Document:

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                                                                   Exhibit 10.23

                          AMENDMENT TO AGREEMENT DATED
                                 MARCH 29, 2002

         THIS AMENDMENT (the "Amendment") to the Agreement by and between MAS
Capital Inc. ("MAS") and Hopkins Capital Group II, LLC, ("Hopkins Capital
Group") as of the 29th day of March, 2002 (the "Agreement"), is made and entered
into by and between MAS and Hopkins Capital Group as of this 17th of April 2002.

                              W I T N E S S E T H:

         WHEREAS, it has been recently discovered that the Agreement contains an
error to wit, the Agreement states that MAS had been being granted an option to
purchase 100,000 shares of BioDelivery Sciences International, Inc. ("BDSI" or
the "Company") common stock (evidenced by Option No. NQ-00019 before the planned
1-for-4.370 reverse stock split) ("MAS Option"); and

         WHEREAS, the reference to ownership of the MAS Option No. NQ-00019 is
inaccurate and that said option is owned by Aaron Tsai, individually, and is not
owned by MAS.

         NOW, THEREFORE, for good and valuable consideration in hand received,
including the mutual covenants and promises of the parties set forth herein, the
parties mutually agree as follows:

         1. The Agreement is hereby amended to reflect that the MAS Option is
owned by Aaron Tsai and is not owned by MAS.

         2. By separate agreement (a copy of which is attached hereto as Exhibit
"A"), Aaron Tsai has surrendered to BDSI Option No. NQ-00019 and has authorized
BDSI to cancel said Option No. NQ-00019. Exhibit "A" specifically references
that, as a result of said surrender and cancellation of Option No. NQ-00019,
Aaron Tsai shall have no right or entitlement thereunder or otherwise, to
acquire any securities of BDSI.

         3. MAS hereby represents and warrants that it has no interest in Option
No. NQ-00019 nor does it have any right or entitlement to acquire any shares of
capital stock from BDSI.

         4. This Amendment constitutes the entire understanding of the parties
concerning the subject matter contained herein.

         5. This Amendment shall be governed by and construed in accordance with
the laws of the State of Florida.

         IN WITNESS WHEREOF, the parties set their hand and seal on the day and
year first above written.

MAS Capital Inc.                             Hopkins Capital Group II, LLC

By:       Aaron Tsai                         By:      /s/ Francis E. O'Donnell
   -------------------------------              --------------------------------
      Aaron Tsai, President                       Francis E. O'Donnell, Manager<PAGE>
                                                                   Exhibit 10.24

                                   AGREEMENT

         THIS AGREEMENT is made and entered into by and between Aaron Tsai ("Mr.
Tsai") and BioDelivery Sciences International, Inc. ("BDSI") as of this 17th day
of April, 2002.

                               W IT N E S S E T H:

         WHEREAS, Mr. Tsai is the owner of Option No. NQ-00019 which entitled
him to purchase 100,000 shares of BDSI common stock, before the planned
1-for-4.370 reverse stock split, (the "Tsai Option"); and

         WHEREAS, Mr. Tsai is the President and principal stockholder of MAS
Capital Inc.; and

         WHEREAS, by agreement dated March 29, 2002 by and between MAS Capital
Inc. and Hopkins Capital Group II, LLC, Option No. NQ-00019 was mistakenly
referenced as being owned by and granted to MAS Capital Inc.; and

         WHEREAS, Mr. Tsai is desirous of surrendering and canceling Option
Number NQ-00019 to BDSI and authorizing BDSI to cancel said option.

         NOW, THEREFORE, for good and valuable consideration in hand received,
including the mutual covenants and promises of the parties set forth herein, and
the consideration to be delivered hereunder, the parties mutually agree as
follows:

         1. Mr. Tsai hereby surrenders to BDSI Option No. NQ-00019 and
authorizes BDSI to cancel Option NQ-00019. As a result of said surrender and
subsequent cancellation, Mr. Tsai will have no right or entitlement under Option
No. NQ-00019 or otherwise to acquire any securities of BDSI.

         2. Upon execution of this Agreement, Mr. Tsai shall deliver the
Surrender of Option in the form of Exhibit "A" to BDSI.

         3. Mr. Tsai represents and warrants to BDSI that it has the right and
authority to: (i) surrender for cancellation Option No. NQ-00019 without the
consent or approval of any party; (ii) he is the sole and complete owner of
Option No. NQ-00019, subject to no prior assignment, sale, pledge or
hypothecation prior to the date hereof; (iii) reference in the Agreement by and
between MAS Capital Inc. and Hopkins Capital Group II, LLC dated March 29, 2002
that Option No. NQ-00019 was granted to and owned by MAS Capital Inc. was in
error and MAS Capital Inc. has no right, title or interest in or to Option No.
NQ-00019, (iv) following the delivery of Exhibit "A" hereunder, Mr. Tsai shall
have no option or other right to acquire any shares of BDSI; and (v) Mr. Tsai
shall has no right to receive any consideration in any form or nature from BDSI.

         4. This Agreement constitutes the entire understanding of the parties
and shall not be amended or otherwise altered except in writing, executed by the
parties hereto.
<PAGE>
         5. This Agreement shall be governed by and construed in accordance with
the laws of the State of Florida.

         IN WITNESS WHEREOF, the parties set their hand and seal on the day and
year first above written.

         /s/ Aaron Tsai                      BioDelivery Sciences International,
-----------------------------------          Inc.
Aaron Tsai

                                             By:   /s/ Francis E. O'Donnell
                                                --------------------------------
                                                 Francis E. O'Donnell, President
<PAGE>
                                  EXHIBIT "A"
                               SURRENDER OF OPTION

         For value received, Mr. Tsai hereby surrenders, sells, assigns and
transfers unto BioDelivery Sciences International, Inc., Option No. NQ-00019, a
copy of which is attached, to purchase 100,000 shares (before adjustment for the
1-for-4.370 reverse stock split) of common stock of BioDelivery Sciences
International, Inc. By such surrender, sale, assignment and transfer, Mr. Tsai
expressly relinquishes any and all rights, title and interest in and to Option
No. NQ-00019 and the right to acquire shares of common stock of BioDelivery
Sciences International, Inc. as set forth therein and irrevocably authorizes
BioDelivery Sciences International, Inc. and canceling Option No. NQ-00019.
Dated:            3-29              , 2002
         ---------------------------

                                        /s/  Aaron Tsai
                                        ----------------
                                             Aaron Tsai

STATE OF  California
COUNTY OF Los Angeles

         Acknowledged and subscribed before me on MARCH 29TH, 2002 by Aaron
Tsai, who is personally known to me or who has produced DRIVERS LICENSE as
identification.

                                              /s/ Andrea Maihe
                                              -----------------
                                                  Notary Public

         [NOTARY SEAL]
---------------------------------------------------------------
Print, type, or stamp commissioned name and affix official seal<PAGE>
                                                                     EXHIBIT 4.5

                       AMENDMENT NO. 3 TO RIGHTS AGREEMENT

         This AMENDMENT NO. 3, dated as of March 18, 2002, is between FOOT
LOCKER, INC., a New York corporation (the "Company"), having its principal
office at 112 West 34th Street, New York, New York 10120, and THE BANK OF NEW
YORK, as successor Rights Agent ("BNY"), having its principal office at One Wall
Street, New York, New York 10286.

         WHEREAS, on January 16, 2002 the Board of Directors of the Company
authorized the appointment of BNY as successor transfer agent and registrar to
EquiServe Trust Company, N.A. ("EquiServe"), effective March 18, 2002;

         WHEREAS, on January 16, 2002 the Board of Directors of the Company
authorized the assignment to BNY of the Rights Agreement, in effect between the
Company and EquiServe dated as of March 11, 1998 and amended as of May 28, 1999
(the "Rights Agreement"), such assignment to be effective as of March 18, 2002;

         WHEREAS, pursuant to Section 27 of the Rights Agreement, the Company
desires to amend the Rights Agreement to formally reflect the change in the
Rights Agent from EquiServe to BNY, as set forth below.

         NOW, THEREFORE, the Rights Agreement is hereby amended as follows:

         1. The parties clause at the beginning of the Rights Agreement is
amended by deleting the reference to "EquiServe Trust Company N.A., a national
banking association with a principal office in Jersey City, New Jersey (the
'Rights Agent')" and substituting in lieu thereof "The Bank of New York, as
Successor Rights Agent (the 'Bank')."

         2. Section 3(c) of the Rights Agreement is amended by deleting the
first sentence of the legend and substituting in lieu thereof the following:

                  This certificate also evidences and entitles the holder hereof
                  to certain Rights as set forth in the Rights Agreement between
                  the Company and The Bank of New York, as successor Rights
                  Agent to EquiServe Trust Company of New York, dated as of
                  March 11, 1998, as amended (the "Rights Agreement"), the terms
                  of which are hereby incorporated herein by reference and a
                  copy of which is on file at the principal offices of the
                  Company.

         4. This Amendment No. 3 shall be deemed effective as of March 18, 2002
as if executed by both parties hereto on such date. Except as amended hereby,
the Rights Agreement shall remain in full force and effect and shall be
otherwise unaffected hereby.

         5. This Amendment No. 3 shall be deemed to be a contract made under the
laws of the State of New York and for all purposes shall be governed by and
construed in accordance with the laws of such state applicable to contracts to
be made and performed entirely within such state. This Amendment No. 3 may be
executed in any number of counterparts, each of such counterparts shall for all
purposes be deemed to be an original, and all such counterparts shall together
constitute but one and the same instrument. If any term, provision, covenant or
restriction of this Amendment No. 3 is held by a court of competent jurisdiction
or other authority to be invalid, illegal, or unenforceable, the remainder of
the terms, provisions, covenants and restrictions of this Amendment No. 3 shall
remain in full force and effect and shall in no way be affected, impaired or
invalidated.
<PAGE>
IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 3 to be
duly executed as of the date and year first above written.

                                                FOOT LOCKER, INC.

                                                By:/s/ Gary M. Bahler
                                                   -----------------------------
                                                   Gary M. Bahler
                                                   Senior Vice President,
                                                   General Counsel and Secretary

                                                THE BANK OF NEW YORK, as
                                                successor Rights Agent

                                                By:/s/ Alexander Pabon
                                                   -----------------------------
                                                   Alexander Pabon
                                                   Assistant Vice President

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