Rigel commences R343 and R333 Phase 2 studies in allergic asthma, discoid lupus erythematosus

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Rigel Pharmaceuticals, Inc. (Nasdaq: RIGL) today announced that it has commenced Phase 2 clinical studies with two of the company's most advanced proprietary therapeutic product candidates. R343 is an inhaled SYK inhibitor that is being evaluated as a potential treatment for allergic asthma. R333 is a topical JAK/SYK inhibitor aimed at treating various phases of discoid lupus erythematosus (DLE, or lupus of the skin). 

"R343 and R333 are leading the way in a substantial lineup of proprietary product candidates in Rigel's pipeline," said James M. Gower, chairman and chief executive officer of Rigel.  "In addition to fostamatinib, which is in Phase 3 with our partner AstraZeneca, we now have two products in Phase 2 clinical studies and several more in, or preparing to enter, the clinic. Rigel continues to demonstrate its R&D productivity," he added.

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