R289 was generally well tolerated and demonstrated signs of preliminary clinical activity in elderly heavily pretreated LR-MDS patients RBC-TI/HI-E responses occurred in 40% of evaluable TD patients receiving R289 doses ≥500 mg QD SOUTH SAN FRANCISCO, Calif. , Dec. 9, 2024 /PRNewswire/ -- Rigel Pharmaceuticals, Inc. (Nasdaq: RIGL), a commercial stage biotechnology company focused on hematologic disorders and cancer, today... Read More