Rigel's R788 Demonstrates Significant Improvement in Rheumatoid Arthritis in Phase 2 Clin...(ming and success of clinical trials and ...),Health

Date:12/13/2007

ming and success of clinical trials and the commercialization of product candidates, potential problems that may arise in the clinical testing and approval process and Rigel's need for additional capital, as well as other risks detailed from time to time in Rigel's SEC reports, including its Form 10-Q for the quarter ended September 30, 2007. Rigel does not undertake any obligation to update forward-looking statements.

Contact: Raul Rodriguez

Phone: 650.624.1302

Email: rrodriguez@rigel.com

Media Contact: Susan C. Rogers, Alchemy Consulting, Inc.

Phone: 650.430.3777

Email: susan@alchemyemail.com

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SOURCE Rigel Pharmaceuticals, Inc. Copyright©2007 PR Newswire. All rights reserved

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