FDA Grants Regenerative Medicine Advanced Therapy (RMAT) Designation to AlloVir’s Posoleucel for Prevention of Multiple Life-Threatening Infections from Six Viruses in Allogeneic Hematopoietic Cell Transplant Patients

AlloVir (Nasdaq: ALVR), a late clinical-stage allogeneic T cell immunotherapy company, today announced that the U.S. Food and Drug Administration (FDA) has granted Regenerative Medicine Advanced Therapy (RMAT) designation to its lead investigational multi-virus-specific T cell therapy, posoleucel, for the prevention of clinically significant infections and disease from six devastating viruses that commonly impact high-risk adult and pediatric patients following allogeneic hematopoietic cell transplant (allo-HCT) – adenovirus (AdV), BK virus (BKV), cytomegalovirus (CMV), Epstein-Barr virus (EBV), human herpes virus-6 (HHV-6) and JC virus (JCV). This is the third RMAT designation that FDA has granted to posoleucel, in recognition of the therapy’s transformative potential to address significant unmet medical needs facing immunocompromised allo-HCT patients.

The FDA previously granted RMAT designation to posoleucel for the treatment of hemorrhagic cystitis (HC) caused by BKV in adults and children following allo-HCT and for the treatment of adenovirus infection following allo-HCT. RMAT designation enables early interactions with the FDA to discuss clinical trial design and other actions to expedite development and review. Outside of the United States, the European Medicines Agency has granted posoleucel PRIority Medicines (PRIME) designation for the treatment of serious infections with AdV, BKV, CMV, EBV and HHV-6.

“The receipt of three RMAT designations for a single therapy is unprecedented. Posoleucel’s three RMAT designations reflect the strength of AlloVir’s multi-virus platform and its potential both to deliver an important treatment option for immunocompromised patients who currently have none, and to transform the management of allo-HCT patients with a multi-virus prevention approach,” said Ercem Atillasoy, M.D., Chief Regulatory and Safety Officer, AlloVir.

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