SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q
     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934


           -----
             X                  QUARTERLY REPORT
           -----
                  FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1998

                                    -- or --
           -----
                                TRANSITION REPORT
           -----
                        FOR THE TRANSITION PERIOD FROM TO


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

                            OSTEX INTERNATIONAL, INC.
                 Name of Registrant as Specified in Its Charter


                                     0-25250
                             Commission File Number

                               STATE OF WASHINGTON
          State or Other Jurisdiction of Incorporation or Organization

                                   91-1450247
                      I.R.S. Employer Identification Number

          2203 AIRPORT WAY SOUTH, SUITE 400, SEATTLE, WASHINGTON 98134
                                  206-292-8082
           Address and Telephone Number of Principal Executive Offices


                                      [N/A]
       Former name, address and fiscal year, if changed since last report

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

    Indicate  by  checkmark  whether  the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter  period that the
registrant  was required to file such  reports) and (2) has been subject to such
filing requirements for the past 90 days.

        Yes   X          No
            -----           -----

    THE NUMBER OF SHARES OF THE  REGISTRANT'S  COMMON  STOCK  OUTSTANDING  AS OF
AUGUST 1, 1998 WAS 12,696,250.












                            OSTEX INTERNATIONAL, INC.


                               INDEX TO FORM 10-Q

                         PART I - FINANCIAL INFORMATION

                                                                      Page
                                                                      -----
ITEM 1 - FINANCIAL STATEMENTS

       Condensed Balance Sheets  .....................................F-1

       Condensed Statements of Operations   ..........................F-2

       Condensed Statements of Cash Flow   ...........................F-3

       Notes to Condensed Financial Statements       .................F-4

ITEM 2 - MANAGEMENT'S DISCUSSION AND ANALYSIS OF
            FINANCIAL CONDITION AND RESULTS OF OPERATIONS     ........2

ITEM 3 - QUANTITATIVE AND QUALITATIVE DISCLOSURES
            ABOUT MARKET RISK   ......................................6

                          PART II -- OTHER INFORMATION

ITEM 1 - LEGAL PROCEEDINGS ...........................................6

ITEM 2 - CHANGES IN SECURITIES........................................6

ITEM 4 - SUBMISSION OF MATTERS TO A
                 VOTE OF SECURITY HOLDERS.............................7

ITEM 6 - EXHIBITS AND REPORTS ON FORM 8-K   ..........................7







                         PART I -- FINANCIAL INFORMATION


ITEM 1.    FINANCIAL STATEMENTS

       Attached hereto are Ostex International, Inc.'s (the 'Company's or Ostex'
') unaudited  condensed balance sheet as of June 30, 1998, and audited condensed
balance  sheet as of December 31, 1997,  the unaudited  condensed  statements of
operations for the quarters ended June 30, 1998 and 1997, and for the six months
ended June 30, 1998 and 1997, and the statements of cash flow for the six months
ended June 30, 1998 and 1997.  Notes follow the unaudited  financial  statements
and are an integral part thereof.


ITEM 2.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION 
           AND RESULTS OF OPERATIONS

       This Quarterly  Report on Form 10-Q contains  forward-looking  statements
which  reflect the  Company's  current  views with respect to future  events and
financial performance.  These forward-looking  statements are subject to certain
risks and  uncertainties,  including  those  discussed  below,  that could cause
actual  results  or the  timing of  certain  events to  differ  materially  from
historical results or those  anticipated.  Words used herein such as 'believes,'
'anticipates,'  'expects,'  'intends,' and similar  expressions  are intended to
identify  forward-looking   statements  but  are  not  the  exclusive  means  of
identifying such statements.  In addition,  the disclosures in this Item 2 under
the  caption  'Other  Factors  that  May  Affect  Operating  Results',   consist
principally  of a brief  discussion of risks which may affect future results and
are thus, in their  entirety,  forward-looking  in nature.  Readers are urged to
carefully  review and  consider the various  disclosures  made by the Company in
this  report  and in the  Company's  other  reports  previously  filed  with the
Securities and Exchange Commission (the  'Commission'),  including the Company's
Annual  Report on Form 10-K for the fiscal year ended  December 31,  1997,  that
attempt to advise  interested  parties of the risks and factors  that may affect
the Company's business.

OVERVIEW

       Ostex was incorporated in the State of Washington in 1989. The Company is
engaged in the  discovery  and  commercialization  of products  associated  with
osteoporosis and other collagen-related  diseases. The Company believes that its
lead product, the OSTEOMARK-registered trademark- test, incorporates 
breakthrough technology in the area of bone resorption measurement.

       Osteoporosis is a significant  health problem.  According to the National
Osteoporosis  Foundation (the 'NOF'),  osteoporosis  afflicts  approximately  28
million people in the U.S. alone. Additionally millions of people are at risk of
skeletal  degradation  associated  with  Paget's  disease of bone,  cancer  that
metastasizes  to  bone,  hyperparathyroidism  (overactivity  of the  parathyroid
gland,  characterized by a reduction of bone mass) and renal osteodystrophy.  In
spite  of  the  serious  human  and  economic  consequences  of  these  diseases
(according  to the NOF, the direct  healthcare  and indirect  lost  productivity
costs of osteoporosis  exceed $14 billion annually in the U.S.  alone),  medical
intervention usually commences only after pain, immobility,  fractures, or other
symptoms  have  appeared.   The  Company  expects  the  therapeutic  market  for
osteoporosis  will  increase  significantly.   The  Company  also  believes  new
therapeutic  products are under development for osteoporosis,  some of which are
in  late-stage  clinical  trials,  and  that the  Osteomark  test can be used to
effectively  predict a patient's  response to  osteoporosis  therapy and monitor
existing therapies and other therapies which may be developed.

       The Company is the exclusive licensee of the Osteomark technology,  known
clinically  as the NTx assay,  which is a urine test that can aid in  healthcare
decision-making  at  early  menopause  and  beyond.  The  Osteomark  assay  is a
non-invasive  diagnostic test which  quantitatively  indicates the level of bone
resorption.  Individuals  who are losing bone collagen at accelerated  rates may
progress to low bone mass, a major cause of  osteoporosis.  The Company believes
that early  identification  of high levels of bone resorption  allows physicians
the opportunity to prescribe antiresorptive therapy in cases where prescriptions
may not have been made otherwise,  thereby  avoiding the onset of  osteoporosis.
The Company also believes that the Osteomark assay aids clinicians in monitoring
the effects of antiresorptive  therapies in postmenopausal  women, as well as in
older patients who have already lost significant bone mass.



       On May  8,  1995,  the  Company's  Osteomark  assay  became  commercially
available in the United States as a urinary  assay that provides a  quantitative
measure of the excretion of cross-linked N-telopeptides of Type I collagen (NTx)
as an indicator of human bone resorption,  and in July 1996 the Company received
expanded claims from the Food and Drug Administration (the 'FDA') for the assay.
The 1996 claims allow that an Osteomark test measurement,  if taken prior to the
initiation  of  hormonal  antiresorptive  therapy,  can be utilized to predict a
patient's  response  to that  therapy,  in terms of its  effect on bone  mineral
density.  Additionally,  the  claims  allow  that  the  test  can  be  used  for
therapeutic  monitoring of antiresorptive  therapies in postmenopausal women, as
well as individuals  diagnosed with  osteoporosis and Paget's  disease,  and for
therapeutic  monitoring  of  estrogen-suppressing  therapies.  In March 1998 the
claims were further  expanded by allowing  that, in addition to the 1996 claims,
an Osteomark test measurement can identify the probability of a decrease in bone
mineral density in postmenopausal  women taking calcium supplements  relative to
those treated with hormonal antiresorptive therapy.

       The Company is manufacturing  and marketing the Osteomark assay initially
in an Enzyme-linked  Immunosorbent  Assay ('ELISA')  microtiter plate format for
testing  urine  samples and is in the latter  stages of adapting  the  Osteomark
assay to a serum format.  The Company  believes that the use of a serum NTx test
provides  a  number  of  advantages  to  testing  laboratories,   including  the
elimination   of  the   requirement   to  normalize  NTx  values  to  creatinine
concentration and to ultimately perform NTx testing on random access,  automated
analyzers.  The Company  initiated  clinical studies of its serum NTx test in an
ELISA format in June of 1998.  These studies are scheduled for completion in the
third quarter of 1998.

       Worldwide  promotion of the Osteomark test kits is supported by Johnson &
Johnson Clinical  Diagnostics,  Inc. ('Johnson & Johnson').  In 1995 the Company
entered into research, development, license and supply agreements with Johnson &
Johnson. These agreements grant Johnson & Johnson a license to manufacture, sell
and  distribute  certain  products  using  Ostex's bone  resorption  technology.
Currently,  Ostex sells  Johnson & Johnson the  Osteomark  assay in the existing
microtiter  plate  format  for  distribution  in the United  States and  certain
foreign countries and Johnson & Johnson is adapting the urine assay for use with
its  automated  analyzer.  Ostex will  receive  royalties on Johnson & Johnson's
automated analyzer sales of products incorporating licensed Ostex technology.

       Ostex has also entered into a research and  development  agreement  and a
license agreement with Mochida Pharmaceutical Co., Ltd. ('Mochida'),  a Japanese
pharmaceutical  company,  for the  commercialization  of the Osteomark  assay in
Japan.  Under the research and development  agreement,  Mochida has an option to
license the NTx serum assay upon  completion  of certain  milestones.  Under the
license  agreement,  Ostex granted Mochida exclusive  marketing and distribution
rights to certain  Ostex  products  in Japan,  and Ostex  sells to  Mochida  the
critical reagents  necessary for Mochida to assemble  Osteomark kits. In January
1998  Mochida  launched  the  Osteomark  assay in Japan  for the  management  of
patients with hyperparathyroidism and for patients with metastatic bone tumors.

       The Company also plans to develop the Osteomark  assay in other  formats,
including  formats suitable for use in the physician's  office.  The Company has
entered into agreements with Hologic,  Inc.  ('Hologic'),  a worldwide leader in
X-ray and  ultrasound  bone  sonometers  used to measure  and/or  estimate  bone
density to assist in the diagnosis and monitoring of osteoporosis and other bone
diseases, and Metrika, Inc. ('Metrika'), a diagnostic device company, to develop
physician office 'point-of-care' Osteomark assay devices.

RESULTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND JUNE 30, 1997

       The Company had revenues from product sales of $1,011,000 for the quarter
ended June 30, 1998,  compared to $949,000 for the quarter  ended June 30, 1997.
Revenue in the 1998 quarter  increased 7% compared to the 1997 due to a slightly
higher  number  of Osteomark  kits  sold  to  domestic   distributors   and
laboratories and an increase in research testing services.  The Company recorded
approximately  $16,000 of revenue  from  research  testing  services  during the
second quarter 1998 compared to zero in the same quarter of 1997.




       The  Company's  gross margin has remained  constant in the quarter  ended
June 30, 1998,  compared to the gross margin in the second  quarter of 1997.  In
the 1998 quarter, revenue increased despite a slight decrease in average pricing
levels as sales to  distributors  increased as a percentage  of total sales over
direct  customers  as well as a decrease in unit  production  for the  Osteomark
urine assay.  Cost of products  sold  primarily  include  labor costs,  material
management,  equipment and facility  costs.  In addition,  the Company  incurred
startup costs  associated  with the  introduction  of the serum NTx assay to the
production  process.  The gross  margin is expected  to  continue  to  fluctuate
depending on the volume and timing of customer orders and the production  levels
needed to fill customer demand.

       The Company's research and development  expenditures totaled $686,000 for
the quarter ended June 30, 1998,  compared to  $1,354,000  for the quarter ended
June 30, 1997.  The $668,000  decrease  resulted  primarily  from  completion of
contract  development  payments  pursuant  to NTx  point-of-care  co-development
programs during the first quarter of 1998. The Company  incurred higher costs in
the second  quarter of 1997  while  initiating  these  programs.  The  decreased
research and  development  expenses were also  attributable to the completion of
clinical  studies  that were  ongoing  during the 1997  quarter.  The  Company's
clinical  study  expenses  during  the 1997  quarter  included  a study  for the
determination  of the NTx  reference  range  in  males,  a study  to  complement
physician interpretation of NTx results in postmenopausal women, and preliminary
studies  for  the  use of  the  Osteomark  test  in  helping  to  identify  bone
metastases.  The  Company  anticipates  research  and  development  expenses  to
increase in future  quarters as it continues  its clinical  studies of its serum
NTx test in an ELISA format.

     Selling,  general and  administrative  expenses totaled  $1,774,000 for the
quarter ended June 30, 1998,  compared to  $1,862,000  for the period ended June
30, 1997. The decrease was due to restructuring  within the administrative areas
of the  Company  which  reduced  the  number of  personnel,  the  completion  of
litigation  in  connection  with the  arbitration  against  Boehringer  Mannheim
Diagnostics,  and the  resignation of certain  executive  management  during the
fourth  quarter of 1997 who were not  replaced.  The  decrease  was offset by an
increase  in expenses  associated  with the  promotion  and  advertising  of the
Osteomark test and higher costs associated with patent  prosecution,  litigation
costs in  connection  with the Company's  legal action  against  Osteometer  A/S
('Osteometer'),  and defense costs associated with litigation  initiated by C.R.
Bard  Inc.  ('Bard')(see  'Legal  Proceedings'  in Part II,  Item 1 of this Form
10-Q). Selling,  general and administrative expenses are expected to increase in
future  quarters as the Company  implements  new  marketing  programs to elevate
physician and consumer awareness of the Osteomark test.

       Interest  income  totaled  $202,000 for the quarter  ended June 30, 1998,
compared to $230,000 for the quarter ended June 30, 1997. The decrease is due to
lower  invested  balances  resulting  from  using  cash  to fund  the  Company's
operating losses.


RESULTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND JUNE 30, 1997

       The Company  recorded  revenues of  $1,592,000  for the six month  period
ended June 30, 1998,  compared to $1,603,000 for the six month period ended June
30, 1997.  The decreased  revenues  were due to lower volumes of Osteomark  kits
sold to research and  industrial  laboratories  during the six months ended June
30, 1998, compared to the same period of 1997.

       Cost of  products  sold  increased  2% as a  percentage  of sales for the
quarter ended June 30, 1998,  compared to the same quarter in 1997. The increase
in cost of products sold as a percentage of sales during the first six months of
1998 compared to the same period of 1997  resulted from a lower unit  production
volume and a slight  decrease in the average price due to an increased  level of
shipments   to   distributors   over  direct customers during the 1998  period.
Additionally,  costs in the 1998 period  increased within  manufacturing  due to
startup  costs  associated  with  the  introduction  of  the  NTx  assay  to the
production  process.  The gross  margin is expected  to  continue  to  fluctuate
depending on the volume and timing of customer orders and the production  levels
needed to fill customer demand.

       The Company's  research and development  expenditures  totaled $1,521,000
for the six month period ended June 30, 1998, compared to $2,432,000 for the six
months ended June 30, 1997.  The decrease of $911,000 was primarily due to lower
expenses  in  connection  with the  Company's  point-of-care  programs.  Reduced
obligations  for  contract   development  payments  for  the  NTx  point-of-care
development  program  in the first  quarter  of 1998  contributed  approximately
$445,000 to the decrease for the six months ended June 30, 1998, compared to the
same period of 1997. The Company  anticipates  development to continue for a NTx
point-of-care product in future quarters.




       The  completion  of clinical  studies and the closing of a laboratory  in
Portland also  contributed to the decrease in research and development  expenses
for the six months  ended June 30,  1998,  compared  to the same period of 1997.
Clinical  study  expenses  decreased  approximately  $218,000 in the 1998 period
compared to 1997.  Included in the Company's  clinical study expenses during the
1997 quarter was a study for the  determination  of the NTx  reference  range in
males,  a  study  to  complement  physician  interpretation  of NTx  results  in
postmenopausal  women, and preliminary studies for the use of the Osteomark test
in helping to identify bone  metastases.  These studies were  completed in 1997.
Additionally, research and development decreased in the 1998 period because of a
consolidation of research from its laboratory  located in Portland, Oregon, into
the Seattle laboratory in July 1997.

       Selling,  general and administrative  expenses totaled $4,025,000 for the
six month period ended June 30, 1998,  compared to $3,785,000 for the six months
ended June 30, 1997. The higher expense level was due to an increase in expenses
associated  with the promotion and  advertising of the Osteomark test and higher
costs  associated with patent  prosecution,  litigation costs in connection with
the Company's legal action against Osteometer, and defense costs associated with
litigation initiated by Bard (see 'Legal Proceedings' in Part II, Item 1 of this
Form 10-Q) despite lower expenses from  restructuring of  administrative  areas,
the completion of certain  litigation and the  resignation of certain  executive
management.  Selling,  general  and  administrative  expenses  are  expected  to
increase as the Company  implements new marketing  programs to elevate physician
and consumer awareness of the Osteomark test.

       Interest income totaled  $420,000 for the six month period ended June 30,
1998, compared to $479,000 for the same period ended June 30, 1997. The decrease
is due to  lower  invested  balances  resulting  from  using  cash to  fund  the
Company's operating losses.


LIQUIDITY AND CAPITAL RESOURCES

       As of June  30,  1998,  the  Company  had  $14,215,000  in cash  and cash
equivalents and short-term investments, working capital of $14,496,000 and total
shareholders'  equity of $17,593,000.  As a result of funding  operating  losses
during the six months ended June 30, 1998, cash, cash equivalents and short-term
investments decreased by $4,750,000, working capital decreased by $3,872,000 and
shareholders  equity decreased by $4,051,000.  During the six month period ended
June 30, 1998, the Company  purchased  $71,000 in property,  plant and equipment
and reduced notes payable by $89,000.

       The  Company's  future  capital  requirements  depend upon many  factors,
including  the timing and  effectiveness  of  commercialization  activities  and
collaborative  arrangements;  continued  scientific progress in its research and
development  programs;  the costs involved in filing,  prosecuting and enforcing
patent claims; the costs involved in legal efforts to enforce patent rights; and
the time and costs involved in obtaining  regulatory  approvals.  The Company is
likely to require  additional  funds from equity or debt financing and there can
be no assurance that such additional funds will be available on favorable terms,
if at all. Due to the Company's significant long-term cash requirements,  it may
seek to raise additional  capital if conditions in the public equity markets are
favorable,  even if the Company does not have an immediate  need for  additional
cash at that  time.  If  additional  financing  is not  available,  the  Company
anticipates  that its existing  available  cash, its future license and research
revenues  from  existing  collaboration  agreements,  product sales and interest
income  from  short-term  investments  will be  adequate  to satisfy its capital
requirements  and to fund  operations  through  1999. No assurance can be given,
however,  that such funds will in fact be  adequate  until that time,  since the
Company's  prediction  is  subject  to a  number  of  risks  and  uncertainties,
including those discussed in the following paragraph.


OTHER FACTORS THAT MAY AFFECT OPERATING RESULTS

       The Company's  operating results may fluctuate due to a number of factors
including,  but not  limited  to,  volume and timing of product  sales,  product
pricing,  market  acceptance  of  the  Company's  products,   changing  economic
conditions in the healthcare industry, delays and increased costs of product and
technology   development,   the  Company's   ability  to  develop  and  maintain
collaborative arrangements, the timing of payments under those arrangements, the
outcome of litigation,  and the effect of the Company's accounting policies,  as
well as other risk factors  detailed in the  Company's  1997 Form 10-K and other
Commission  filings.  All of the foregoing factors are difficult for the Company
to predict  and can  materially  adversely  affect the  Company's  business  and
operating results.




       The Company is currently  in the process of  evaluating  its  information
technology  infrastructure  for the Year 2000  compliance.  The Company does not
expect that the cost to modify its information  technology  infrastructure to be
Year 2000  compliant  will be material to its financial  condition or results of
operations.  The Company  does not  anticipate  any material  disruption  in its
operations  as a result of any failure by the Company to be in  compliance.  The
Company  does  not  currently  have any  information  concerning  the Year  2000
compliance  status of its suppliers and customers.  In the event that any of the
Company's  significant  suppliers or customers do not  successfully and timely
achieve Year 2000  compliance,  the Company's  business or  operations  could be
adversely affected.

ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

       Not Applicable


                          PART II -- OTHER INFORMATION


ITEM 1.    LEGAL PROCEEDINGS


       In June 1996,  the Company filed an action in the United States  District
Court for the Western District of Washington  against  Osteometer Biotech A/S, a
medical technology company based in Denmark, and Diagnostic Systems Laboratories
Inc. for patent infringement of United States Patent No. 5,455,179.  The Company
believes Osteometer's bone resorption immunoassay  incorporates technology which
infringes  patented Ostex technology.  In September 1996, the defendants filed a
response denying  infringement and counterclaimed  that Ostex' patent is invalid
and unenforceable. By order dated July 7, 1997, the Court granted Ostex's motion
to file a  supplemental  complaint,  to add a second  cause of action based upon
United  States Patent No.  5,641,837,  which issued on June 24, 1997. On October
24, 1997,  Ostex filed a second  supplemental  complaint to add third and fourth
causes of action based upon U.S. Patent No. 5,652,112,  which issued on July 29,
1997,  and U.S.  Patent No.  5,656,439,  which  issued on August 12,  1997.  The
lawsuit  is  currently   scheduled  for  trial  commencing  February  23,  1999.
Management intends to continue to vigorously assert its position in the lawsuit.

       On April 9, 1997,  the  Company  was served  with a lawsuit  filed in the
United States District Court,  Central District of California by C.R. Bard, Inc.
The complaint  alleged that Ostex' Osteomark  product  infringed U.S. Patent No.
4,628,027 assigned to Bard in 1993. On April 22, 1998, the Court issued an order
granting  Ostex' motion for summary  judgment and dismissed  Bard's lawsuit with
prejudice.  On June 8, 1998, the Court denied Bard's motion for reconsideration.
On June 29, 1998,  the parties filed a joint  stipulation  of dismissal  without
prejudice of Ostex'  counterclaim  for  declaratory  judgment of invalidity  and
unenforceability.   In  that  filing,  Bard  indicated  that  it  was  presently
considering  whether to appeal the Court's  judgment that the `027 patent is not
infringed.


ITEM 2.    CHANGES IN SECURITIES

       None







ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

       On May 18, 1998, the Company held its 1998 Annual Meeting of Shareholders
(the 'Annual Meeting'), at which the following members were elected to the Board
of Directors:

                                               Affirmative           Votes
                                                  Votes            Withheld
                                                  -----            --------
                  Thomas A. Bologna             11,155,024          63,631
                  Elisabeth L. Evans, M.D.      11,152,217          66,438
                  Gregory D. Phelps             11,156,074          62,581
                  John H. Trimmer               11,152,074          66,581

       The following members continued their terms on the Board of Directors:

                  Thomas J. Cable
                  David R. Eyre, Ph.D.
                  Fredric J. Feldman, Ph.D.

       The following proposals were also approved at the Annual Meeting:

                                         Affirmative   Votes     Votes
                                            Votes     Against   Withheld
                                            -----     --------  --------

    Ratification of Arthur Andersen LLP   11,134,144   38,659    45,852
    as the Company's independent
    auditors for the fiscal year ending
    December 31, 1998


ITEM 6.    EXHIBITS AND REPORTS ON FORM 8-K

       (A) EXHIBITS

       The following exhibit is filed herewith:

(1)    10.32        Development and Distribution Agreement dated June 8, 1998, 
                    with Metrika, Inc.
       27.1         Financial Data Schedule

(1) Confidential  treatment  requested.  Exhibit omits information that has been
filed separately with the Commission.


       (B) REPORTS ON FORM 8-K

       None








                                    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.


                                             OSTEX INTERNATIONAL, INC.



 DATE:  August 12, 1998                By         /S/ JOHN M. BRENNEMAN
                                             ----------------------------------
                                                     John M. Brenneman
                                             Director of Finance and Operations
                                             (principal financial and principal 
                                                    accounting officer)


                            OSTEX INTERNATIONAL, INC.

                            CONDENSED BALANCE SHEETS
                      (In thousands, except share amounts)



                                                           June 30,           December 31,
                                                             1998                1997
                                                         ---------------   --------------
                                                          (unaudited)
                                                                      
CURRENT ASSETS:
     Cash and cash equivalents                           $      1,851      $     2,201
     Short-term investments                                    12,364           16,764
     Trade receivables and other current assets, net            1,431            1,344
     Inventory, at cost                                           183              201
                                                         ---------------   --------------
        Total current assets                                   15,829           20,510

PROPERTY, PLANT AND EQUIPMENT, net of accumulated               2,695            2,965
     depreciation

OTHER ASSETS                                                      599              637

                                                         ===============   ==============
        Total assets                                     $     19,123      $    24,112
                                                         ===============   ==============


CURRENT LIABILITIES:
     Accounts payable and accrued expenses               $      1,333      $     2,142

NONCURRENT LIABILITIES:
     Note payable, net of current portion                         197              326
                                                         ---------------   --------------

        Total liabilities                                       1,530            2,468
                                                         ---------------   --------------


SHAREHOLDERS' EQUITY:
     Common stock, $.01 par value, 50,000,000
        authorized; 12,696,250 and 12,696,250 issued
        and outstanding, respectively                             127              127
     Additional paid-in capital                                45,642           45,642
     Accumulated other comprehensive income - unrealized
          (loss)/gain on short-term investments                   (32)               3
     Accumulated deficit                                      (28,144)         (24,128)
                                                          ---------------  ---------------
        Total shareholders' equity                             17,593           21,644
                                                          ---------------  ---------------

        Total liabilities and shareholders' equity        $    19,123      $    24,112
                                                          ===============  ===============


                    The  accompanying  notes  are  an  integral  part  of  these
condensed balance sheets.



                            OSTEX INTERNATIONAL, INC.

                       CONDENSED STATEMENTS OF OPERATIONS
                    (In thousands, except per share amounts)
                                   (unaudited)



                                                                 Quarter Ended                     Year to Date
                                                      ------------------------------------   ----------------------------------
                                                          June 30,           June 30,            June 30,           June 30,
                                                            1998               1997                1998               1997
                                                      -----------------  -----------------   ---------------- -----------------
                                                                                                   
REVENUE:
    Product sales and research testing services       $      1,011       $        949        $     1,592      $      1,603
                                                      -----------------  -----------------   ---------------- -----------------
        Total revenues                                       1,011                949              1,592             1,603

OPERATING EXPENSES:
    Cost of products sold                                      263                261                452               412
    Research and development                                   686              1,354              1,521             2,432
    Selling, general and administrative                      1,774              1,862              4,025             3,785
                                                      -----------------  -----------------   ---------------- -----------------
        Total operating expenses                             2,723              3,477              5,998             6,629
                                                                                           
                                                      -----------------  -----------------   ---------------- -----------------
        Loss from operations                                (1,712)            (2,528)            (4,406)           (5,026)

OTHER INCOME (EXPENSE):
    Interest income                                            202                230                420               479
    Interest expense                                           (15)               (19)               (30)              (39)

                                                      -----------------  -----------------   ---------------- -----------------
        Net loss                                      $     (1,525)      $     (2,317)       $    (4,016)     $     (4,586)
                                                      =================  =================   ================ =================


Basic and diluted net loss per common and
    common equivalent share                           $      (0.12)      $      (0.18)       $     (0.32)     $      (0.37)
        Shares used in calculation                          12,696             12,557             12,696            12,502




                       The  accompanying  notes  are an  integral  part of these
condensed financial statements.


                            OSTEX INTERNATIONAL, INC.

                       CONDENSED STATEMENTS OF CASH FLOWS
                                 (In thousands)
                                   (unaudited)



                                                                        Year to Date
                                                         --------------------------------------------
                                                             June 30,               June 30,
                                                               1998                   1997
                                                         ---------------------  ---------------------
                                                                           
CASH FLOWS FROM OPERATING ACTIVITIES                     $    (4,555)           $    (5,000)
                                                         ---------------------  ---------------------

CASH FLOWS FROM INVESTING ACTIVITIES:
     Purchases of short-term investments                     (29,809)                (3,592)
     Proceeds from sales of short-term investments            34,174                  8,791
     Purchase of property, plant and equipment                   (71)                  (763)
                                                         ---------------------  ---------------------
            Net cash provided by investing activities          4,294                  4,436
                                                         ---------------------  ---------------------

CASH FLOWS FROM FINANCING ACTIVITIES:
     Proceeds from exercise of common stock options                0                    118
     Payments on note payable                                    (89)                   (79)
                                                         ---------------------  ---------------------
                                                         
            Net cash provided by financing activities            (89)                    39
                                                         ---------------------  ---------------------

NET INCREASE IN CASH AND CASH
     EQUIVALENTS                                                (350)                  (525)

CASH AND CASH EQUIVALENTS, beginning of period                 2,201                  1,289

                                                         ---------------------  ---------------------
                                                   
CASH AND CASH EQUIVALENTS, end of period                 $     1,851            $       764
                                                         =====================  =====================



                   The  accompanying   notes  are  an  integral  part  of  these
condensed financial statements.






                            OSTEX INTERNATIONAL, INC.

                     NOTES TO CONDENSED FINANCIAL STATEMENTS


1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION

The  unaudited  condensed  financial  statements  include the  accounts of Ostex
International,  Inc. (a Washington corporation) (the 'Company'). These financial
statements have been prepared in accordance with generally  accepted  accounting
principles  for  interim  financial  reporting  and  pursuant  to the  rules and
regulations of the Securities and Exchange  Commission.  While these  statements
reflect  all  normal  recurring   adjustments  which  are,  in  the  opinion  of
management,  necessary  for fair  presentation  of the  results  of the  interim
periods,  they do not include all of the information  and footnotes  required by
generally accepted accounting principles for complete financial statements.  For
further  information,  refer to the financial  statements and footnotes  thereto
included in the  Company's  Annual  Report filed on Form 10-K for the year ended
December 31, 1997.


NET LOSS PER COMMON AND COMMON EQUIVALENT SHARE

The Company adopted SFAS No. 128,  'Earnings per Share,' effective  December 15,
1997.  Basic net loss per share is the net loss divided by the average number of
shares  outstanding during the year. Diluted net loss per share is calculated as
the net loss  divided  by the sum of the  average  number of shares  outstanding
during the year plus the net  additional  shares that would have been issued had
all dilutive options been exercised,  less shares that would be repurchased with
the  proceeds  from such  exercise  (Treasury  Stock  Method).  During all years
presented,   the  effect  of  including  outstanding  options  is  antidilutive,
therefore,  no options are considered in the calculation of diluted net loss per
share. There is no difference between the previously reported net loss per share
and the basic and diluted net loss per share.


2.  CONTINGENCIES

LEGAL PROCEEDINGS

Refer to Part II, Item 1 of this Form 10-Q.


3.  NEW ACCOUNTING PRONOUNCEMENTS

The Company has adopted SFAS No. 130, 'Reporting  Comprehensive  Income',  which
establishes  standards for reporting and disclosure of comprehensive income. The
components  of  comprehensive  income for the six months ended June 30, 1998 and
June 30, 1997, are as follows (in thousands) :

                                              June 30,          June 30,
                                                1998              1997
                                            ------------      ------------
         Net loss                           $  (4,016)        $  (4,586)
         Unrealized gain/(loss)
           on short-term investments              (35)             (105)
                                            ------------      ------------
         Total comprehensive loss           $  (4,051)        $  (4,691)
                                            ============      ============