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Tuesday, June 4, 2019

Atara: Positive Phase 1 for Mesothelioma CAR T Immunotherapy

Memorial Sloan Kettering Cancer Center collaborators presented results demonstrating that a regionally delivered mesothelin-targeted, autologous CAR T was well tolerated and showed encouraging anti-tumor activity in combination with pembrolizumab, a PD-1 checkpoint inhibitor
 In a subset of 16 malignant pleural mesothelioma patients with minimum follow-up time of 3 months who also received pembrolizumab and lymphodepleting chemotherapy, 12-month overall survival was 80% and best overall response rate was 63%, including 3 investigator-assessed complete responses
Clinical findings presented at the American Society of Clinical Oncology (ASCO) Annual Meeting 2019
Atara Biotherapeutics, Inc. (Nasdaq: ATRA), a leading off-the-shelf, allogeneic T-cell immunotherapy company developing novel treatments for patients with cancer, autoimmune and viral diseases, today announced that the Company’s collaborators at Memorial Sloan Kettering Cancer Center (MSK), Prasad S. Adusumilli, M.D. and Michel Sadelain, M.D., Ph.D., presented an update on encouraging results from an ongoing MSK investigator-sponsored Phase 1 clinical study (NCT02414269) of a mesothelin-targeted CAR T immunotherapy for patients with mesothelin-associated malignant pleural solid tumors, primarily mesothelioma, who progressed following platinum-containing chemotherapy. Mesothelin-targeted, autologous CAR T cells delivered regionally were well-tolerated and showed encouraging anti-tumor activity in combination with pembrolizumab, a PD-1 checkpoint inhibitor. The findings were presented today at the American Society of Clinical Oncology (ASCO) Annual Meeting 2019 in Chicago.

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