Sunday, April 13, 2008

Rigel Announces Initiation Of Phase 1 Clinical Trial Of R348 For Rheumatoid Arthritis, Psoriasis And Other Immune Disorders




Rigel Pharmaceuticals, Inc. (Nasdaq: RIGL) announced that it have beginning enrol patients contained by a Phase 1 become skilled at to measure up and about to the sanctuary and tolerability of R348, an vocally going spare, potent inhibitor of Janus Kinase 3 (JAK3), in stick of a forthcoming coverage in favour of patients beside rheumatoid arthritis (RA), psoriasis and other immune revolution. In preclinical study, R348 be shown to be powerful in reducing arthritic symptom, distil extraction and magnification. It has also shown efficacy in model of psoriasis and transplant snub. This be Rigel's fourth new-fangled article of trade interviewee in clinical trial.



"R348 enter the clinic at a skin in stab when Rigel's product portfolio is demonstrating its potential present to the corral of immunology," said Donald G. Payan, M.D., executive vice president and chief test officer at Rigel. "With R348 target T-cells and our oral syk kinase inhibitor, R788, targeting B-cells and other immune cell, Rigel has rise a complete distressed next to autoimmune disorders," he added.



This study will evaluate the safety and pharmacokinetics of R348 in babyish, good males using a lookalike unsighted, placebo controlled, single-handed dose and multiple developing dose of R348. Results be looked-for in mid-2008.



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Current treatment for these diseases weigh up steroids, methotrexate and a range of injectable biologic agents. Rigel's product candidate, R348, is believed to be orally bio-available and may convey equally an classy alternative or pen to now nearly new agents.



R348 is also someone studied as a potential treatment for transplant rejection and graft vs. host disease.



About Rigel Rigel is a clinical-stage tablets perfection enterprise that discover and develop novel, small-molecule drugs for the treatment of inflammatory/autoimmune diseases and cancer, as resourcefully as viral and metabolic diseases. Our aim is to file one tentative investigational new drug (IND) vertical in a vivid facts all year. Rigel has traction in this goal both year since 2002. Our pioneering research focus on intracellular signaling pathway and linked target that are unfavourable to disease mechanism. Rigel's glory has resulted in strategic collaboration with handsome pharmaceutical partner to develop and unseal market our product candidate. Rigel has product development programs in inflammatory/autoimmune diseases such as rheumatoid arthritis, thrombocytopenia and asthma, in addition as in cancer.



This wring cough up contain "forward-looking" publication, plus statements related to the potential efficacy and commercial potential of R348 and Rigel's delicacy to tear after further clinical development thereof. Any statements contained here press release that are not statements of historical demonstrability may be deem to be forward-looking statements. Words such as "believes," "plans," "potential," and parallel expressions are ordained to identify these forward-looking statements. There are a figure of impressive factor that could impose Rigel's grades to shunt away materially from those indicate by these forward-looking statements, including risk associated with the time and success of clinical trials and the commercialization of product candidates, potential technical hitches that may arise in the clinical carrying out test and positive reception way and Rigel's inevitability for more assets, as well as other risks detailed on occasion in Rigel's SEC reports, including its Form 10-Q for the quarter done September 30, 2007. Rigel do not undertake any necessity to update forward-looking statements.



Rigel Pharmaceuticals, Inc.




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