FDA OKs 1st Cellular Therapy for Severe Aplastic Anemia
FDA has approved Gamida Cell’s Omisirge, the first cellular therapy authorized to treat patients with severe aplastic anemia (SAA), a rare and life-threatening bone marrow disorder. The action expands the use of Omisirge to adults and children as young as six who lack a compatible stem cell donor and are eligible for reduced-intensity conditioning before transplant.
Omisirge (omidubicel-onlv) was previously approved for certain patients with blood cancers requiring hematopoietic stem cell transplant (HSCT). The new approval marks the first time a cellular therapy has been cleared specifically for SAA, a condition in which the bone marrow fails to produce adequate blood cells, according to an agency release.
Patients with SAA typically receive immunosuppressive therapy or a stem cell transplant from a matched donor, but many lack a suitable donor match. Umbilical cord blood transplants are sometimes used but can be limited by slow blood cell recovery and heightened infection risks.
Omisirge is manufactured from donated cord blood stem cells that are chemically enhanced with nicotinamide, a form of vitamin B3, to speed recovery of the blood and immune system. FDA officials say the therapy appears to overcome some limitations of traditional cord blood transplants by improving engraftment and reducing infection risks.