Exhibit 3

[*] indicates that a confidential portion of the text of this agreement has been
omitted. The non-public information has been filed separately with the
Securities and Exchange Commission.


                     SEVENTH AMENDMENT TO LICENSE AGREEMENT


     This Seventh Amendment to License Agreement (hereinafter "Amendment") is
made and effective on November 10, 2004, among XOMA TECHNOLOGY LTD., a company
organized and existing under the laws of Bermuda and having a place of business
at 2910 Seventh Street, Berkeley, California 94710 and XOMA IRELAND LIMITED, a
company organized and existing under the laws of Ireland and having a place of
business at Shannon Airport House, Shannon, Co. Clare, Ireland (hereinafter
collectively referred to as "CORPORATION"), and NEW YORK UNIVERSITY, a
corporation organized and existing under the laws of the State of New York and
having a place of business at 70 Washington Square South, New York, New York
10012 (hereinafter "NYU").

                                   WITNESSETH


     WHEREAS, CORPORATION's predecessor in interest and NYU entered into a
certain agreement made and effective as of August 6, 1990, as amended and
restated on September 1, 1993 and as subsequently amended on August 1, 1996,
June 12, 1997, December 23, 1998, June 25, 1999 and January 25, 2000 (as so
amended and restated, the "Agreement"), pursuant to which, inter alia,
CORPORATION's predecessor in interest undertook to sponsor the NYU Research
Project (as such term is defined in the Agreement) and NYU granted to
CORPORATION's predecessor in interest the License (as such term is defined in
the Agreement); and



                                      -2-


     WHEREAS, CORPORATION and NYU wish to amend the Agreement as specified
herein;

     NOW, THEREFORE, in consideration of the premises and the covenants,
conditions and promises set forth below, the parties hereto hereby agree as
follows:

     1. Effect of Amendment. Except as expressly provided for herein, all terms
     and conditions of the Agreement shall remain in full force and effect.

     2. Certain Defined Terms. Terms which are defined in the Agreement shall
     have the same meanings when used in this Amendment, unless a different
     definition is given herein.

     3. Term of Agreement. Subsection 7.b. of the Agreement shall be, and hereby
     is, amended by replacing the word and numeral "fifteen (15)" in clause (i)
     with the word and numeral "[*]."

     4. Further Sublicenses. Subsection 7.c.(3) of the Agreement shall be, and
     hereby is, amended to read in its entirety as follows:

          the sublicensee may grant further sublicenses so long as such further
          sublicensees agree to the same terms and conditions herein as are
          applicable to the original sublicensee;


          5. Various Payment Terms.



                                      -3-


          (a) The language of Subsection 9.a.(2) of the Agreement is hereby
     deleted and replaced in its entirety so that it reads as follows:

          (2) Non-refundable, milestone payments as follows: within forty five
          (45) days of the first approval by the United States Food & Drug
          Administration ("FDA") or the European Medicines Evaluation Agency
          ("EMEA"), as applicable, of a marketing application submitted by
          CORPORATION or its direct or indirect sublicensee relating to a
          Licensed Product for the treatment of each of the medical conditions
          referred to by Category (as defined below) in the table set forth
          below, the corresponding amounts in the table set forth below:

          ---------------- -------------------------- -------------------------
                             Amount Payable in the      Amount Payable in the
               Category      Event of FDA Approval      Event of EMEA Approval
          ---------------- -------------------------- -------------------------
          Category 1       $[*]                       $[*]
          ---------------- -------------------------- -------------------------
          Category 2       $[*]                       $[*]
          ---------------- -------------------------- -------------------------
          Category 3       $[*]                       $[*]
          ---------------- -------------------------- -------------------------
          Category 4       $[*]                       $[*]
          ---------------- -------------------------- -------------------------

          For purposes hereof, (A) "Category" shall mean Category 1, Category 2,
          Category 3 or Category 4, each of which are defined below and are
          mutually exclusive; (B) "Category 1" shall mean [*]; (C) "Category 2"
          shall mean [*]; (D) "Category 3" shall mean [*]; and (E) "Category 4"
          shall mean [*].


          (b) The language of Subsection 9.a.(3) of the Agreement is hereby
     deleted and replaced in its entirety so that it reads as follows:

          a royalty of [*] percent ([*]%) of the Net Sales of any Licensed
          Product described in Section 1.1(aa) or (bb) and sold by CORPORATION
          or its sublicensees (including CORPORATION Entity) for any diagnostic,
          prophylactic and/or therapeutic uses, for as long as CORPORATION
          maintains the License, except that if a Licensed Product described in


                                      -4-


          Section 1.1(aa) or (bb) is covered solely by an NYU Patent having
          claims directed to the cDNA as described in Section 1.e.(i)(4)
          (including in circumstances where a third party is producing and
          selling a BPI Product by a manufacturing process using means other
          than such claimed cDNA), then the royalty owed by CORPORATION shall be
          reduced to [*] percent ([*]%).


          (c) The language of Subsection 9.a.(4) of the Agreement is hereby
     deleted and replaced in its entirety so that it reads as follows:

          a royalty of [*] percent ([*]%) of the Net Sales of any Licensed
          Product described in Section 1.1(cc) or (dd) and sold by CORPORATION
          or its sublicensees (including CORPORATION Entity) for any diagnostic,
          prophylactic and/or therapeutic uses, for as long as CORPORATION
          maintains the License, except that if a Licensed Product described in
          Section 1.1(cc) or (dd) is covered solely by an NYU Patent having
          claims directed to the cDNA as described in Section 1.e.(i)(4)
          (including in circumstances where a third party is producing and
          selling a BPI Product by a manufacturing process using means other
          than such claimed cDNA), then the royalty owed by CORPORATION shall be
          reduced to [*] percent ([*]%).


          (d) The language of Subsection 9.d. of the Agreement is hereby deleted
     and replaced in its entirety so that it reads as follows:

          Until such time as [*], the royalties otherwise due to NYU under
          Section 9.a.(3) and/or 9.a.(4) hereof, whichever is applicable, shall
          be reduced to [*] percent ([*]%) of the Net Sales of any Licensed
          Product (before giving effect to the provisions of Section 9.a.(3) or
          9.a.(4), as the case may be, that, when applicable, would reduce such
          royalty to [*] percent ([*]%)) .


     6. Notice to Sublicensee; Ability to Cure. Subsection 13.c. of the
     Agreement shall be, and hereby is, amended by adding to the end thereof the
     following:



                                      -5-


          So long as a valid sublicense hereunder remains in effect between
          CORPORATION and Zephyr Sciences Inc. ("Sublicensee"),

          (i)  NYU shall provide written notice to Sublicensee (A) of any breach
               or default by CORPORATION hereunder at least 20 days prior to any
               termination of this Agreement by NYU for cause based on such
               breach or default and shall permit Sublicensee, in its sole
               discretion, to cure any such breach or default by CORPORATION
               hereunder within such 20-day notice period and (B) at least ten
               (10) days prior to any other termination of this Agreement by
               NYU. In the event Sublicensee does not exercise its right to cure
               as provided in clause (A) above or receives the notice provided
               for in clause (B) above, Sublicensee shall have the right (but
               not the obligation), exercisable only by written notice to NYU
               for a thirty (30) day period from the termination of this
               Agreement, to enter into a license agreement with NYU upon terms
               no less favorable to Sublicensee than the terms hereof then in
               effect, provided that at such time as Sublicensee is no longer
               obligated to pay CORPORATION royalties under the agreement
               between CORPORATION and Sublicensee that includes the sublicense
               hereunder (i) the royalty percentage payable to NYU under
               Subsections 9.a.(3) and 9.a.(4) of the Agreement (as specified in
               Paragraphs 5(b) and 5(c) of this Amendment) shall be [*] percent
               ([*]%) instead of [*] percent ([*]%); and (ii) the royalty
               percentage payable to NYU under Subsection 9.d of the Agreement
               (as specified in Paragraph 5(d) of this Amendment) shall be [*]
               percent ([*]%) instead of [*] percent ([*]%); and

          (ii) there shall be no amendment to the terms or conditions of this
               Agreement without the prior written consent of Sublicensee;
               provided, however, that adjustments in the financial terms
               favorable to CORPORATION may occur without Sublicensee's prior
               consent (so long as such adjustment does not diminish or
               contravene any rights of Sublicensee).

     7. Headings. The descriptive headings contained in this Amendment are
     included for convenience and reference only and shall not be held to
     expand, modify or aid in the interpretation, construction or meaning of
     this Amendment or the Agreement.



                                      -6-


     8. Counterparts. This Amendment may be executed in one or more
     counterparts, each of which shall be an original and all of which shall
     constitute together the same document.




                                      -7-




     IN WITNESS WHEREOF, the parties hereto have executed this Amendment as
follows:

NEW YORK UNIVERSITY                 XOMA TECHNOLOGY LTD.

By:     _________________________   By:    ______________________________
        Abram M. Goldfinger                 G. James Reynolds
        Executive Director,                 Director
        Industrial Liaison/
        Technology Transfer
                                    XOMA IRELAND LIMITED

                                    SIGNED by


                                    Alan Kane, Director,
                                    duly authorized for
                                    and on behalf of XOMA
                                    IRELAND LIMITED in
                                    the presence of:

                                    ___________________________