Priority Review for Orca Blood Cancer Cell Therapy
FDA has accepted for priority review an Orca Bio BLA for Orca-T, an investigational allogeneic T-cell immunotherapy for patients with acute myeloid leukemia, acute lymphoblastic leukemia, and myelodysplastic syndromes. The agency has set 4/6/2026 as the user fee review action target date. If approved, Orca-T would become the first allogeneic T-cell immunotherapy available for hematological malignancies, the company says.
The BLA is based on data from the Phase 3 Precision-T trial (NCT04013685), a randomized, open-label, multi-center study comparing Orca-T with conventional allogeneic hematopoietic stem cell transplant. The study met its primary endpoint, showing a statistically significant improvement in survival free of moderate-to-severe chronic graft-versus-host disease among patients treated with Orca-T, according to the company.
Orca Bio says Orca-T is composed of purified regulatory T cells, hematopoietic stem cells, and conventional T cells sourced from matched related or unrelated donors. The therapy is designed to restore healthy immune and blood systems while minimizing transplant-related complications. Orca-T has previously received regenerative medicine advanced therapy and orphan drug designation from FDA for preventing graft-versus-host disease or death in eligible transplant patients.