AlloVir Announces Positive Final Results from Randomized, Double-Blind, Placebo-Controlled Phase 2 Study of Posoleucel in Kidney Transplant Recipients with BK Viremia

Feb 15, 2023

AlloVir, Inc. (Nasdaq: ALVR), a late-clinical stage allogeneic T cell immunotherapy company, today announced positive final results from a Phase 2 study of posoleucel, an investigational, allogeneic, off-the-shelf, multi-virus-specific T cell (VST) therapy, being studied for the treatment of BK viremia (BKV) in adult kidney transplant recipients. The data support the safety and antiviral activity of posoleucel in this population, which has no effective BKV treatment options. In the randomized, double-blind, placebo-controlled study, posoleucel was shown to be generally well tolerated, with balanced safety across the two posoleucel dosing groups and placebo. Patients who received posoleucel achieved a clinically meaningful greater decline in BK viral load compared with those receiving placebo. The study results showed an even greater antiviral effect with posoleucel in patients with BK viral load ≥10,000 copies/mL at screening and in the biweekly posoleucel dosing group, identifying a dosing regimen and patient population to advance into a future trial.

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