TETRAVI Multivirus CTL for Treatment of EBV, CMV, Adenovirus, and BK Infections Post Allogeneic SCT.

"An alternative approach that bypasses the need to grow VSTs for individual patients is to bank closely HLA-matched allogeneic VSTs that could be available as an off the shelf product.~The HLA-matched VST product is to produce immune activity to CMV, Adv, BK virus and EBV in all recipients.~Most recently our group extended this off the shelf approach to five viruses using the T cell product manufactured in 10 days. The VSTs were administered to 38 patients with 45 infections in a phase II clinical trial. A single infusion produced a cumulative complete or partial response rate of 92% overall and the following rates by virus: 100% for BKV (n = 16), 94% for CMV (n = 17), 71% for AdV (n = 7), 100% for EBV (n = 2), and 67% for HHV-6 (human herpesvirus) (n = 3)."