Rigel Announces Conference Call and Webcast to Report First Quarter 2015 Financial Results and Pipeline Update

SOUTH SAN FRANCISCO, Calif., April 30, 2015 /PRNewswire/ -- Rigel Pharmaceuticals, Inc. (Nasdaq: RIGL) today announced that it will report its first quarter 2015 financial results after market close on Thursday, May 7, 2015.  Rigel senior management will follow the announcement with a live conference call and webcast at 4:30pm Eastern Time (1:30pm Pacific Time) to discuss the financial results and provide an update on the Company's clinical programs and pipeline.

Participants can access the live conference call by dialing 1-855-892-1489 (domestic) or 1-720- 634-2939 (international) and using the Conference ID number 39677401.  The conference call will also be webcast live and can be accessed from Rigel's website at www.rigel.com.   The webcast will be archived and available for replay for 30 days after the call via the Rigel website.

About Rigel

Rigel Pharmaceuticals, Inc. is a clinical-stage drug development company that discovers and develops novel, small-molecule drugs for the treatment of inflammatory and autoimmune diseases, cancers, and muscle disorders. Rigel's pioneering research focuses on signaling pathways that are critical to disease mechanisms. Rigel currently has the following product candidates in development: fostamatinib, an oral spleen tyrosine kinase (SYK) inhibitor, which is in Phase 3 clinical trials for ITP and initiating a Phase 2 clinical trial for IgAN; R348, an ophthalmic JAK/SYK inhibitor, in a Phase 2 clinical trial for dry eye in ocular graft-versus-host disease (GvHD); two oncology product candidates in Phase 1 development with partners BerGenBio AG and Daiichi Sankyo; and two preclinical programs with partners AstraZeneca, for R256 in asthma, and Bristol-Myers Squibb, for TGF beta inhibitors in immuno-oncology.

Contact: Ryan D. MaynardPhone: 650.624.1284Email: [email protected]

Media Contact: Susan C. Rogers, Rivily, Inc.Phone: 650.430.3777Email: [email protected]

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SOURCE Rigel Pharmaceuticals, Inc.