The FDA has approved Geron's RYTELO™ (imetelstat) for adult patients with lower-risk myelodysplastic syndromes (LR-MDS) who have transfusion-dependent anemia and are unresponsive to or ineligible for erythropoiesis-stimulating agents (ESA).
The approval was based on the IMerge Phase 3 trial, where RYTELO™ significantly increased red blood cell transfusion independence compared to placebo, with nearly 40% achieving independence for at least eight weeks.
RYTELO™ is the first telomerase inhibitor approved by the FDA, representing a novel treatment class that targets telomerase, which is overexpressed in malignant bone marrow cells in LR-MDS, aiming to reduce cancer cell proliferation.
Administered intravenously every four weeks, RYTELO™ offers a new option for managing LR-MDS, with common side effects including manageable thrombocytopenia and neutropenia, and is supported by the REACH4RYTELO™ patient program.