Seed Therapeutics Inc. has gained IND clearance from the U.S. FDA for ST-01156, a brain-penetrant RBM39 degrader. The clearance enables initiation of a first-in-human phase I trial in patients with advanced solid tumors and hematological malignancies, prioritizing biomarker-selected RBM39-dependent cancers. Dosing is expected to begin in the first quarter of next year.