Rigel has a long-standing collaboration with Daiichi-Sankyo for developing murine double minute 2 (MDM2) protein inhibitors in cancer, which were discovered in Rigel’s laboratories.
Preliminary safety and efficacy data from an early Phase 1 study of milademetan (formerly DS-3032), an oral selective MDM2 inhibitor, in hematological malignancies suggests that it may be a promising potential treatment for oncology indications.
Rigel received an upfront payment and is eligible for milestone payments, as well as tiered royalty payments on any future net sales of any products emerging from the collaboration.