Pierre Fabre Pharma Announces Transfer Of IND Application For Tabelecleucel From Its Partner, Atara Biotherapeutics

Pierre Fabre Laboratories is now responsible for all global clinical trial activities for the tabelecleucel clinical program

Enrollment is ongoing for pivotal, Phase 3 ALLELE Study (NCT03394365) investigating tabelecleucel in patients with EBV+PTLD in Solid Organ Transplant and Allogeneic Hematopoietic Cell Transplant after failure of standard therapy

NCT04554914 also open for enrollment to patients with EBV-associated diseases

Atara Biotherapeutics resubmitted the tabelecleucel Biologics License Application (BLA) to the U.S. Food and Drug Administration on July 11

SECAUCUS, N.J., July 15, 2025 /PRNewswire/ -- Pierre Fabre Pharmaceuticals, Inc. today announced the transfer of the Investigational New Drug Application for tabelecleucel from its partner, Atara Biotherapeutics, Inc. (NASDAQ:ATRA). "This announcement marks an important milestone as Pierre Fabre Laboratories assumes global responsibility for clinical development of tabelecleucel following transfer of manufacturing responsibilities earlier in the year," said Adriana Herrera, Chief Executive Officer of Pierre Fabre Pharmaceuticals., the Pierre Fabre Laboratories pharmaceutical subsidiary in the United States. "Ongoing recruitment into the ALLELE study demonstrates our commitment to clinical research and development as we await regulatory action on the BLA resubmitted by our partner Atara."

Atara Biotherapeutics resubmitted the tabelecleucel BLA on July 11, having rapidly addressed the third-party manufacturing facility observations outlined in the January 2025 Complete Response Letter in collaboration with Pierre Fabre Pharmaceuticals (PFP). On March 31, PFP assumed global responsibility for tabelecleucel manufacturing, including commercial product supply for European markets where the innovative cell therapy is already approved, as well as for global clinical trial supply. On July 14, 2025, Atara Biotherapeutics transferred the tabelecleucel IND to Pierre Fabre Medicament, a subsidiary of Pierre Fabre Laboratories.