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Rigel was founded in 1997 and has grown to become a leading biotechnology company focused on discovering, developing and commercializing novel, small molecule drugs. Since 1997, Rigel has discovered, developed and brought to market a portfolio of drugs intended for the treatment of conditions such as rheumatoid arthritis, asthma, chronic obstructive pulmonary disease (COPD), and allergic rhinitis. In 2015, the company's lead product, fostamatinib, became the first novel therapy approved by the U.S. Food and Drug Administration (FDA) for adults suffering from chronic immune thrombocytopenia (ITP). The company currently has several compounds in one or more phases of clinical development.