SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549
                                 --------------

                                    FORM 8-K/A

                                 CURRENT REPORT

                       PURSUANT TO SECTION 13 OR 15(D) OF
                       THE SECURITIES EXCHANGE ACT OF 1934


        DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): AUGUST 5, 2002


                       AMERICAN BIOGENETIC SCIENCES, INC.
                       ----------------------------------
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

                                    DELAWARE
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                    (STATE OF JURISDICTION OF INCORPORATION)


              0-19041                                    11-2655906
        ---------------------               ---------------------------------
        (COMMISSION FILE NO.)               (IRS EMPLOYER IDENTIFICATION NO.)


        1375 AKRON STREET, COPIAGUE, NEW YORK                   11726
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      (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                (ZIP CODE)


                                  516-789-2600
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               (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE


                                 NOT APPLICABLE
- --------------------------------------------------------------------------------
          (FORMER NAME OR FORMER ADDRESS, IF CHANGED SINCE LAST REPORT)



Item 4.    Changes in Registrant's Certifying Accountant.
- ------     ---------------------------------------------

          On August 5, 2002,  the Company  received a letter from the Securities
and  Exchange  Commission  (the "SEC")  that the SEC has been  advised by Arthur
Andersen LLP ("Andersen"),  the Company's  independent public accountants,  that
Andersen is unable to perform  future  audit  services for the Company and, as a
result, Andersen's relationship with the Company is effectively terminated.

          Andersen's report on the financial  statements of the Company for each
of the past two fiscal  years  reflected  that such  financial  statements  were
"prepared  assuming  the  Company  will  continue  as a going  concern."  Except
therefor, Andersen's reports on the financial statements of the Company for each
of the past two fiscal years did not contain any adverse  opinion or  disclaimer
of opinion and was not qualified or modified as to  uncertainty,  audit scope or
accounting principles.

          During the Company's two most recent fiscal years,  and the subsequent
interim period through the date of this Report, there were no disagreements with
Andersen  on  any  matter  of  accounting  principles  or  practices,  financial
statement disclosure,  or auditing scope or procedure,  which disagreements,  if
not resolved to the satisfaction of Andersen, would have caused Andersen to make
reference to the subject matter of the  disagreements  in connection  with their
report on the Company's consolidated financial statements for such years.

          During the Company's two most recent fiscal years,  and the subsequent
interim period through the date of this Report, there was no "reportable event,"
as that term is defined in Item 304(a)(1)(v) of Regulation S-K, and there was no
disagreement  or difference of opinion with Andersen  regarding any  "reportable
event."

          During the two most recent  fiscal  years and the  subsequent  interim
period through the date of this Report, neither the Company nor anyone on behalf
of the Company  consulted another auditing firm regarding either the application
of  accounting  principles  to a  specified  transaction,  either  completed  or
proposed,  or the type of audit  opinion that might be rendered on the financial
statements  of the  Company  or any  matter  that was  either  the  subject of a
disagreement, within the meaning of Item 304(a)(1)(iv) of Regulation S-K, or any
reportable  event,  as that term is defined in Item  304(a)(1)(v)  of Regulation
S-K.

          The Company has been advised by Andersen that it is no longer  issuing
letters to  companies  for whom it was  providing  audit  services,  such as the
Company,  either  concurring or disagreeing  with  statements of the nature made
herein by the Company.



                                   SIGNATURES
                                   ----------

          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.


                                           AMERICAN BIOGENETIC SCIENCES, INC.


Dated: August 15, 2002                     By: /s/ Timothy J. Roach
                                               ---------------------------------
                                               Name:  Timothy J. Roach
                                               Title: Treasurer