Gracell Biotechnologies Inc. announced that it has been granted approval for a pivotal seamless Phase 1/2 clinical trial for GC007g, an allogeneic donor-derived anti-CD19 chimeric antigen receptor (CAR)-T cell therapy, for the treatment of B-cell acute lymphoblastic leukemia (B-ALL), by China'sNational Medical Products Administration (NMPA) on December 24, 2020. The seamless Phase 1/2 pivotal clinical trial of GC007g will enable Gracell to potentially substantially accelerate the clinical development of GC007g in China. GC007g is an allogeneic CAR-T therapy under development for the treatment of a subset of B-ALL patients who relapsed after receiving an allogeneic transplant. The allogeneic therapy is derived from human leukocyte antigen (HLA)-matched donor T cells. This allogeneic approach has the potential to resolve the T cell fitness issue associated with autologous CAR-T cell therapies. The donor-derived CAR-T cell therapy, GC007g, is designed for relaspsed/refractory B-ALL patients who may not be eligible for autologous CAR-T therapy due to poor cell fitness, infections, and other conditions.