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



                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


Date of Report (Date of earliest event reported):  November 21, 2002


                           BIOANALYTICAL SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)



            Indiana                       0-23357                35-1345024
(State or other jurisdiction of   (Commission File Number)    (I.R.S. Employer
 incorporation or organization)                              Identification No.)


              2701 KENT AVE
         WEST LAFAYETTE, INDIANA                                 47906-1382
(Address of principal executive offices)                         (Zip Code)


     Registrant's telephone number, including area code: (765) 463-4527




Item 5.  Other Events.

     Bioanalytical Systems, Inc. ("BAS") and PharmaKinetics  Laboratories,  Inc.
("PKLB") entered into a second amendment,  dated as of November 21, 2002, to the
agreement of merger by and among BAS, PKLB and PI Acquisition  Corp. dated as of
June 20, 2002, as amended by a first amendment dated as of July 24, 2002.

     The second  amendment,  dated as of November  21,  2002,  provides  for the
cancellation  of  certain  shares of PKLB held by BAS upon  consummation  of the
merger,  makes additions to and modifies the  termination  rights granted to the
parties in the merger agreement,  and modifies the merger consideration  payable
to the holders of PKLB Class A Convertible Preferred Stock. First, the amendment
provides  that all shares of common  stock of PKLB held by BAS will be  canceled
automatically  as of the  effective  time of the merger.  BAS does not currently
hold any PKLB common stock,  however,  BAS has been granted the right to convert
outstanding  debt owed to it by PKLB into PKLB common shares upon the occurrence
of certain  conditions.  The amendment  further  provides that BAS will have the
right to  terminate  the merger  agreement in the event that any holders of PKLB
Class A Convertible  Preferred Stock exercise their  conversion  rights prior to
the effective  time of the merger and in the event that PKLB is unable to obtain
a waiver from the holders of PKLB Class B  Convertible  Preferred  Stock of such
holders'  anti-dilution rights triggered by the grant of the conversion right to
BAS.  The  amendment  also extends the date upon which the parties will have the
right to terminate the merger  agreement if the merger has not been  consummated
from December 31, 2002 to March 31, 2003.  Finally,  the amendment  modifies the
merger  consideration  payable  to the  holders  of  PKLB  Class  A  Convertible
Preferred  Stock  by  reducing  the  principal  amount  of the  6%  Subordinated
Convertible  Note such holders will receive in the merger from $6.00 per Class A
Convertible Preferred share (approximately $5 million in the aggregate) to $4.80
per share  (approximately  $4 million in the aggregate) and modifies the form of
the 6% Subordinated  Convertible Note to insert certain subordination provisions
required  by BAS's  lender.  All other terms of the merger  agreement  remain in
effect.

     On November 14, 2002,  PKLB executed a Secured  Convertible  Revolving Note
(the "Note") in the principal amount of up to $925,000 (presently  approximately
$668,500 in the  aggregate) to BAS to replace the existing  notes payable to BAS
and to allow the Company to borrow additional amounts from BAS. The Note carries
an annual interest rate of 8% and is due May 1, 2003.  PKLB Limited  Partnership
has  guaranteed  the  repayment  of the  Note to BAS and has  pledged  the  real
property  located  at 302  W.  Fayette  Street,  Baltimore,  Maryland  to BAS as
security for its guaranty.  The loans  provided for by the Note are secured by a
security interest in favor of BAS in all of the assets of PKLB.

     The conversion  rate of the PKLB Class B Preferred Stock may be affected by
the issuance of the Note. Upon the waiver by the sole holder of the PKLB Class B
Convertible  Preferred  Stock of this  adjustment to the conversion  rate of the
PKLB Class B Preferred Stock, the outstanding  principal amount of the Note will
be  convertible  by BAS at any time into PKLB common stock at a price of $0.1585
per PKLB common share (the  "Conversion  Price").  The  Conversion  Price is the
average of the closing  prices for PKLB  common  stock as reported by Nasdaq for
the twenty (20) trading days ending on November 8, 2002.  PKLB is in the process
of attempting to obtain such the waiver.



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     The  conversion  rate of the PKLB  Class A  Preferred  Stock  will  also be
affected by the  convertibility of the Note. Thus, BAS and PKLB have amended the
Merger  Agreement  to allow BAS to terminate  the Merger  Agreement in the event
that any of the  holders of the Class A  Convertible  Preferred  Stock  exercise
their conversion rights prior to the consummation of the merger.

     If the conditions to conversion  are satisfied,  BAS intends to convert the
Secured Convertible  Revolving Note prior to the record date of the PKLB special
meeting of shareholders  being held to approve the merger.  BAS expects that the
conversion  of the Note will result in BAS owning a number of PKLB common shares
in excess of the number required to approve the proposed merger on behalf of the
class of common  shares.  BAS intends to vote its shares for the adoption of the
Merger Agreement in order to ensure approval of the merger.

     BAS has filed with the  Securities  and Exchange  Commission a  preliminary
Registration Statement on Form S-4 relating to the proposed merger. The Form S-4
contains a preliminary  prospectus of BAS relating to the shares to be issued in
the merger and a  preliminary  proxy  statement of PKLB  relating to the special
meeting of shareholders of PKLB at which the merger will be considered and voted
upon by its  shareholders.  Investors and security holders are urged to read the
definitive proxy  statement/prospectus  when it becomes  available and any other
relevant  documents  filed with the  Securities and Exchange  Commission  before
making any  investment  decisions.  Investors and security  holders may obtain a
free copy of the definitive  proxy  statement/final  prospectus (when it becomes
available)  and other  documents  filed by BAS and PKLB with the  Securities and
Exchange Commission at the Commission's  website at www.sec.gov.  The definitive
proxy  statement/final  prospectus  and other  documents  filed by PKLB with the
Securities and Exchange Commission may also be obtained free of charge from PKLB
by requesting a copy in writing from PharmaKinetics  Laboratories,  Inc., 302 W.
Fayette Street, Baltimore,  Maryland 21201, Attention:  Chief Financial Officer,
or by telephone at (410) 385-4500.


Item 7. Financial Statements and Exhibits.

     The following exhibits are filed as a part of this report:

     (a) Not Applicable

     (b) Not Applicable

     (c) Exhibits

          10.1 Second Amendment, dated as of November 21, 2002, to the Agreement
               of  Merger  by  and  among  PharmaKinetics  Laboratories,   Inc.,
               Bioanalytical  Systems, Inc. and PI Acquisition Corp. dated as of
               June 20, 2002, as amended by a First  Amendment  dated as of July
               24, 2002

          10.2 Revised Form of 6% Subordinated Convertible Note

          10.3 Secured Convertible Revolving Note


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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 hereunto duly authorized.


                                     BIOANALYTICAL SYSTEMS, INC.
                                     (Registrant)



Date: November 22, 2002              By:  /s/ Peter T. Kissinger
                                          --------------------------------------
                                          Peter T. Kissinger
                                          President and Chief Executive Officer





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