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EXHIBIT A
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13G with
respect to the Common Stock of IntraBiotics Pharmaceuticals, Inc., dated as of
September 5, 2000, is, and any amendments thereto (including amendments on
Schedule 13D) signed by each of the undersigned shall be, filed on behalf of
each of us pursuant to and in accordance with the provisions of Rule 13d-1(f)
under the Securities Exchange Act of 1934.
Date: September 5, 2000 INVESTOR (GUERNSEY) LIMITED
By: /S/ GUJE HOLMBERG
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Name: Guje Holmberg
Title: Director
INVESTOR AB
By: /S/ MARCUS WALLENBERG
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Name: Marcus Wallenberg
Title: Chief Executive Officer
