First SYK inhibitor for the treatment of adult chronic ITP

SOUTH SAN FRANCISCO, CA, USA I October 11, 2018 I Rigel Pharmaceuticals, Inc. (Nasdaq: RIGL) today announced that the European Medicines Agency (EMA) has validated the Marketing Authorization Application (MAA) for fostamatinib in adult chronic immune thrombocytopenia. The validation was received on October 4, 2018 and initiated the MAA review process. The company anticipates a decision from the Committee on Human Medicinal Products by the fourth quarter of 2019.  Currently, fostamatinib is commercially available in the U.S. under the brand name TAVALISSE™ (fostamatinib disodium hexahydrate), which is the first and only SYK inhibitor indicated for the treatment of thrombocytopenia in adult patients with chronic ITP who have had an insufficient response to a previous treatment.

“The EMA’s validation of our MAA is an important milestone in the execution of our global commercial strategy for fostamatinib for the treatment of adult chronic ITP,” said Raul Rodriguez, president and CEO of Rigel. “Europe is the second largest ITP market, and we are working diligently to secure a European commercial collaboration in 2019.  We are committed to making fostamatinib available to physicians worldwide for patients affected with chronic ITP.”

The MAA review follows the U.S. Food and Drug Administration (FDA) approval and commercial launch in the U.S. of TAVALISSE.

About ITP
In patients with ITP, the immune system attacks and destroys the body’s own blood platelets, which play an active role in blood clotting and healing. Common symptoms of ITP are excessive bruising and bleeding.  People suffering with chronic ITP may live with an increased risk of severe bleeding events that can result in serious medical complications or even death. Current therapies for ITP include steroids, blood platelet production boosters (TPOs) and splenectomy. However, not all patients are adequately treated with existing therapies. As a result, there remains a significant medical need for additional treatment options for patients with ITP.

About TAVALISSE
Indication 
TAVALISSE™ (fostamatinib disodium hexahydrate) tablets are indicated in the U.S. for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment.

About Rigel (www.rigel.com
Rigel Pharmaceuticals, Inc., is a biotechnology company dedicated to discovering, developing and providing novel small molecule drugs that significantly improve the lives of patients with immune and hematologic disorders, cancer and rare diseases. Rigel’s pioneering research focuses on signaling pathways that are critical to disease mechanisms. The company’s first FDA approved product is TAVALISSE™ (fostamatinib disodium hexahydrate), an oral spleen tyrosine kinase (SYK) inhibitor, for the treatment of adult patients with chronic immune thrombocytopenia who have had an insufficient response to a previous treatment. Rigel’s current clinical programs include Phase 2 studies of fostamatinib in autoimmune hemolytic anemia and IgA nephropathy. In addition, Rigel has product candidates in development with partners BerGenBio AS, Daiichi Sankyo, and Aclaris Therapeutics.

SOURCE: Rigel Pharmaceuticals