AGREEMENT REGARDING JOINT FILING
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AGREEMENT REGARDING JOINT FILING
The undersigned, Biotechnology Value Fund, L.P., a Delaware limited partnership, Biotechnology Value Fund II, L.P., a Delaware limited partnership, BVF Investments, L.L.C., a Delaware limited liability company, BVF Partners L.P., a Delaware limited partnership, and BVF Inc., a Delaware corporation, hereby agree and acknowledge that the information required by Schedule 13D, to which this Agreement is attached as an exhibit, is filed on behalf of each of them. The undersigned further agree that any amendments or supplements thereto shall also be filed on behalf of each of them.
| Dated: | October 18, 2002 | |||
| BIOTECHNOLOGY VALUE FUND, L.P. | ||||
By: |
BVF Partners L.P., its general partner |
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By: |
BVF Inc., its general partner |
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By: |
/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ President |
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BIOTECHNOLOGY VALUE FUND II, L.P. |
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By: |
BVF Partners L.P., its general partner |
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By: |
BVF Inc., its general partner |
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By: |
/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ President |
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BVF INVESTMENTS, L.L.C. |
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By: |
BVF Partners L.P., its manager |
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By: |
BVF Inc., its general partner |
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By: |
/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ President |
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BVF PARTNERS L.P. |
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By: |
BVF Inc., its general partner |
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By: |
/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ President |
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BVF INC. |
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By: |
/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇ President |
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AGREEMENT REGARDING JOINT FILING