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



                                  SCHEDULE 13D

                                (Amendment No. 1)

                    Under the Securities Exchange Act of 1934




                         BioSante Pharmaceuticals, Inc.
                         ------------------------------
                                (Name of Issuer)



                    Common Stock, $0.0001 par value per share
                    -----------------------------------------
                         (Title of Class of Securities)



                                   09065V 10 4
                                   -----------
                                 (CUSIP Number)


                                Stephen M. Simes
                         BioSante Pharmaceuticals, Inc.
                        111 Barclay Boulevard, Suite 280
                             Lincolnshire, IL 60069
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)




                                December 31, 2001
             (Date of Event Which Requires Filing of this Statement)



If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box: [ ]


                                  Page 1 of 8


------------------------                                      ------------------
CUSIP NO. 09065V 10 4            SCHEDULE 13D/A
--------------------------------------------------------------------------------
         1         NAMES OF REPORTING PERSONS
                   I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (entities only)

                   Stephen M. Simes

--------------------------------------------------------------------------------
         2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                   Not Applicable                      (a) [ ]

                                                       (b) [ ]
--------------------------------------------------------------------------------
         3         SEC USE ONLY

--------------------------------------------------------------------------------
         4         SOURCE OF FUNDS
                   Not Applicable
--------------------------------------------------------------------------------
         5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEMS 2(d) OR 2(e) [ ]

--------------------------------------------------------------------------------
         6         CITIZENSHIP OR PLACE OF ORGANIZATION
                   USA
--------------------------------------------------------------------------------
     NUMBER OF             7     SOLE VOTING POWER
      SHARES                              3,788,120 (see Item 5)
   BENEFICIALLY    -------------------------------------------------------------
     OWNED BY              8     SHARED VOTING POWER
       EACH                               0
     REPORTING
      PERSON       -------------------------------------------------------------
       WITH                9     SOLE DISPOSITIVE POWER
                                          3,788,120 (see Item 5)

                   -------------------------------------------------------------
                          10     SHARED DISPOSITIVE POWER
                                          0
--------------------------------------------------------------------------------
        11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                   3,788,120 (see Item 5)
--------------------------------------------------------------------------------
        12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN
                   SHARES [ ]
                   Not Applicable

--------------------------------------------------------------------------------
        13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
                   5.7%
--------------------------------------------------------------------------------
        14         TYPE OF REPORTING PERSON
                   IN
--------------------------------------------------------------------------------


                                  Page 2 of 8


         Pursuant to Rule 13d-2(a), this Schedule 13D Amendment No.1 amends Mr.
Simes' Schedule 13D dated August 13, 2001.

ITEM 1.    SECURITY AND ISSUER.

         This Amendment No. 1 to the Statement on Schedule 13D relates to the
common stock, par value $0.0001 per share, of BioSante Pharmaceuticals, Inc., a
Delaware corporation. The address of the principal executive offices of BioSante
is 111 Barclay Boulevard, Suite 280, Lincolnshire, IL 60069.

ITEM 2.    IDENTITY AND BACKGROUND.

         (a)      This statement is filed by and on behalf of Stephen M. Simes.

         (b)      Mr. Simes' principal business address is 111 Barclay
Boulevard, Suite 280, Lincolnshire, IL 60069.

         (c)      Mr. Simes is the Vice Chairman, President and Chief Executive
Officer of BioSante. BioSante's business address is 111 Barclay Boulevard, Suite
280, Lincolnshire, IL 60069. BioSante is a developmental stage biopharmaceutical
company.

         (d)      Mr. Simes has not, during the last five years, been convicted
in a criminal proceeding (excluding traffic violations or similar misdemeanors).

         (e)      Mr. Simes has not, during the last five years, been a party to
a civil proceeding of a judicial or administrative body of competent
jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting or
mandating activities subject to, United States federal or state securities laws
or finding any violation with respect to such laws.

         (f)      Mr. Simes is a citizen of the United States of America.

ITEM 3.    SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         Not applicable.

ITEM 4.    PURPOSE OF TRANSACTION.

         The purpose of this amendment is to report Mr. Simes' change in
beneficial ownership due to the increase in the number of shares issuable upon
exercise of outstanding options which are exercisable within 60 days.

         Mr. Simes may from time to time be granted additional shares of
BioSante common stock as stock bonuses by BioSante's Board of Directors or may
from time to time purchase shares of BioSante common stock, either in brokerage
transactions, in the over-the-counter market or in privately negotiated
transactions. Any decision to increase his holdings in BioSante will depend,
however, upon numerous factors, including without limitation the price of the
shares of BioSante common stock, the terms and conditions relating to their
purchase and sale, the prospects and financial condition of BioSante, general
economic conditions and stock and money market


                                  Page 3 of 8


conditions. At any time, Mr. Simes may also determine to dispose of some or all
of his shares of BioSante common stock, depending upon various similar
considerations.

         Except as otherwise provided in this Item 4 and other than as to
matters that Mr. Simes as Vice Chairman, President and Chief Executive Officer
of BioSante may consider and discuss with other BioSante officers and board
members from time to time, Mr. Simes does not have any present plans or
proposals which relate to or would result in:

         -        the acquisition by any person of additional securities of
                  BioSante or the disposition of securities of BioSante;

         -        an extraordinary corporate transaction, such as a merger,
                  reorganization or liquidation, involving BioSante;

         -        a sale or transfer of a material amount of assets of BioSante;

         -        any change in the present board of directors or management of
                  BioSante, including any plans or proposals to change the
                  number or term of directors or to fill any existing vacancies
                  on the board;

         -        any material change in the present capitalization or dividend
                  policy of BioSante;

         -        any other material change in BioSante's business or corporate
                  structure;

         -        changes in BioSante's certificate of incorporation, bylaws or
                  instruments corresponding thereto or other actions which may
                  impede the acquisition of control of BioSante by any person;

         -        causing a class of securities of BioSante to be delisted from
                  a national securities exchange or to cease to be authorized to
                  be quoted in an inter-dealer quotation system of a registered
                  national securities association;

         -        a class of equity securities of BioSante becoming eligible for
                  termination of registration pursuant to Section 12(g)(4) of
                  the Securities Exchange Act of 1934, or

         -        any action similar to any of those listed above.

ITEM 5.    INTEREST IN SECURITIES OF THE ISSUER.

         (a)      1.       Amount beneficially owned: Mr. Simes' beneficial
ownership includes: (1) 663,859 shares of BioSante common stock; (2) 2,936,761
shares of BioSante common stock issuable upon exercise of outstanding stock
options which are exercisable within 60 days; and (3) 187,500 shares of BioSante
common stock issuable upon exercise of outstanding warrants which are
exercisable within 60 days.

                  2.       Percent of class: 5.7%. The foregoing percentage is
calculated based on the 63,208,798 shares of BioSante common stock reported to
be outstanding by BioSante as of September 30, 2001.

         (b)      Number of shares as to which  Mr. Simes has:

                   (i)   Sole power to vote or to direct the vote....  3,788,120


                                  Page 4 of 8


                   (ii)  Shared power to vote or to direct the vote..          0

                   (iii) Sole power to dispose or to direct the
                         disposition of..............................  3,788,120

                   (iv)  Shared power to dispose or to direct the
                         disposition of..............................          0

         (c)      Other than additional stock options becoming vested as
described in Item 4 of this Amendment No. 1 to Schedule 13D, Mr. Simes has not
effected any transactions in BioSante common stock during the past 60 days.

         (d)      Not applicable.

         (e)      Not applicable.

ITEM 6.    CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
           RESPECT TO SECURITIES OF THE ISSUER.

         In January 1998, BioSante entered into a letter agreement with Mr.
Simes pursuant to which Mr. Simes serves as BioSante's Vice Chairman, President
and Chief Executive Officer. The term of this agreement continues until December
31, 2003, after which time the term will be automatically extended for three
additional years unless on or before October 1 immediately preceding the
extension, either party gives written notice to the other of the termination of
the agreement. Under this letter agreement, Mr. Simes is entitled to receive an
annual performance bonus of up to 50% of his then base salary if certain
performance criteria are met. BioSante's Board of Directors has in the past paid
this bonus in cash and in BioSante common stock. If Mr. Simes is terminated
without cause or upon a change in control or if he terminates his employment for
good reason, all of his BioSante stock options will become immediately
exercisable and will remain exercisable for a period of one year (for the
remainder of their term in the event of a change in control), and he will be
entitled to a minimum severance payment equal to 12 months base salary.

         Mr. Simes holds stock options to purchase an aggregate of 3,570,313
shares of BioSante common stock at exercise prices ranging between $0.23 and
$0.40 per share.

         In connection with BioSante's May 1999 private placement, BioSante
entered into a Securities Purchase Agreement, Registration Rights Agreement and
Warrants with the investors, which included Mr. Simes. Under the Registration
Rights Agreement, the holders of BioSante common stock and warrants purchased in
BioSante's May 1999 private placement are entitled to certain registration
rights under the Securities Act of 1933.

         In connection with BioSante's April 2001 private placement, BioSante
entered into Subscription Agreements and Warrants with the investors, which
included Mr. Simes. Under these agreements and warrants, BioSante agreed to use
its reasonable best efforts to cause a registration statement to be filed and
remain effective until the earlier of (1) the sale of all the shares of BioSante
common stock covered by the registration statement; or (2) such time as the
selling stockholders named in the registration statement become eligible to
resell the shares of BioSante common stock and the shares of BioSante common
stock issuable upon exercise of warrants pursuant to Rule 144(k) under the
Securities Act of 1933.


                                  Page 5 of 8


         Except as described herein, there are no other contracts, arrangements,
understandings or relationships between Mr. Simes and any other person with
respect to any securities of BioSante.

ITEM 7.    MATERIAL TO BE FILED AS EXHIBITS.

               Exhibit No.                      Description
               -----------                      -----------

                  1        Employment Agreement, dated January 21, 1998, between
                           BioSante Pharmaceuticals, Inc. and Stephen M. Simes,
                           as amended

                  2        Form of Incentive Stock Option Agreement between
                           BioSante Pharmaceuticals, Inc. and Stephen M. Simes

                  3        Securities Purchase Agreement, dated May 6, 1999,
                           between BioSante Pharmaceuticals, Inc. and certain
                           stockholders of BioSante Pharmaceuticals, Inc.

                  4        Registration Rights Agreement, dated May 6, 1999,
                           between BioSante Pharmaceuticals, Inc. and certain
                           stockholders of BioSante Pharmaceuticals, Inc.

                  5        Form of Warrant issued in connection with May 1999
                           Private Placement


                  6        Form of Subscription Agreement in connection with the
                           April 2001 Private Placement

                  7        Form of Warrant issued in connection with April 2001
                           Private Placement


                                   SIGNATURES


         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.



Date:  February 12, 2002                              /s/ Stephen M. Simes
                                                      --------------------------
                                                      Stephen M. Simes


                                  Page 6 of 8



                                  EXHIBIT INDEX



 Exhibit No.                               Description                                      Method of Filing
 ----------                                -----------                                      ----------------
                                                                             
      1         Employment Agreement, dated January 21, 1998, between BioSante
                Pharmaceuticals, Inc. and Stephen M. Simes, as amended..........   Incorporated by reference to
                                                                                   Exhibit 10.16 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form 10-SB, as amended (File
                                                                                   No. 0-28637)

      2         Form of Incentive Stock Option Agreement between BioSante
                Pharmaceuticals, Inc. and Stephen M. Simes.......................  Incorporated by reference to
                                                                                   Exhibit 2 contained in Mr. Simes'
                                                                                   Schedule 13D filed on August 22,
                                                                                   2001 (File No. 5-60689)


      3         Securities Purchase Agreement, dated May 6, 1999, between
                BioSante Pharmaceuticals, Inc. and certain stockholders of
                BioSante Pharmaceuticals, Inc. .................................   Incorporated by reference to
                                                                                   Exhibit 10.14 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form 10-SB, as amended
                                                                                   (File No. 0-28637)

      4         Registration Rights Agreement, dated May 6, 1999, between
                BioSante Pharmaceuticals, Inc. and certain stockholders of
                BioSante Pharmaceuticals, Inc. .................................   Incorporated by reference to
                                                                                   Exhibit 10.13 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form 10-SB, as amended
                                                                                   (File No. 0-28637)

      5         Form of Warrant issued in connection with May 1999 Private
                Placement.......................................................   Incorporated by reference to
                                                                                   Exhibit 4.1 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form 10-SB, as amended
                                                                                   (File No. 0-28637)



                                  Page 7 of 8




 Exhibit No.                               Description                                      Method of Filing
 ----------                                -----------                                      ----------------
                                                                             
      6         Form of Subscription Agreement in connection with the April 2001
                Private Placement...............................................   Incorporated by reference to
                                                                                   Exhibit 10.20 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form SB-2
                                                                                   (File No. 333-64218)

      7         Form of Warrant issued in connection with April 2001 Private
                Placement.......................................................   Incorporated by reference to
                                                                                   Exhibit 4.2 contained in
                                                                                   BioSante's Registration Statement
                                                                                   on Form SB-2
                                                                                   (File No. 333-64218)









                                  Page 8 of 8