Rigel, Bristol-Myers Collaborate For TGF Beta Receptor Kinase Inhibitors

(RTTNews) - Rigel Pharmaceuticals, Inc. (RIGL) and Bristol-Myers Squibb Co. (BMY) have signed a collaboration agreement for the discovery, development and commercialization of cancer immunotherapies based on Rigel's extensive portfolio of small molecule TGF beta receptor kinase inhibitors. TGF beta can promote tumor growth, broadly suppress the immune system and increase the ability of tumors to spread in the body. The collaboration will focus on developing a new class of therapeutics aimed at increasing the immune system's activity against various cancers either as monotherapy or in combination with immune checkpoint inhibitors, including Bristol-Myers Squibb's Opdivo and Yervoy.

As part of the agreement, Bristol-Myers Squibb will get exclusive, worldwide rights to develop and commercialize small molecule therapeutics derived from Rigel's TGF beta library, including, but not limited to, those approved to treat cancer. Bristol-Myers Squibb will pay $30 million upfront and Rigel will be eligible to receive development and regulatory milestones that could total more than $309 million for a successful compound approved in multiple indications. Also, Rigel will be eligible to receive tiered royalties on the net sales of any products from the collaboration.

"This collaboration places our TGF beta receptor kinase inhibitor program into the hands of Bristol-Myers Squibb, a premier immuno-oncology company. Together, we believe TGF beta inhibition may offer novel therapeutic opportunities in oncology treatments," said Raul Rodriguez, president and chief executive officer of Rigel.