33,030
                                                      --------    --------
                                                      --------    --------
         Cost
            U.S. Government securities                $  7,499    $  8,527
            Mortgage-backed securities                   6,219      12,148
            Corporate bonds                             11,538      12,188
                                                      --------    --------
                                                        25,256      32,863
            Marketable equity securities                   250         250
                                                      --------    --------
                                                      $ 25,506    $ 33,113
                                                      --------    --------
                                                      --------    --------

     The cost and estimated fair value of securities available-for-sale as of 
March 31, 1997 by contractual maturity, consisted of the following:

                                                      Adjusted      Fair
                                                        Cost        Value
                                                      --------    --------
     Due in one year or less                          $  8,476    $  8,470
     Due in one to four years                           10,811      10,735
                                                      --------    --------
                                                        19,287      19,205
     Mortgage-backed securities                          6,219       6,208
                                                      --------    --------
                                                      $ 25,506    $ 25,413
                                                      --------    --------
                                                      --------    --------

3.  INVENTORIES

     Inventories consist of the following: 


                                                      March 31,    June 30,
                                                         1997        1996
                                                      ---------    ---------
                                                          (in thousands)
               Raw materials                           $   290     $   216
               Work-in-process                             187          --
               Finished goods                              575         824
                                                       -------     -------
                                                       $ 1,052     $ 1,040
                                                       -------     -------
                                                       -------     -------

4.  LEASE COMMITMENTS

     In December 1996, the Company entered into a leasing arrangement to 
finance $848,000 of equipment.  As of March 31, 1997, all of the lease line 
had been utilized.  The lease is classified as a capital lease and payments 
on the capital lease obligation extend to fiscal year 2001.  The leasing 
agreement includes negative covenants which require an irrevocable letter of 
credit in the event of non-compliance with the covenants.


                                       7

<PAGE>

5.  ACQUISITION - OSTEO SCIENCES CORPORATION

     On January 31, 1996, the Company purchased Osteo Sciences Corporation 
("Osteo") for 541,072 shares of Metra Common Stock valued at approximately 
$9,672,000 and options to purchase 19,343 shares of Metra Common Stock valued 
at approximately $345,000.  Additional costs associated with the transaction 
along with net liabilities assumed were approximately $1,274,000.   The 
transaction was recorded using the purchase method of accounting and resulted 
in a one-time write-off of $11,291,000 for acquired in-process research and 
development during the quarter ended March 31, 1996.

6.  SUBSEQUENT EVENT

     In April 1997 the Company  entered into a Co-Promotion Agreement with 
Berlex Laboratories, Inc. ("Berlex") pursuant to which the Company will 
compensate Berlex to conduct certain promotional activities and will pay 
Berlex commissions based upon increased sales of the Company's products.  The 
Company also issued Berlex a warrant to purchase 413,233 shares of the 
Company's Common Stock at a purchase price of $4.84 per share.   


                                       8

<PAGE>

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
         AND RESULTS OF OPERATIONS AND FACTORS THAT MAY AFFECT FUTURE 
         RESULTS

RESULTS OF OPERATIONS

THREE AND NINE MONTHS ENDED MARCH 31, 1997 AND 1996

REVENUES

Product sales increased to $1,710,000 and $4,392,000 for the three and nine 
months ended March 31,1997 as compared to $1,062,000 and $2,836,000, an 
increase of 61% and 55%, respectively, for the corresponding periods of 
fiscal 1996. The growth of product sales in the third quarter and first nine 
months of fiscal 1997 over the comparable prior periods of fiscal 1996 was 
principally due to an increased awareness and market acceptance of the 
Company's products. The primary factors related to this was the establishment 
of the Company's Italian sales office in October 1995, and increased market 
awareness in the U.S. from the promotion of the Company's key products 
following the U.S. Food and Drug Administration's clearance of these products 
for clinical use in late 1995. 

Partner revenues were $62,000 for the third quarter and $274,000 for the 
first nine months of fiscal 1997, compared to $178,000 and $1,854,000 for the 
corresponding periods of fiscal 1996, representing decreases of 65% and 85%, 
respectively. The decrease in partner revenues for the quarter and nine month 
period is primarily due to non-recurring milestone payments from corporate 
partners which were included in partner revenue in the prior fiscal year.

PRODUCT COSTS AND EXPENSES 

Cost of product sales were $741,000 for the third quarter and $3,023,000 for 
the first nine months of fiscal 1997, as compared to $764,000 and $2,152,000 
from the corresponding periods in the prior fiscal year. The decrease in the 
third quarter from the prior year was primarily related to improved product 
margins resulting from economies of scale and process improvements. For the 
nine month period, the increases in product costs are primarily the result of 
the product sales increases that have been realized over the corresponding 
periods in the prior years. Costs of product sales for the nine months of 
fiscal 1997 were 69% of product sales compared with 76% in fiscal 1996. The 
Company believes that the historical fluctuations in the cost of product 
sales were due to the initial production stages of several complex products 
and the subsequent investments in process improvements. Management believes 
that these investments will stabilize the quarterly fluctuations in the cost 
of product sales and may yield slight improvements in the product margin. 
Additional improvements can be realized but will be driven by the sales 
volume and mix that the Company is able to achieve. However, there can be no 
assurance that actual results will not be unfavorable in the foreseeable 
future.

Research and development expenses for the third quarter and first nine months 
of fiscal 1997 were $945,000 and $4,341,000, respectively, compared to 
$1,047,000 and $2,794,000 from the corresponding periods in the prior fiscal 
year. The third quarter decrease of 10% from the prior year was a direct 
result of the cost containment efforts initiated late in the second quarter 
of fiscal year 1997. The year-to-year spending increases for the nine month 
period were related to increased product development and collaborative 
programs as well as the on-going research costs of the Company's ultrasound 
program which was initiated in January 1996 through the acquisition of Osteo 
Sciences Corporation. The Company believes that research and development 
expenses will show slight increases in the upcoming quarters.

Sales and marketing expenses were $1,738,000 and $7,147,000 for the third 
quarter and first nine months of fiscal 1997, respectively, as compared to 
$2,039,000 and $4,685,000 from the corresponding periods in the prior fiscal 
year. The third quarter of fiscal 1996 marked the launch of broad based 
marketing promotional programs for the Company's clinical use of 
Pyrilinks-Registered Trademark--D. This included one-time expenses for 
programs such as literature development and advertising, which is the primary 
factor for the higher expenses in the third quarter of fiscal 1996 as 
compared to fiscal 1997. The increases for the nine month period are 
primarily attributable to increased 


                                       9

<PAGE>

personnel costs, sales expenses associated with physician education programs, 
and spending increases in the international sales locations. The Company 
believes that sales and marketing expenses will increase in subsequent 
periods due to fees and potential commissions payable to Berlex Laboratories, 
Inc. ("Berlex") in connection with the Co-Promotion Agreement entered into 
between the Company and Berlex in April 1997.

General and administrative expenses were $687,000 and $2,771,000 for the 
third quarter and first nine months of fiscal 1997, respectively, compared to 
$859,000 and $2,061,000 from the corresponding periods in the prior fiscal 
year. The decrease in the third quarter of fiscal 1997 is primarily due to 
recruiting expenses and expenses associated with the acquisition of Osteo 
incurred in the third quarter of fiscal 1996 that were not incurred in fiscal 
1997. The increase for the nine month period is primarily due to increased 
personnel costs as well as additional legal and consulting expenses necessary 
to support the Company's expanded operations as compared with the same period 
in the prior fiscal year.

NET INTEREST INCOME 

Net interest income was $500,000 and $1,705,000 for the third quarter and the 
first nine months of fiscal 1997, as compared to $342,000 and $1,202,000 from 
the corresponding periods in the prior fiscal year. The increase is 
primarily the result of increased cash resources available for investment 
resulting from the Company's follow-on offering in April 1996.

FINANCIAL CONDITION

LIQUIDITY AND CAPITAL RESOURCES

The Company had cash, cash equivalents and investment securities of $41.3 
million at March 31, 1997. The Company's use of cash in operating activities 
was $10.6 million for the nine months ended March 31, 1997 compared to $7.4 
million for the corresponding period ended March 31, 1996. The increase in 
cash usage was primarily due to the increased net operating loss for the 
corresponding periods and, to a lesser extent, fluctuations in working 
capital. Net cash received from financing activities for the first nine 
months of fiscal 1997 was $569,000, which was primarily comprised of $848,000 
of proceeds from a capital lease that was executed in December 1996 offset by 
$349,000 of repayments of existing capital leases.

Net capital expenditures for the first nine months of fiscal 1997 were 
$883,000, compared to $3,085,000 for the corresponding period in fiscal 1996. 
This higher amount in 1996 was primarily due to leasehold improvements to a 
new facility in support of the Company's expanded operations in Mountain 
View, California. 

In April 1997 the Company entered into a Co-Promotion Agreement with Berlex 
under which the Company is obligated to pay Berlex a fee of $3,000,000 on 
December 31, 1997 in consideration of promotional services rendered by Berlex 
with respect to certain of the Company's products. In addition, future 
commitment fees in fiscal year 1999 and fiscal year 2000 will be paid to 
Berlex if specified minimum sales targets are achieved. The Company will use 
a portion of its existing cash resources to make such fee payments when and 
if they come due. 

The Company's future capital requirements depend upon, among other things, 
the pace of market acceptance of the Company's products, the costs of 
research and development programs, the funding of clinical and regulatory 
related studies, the expansion of marketing and selling activities, costs 
involved in filing, prosecuting, enforcing, and defending patent claims, and 
the time and costs associated with obtaining regulatory approvals for future 
products. Funds may also be used for investments in, or acquisitions of, 
complementary businesses, products or technologies, in expanding the 
Company's manufacturing capacity or in improving its existing facilities. 
Although the Company believes its current cash, cash equivalents and 
investment securities will be sufficient to meet the Company's operating 
expenses and capital requirements into fiscal 1999, the Company's future 
liquidity and capital requirements will depend on the factors noted above, 
among others. The Company may, however, seek additional equity or debt 
financing to fund further expansion of its manufacturing capacity, or to fund 
other projects or acquisitions. There can be no assurance that if it becomes 
necessary to raise additional capital, that such capital will be available on 
acceptable terms, if at all. 


                                      10

<PAGE>

FACTORS THAT MAY AFFECT FUTURE RESULTS

The Company commenced its marketing efforts in the United States upon 
receiving 510(k) clearance for its key products in late 1995, and does not 
anticipate significant revenues from clinical sales of its products in the 
United States unless and until the results of its medical education efforts 
are realized. Achieving increased sales growth and improved product margins 
depends upon increased awareness and acceptance of the Company's products 
among clinicians, the success of the Company's Co-Promotion Agreement with 
Berlex Laboratories, Inc., adequate levels of third-party reimbursement for 
clinical use of its diagnostic tests, the Company's ability to successfully 
launch new products, continued sales growth of the Company's manual test 
formats and successful market penetration of automated test formats by the 
Company's corporate partners to the extent that this substantially increases 
market demand versus conversion of existing manual kit business. There can be 
no assurance the Company can successfully achieve any of the above items in a 
timely manner or at all, and failure to do so could have a material adverse 
effect on the Company's business, financial condition and results of 
operations.

DISCLOSURE PURSUANT TO THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995

THE STATEMENTS CONTAINED IN THE REPORT ON FORM 10-Q THAT ARE NOT PURELY 
HISTORICAL ARE "FORWARD LOOKING STATEMENTS" WITHIN THE MEANING OF SECTION 27A 
OF THE SECURITIES ACT OF 1933, AS AMENDED, AND SECTION 21E OF THE SECURITIES 
EXCHANGE ACTION OF 1934, AS AMENDED INCLUDING, WITHOUT LIMITATION, STATEMENTS 
REGARDING THE COMPANY'S FUTURE PRODUCT DEVELOPMENT AND COMMERCIALIZATION, 
PRODUCT SALES AND OTHER REVENUES, MARKET OPPORTUNITIES AND ACCEPTANCE, 
BELIEFS, EXPECTATIONS, GOALS, FINANCIAL PERFORMANCE, AND FUTURE STRATEGIES, 
ALL OF WHICH ARE DEPENDENT ON CERTAIN RISKS AND UNCERTAINTIES THAT MAY CAUSE 
ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE EXPRESSED IN THESE OR ANY 
OTHER FORWARD LOOKING STATEMENTS MADE BY OR ON BEHALF OF THE COMPANY. THESE 
RISKS AND UNCERTAINTIES INCLUDE THE UNCERTAINTY OF REALIZING INCREASED MARKET 
AWARENESS AND ACCEPTANCE FOR THE COMPANY'S PRODUCTS, THE SUCCESS OF THE 
COMPANY'S COLLABORATIVE RELATIONSHIPS, THE UNCERTAINTY OF OBTAINING ADEQUATE 
LEVELS OF THIRD-PARTY REIMBURSEMENT FOR CLINICAL USE OF THE COMPANY'S 
PRODUCTS, AND THE UNCERTAINTY AND VARIABILITY OF CONTINUING SALES GROWTH OF 
THE COMPANY'S PRODUCTS. FOR A MORE DETAILED DISCUSSION OF THESE RISKS, SEE 
THE RISK FACTORS LISTED IN THE COMPANY'S PROSPECTUS DATED APRIL 23, 1996 AND 
IN THE COMPANY'S ANNUAL REPORT ON FORM-10K FOR THE YEAR ENDED JUNE 30, 1996.


                                      11

<PAGE>

PART II. - OTHER INFORMATION

Item 1. - Legal Proceedings

        None

Item 2. - Changes In Securities

     With respect to the Company's currently outstanding Preferred Share 
Purchase Rights, on January 17, 1997, the Board of Directors of the Company 
approved an amendment of the Company's Preferred Shares Rights Agreement 
dated as of August 21, 1996 between the Company and The First National Bank 
of Boston (the "Rights Agreement") to increase the ownership threshold 
required to trigger the Rights Agreement from 15% to 20%, as more fully set 
forth in the Rights Agreement, and as amended on January 17, 1997.  The 
rights, privileges and preferences of the Company's Preferred Share Purchase 
Rights are described in the Company's Registration Statement on Form 8-A 
filed with the Securities and Exchange Commission on August 22, 1996, as 
amended on January 24, 1997.

Item 3. - Defaults Upon Senior Securities

        None

Item 4. - Submission of Matters to a Vote of Securities Holders

        None

Item 5. - Other Information

        None

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

     a.   Exhibits
     
          * 10.16  Product Research and Development Agreement between the
                   Company and Sumitomo Pharmaceuticals Co., Ltd., dated 
                   as of June 29, 1994.
     
          * 10.20  International Distributor Agreement between the Company and
                   Amersham K.K., dated as of April 8, 1993.

            27.1   Financial Data Schedule

     b.   Forms 8-K
          The Company filed a Report on Form 8-K, dated January 23, 1997,
          reporting the approval of an amendment to the Rights Agreement to
          increase the ownership threshold required to trigger the Rights
          Agreement from 15% to 20%.

     ------------------
     * Refiled herewith in unredacted form following expiration of the period 
       for which confidential treatment had been granted by the Securities and
       Exchange Commission. 


                                      12

<PAGE>

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.

/s/ Kurt E. Amundson                                               May 14, 1997
- -------------------------------------                              ------------
Kurt E. Amundson

Vice President and Chief Financial Officer 
(duly authorized and principal financial and
principal accounting officer)


                                      13



<PAGE>
                                                              EXHIBIT 10.16


                        PRODUCT RESEARCH AND DEVELOPMENT
                    AGREEMENT BETWEEN METRA BIOSYSTEMS, INC.
                     AND SUMITOMO PHARMACEUTICALS CO., LTD.

     This Agreement is made as of June 29, 1994 between Metra Biosystems, Inc.,
265 N. Whisman Road, Mountain View, California 94043, U.S.A, ("METRA") and
Sumitomo Pharmaceuticals Co., Ltd., 2-8 Doshomachi 2-chome, Chuo-ku, Osaka, 541,
Japan ("SUMITOMO").

1.   PRODUCTS COVERED BY AGREEMENT:

     "TESTS" means diagnostic assay kits (including updates) in manual
microtiter plate format and automated instrument formats to be developed by
Metra for clinical (non-research) applications based on levels of insulin-like
growth factor binding protein-3 ("IGF-BP3") in serum and other bodily fluids. 
Preliminary specifications for IGF-BP3 to be developed by Metra and marketed by
Sumitomo ("SPECIFICATIONS") are attached to this Agreement as EXHIBIT A and may
be modified by written agreement of Metra and Sumitomo.

2.   DISTRIBUTION RIGHTS:

     (a)  Sumitomo will have the exclusive right to distribute (including the
right to appoint subdistributors) and market the Tests in Japan for use as
diagnostic assays.

     (b)  Metra is willing to discuss with Sumitomo non-exclusive distribution
and marketing rights for the Tests in the Republic of China (Taiwan), the
People's Republic of China and the Republic of Korea if and to the extent Metra
is permitted to do so contractually.  Such distribution rights, if entered into
would be pursuant to the distribution agreements set forth in Section 13 below. 
If granted, it is not intended that Sumitomo will make any additional payments
to Metra to acquire distribution and marketing rights for the Tests for these
three countries, but Sumitomo will make good effort to match marketing
commitments and transfer prices applicable to other distributors of the Tests in
these countries.

     (c)  If Sumitomo at any time declines interest in collaborating with Metra
to exert its best efforts to obtain regulatory approval and to market a Test,
then Sumitomo's rights to the such product shall revert to Metra.  Sumitomo
shall have six months from date of completion of such product to inform Metra
whether or not it has interest.

3.   DUTIES OF SUMITOMO:

     Sumitomo will use reasonable diligence consistent with efforts related to
its own products to (i) perform necessary clinical trials for the Tests at
leading hospitals, (ii) apply for approval and registration of the Tests with
the Japan Ministry of Health and Welfare (the "MHW"), (iii) obtain insurance
reimbursement prices for the Tests, (iv) market and distribute the Tests once
approved, (v) not market or distribute competing tests that measure IGF-BP3
developed by Sumitomo or 



<PAGE>

third parties (other than Metra); except the RIA kits of IGF-BP3 provided by 
Mediagnost GmbH  which Sumitomo has already developed and will distribute and 
sell jointly with SRL Inc. in Japan under the existing contract between 
Sumitomo and Mediagnost, provided, however that following launch by Sumitomo 
of the Tests in Japan, Sumitomo will not advertise or promote any competing 
tests that measure IGF-BP3, (vi) provide information to Metra on the 
regulatory testing procedures (stability and others) which Metra needs to 
perform to satisfy regulatory requirements and standard industry practice for 
the Tests in Japan, and (vii) provide a copy of each complete registration 
package, including supporting data, to Metra at the time of submission to the 
MHW.

4.   DUTIES OF METRA:

     Metra will use reasonable diligence consistent with efforts related to its
own products to (a) keep Sumitomo informed on a regular basis (through written
progress reports and visits in the United States and Japan) of Metra's progress
in developing the Tests, (b) perform (and supply at no charge reasonable
quantities of sample Tests necessary to perform) all tests (such as stability
testing and performance testing) necessary for Sumitomo to obtain regulatory
approval to market the Tests in Japan based on Sumitomo's instructions,
(c) supply sample Tests for the initial evaluation by Sumitomo free of charge,
and (d) supply sample Tests for the clinical trials performed  by Sumitomo at
the price of $200 per Test.

5.   RESEARCH AND DEVELOPMENT PLANS:

     Metra will prepare the research and development plan for the Tests and
Sumitomo will prepare the development plan for the Tests for the Japanese market
promptly after signing this Agreement.  Preliminary version of such a plan for
IGF-BP3 is attached to this Agreement as Exhibits B and C.  Both companies will
use reasonable diligence to accomplish such a plan.  The plan may be modified at
any time by Sumitomo and Metra.  Both companies will meet at least semi-annually
to discuss such plans and to exchange information.  

6.   PAYMENTS TO METRA:

     As part of the costs of the ongoing and future research, product
development and performance testing of the Tests by Metra, Sumitomo will make
the following payments to Metra based upon the following milestones promptly
after their accomplishment.  These payments will be compensation for a part of
actual cost spent by Metra for the purpose of the research and development of
the Tests.

                                                           Payment
                        Date or Event                       Amount    
    -------------------------------------------------    ------------
    Signing of Agreement                                   $100,000

    Evaluation Tests sent to Sumitomo meet the 
    Specifications, excluding lot-to-lot precision 
    for three separate lots                                $100,000


                                     -2-

<PAGE>

     All payment will be in U.S. dollars.  The maximum payment to be made by
Sumitomo pursuant to this Section 6 is US $200,000.  If the Japanese Government
requires a withholding tax, Sumitomo may withhold such tax from such payments. 
Metra shall invoice Sumitomo for the above payment within 30 days after the Date
or the Event.  Sumitomo shall pay the amount within 30 days after the receipt of
the invoice.  

7.   TERM AND TERMINATION OF AGREEMENT:

     (a)  This Agreement will be effective from the date first above written and
will continue in effect 3 years from that date.  After such 3 year period, this
Agreement will be automatically extended for every succeeding 1 year unless
either party notifies the other party of its desire to terminate this Agreement
at least six (6) months before each anniversary date.

     (b)  Sumitomo may terminate the Agreement at any time upon six months'
prior notice to Metra and payment of all amounts due to Metra in such six month
period.  Upon such termination, all rights to the Tests (including product
registrations and trademarks) shall revert to Metra.


     (c)  Each party may terminate this Agreement without payment of any
compensation by giving a written notice of termination;

          (i)  if one party files a petition in bankruptcy or a petition to take
               advantage of any insolvency or reorganization act or, if one
               party be adjudicated a bankruptcy, or a court of competent
               jurisdiction shall enter an order or decree appointing a receiver
               of property of the party, and such adjudication, order or decree
               shall not be vacated or set aside or stayed within 30 days from
               its entry.

          (ii) if one party has failed to perform a material provision of this
               Agreement and has not corrected such failure within sixty days
               after receipt of notice describing such failure.

8.   SUPPLY OF TESTS AND REAGENTS.

     Metra will stably supply Tests to Sumitomo meeting agreed labeling and
product specifications and with remaining kit shelf life of at least six (6)
months.  The parties shall in good faith discuss Metra's production plan and
Sumitomo's delivery schedule and discuss the period of remaining shelf life of
Tests and whether any adjustment is necessary or possible.  The transfer price
for the Tests will be determined by one price formula which will be chosen by
Sumitomo from the two options set forth below.  Such transfer price per Test
shall be effective for the first calendar year after the Tests are launched by
Sumitomo in Japan and thereafter will be reviewed annually and if appropriate,
adjusted based upon mutual agreement.  The transfer price will be FCA
(Incoterms) the international airport nearest to Metra's place of business in
Mountain View, California.  All payments for the Tests purchased by Sumitomo
under this Agreement shall be made within sixty (60) days after the date of
shipment of Tests.  


                                      -3-

<PAGE>

          (i)  OPTION A:  The transfer price will be based on the number of
Tests purchased during a given calendar year by Sumitomo.  Sumitomo shall keep
Metra informed on a semi-annual basis of its projected requirements for Tests by
providing a rolling twelve (12) month forecast.

               The transfer price of Option A is as follows:


               Tests Purchased                            Price Per
               Per Calendar Year                            Test
              -------------------------------------------------------
                  First 400 Tests                           $300
                  Next 400 Tests                            $275
                  Test over 800                             $250

                                     OR

          (ii) OPTION B:  The transfer price will be based on the number of
Tests ordered pursuant to a binding purchase order which Sumitomo shall declare
for the one (1) year period following the month of such declaration.  To obtain
the special pricing based on this Option B, Sumitomo must purchase and take
delivery of the binding purchase order within twelve (12) months of the purchase
order date.  In the event that Metra fails to supply any quantities ordered
pursuant to this Option B, Sumitomo will pay for the Tests actually delivered at
the price which would have been applied to the originally declared quantity. 
Sumitomo shall keep Metra informed on a semi-annual basis of its projected
requirements for Tests by providing a rolling twelve (12) month forecast.  The
transfer price of this Option B is as follows:
     
                Number of Tests Ordered            Price per Test
              --------------------------------------------------------
                  1-400 Tests                    $300 for every Test
                  401-800 Tests                  $275 for every Test
                  Any order over 800 Tests       $250 for every Test
          
Metra shall use reasonable efforts to meet delivery dates set forth in accepted
purchase orders, but in any event will deliver Tests within ninety (90) days of
the requested delivery date.  Metra will warrant that the Tests will meet the
Specifications and will promptly replace any Tests which do not meet the
Specifications at Metra's expense.  Such warranty is the only warranty made by
Metra and is in place of any warranty of merchantability or fitness for a
particular purpose.


                                      -4-

<PAGE>

9.   PATENT MATTERS:

     (a)  Metra shall own all rights (including US and Japanese patent rights)
to the Tests and any improvements made pursuant to this Agreement.  Metra shall
supply Sumitomo with improved versions of the Tests as provided in Section 8
above.

     (b)  In case the Tests infringe or may infringe the patents or other rights
of any third parties, both parties shall, in good faith, discuss the steps to be
taken to resolve such problem.

10.  PUBLICITY:

     Neither party will disclose the financial terms of the Agreement without
the written permission of the other party, except as required by law.

11.  TRADEMARKS:

     Trademarks for the Tests to be distributed by Sumitomo will be decided
separately by both parties.

12.  LABELING:

     All Tests will be labeled (including package inserts) to indicate that
Metra is the manufacturer of the Tests for Sumitomo.

13.  DISTRIBUTION AGREEMENT:

     Concerning the Tests, both parties will start a discussion about a
distribution agreement after Sumitomo's NDA in Japan is submitted and conclude
the agreement upon the registration of the Tests.  This distribution agreement
will include the provisions of this Agreement and will extend to cover such
items as product liability, packaging, claims, returns and warranty among
others.

14.  CONFIDENTIALITY:

     Each party shall for the period of this Agreement and, for the longer of
(i) 5 years from the date of disclosure or (ii) 10 years from the date first
above written, thereafter keep secret and confidential all research, commercial
and business information received from the other party and shall not use such
information except for the purposes of this Agreement nor disclose such
information to any third party provided that the obligations contained in this
Clause shall not apply to information which:

     (a)  at the time of disclosure is in the public domain or which, after
disclosure, becomes in the public domain;

     (b)  at the time of disclosure is already in the possession of recipient;

     (c)  is disclosed to recipient by a third party which is entitled to make
such disclosure and is not itself under obligations of confidentiality;


                                      -5-

<PAGE>

     (d)  either party discloses to government authorities for the purposes of
Registration of Tests.

15.  NOTICE

         Any notice given under, amendments made to or agreements reached in
         pursuance of this Agreement shall be sent by facsimile followed 
         by registered letter and shall, in the case of Metra, be made by:

         Metra Biosystems, Inc.,
         265 N. Whisman Road
         Mountain View,  California 94043, U.S.A.

         and, in the case of Sumitomo, be made by:

         Manager, Corporate Planning Department
         Sumitomo Pharmaceuticals Co., Ltd.
         2-8 Doshomachi 2-chome
         Chuo-ku Osaka 541,
         Japan

or such other persons or addresses as either party may designate.  The language
of this Agreement is English and all communications between the parties in
respect of this Agreement shall be in English.

16.  ASSIGNMENT

     Neither Metra nor Sumitomo shall transfer or in any way make over the
benefits or obligations of this Agreement in whole or in part to any third party
without prior written consent of the other except for the assignment to the
successor or assignee of all of its business or all of its diagnostic business
subject to a prior notice to the other party.

17.  ENTIRE AGREEMENT

     This Agreement set forth the entire agreement and understanding between the
parties regarding the subject matter hereof and supersede all prior discussions
and agreement.  No amendment shall be effective unless made in writing by an
authorized signatory of the parties.

18.  VALIDITY/SEVERABILITY

     The invalidity or unenforceability of any provision of this Agreement shall
not affect the validity or enforceability of any other provision which shall
remain in full force and effect.  The parties shall use their best efforts to
achieve the purpose of the invalid provision by a new, legally valid
stipulation.


                                      -6-

<PAGE>

19.  FORCE MAJEURE

     Neither party shall be responsible for failure or delay in the performance
of any of its obligations hereunder due to Force Majeure.  Force Majeure shall
mean any circumstance which, due to an event or a legal position beyond the
parties' reasonable control, renders impossible the fulfillment of any of the
parties' obligations hereunder, such as but not limited to, acts of God, acts,
regulations and laws of any government, wars, civil commotions, destruction of
production facilities or materials by fires, earthquakes or storms, labor
disturbances, shortages of public utilities, common carriers or raw materials or
any other causes of similar effects.  The obligations hereunder which are
rendered impossible by any case of Force Majeure shall not be discharged, but
only be suspended and the party so affected shall continue to perform its
obligations as soon as such case of Force Majeure is removed or alleviated.

20.  LAW OF AGREEMENT

     This Agreement shall be governed by the laws of the State of California, 
U.S.A. Any and all disputes, controversies or differences which may arise 
between the parties hereto in relation to the interpretation or 
administration of this Agreement shall finally be settled by arbitration in 
accordance with the rules of the International Chamber of Commerce, by which 
each party hereto is bound. The arbitration shall be held in Tokyo, Japan, if 
demanded by Metra, in San Francisco, U.S.A., if demanded by Sumitomo.

In witness whereof the parties have executed two copies of this Agreement in
English.  
     
     
Signed for and on behalf of Metra Biosystems Inc.



By: /s/ George W. Dunbar Jr.
   ------------------------------------
   George W. Dunbar Jr.
   President and CEO

Date: 06-29-94                        
     ----------------------------------



signed for and on behalf of Sumitomo Pharmaceuticals Co., Ltd.

By: /s/ Hiroshi Ishimoda
   ------------------------------------
   Hiroshi Ishimoda
   Managing Director

Date:  13 July 94
     ----------------------------------



                                    -7-

<PAGE>

                                 EXHIBIT A

                      IGFBP-3 PRODUCT SPECIFICATIONS


Sample                            Serum

Sample Volume                     50-100uL
                                  sample dilution probably 1:100
                                  Dye added to assay buffer

Total Assay Time/Temperature      total time LESS THAN OR EQUAL TO 4 hours,
                                  room temp.

Type of Assay                     Sandwich type

Format                            microtiter strip wells, 6 2x8 strips/kit

Standards                         6 including 0

Controls                          2, high and low

Minimum Detection Limit           2.5 ng/mL

Standard Range                    To be determined
                                  (Current range 2.5-200 ng/mL

Enzyme conjugate                  Direct conjugate of Peroxidase, lyophilized
                                  Dye Added

Substrate                         TMB

Stop Solution                     0.3M H PO , 0.2M H SO , or 0.2M HCl
                                        3  4        2  4

Kit Shelf Life                    12 months at 2-8 degrees C

Specificity/Cross reactivity      BP3               100%
                                  BP1, 2, and 4     LESS THAN 2.5%

Within-run precision              LESS THAN OR EQUAL TO 10% average
 
Between-run precision             LESS THAN OR EQUAL TO 15% average

Lot-to-lot precision              LESS THAN OR EQUAL TO 15% average

Spike Recovery                    Average              100 PLUS OR MINUS 10%
                                  90% of individuals   100 PLUS OR MINUS 15%
                                  10% of individuals   100 PLUS OR MINUS 25%

Linearity                         Average              100 PLUS OR MINUS 10%
                                  90% of individuals   100 PLUS OR MINUS 15%
                                  10% of individuals   100 PLUS OR MINUS 25%

Correlation to Mediagnost Kit     r = 0.90       
                                                 


                                            R. Hesley

                                            June 24, 1994



<PAGE>


                                 EXHIBIT B

                        IGF-BP3 DEVELOPMENT TIMELINE

<TABLE>
<CAPTION>

- --------------------------------------------------------------------------------------------
    APR         MAY        JUN          JUL       AUG      SEP      OCT       NOV       DEC
- --------------------------------------------------------------------------------------------
<S>            <C>        <C>          <C>       <C>     <C>     <C>       <C>        <C>
    M Standard Stability &    Feas.
    O   value-assignment      Study     R&D-1    
    V  Timing issues                              R&D-2   
    E  Finalize Format                                    R&D-3   
                                                                  Pilot-1   
                                                                            Pilot-2   
                                                                                      Pilot-3

                                 *                                *            ^            *
                                 P                                P            |            P
                                 A                                A        Initiate         A
                                 R                                R        Real Time        R
                                 *                                *        Stability        *

</TABLE>

<PAGE>

                                 EXHIBIT C

                       IGF-BP3 SUMITOMO DEVELOPMENT PLAN

<TABLE>
<S>                     <C>                                    <C>
'94                     95'                                    96'

6  7  8  9  10  11  12  1  2  3  4  5  6  7  8  9  10  11  12  1  2  3  4  5  6  7  8  9  10  11  12
____________________________________________________________________________________________________
|  |  |  |   |   |   |  |  |  |  |  |  |  |  |  |   |   |   |  |  |  |  |  |  |  |  |  |   |   |   |


                                       Clinical Evaluation                                     ^
                                                                                           Approval
         ^
    Evaluation of Performance Using R & D Lot
                                                                       ^
                                                                 Application                       ^
                    Metra; Stability Tests                                                     Launch


</TABLE>

<PAGE>

                                 MEMORANDUM

     With reference to the Product Research and Development Agreement dated 
June 29, 1994, ("Agreement") both parties hereby agree to make this 
MEMORANDUM related to the patent issue as follows;

     In the event Sumitomo desires and requests that Metra should get 
Genentech's license covering the manufacturing of IGFBP-3 diagnostics, Metra 
shall make commercially reasonable efforts to obtain said license and to 
obtain, as part of said license, a provision indemnifying Metra against 
intellectual property claims. In that case, Sumitomo agrees that Metra shall 
act solely to negotiate with Genentech, provided, however, that Metra shall 
keep Sumitomo informed of the progress of such negotiation and of the 
contents of Genentech's proposals. Metra shall not agree with Genentech 
without prior consent of Sumitomo.

     In case Metra shall be required to make a lump-sum payment and running 
royalty to Genentech in consideration of all rights and licenses granted to 
Metra, Sumitomo shall bear the same amount as such payments. The above 
lump-sum payment will be paid to Metra by Sumitomo as an additional milestone 
of the Agreement within 30 days of execution of the above referenced license 
agreement with Genentech and the above running royalty will be paid to Metra 
by Sumitomo by adding to the transfer price set forth in the Agreement of 
IGFBP-3.

     In Witness Whereof, the parties hereto have caused this MEMORANDUM to be 
effective as of June 29, 1994 by their respective duly authorized 
representatives.


Metra Biosystems Inc.                   Sumitomo Pharmaceuticals Co., Ltd


By:  /s/ George W. Dunbar Jr.           By:  /s/ Hiroshi Ishimoda
   --------------------------------        ---------------------------------
   George W. Dunbar Jr.                    Hiroshi Ishimoda
   President and CEO                       Managing Director



<PAGE>

                                                                EXHIBIT 10.20



[METRA
 BIOSYSTEMS LOGO]

                      INTERNATIONAL DISTRIBUTOR AGREEMENT

     This International Distributor Agreement (the "Agreement") is entered 
into in Palo Alto, California, as of April 8, 1993, between METRA BIOSYSTEMS, 
INC., a corporation organized under the laws of California, United States of 
America, with principal offices at 3181 Porter Drive, Palo Alto, California 
94304, United States of America, ("Manufacturer") and Amersham K.K., an 
organization organized under the laws of Japan with offices at Tokyo Toyama 
Kaikan, 1-3, Kakusan 5-Chome, Bunkyo-ku, Tokyo 112, Japan ("Distributor").

     In consideration of the mutual promises contained herein, the parties 
agree as follows:

     1.   DEFINITIONS

         (a)  "Products" shall mean those products listed in EXHIBIT A 
attached hereto to be distributed solely for research purposes. Metra 
Biosystems may appoint other parties to develop and commercialize products 
for clinical use. Products may be changed, abandoned or added by 
Manufacturer, at Manufacturer's sole discretion, provided that Manufacturer 
gives ninety (90) days' prior written notice to Distributor. Manufacturer 
shall be under no obligation to continue the production of any Product, 
except as provided herein.

         (b)  "Territory" shall mean that geographic area identified in 
EXHIBIT B attached hereto.

     2.   APPOINTMENT AND AUTHORITY OF DISTRIBUTOR

         (a)  APPOINTMENT.  Subject to the terms and conditions set forth 
herein, Manufacturer hereby appoints Distributor as Manufacturer's 
distributor for the Products in the Territory, and Distributor hereby accepts 
such appointment. For so long as Distributor is performing in compliance with 
this Agreement, Manufacturer shall not appoint any other distributor with 
responsibility for sale of the Products in the Territory.

         (b)  TERRITORIAL RESPONSIBILITY.  Distributor shall not promote the 
Products outside the Territory or establish a facility for purposes relating 
to the Products outside the Territory. Distributor shall forward to 
Manufacturer all unsolicited inquiries relating to the Products from 
customers or potential customers outside the Territory.

         (c)  OTHER DISTRIBUTORS.  In the event that Manufacturer receives 
requests for information relating to, or purchase orders for, the Products 
from customers or potential customers within the Territory, Manufacturer 
shall forward such requests or orders to Distributor. Notwithstanding the 
above, nothing in this

<PAGE>


Agreement shall prevent Manufacturer's other distributors from selling 
Products in the Territory, so long as such sales are not solicited in the 
Territory. In the event that Distributor becomes aware that other 
distributors of Manufacturer are selling Products in the Territory, and 
provides Manufacturer written notice thereof, Manufacturer will use 
Manufacturer's commercially reasonable efforts to limit such sales of Products.

         (d)  CONFLICT OF INTEREST.  Distributor warrants to Manufacturer that 
Distributor does not currently represent or promote any lines or products 
that compete with the Products. During the term of this Agreement, 
Distributor shall not, without Manufacturer's prior written consent, 
represent, promote or otherwise try to sell within the Territory any lines or 
products that, in Manufacturer's judgment, compete with the Products covered 
by this Agreement.

         (e)  INDEPENDENT CONTRACTORS.  The relationship of Manufacturer and 
Distributor established by this Agreement is that of independent  
contractors, and nothing contained in this Agreement shall be construed to 
give either party the power to direct and control the day-to-day activities 
of the other or allow one party to create or assume any obligation on behalf 
of the other for any purpose whatsoever. All financial obligations associated 
with Distributor's business are the sole responsibility of Distributor. All 
sales and other agreements between Distributor and Distributor's 
customers are Distributor's exclusive responsibility and shall have no effect 
on Distributor's obligations under this Agreement.

     3.   TERMS OF PURCHASE OF PRODUCTS BY DISTRIBUTOR

         (a)  TERMS AND CONDITIONS.  All purchases of Products by Distributor 
from Manufacturer during the term of this Agreement shall be subject to the 
terms and conditions of this agreement.

         (b)  PRICES.  All prices of Products are F.O.B. Manufacturer's 
Distribution Site at the address listed for Manufacturer at the beginning of 
this Agreement or as provided by written notice to Distributor. The purchase 
price to Distributor for each of the Products ("Purchase Price") shall be as 
set forth in EXHIBIT A attached hereto. The difference between Distributor's 
Purchase Price and Distributor's selling price to Distributor's customers 
shall be Distributor's sole remuneration for sale of the Products. 
Manufacturer has the right at any time to revise the prices in EXHIBIT A with 
sixty (60) days' advance written notice to Distributor; PROVIDED, that 
Manufacturer shall not revise such prices more than once each calendar year. 
Such revisions shall apply to all orders received after the effective date of 
revision. Price changes shall not affect unfulfilled purchase orders accepted 
by Manufacturer prior to the effective date of the price change.

         (c)  TAXES.  Distributor's Purchase Price does not include any 
federal, state or local taxes that may be applicable to the Products. In the 
event that such taxes are applicable and Manufacturer has the legal 
obligation to collect such taxes, Manufacturer shall be entitled to add to 
Distributor's invoice the amount of such taxes and Distributor shall pay such 
amount unless Distributor provides

                                        -2-

<PAGE>

Manufacturer with a valid tax exemption certificate authorized by the 
appropriate taxing authority.

         (d)  ORDER AND ACCEPTANCE.  All orders for Products submitted by 
Distributor shall be initiated by written purchase orders sent to 
Manufacturer and requesting a delivery date during the term of this 
Agreement; PROVIDED, HOWEVER, that an order may initially be placed orally or 
by telecopy if a confirmational written purchase order is received by 
Manufacturer within five (5) days after said oral or telecopy order. To 
facilitate Manufacturer's production scheduling, Distributor shall submit 
purchase orders to Manufacturer at least sixty (60) days prior to the first 
day of the requested month of delivery. No order shall be binding upon 
Manufacturer until accepted by Manufacturer in writing, and Manufacturer 
shall have no liability to Distributor with respect to purchase orders that 
are not accepted. No partial shipment of an order shall constitute the 
acceptance of the entire order, absent the written acceptance of such entire 
order. Manufacturer shall use Manufacturer's reasonable best efforts to 
deliver Products at the times specified either in Manufacturer's quotation or 
in Manufacturer's written acceptance of Distributor's purchase orders. 
Notwithstanding the foregoing, Manufacturer shall have no obligation to 
supply Products to Distributor during any period for which Distributor's 
payments to Manufacturer hereunder are thirty (30) days or more past due.

         (e)  TERMS OF PURCHASE ORDERS.  Distributor's purchase orders 
submitted to Manufacturer from time to time with respect to Products to be 
purchased hereunder shall be governed by the terms of this Agreement and 
Manufacturer's published Standard Terms and Conditions of Sale as in effect 
at the time of such purchase, PROVIDED that, in the event of any conflict 
between the terms of this Agreement and the Standard Terms and Conditions of 
Sale of Manufacturer then in effect, this Agreement shall be controlling. 
Nothing contained in any purchase order of Distributor shall in any way 
modify such terms of purchase of Manufacturer or add any additional terms or 
conditions.

         (f)  PAYMENT.  Full payment of Distributor's Purchase Price for the 
Products (including any freight, taxes or other applicable costs initially 
paid by Manufacturer but to be borne by Distributor) shall be in United States 
of America dollars. All exchange, interest, banking, collection, and other 
charges shall be at Distributor's expense. Payment terms shall be 
[net forty-five] ([45]) days, and payment shall be made by wire transfer, 
check or other instrument approved by Manufacturer. Any invoiced amount not 
paid when due shall be subject to a service charge at the lower of the rate 
of [one and one-half] percent ([1.5]%) per month or the maximum rate 
permitted by law. If Distributor fails to make any payment to Manufacturer 
when due, Manufacturer may, without affecting its rights under this 
Agreement, cancel or delay any future shipments of the Products to 
Distributor.

         (g)  SHIPPING.  All Products delivered pursuant to the terms of this 
Agreement shall be suitably packed for air freight shipment in Manufacturer's 
standard shipping cartons, marked for shipment at Manufacturer's manufacturing
plant to Distributor's address set forth above, and delivered to Distributor 
or Distributor's carrier agent F.O.B. Manufacturer's Distribution Site, at 
which time title to such Products and risk of loss shall pass to Distributor. 
All shipments of 

                                        -3-

<PAGE>

Products shall include a Certificate of Analysis for each lot. Manufacturer 
shall deliver Products to the carrier selected by Distributor. In the event 
that Distributor does not provide written notice of such carrier, 
Manufacturer shall select the carrier. All freight, insurance, and other 
shipping expenses, as well as any special packing expense, shall be paid by 
Distributor. Distributor shall also bear all applicable taxes, duties, 
and similar charges that may be assessed against the Products after delivery 
to the carrier at Manufacturer's Distribution Site.

         (h)  REJECTION OF PRODUCTS.  Distributor shall inspect all Products 
promptly upon receipt thereof, such inspection to include, without 
limitation, a quality control analysis to determine whether Products and, 
where applicable, components thereof meet the specifications set forth in 
then-current package inserts for such Products and components and the 
Certificate of Analysis accompanying each shipment of Products. Distributor 
may reject any Product or component thereof that fails in any material way to 
meet such specifications. In the event that Distributor is not able to 
conduct a quality control analysis, Distributor, at Distributor's expense, 
may utilize contract facilities to conduct such analysis. Manufacturer will 
maintain samples of each production lot of Product, and Distributor will 
maintain samples of each shipment lot of Product, for archival purposes. Any 
Product or component thereof not properly rejected within four (4) weeks 
after receipt of that Product by Distributor ("Rejection Period") shall be 
deemed accepted. If any Product is shipped by Distributor to Distributor's 
customer prior to expiration of the Rejection Period, such unit shall be 
deemed accepted upon shipment by Distributor. To reject a Product or a 
component thereof, Distributor shall, within the Rejection Period, notify 
Manufacturer in writing or by telecopy of Distributor's rejection of such 
Product or component, stating the reason for such rejection. In the event 
that Manufacturer, in Manufacturer's sole discretion, desires that 
Distributor return a rejected Product or component thereof to Manufacturer, 
Distributor shall return to Manufacturer the rejected Product or component 
thereof, freight prepaid. Manufacturer will provide Distributor a credit to 
be applied against Distributor's future Product orders equal to the freight 
charges prepaid by Distributor for properly rejected Products or components 
thereof. As promptly as possible but no later than thirty (30) working days 
after receipt by Manufacturer of properly rejected Products or components 
thereof, Manufacturer shall replace such Products or components. Manufacturer 
shall pay shipping charges in connection with shipment of replaced Products 
or components thereof to Distributor for properly rejected Products; 
otherwise, Distributor shall be responsible for shipping charges. In the 
event that such replaced Products or components are shipped to Distributor 
together with Products corresponding to a purchase order pursuant to this 
Agreement, shipping charges in connection with such shipment shall be 
pro-rated between Manufacturer and Distributor. After the Rejection Period, 
Distributor may not return any Products or, if applicable, components thereof 
to Manufacturer for any reason without Manufacturer's prior written consent.

     4.  TRAINING AND SERVICE

        (a)  SERVICES BY DISTRIBUTOR.  Distributor shall have the 
responsibility to deliver the Products and train the customers with respect 
to the Products sold.

                                        -4-

<PAGE>


The services shall (i) be performed only by specially and properly trained 
personnel of Distributor, (ii) be of the highest quality, and (iii) be 
performed promptly.

       (b)  TRAINING BY MANUFACTURER.  Manufacturer shall provide sales and 
technical training, and technical support, to Distributor's personnel at 
periodic intervals, with the frequency and content of the training to be 
determined by agreement between Distributor and Manufacturer. Manufacturer 
and Distributor shall each pay their own costs for travel, food, and lodging 
during the training period. In addition to sales and technical training, 
Manufacturer shall cooperate with Distributor in establishing efficient 
promotional procedures and policies. Manufacturer shall promptly respond to 
Distributor's reasonable technical questions relating to Product.

     5.  WARRANTY TO DISTRIBUTOR'S CUSTOMERS

        (a)  STANDARD LIMITED WARRANTY.  Manufacturer warrants that the 
Products sold to Distributor will comply at the time of shipment to 
Distributor with the requirements of the U.S. Federal Food, Drug and Cosmetic 
Act, if applicable. This warranty is contingent upon proper use of a Product 
in the application for which such Product was intended and does not cover 
Products that were modified without Manufacturer's approval, that have 
expired or that were subjected by the customer to unusual physical, chemical 
or electrical stress.

        (b)  NO OTHER WARRANTY.  EXCEPT FOR THE EXPRESS LIMITED WARRANTY SET 
FORTH IN SUBSECTION 5(a) ABOVE, MANUFACTURER GRANTS NO WARRANTIES FOR THE 
PRODUCTS, (EXCEPT FOR THE IMPLIED WARRANTY OF TITLE) EXPRESS OR IMPLIED, 
EITHER IN FACT OR BY OPERATION OF LAW, BY STATUTE OR OTHERWISE, AND 
MANUFACTURER SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF QUALITY, WARRANTY 
OF MERCHANTABILITY, WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR WARRANTY 
OF NONINFRINGEMENT.

        (c)  LIMITATION OF LIABILITY.  MANUFACTURER'S LIABILITY UNDER THE 
WARRANTY SHALL BE LIMITED TO A REFUND OF THE CUSTOMER'S PURCHASE PRICE. IN NO 
EVENT SHALL MANUFACTURER BE LIABLE FOR THE COST OF PROCUREMENT OF SUBSTITUTE 
GOODS BY THE CUSTOMER OR FOR ANY DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL OR 
INCIDENTAL DAMAGES FOR BREACH OF WARRANTY, EXCEPT INSOFAR AS SUCH DAMAGES 
RELATE TO DEATH OR PERSONAL INJURY RESULTING FROM MANUFACTURER'S GROSS 
NEGLIGENCE.

       (d)  NO VERBAL REPRESENTATIONS OR WARRANTIES.  Manufacturer shall not 
be bound by any representations or statements on the part of its employees or 
agents whether oral or in writing and including those made in catalogues and 
other promotional material (excluding technical details and specifications) 
except where such representations or statements are expressly made part of 
this Agreement.

                                        -5-


<PAGE>

     6.  ADDITIONAL OBLIGATIONS OF DISTRIBUTOR

         (a)  HEALTH AND SAFETY LAWS AND REGULATIONS.  Distributor shall 
comply fully, at its expense, with any and all applicable health and 
safety laws and regulations of the Territory.

         (b)  REGISTRATIONS, LICENSES AND PERMITS.  Distributor agrees to use 
its best efforts to investigate, obtain government approval for, promote and 
distribute the Products, (solely for research purposes) at its own expense, 
in the Territory as soon as feasible after the date of this Agreement, using 
generally the same channels and methods, exercising the same diligence and 
adhering to the same standards which it employs with respect to other 
research products sold by Distributor, as well as Distributor's own products, 
if any. Unless prohibited by local law, all such registrations and approvals 
obtained by Distributor shall be in the name of Manufacturer. In particular, 
Distributor shall, at its own expense:

              (i)  Exercise due diligence to promptly obtain and maintain 
     government approvals to import, register and market the Products in each 
     jurisdiction in the Territory and to diligently proceed to secure and 
     maintain, as may be required from time to time, government importing, 
     registration and marketing approvals, customs clearances and currency 
     authorizations and any permits necessary in each jurisdiction in the 
     Territory. Distributor shall keep Manufacturer generally informed of the 
     regulatory requirements in each jurisdiction in the Territory and shall 
     submit to the government health authorities in each jurisdiction in the 
     Territory where sale of the Products is planned a complete application 
     for registration and marketing approval of the Products by the date set 
     forth in any marketing plan required by Manufacturer below. Distributor 
     shall file for regulatory approval for the sale of Products in the 
     Territory by Amersham K.K. If Manufacturer so requests, Distributor 
     shall notify Manufacturer each time it submits an application for 
     government registration and marketing approval for the Products and 
     shall, at Manufacturer's request, supply Manufacturer with copies of or 
     access to Distributor's filings and clinical data and shall keep 
     Manufacturer fully informed of the progress of each such application. 
     Manufacturer and Distributor agree to disclose promptly to the other all 
     reports and any information which they have available or which become 
     available to them relating to performance of, or any deleterious 
     physiological effects caused by or related to, the Products.


                                     -6-


<PAGE>

              (ii)  Within thirty (30) days after the date of this Agreement, 
     submit to Manufacturer a complete marketing plan, prepared by 
     Distributor in good faith, which shall be subject to approval by 
     Manufacturer, for the Products in each jurisdiction in the Territory. 
     Such plan shall be updated and delivered to Manufacturer annually and 
     shall include, at a minimum, information on competitive products; 
     proposed labeling (including label, package insert, introductory folder 
     and advertising); estimated sales volume; anticipated quantities of the 
     Products to be purchased from Manufacturer; distribution and promotional 
     plans; schedule for submission of applications for government 
     registration and marketing approval; and marketing program. All Product 
     labels, package inserts and claims, which are prepared for or by 
     Distributor, shall meet all legal requirements of the jurisdiction in 
     which the Products are marketed and shall be subject to Manufacturer's 
     prior review and approval.

              (iii)  Commence marketing of the Products throughout the 
     Territory immediately after receipt of government health registration 
     approvals, if applicable. Distributor shall be deemed to have commenced 
     the marketing of the Products only when it shall have offered the 
     Products regularly for sale.

              (iv)  Use its best efforts to distribute and sell the Products 
     for research purposes only and for use only by qualified individuals, as 
     appropriate in the Territory, in compliance with local laws and 
     regulations and good commercial practice and for uses and applications 
     reasonably approved by Manufacturer for the Products.

In the event that all necessary registrations, licenses and permits required 
to sell and distribute the Products in the Territory for clinical use (if 
applicable) are not obtained within nine (9) months after the effective date 
of this Agreement, Manufacturer may, in its sole discretion, terminate this 
Agreement upon written notice to Distributor.

         (c)  QUARTERLY PURCHASE COMMITMENT.  Distributor hereby agrees to 
purchase from Manufacturer during the first eight (8) calendar quarter 
periods commencing June 1, 1993 ("Quarterly Purchase Commitment") the number 
of Products set forth on EXHIBIT C. Annually thereafter, Distributor and 
Manufacturer shall mutually agree in writing on the Quarterly Purchase 
Commitment for the next four calendar quarter periods. Throughout the term of 
this Agreement, if (i) the parties cannot agree on Quarterly Purchase 
Commitments, or (ii) Distributor fails to purchase Distributor's Quarterly 
Purchase Commitment in any given calendar quarter and Distributor's Quarterly 
Purchase Commitment in the next calendar quarter plus the deficit in 
Distributor's Quarterly Purchase Commitment from the preceding calendar 
quarter, then, without prejudice to Manufacturer's other rights under this 
Agreement (including the right to terminate this Agreement upon written 
notice to Distributor), Manufacturer may appoint one or more additional 
distributors for sale of the Products in the Territory. Products returned to 
Manufacturer under the provisions of Subsection 3(h) above shall not count 
towards the fulfillment of Distributor's relevant Quarterly Purchase 
Commitment.


                                    -7-

<PAGE>

         (d)  FORECASTS.  Within the first five (5) days of every month, 
Distributor shall provide Manufacturer with a ninety (90) day rolling 
forecast showing prospective orders by Product and Distributor's anticipated 
Products purchase order submission date. Such rolling forecasts shall be 
non-binding and shall be used by Manufacturer for information purposes only.

         (e)  PROMOTION OF THE PRODUCTS.  Distributor shall, solely at 
Distributor's own expense, vigorously promote the sale of the Products within 
the Territory. Such promotion shall include, but not be limited to, preparing 
all promotional materials intended specifically for use in the Territory in 
appropriate languages for the Territory, advertising the Products in trade 
publications within the Territory, participating in appropriate trade shows, 
and directly soliciting orders from customers within the Territory for the 
Products. Distributor and its employees and agents shall not promote the 
Products for any indications not approved for such Products by applicable 
regulatory authorities. All promotional materials prepared by Distributor 
relating to the Products must be consistent with applicable law and 
promotional materials used by Manufacturer or other distributors of 
Manufacturer in connection with the Products. Distributor shall provide to 
Manufacturer for purposes of review and comment by Manufacturer any and all 
promotional, advertising, and educational materials and programs (in the 
English language and the actual language of labeling) relating to the 
Products at least thirty (30) days prior to the release of such materials or 
commencement of such programs. Manufacturer shall make its best efforts to 
provide to Distributor, within ten (10) business days after receipt of such 
materials and/or programs, any and all comments and suggestions relating to 
such materials and/or programs. In addition, Manufacturer shall be entitled, 
on Manufacturer's written request, to receive copies of any promotional 
materials used by Distributor and inspect such materials for purposes of 
determining that such materials are consistent with promotional materials 
used by Manufacturer or other distributors of Manufacturer. Distributor shall 
provide Manufacturer, within ten (10) days after the end of each calendar 
quarter, a description of Distributor's activities in promoting the Products 
within the Territory. Distributor agrees to not promote, or solicit orders 
for, the Products outside the Territory. Distributor shall use its best 
efforts to locate and introduce to Manufacturer appropriate pharmaceutical 
and bone densitometry companies in the Territory with which Manufacturer may 
want to establish education programs with respect to Products.

         (f)  REPRESENTATIONS.  Distributor shall make any false or 
misleading representations to customers or others regarding Manufacturer or 
the Products. Distributor and its employees and agents shall not make any 
representations, warranties or guarantees with respect to the specifications, 
features or capabilities of the Products that are not consistent with 
Manufacturer's documentation accompanying the Products or Manufacturer's 
literature describing the Products, including Manufacturer's standard 
limited warranty and disclaimers.

         (g)  INVENTORY.  Distributor shall, at Distributor's own expense, 
maintain a sufficient inventory of the Products at all times during the term 
of this Agreement as necessary in order to meet the requirements of any 
customer or potential customer within the Territory.


                                   -8-

<PAGE>

         (h)  FINANCES AND PERSONNEL.  Distributor shall maintain a net worth 
and working capital sufficient, in Manufacturer's reasonable judgment, to 
allow Distributor to perform fully and faithfully Distributor's obligations 
under this Agreement. Distributor shall devote sufficient financial resources 
and technically qualified sales and training personnel to the Products to 
fulfill Distributor's responsibilities under this Agreement.

         (i)  CUSTOMER AND SALES REPORTING.  Distributor shall, at 
Distributor's own expense and consistent with the sale policies of 
Manufacturer: (i) place the Products in Distributor's literature as soon as 
possible; (ii) provide adequate contact with existing and potential customers 
within the Territory on a regular basis, consistent with good business 
practice; (iii) assist Manufacturer in assessing customer requirements for 
the Products, including modifications and improvements thereto, in terms of 
quality, design, functional capability, and other features; and (iv) provide 
Manufacturer on a quarterly basis: (1) a summary of all purchase orders 
received by Distributor for Products, (2) market research information, as 
reasonably requested by Manufacturer for purposes of Manufacturer's market 
research, regarding competition and changes in the market within the 
Territory and (3) a summary of the number of Products held by Distributor at 
the end of such quarter.

         (j)  AUDITS.  Manufacturer reserves the right to authorize a 
representative of Manufacturer, at Manufacturer's expense, to audit 
Distributor's records relating to the Products, including, without 
limitation, records relating to preclinical and clinical trials, interactions 
between Distributor and principal investigators in such preclinical and 
clinical trials, inventories and sales. Upon prior written notice, 
Distributor shall provide reasonable access to such records during normal 
business hours at Distributor's business locations. Distributor shall maintain 
all records at Distributor's location for a minimum of two (2) years after 
termination of this Agreement.

         (k)  IMPORT AND EXPORT REQUIREMENTS.  Distributor shall, at 
Distributor's own expense, obtain and pay for import and export licenses and 
permits, pay customs charges and duty fees, and take all other actions 
required to accomplish the export and import of the Products purchased by 
Distributor. Distributor understands that Manufacturer is subject to 
regulation by agencies of the United States of America government, including 
the United States of America Department of Commerce, which prohibit export or 
diversion of certain technical products to certain countries. Distributor 
warrants that Distributor will comply in all respects with the export and 
re-export restrictions set forth in the export license for every Product 
shipped to Distributor.

         (l)  LIMITATION ON DISTRIBUTOR'S RIGHTS TO THE PRODUCTS. Distributor 
shall have no right to copy, modify or remanufacture any Product or part 
thereof. Distributor shall not make any changes, alterations, modifications 
or additions to the Products without prior written approval of Manufacturer.

         (m)  PRODUCT SPECIFICATIONS.  Distributor shall ensure that the 
specification of the Products ordered is suitable and safe for the intended 
use or


                                  -9-

<PAGE>

environment of use, except where it makes known details of such use to 
Manufacturer in writing prior to conclusion of the Agreement in such a way as 
clearly to place reliance on Manufacturer's special skills.

         (n)  PRODUCT HANDLING.  Distributor shall handle the Products in a 
suitable and safe manner and shall comply with any instructions supplied to 
it by Manufacturer. Distributor shall also pass on to users (including 
purchasers and users of other goods and equipment into which the Products are 
incorporated) all relevant safety information.

         (o)  INTELLECTUAL PROPERTY.  Where Distributor supplies designs, 
drawings and specifications to Manufacturer to enable Manufacturer to 
manufacture non-standard or custom made Products, Distributor warrants that 
such manufacture will not infringe the intellectual property rights of any 
third party.

     7.  ADDITIONAL OBLIGATIONS OF MANUFACTURER.  Manufacturer shall 
promptly provide Distributor with Manufacturer's core materials relating to 
promotion of the Products. Such core materials shall be provided primarily in 
the English language. Manufacturer shall promptly respond to all reasonable 
inquiries from Distributor concerning matters pertaining to this Agreement. 
Manufacturer shall refrain from giving quotations to exporters for Products 
to be shipped to the Territory. Manufacturer shall inform Distributor of new 
product developments relating to the Products. Manufacturer shall forward to 
Distributor copies of all approval letters received from the U.S. Food and 
Drug Administration with respect to Products.

     8.  TERM AND TERMINATION

         (a)  TERM.  This Agreement shall commence on the date hereof and 
continue in full force and effect for a fixed term of two (2) years from such 
date, unless terminated earlier under the provisions of this Section 8. At 
the end of such fixed term, this Agreement may be renewed for a fixed term of 
two (2) years; PROVIDED, that Manufacturer and Distributor agree in writing 
prior to the end of such fixed term upon the terms and conditions of such 
renewal, including, without limitation, minimum quantities of Products to be 
purchased by Distributor during such two (2) year fixed term. Manufacturer 
shall also have the right to terminate this Agreement upon written notice to 
Distributor as provided in Section 6 hereof.

         (b)  TERMINATION FOR CAUSE.  If either party defaults in the 
performance of any provision of this Agreement, then the non-defaulting party 
may given written notice to the defaulting party that if the default is not 
cured within thirty (30) days the Agreement will be terminated. If the 
non-defaulting party gives such notice and the default is not cured during 
such thirty (30) day period, then the Agreement shall automatically terminate 
at the end of that period.

         (c)  TERMINATION FOR INSOLVENCY.  This Agreement shall terminate, 
without notice, (i) upon the institution by or against Distributor of 
insolvency, receivership or bankruptcy proceedings or any other proceedings 
for the settlement



                                   -10-


<PAGE>

of Distributor's debts, (ii) upon Distributor's making an assignment for the 
benefit of creditors, or (iii) upon Distributor's dissolution or ceasing to 
do business.

         (d)  CLINICAL USE REGULATORY APPROVAL; TECHNICAL DIFFICULTIES. The 
rights of Distributor hereunder with respect any one Product may be 
terminated by Manufacturer, upon thirty (30) days' prior written notice, at 
any time following approval from appropriate Japanese governmental 
authorities to distribute such Product for clinical use. Where Manufacturer 
experiences technical difficulties in the production of non-standard or 
custom made Products, it may cancel this Agreement without being liable to 
Distributor in any way.

         (e)  RETURN OF MATERIALS.  All trademarks, trade names, patents, 
copyrights, designs, drawings, formulas or other data, photographs, samples, 
literature, and sales aids of every kind shall remain the property of 
Manufacturer. Within thirty (30) days after the termination of this 
Agreement, Distributor shall prepare all such items in Distributor's 
possession for shipment, as Manufacturer may direct, at Manufacturer's 
expense. Distributor shall not make, use, dispose of or retain any copies of 
any confidential items or information which may have been entrusted to 
Distributor. Effective upon the termination of this Agreement, Distributor 
shall cease to use all trademarks, marks, and trade names of Manufacturer.

         (f)  LIMITATION ON LIABILITY.  In the event of termination by either 
party in accordance with any of the provisions of this Agreement, neither 
party shall be liable to the other, because of such termination, for 
compensation, reimbursement or damages on account of the loss of prospective 
profits or anticipated sales or on account of expenditures, inventory, 
investments, leases or commitments in connection with the business or goodwill 
of Manufacturer or Distributor. Termination shall not, however, relieve 
either party of obligations incurred prior to the termination.

         (g)  SURVIVAL OF CERTAIN TERMS.  The provisions of Sections 3(h), 5, 
6(g), 6(k), 6(l), 6(m), 8, 9, 10, 11, 12, 13 and 14 shall survive the 
termination of this Agreement for any reason. All other rights and 
obligations of the parties shall cease upon termination of this Agreement.

     9.  LIMITATION ON LIABILITY.  MANUFACTURER'S LIABILITY ARISING OUT OF 
THIS AGREEMENT AND/OR SALE OF THE PRODUCTS SHALL BE LIMITED TO THE AMOUNT 
PAID BY THE CUSTOMER FOR THE PRODUCTS.  IN NO EVENT SHALL MANUFACTURER BE 
LIABLE FOR COSTS OF PROCUREMENT OF SUBSTITUTE GOODS BY ANYONE, EXCEPT IN THE 
CASE OF DEATH OR PERSONAL INJURY RESULTING FROM MANUFACTURER'S GROSS 
NEGLIGENCE. IN NO EVENT SHALL MANUFACTURER BE LIABLE TO DISTRIBUTOR OR ANY 
OTHER ENTITY FOR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR INDIRECT DAMAGES, 
HOWEVER CAUSED, ON ANY THEORY OF LIABILITY, WHETHER OR NOT MANUFACTURER HAS 
BEEN ADVISED ON THE POSSIBILITY OF SUCH DAMAGE.

                                   -11-
<PAGE>

     10.  PROPERTY RIGHTS AND CONFIDENTIALITY

          (a)  PROPERTY RIGHTS.  Distributor agrees that Manufacturer owns 
all right, title, and interest in the product lines that include the Products 
and in all of Manufacturer's patents, trademarks, trade names, inventions, 
copyrights, know-how, and trade secrets relating to the design, manufacture, 
operation or service of the Products. The use by Distributor of any of these 
property rights is authorized only for the purposes herein set forth, and 
upon termination of this Agreement for any reason such authorization shall 
cease.

          (b)  SALE CONVEYS NO RIGHT TO MANUFACTURE OR COPY.  The Products 
are offered for sale and are sold by Manufacturer subject in every case to 
the condition that such sale does not convey any license, expressly or by 
implication, to manufacture, duplicate or otherwise copy or reproduce any 
of the Products. Distributor shall take appropriate steps with Distributor's 
customers, as Manufacturer may request, to inform them of and assure 
compliance with the restrictions contained in this Subsection 10(b).

          (c)  CONFIDENTIALITY.

               (i)  Distributor acknowledges that by reason of Distributor's 
relationship to Manufacturer hereunder, Distributor will have access to 
certain information and materials concerning Manufacturer's business, plans, 
customers, technology, and products that are confidential and of substantial 
value to Manufacturer, which value would be impaired if such information were 
disclosed to third parties. Distributor agrees that Distributor will not use 
in any way for Distributor's own account or the account of any third party, 
nor disclose to any third party, any such confidential information revealed 
to Distributor by Manufacturer. Distributor shall take every reasonable 
precaution to protect the confidentiality of such information. Upon request 
by Distributor, Manufacturer shall advise whether or not Manufacturer 
considers any particular information or materials to be confidential. 
Distributor shall not publish any technical description of the Products 
beyond the description published by Manufacturer (except to translate that 
description into appropriate languages for the Territory). In the event of 
termination of this Agreement, there shall be no use or disclosure by 
Distributor of any confidential information of Manufacturer, and Distributor 
shall not manufacture or have manufactured any compositions, devices, 
components or assemblies utilizing any of Manufacturer's confidential 
information.

               (ii)  Manufacturer acknowledges that by reason of 
Manufacturer's relationship to Distributor hereunder, Manufacturer will have 
access to certain information and materials concerning Distributor's 
business, plans, customers, technology, and products that are confidential 
and of substantial value to Distributor, which value would be impaired if 
such information were disclosed to third parties. Manufacturer agrees that 
Manufacturer will not use in any way for Manufacturer's own account or the 
account of any third party, nor disclose to any third party, any such 
confidential information revealed to Manufacturer by Distributor. 
Manufacturer shall take every reasonable precaution to protect the 
confidentiality of such information. Upon request by Manufacturer, 
Distributor


                                    -12-

<PAGE>

shall advise whether or not Distributor considers any particular information 
or materials to be confidential. In the event of termination of this 
Agreement, there shall be no use or disclosure by Manufacturer of any 
confidential information of Distributor.

     11.  TRADEMARKS AND TRADE NAMES

          (a)  USE.  During the term of this Agreement, Distributor shall 
have the right to indicate to the public that Distributor is an authorized 
distributor of Manufacturer's Products and to advertise within the Territory 
such Products under the trademarks, marks, and trade names that Manufacturer 
may adopt from time to time ("Manufacturer's Trademarks"). Distributor shall 
not alter or remove any Manufacturer's Trademark applied to the Products at 
the factory. Except as set forth in this Section 11, nothing contained in 
this Agreement shall grant to Distributor any right, title or interest in 
Manufacturer's Trademarks. At no time during or after the term of this 
Agreement shall Distributor challenge or assist others to challenge 
Manufacturer's Trademarks or the registration thereof or attempt to register 
any trademarks, marks or trade names confusingly similar to those of 
Manufacturer.

          (b)  APPROVAL OF REPRESENTATIONS.  All representations of 
Manufacturer's Trademarks that Distributor intends to use shall first be 
submitted to Manufacturer for approval, which shall not be unreasonably 
withheld, of design, color, and other details or shall be exact copies of 
those used by Manufacturer. If any of Manufacturer's Trademarks are to be 
used in conjunction with another trademark on or in relation to the Products, 
then Manufacturer's mark shall be presented equally legibly, equally 
prominently, and of greater size than the other but nevertheless separated 
from the other so that each appears to be a mark in its own right, distinct 
from the other mark.

     12.  PATENT, COPYRIGHT, AND TRADEMARK INDEMNITY

          (a)  INDEMNIFICATION.  Distributor agrees that Manufacturer has the 
right to defend, or at Manufacturer's option to settle, and Manufacturer 
agrees, at Manufacturer's own expense, to defend or at Manufacturer's option 
to settle, any claim, suit or proceeding brought against Distributor or 
Distributor's customers on the issue of infringement of any United States of 
America or foreign patent, copyright or trademark by the Products sold 
hereunder or the use thereof, subject to the limitations hereinafter set 
forth. Manufacturer shall have sole control of any such action or settlement 
negotiations, and Manufacturer agrees to pay, subject to the limitations 
hereinafter set forth, any final judgment entered against Distributor or 
Distributor's customer on such issue in any such suit or proceeding defended 
by Manufacturer. Distributor agrees that Manufacturer at Manufacturer's sole 
option shall be relieved of the foregoing obligations unless Distributor or 
Distributor's customer notifies Manufacturer promptly in writing of such 
claim, suit or proceeding and gives Manufacturer authority to proceed as 
contemplated herein, and, at Manufacturer's expense, gives Manufacturer 
proper and full information and assistance to settle and/or defend any such 
claim, suit or proceeding. Manufacturer shall not be liable for any costs or 
expenses incurred without Manufacturer's prior written authorization.


                                  -13-

<PAGE>

          (b)  LIMITATION.  Notwithstanding the provisions of Subsection 
12(a) above, Manufacturer assumes no liability for (i) infringements covering 
completed equipment or any composition, assembly, circuit, combination, 
method or process in which any of the Products may be used but not covering 
the Products when used alone; (ii) trademark infringements involving any 
marking or branding not applied by Manufacturer or involving any marking or 
branding applied at the request of Distributor; or (iii) infringements 
involving the modification or servicing of the Products, or any part thereof, 
unless such modification or servicing was done by Manufacturer.

          (c)  ENTIRE LIABILITY.  THE FOREGOING PROVISIONS OF THIS SECTION 12 
STATE THE ENTIRE LIABILITY AND OBLIGATIONS OF MANUFACTURER AND THE EXCLUSIVE 
REMEDY OF DISTRIBUTOR AND DISTRIBUTOR'S CUSTOMERS, WITH RESPECT TO ANY 
ALLEGED INFRINGEMENT OF PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER 
INTELLECTUAL PROPERTY RIGHTS BY THE PRODUCTS OR ANY PART THEREOF.

     13.  INDEMNIFICATION.

          (a)  Manufacturer and Distributor each agree to indemnify and hold 
the other party harmless from and against any and all claims made by any 
person or entity arising out of the processing, marketing, distribution and 
sale of the Products, where and to the extent such damages have been caused 
by the fault of such party or its employees or agents. The indemnifying party 
shall have the right to defend or, at its option, to settle such claims, and 
if it chooses to exercise such right, it shall have control over any such 
claim or settlement negotiations. The indemnifying party shall be relieved of 
the foregoing obligations unless the indemnified party gives prompt notice in 
writing of any such claim, suit or proceeding and, at the indemnifying 
party's expense, gives the indemnifying party proper and full information and 
assistance to settle and/or defend any such claim, suit or proceeding.

          (b)  Distributor shall indemnify Manufacturer in respect of any 
claim which may be made against the Manufacturer.

               (i)  that the use to which the Products are put constitutes a 
     breach of Section 6 of The Health and Safety at Work Act 1974 or any 
     other relevant United Kingdom or overseas safety legislation; and/or

               (ii) arising out of the failure by the Distributor to observe 
     the terms of the Agreement.

The provisions of this Section 13(b) shall not apply where the claim arises 
as a result of the negligence of Manufacturer or use of the Products in 
accordance with Manufacturer's written instructions.


                                   -14-

<PAGE>

     14.  GENERAL PROVISIONS


          (a)  GOVERNING LAW AND JURISDICTION.  This Agreement shall be 
governed by, and construed and interpreted in accordance with, the laws of 
the State of California, United States of America, without reference to 
conflict of laws principles or statutory rules of arbitration. The federal 
and state courts within the State of California, United States of America 
shall have exclusive jurisdiction to adjudicate any dispute arising out of 
this Agreement. Distributor hereby expressly consents to (i) the personal 
jurisdiction of the federal and state courts within California, (ii) service 
of process being effected upon Distributor by registered mail sent to the 
address set forth at the beginning of this Agreement, and (iii) the 
uncontested enforcement of a final judgement from such court in any other 
jurisdiction wherein Distributor or any of Distributor's assets are present.

          (b)  ENTIRE AGREEMENT.  This Agreement sets forth the entire 
agreement and understanding of the parties relating to the subject matter 
herein and merges all prior discussions between them. No modification of or 
amendment to this Agreement, nor any waiver of any rights under this 
Agreement, shall be effective unless in writing signed by the party to be 
charged.

          (c)  NOTICES.  Any notice required or permitted by this Agreement 
shall be in writing (in the English language) and shall be sent by telex, 
telecopier or telegram or by prepaid registered or certified mail, return 
receipt requested, addressed to the other party at the address shown at the 
beginning of this Agreement or at such other address for which such party 
gives notice hereunder. Such notice shall be deemed to have been given upon 
the earlier of receipt by the party to whom notice was sent or three (3) days 
after deposit in the mail.

          (d)  FORCE MAJEURE.  Nonperformance of either party shall be 
excused to the extent that performance is rendered impossible by strike, 
fire, flood, governmental acts or orders or restrictions, failure of 
suppliers, or any other reason where failure to perform is beyond the 
reasonable control of and is not caused by the negligence of the 
non-performing party.

          (e)  NON-ASSIGNABILITY AND BINDING EFFECT. A mutually agreed 
consideration for Manufacturer's entering into this Agreement is the 
reputation, business standing, and goodwill already honored and enjoyed by 
Distributor under Distributor's present ownership, and, accordingly, 
Distributor agrees that Distributor's rights and obligations under this 
Agreement may not be transferred or assigned directly or indirectly without 
the prior written consent of Manufacturer. Subject to the foregoing sentence, 
this Agreement shall be binding upon and inure to the benefit of the parties 
hereto and their successors and assigns.

          (f)  LEGAL EXPENSES.  The prevailing party in any legal action 
brought by one party against the other and arising out of this Agreement 
shall be entitled, in addition to any other rights and remedies that such 
prevailing party may have, to reimbursement for expenses incurred by such 
prevailing party, including court costs and reasonable attorneys' fees.


                                   -15-

<PAGE>

          (g)  COUNTERPARTS.  This Agreement may be executed in two or more 
counterparts, each of which shall be deemed an original and all of which 
together shall constitute one instrument.

          (h)  PARTIAL INVALIDITY.  If any provision of this Agreement is 
held to be invalid, then the remaining provisions shall nevertheless remain 
in full force and effect. The parties agree to renegotiate in good faith any 
term held invalid and to be bound by the mutually agreed substitute 
provision.

     IN WITNESS WHEREOF, the undersigned are duly authorized to execute this 
Agreement on behalf of Manufacturer and Distributor, as applicable.


   METRA BIOSYSTEMS, INC.                      AMERSHAM K.K.
     ("Manufacturer")                         ("Distributor")

By:  /s/ George W. Dunbar, Jr.           By:  /s/ V. Chambers
   ---------------------------------        -------------------------------
Print Name:  George W. Dunbar, Jr.       Print Name:  V.M.A. Chambers
           -------------------------                -----------------------
Title:  President & CEO                  Title:  President
      ------------------------------           ----------------------------



                                   -16-

<PAGE>




                                 EXHIBIT A

                  PRODUCT DESCRIPTION AND PURCHASE PRICE
                        For Research Products Only


                                                    Distributor's
                                                   Purchase Price
           Product(1)                              (U.S. dollars)
- -----------------------------------------          --------------

Collagen Crosslinks Immunoassay in
microtiter plate enzyme-linked
immunosorbent assay (ELISA)
format, including packaging,
labeling and product inserts                         $[500.00]

Prolagen-C-TM- Immunoassay in
microtiter plate sandwich-assay
format, including packaging, labeling             [to be determined]
and product inserts

NovoCalcin-TM- Immunoassay in
microtiter plate enzyme-linked
immunosorbent assay (ELISA)                       [to be determined]
format, including packaging, labeling
and product inserts

(1) Products to be sold by Distributor solely for research purposes.


   METRA BIOSYSTEMS, INC.                      AMERSHAM K.K.
     ("Manufacturer")                         ("Distributor")

By:  /s/ George W. Dunbar, Jr.           By:  /s/ V. Chambers
   ---------------------------------        -------------------------------
Print Name:  George W. Dunbar, Jr.       Print Name:  V.M.A. Chambers
           -------------------------                -----------------------
Title:  President & CEO                  Title:  President
      ------------------------------           ----------------------------



                                   -17-

<PAGE>



                                 EXHIBIT B

                                 TERRITORY

Distributor's Territory shall be all portions of the following:


                                  [Japan]




   METRA BIOSYSTEMS, INC.                      AMERSHAM K.K.
     ("Manufacturer")                         ("Distributor")

By:  /s/ George W. Dunbar, Jr.           By:  /s/ V. Chambers
   ---------------------------------         ----------------------------
Print Name:  George W. Dunbar, Jr.       Print Name:  V.M.A. Chambers
           -------------------------                ---------------------
Title:  President & CEO                  Title:  President
      ------------------------------           --------------------------


                                   -18-


<PAGE>


                                  EXHIBIT C

                       QUARTERLY PURCHASE COMMITMENTS
                         For Research Products Only

                                      First Year             Second Year
                                    Number of Kits          Number of Kits
                                    --------------          --------------
[Crosslinks]                        [to be agreed]          [to be agreed]
[Prolagen-C-TM]                     [to be agreed]          [to be agreed]
[NovoCalcin-TM]                     [to be agreed]          [to be agreed]







   METRA BIOSYSTEMS, INC.                      AMERSHAM K.K.
     ("Manufacturer")                         ("Distributor")

By:  /s/ George W. Dunbar, Jr.           By:  /s/ V. Chambers
   ---------------------------------        -------------------------------
Print Name:  George W. Dunbar, Jr.       Print Name:  V.M.A. Chambers
           -------------------------                -----------------------
Title:  President & CEO                  Title:  President
      ------------------------------           ----------------------------
                                                 1 May 1993


                                   -19-


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE METRA
BIOSYSTEMS, INC. QUARTERLY REPORT ON FORM 10-Q FOR THE PERIOD ENDED MARCH 31,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-START>                             JUL-01-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                          15,916
<SECURITIES>                                    13,386
<RECEIVABLES>                                    1,342
<ALLOWANCES>                                         0
<INVENTORY>                                      1,052
<CURRENT-ASSETS>                                32,171
<PP&E>                                           4,265
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  48,706
<CURRENT-LIABILITIES>                            3,358
<BONDS>                                              0
                                0
                                          0
<COMMON>                                            13
<OTHER-SE>                                      43,614
<TOTAL-LIABILITY-AND-EQUITY>                    48,706
<SALES>                                          4,392
<TOTAL-REVENUES>                                   274
<CGS>                                            3,023
<TOTAL-COSTS>                                   17,282
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (10,911)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (10,911)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (10,911)
<EPS-PRIMARY>                                    (.87)
<EPS-DILUTED>                                    (.87)
        

</TABLE>


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