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Adaptimmune Highlights Presentation Of Phase 1 Trial Data With ADP-A2AFP


Benzinga | Aug 28, 2020 10:35AM EDT

Adaptimmune Highlights Presentation Of Phase 1 Trial Data With ADP-A2AFP

PHILADELPHIA and OXFORDSHIRE, United Kingdom, Aug. 28, 2020 (GLOBE NEWSWIRE) -- Adaptimmune Therapeutics plc ("Adaptimmune")(NASDAQ:ADAP), a leader in cell therapy to treat cancer, presented data from its Phase 1 trial with SPEAR T-cells targeting AFP at the virtual International Liver Congress (ILC). One patient out of four dosed with 5 billion or more cells had a complete response, which was reported previously. The data also demonstrate an acceptable safety profile in patients with hepatocellular carcinoma (HCC).

"A complete response in a patient with advanced liver cancer, and the anti-tumor activity we have reported in other patients with an acceptable safety profile, to date, further support the continued investigation of ADP-A2AFP," said Elliot Norry, Adaptimmune's Chief Medical Officer. "We remain encouraged by the potential of this therapy and we are fully committed to developing ADPA2AFP for people with HCC. We have reported results for four patients at doses of 5 billion cells or more and we are looking forward to sharing more data as we continue to treat patients in the expansion phase of the trial. Further, we continue to review our translational findings and are evaluating ways to improve the therapy, if necessary."

Dr. Bruno Sangro of Clinica Universidad de Navarra presented data from Cohort 3 and the expansion phase of the ADP-A2AFP Phase 1 trial during an oral presentation at ILC. Tim Meyer of University College London presented additional data from Cohorts 1 and 2 during a poster presentation. A video is available on Adaptimmune's website ( https://youtu.be/qAHamb3Yi8Y) of Elliot Norry, and Mark Dudley, SVP of Early Stage Development, discussing these data. The oral presentation and poster presentation are available online through the congress web site.

Topline data from ILC 1

* One patient had a complete response and also demonstrated a sustained reduction in serum AFP. This patient experienced disease progression, having developed new lesions at Week 32

* Overall, nine patients have been treated as of the data cutoff, of those - Four patients have been treated with ~5 billion or more transduced cells (three in Cohort 3 and one in the expansion phase): 1 patient with the complete response, 1 with stable disease (SD), and 2 had progressive disease (PD) - Five patients were previously treated in the first two dose cohorts with doses of 100 million and 1 billion transduced cells, respectively, and all patients had best responses of SD

* ADP-A2AFP SPEAR T-cells were associated with an acceptable safety profile with no evidence of significant T-cell related hepatotoxicity and no protocol-defined dose limiting toxicities

* Evidence of dose-dependent persistence of ADP-A2AFP SPEAR T-cells post-infusion

* Further translational evaluation is ongoing to understand indicators of response







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