Mustang Bio, Inc. (“Mustang”) (NASDAQ: MBIO), a clinical-stage biopharmaceutical company focused on translating today’s medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors and rare genetic diseases, today announced that updated interim data from the ongoing Phase 1/2 clinical trial of MB-106, a CD20-targeted, autologous CAR T cell therapy, show a favorable safety profile, high overall response (“ORR”) and complete response (“CR”) rates, and CAR T persistence in patients with follicular lymphoma (“FL”). MB-106 is being developed in a collaboration between Mustang and Fred Hutchinson Cancer Center (“Fred Hutch”) to treat patients with relapsed or refractory B-cell non-Hodgkin lymphomas (“B-NHLs”) and chronic lymphocytic leukemia (“CLL”).
The updated results presented during an on-site oral presentation at the European Hematology Association 2022 Hybrid Congress (“EHA2022”) by Mazyar Shadman, M.D., M.P.H., Associate Professor and physician at Fred Hutch and University of Washington, included interim safety and efficacy data from the cell manufacturing process that was modified to combine the culture of CD4+ and CD8+ cells. CAR-T cells were administered at one of 5 dose levels: 1x105, 3.3x105, 1x106, 3.3x106 and 1x107 CAR T cells/kg. Treatment for all patients was infused in the outpatient setting except for the first patient of each dose cohort, each of which was kept for overnight observation.
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