On November 11, 2021 A2 Biotherapeutics, Inc., "A2 Bio", is a biotechnology company focused on the development of a first-in-class Tmod T cell therapy platform to tackle the fundamental challenge in solid tumor treatment—the ability of cancer medicines to distinguish between tumor and normal cells (Press release, A2 Biotherapeutics, NOV 11, 2021, View Source [SID1234595471]).
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A2 Bio reported the first presentation of its Tmod platform; a powerful, precise targeting system controlled by tumor deletions which transforms CEA and MSLN CAR T cells into tumor-selective agents. Preclinical results demonstrate how Tmod primary T cells selectively kill tumor cells mixed with normal cells in vitro, and display robust activity in vivo. CEA Tmod cells selectively kill tumor cells within the same mouse implanted with established "normal" and tumor xenografts. MSLN Tmod constructs show similar selectivity, illustrating the breadth and modularity of the Tmod platform. Data are being featured on Nov. 13 at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper)’s (SITC) (Free SITC Whitepaper) 36th Annual Meeting at the Walter E. Washington Convention Center in Washington, D.C.
"These data demonstrate some of the impressive properties of the Tmod system, and its potential to address a key obstacle to more effective cancer treatments: tumor vs. normal tissue selectivity," said Alexander Kamb, Founder and Chief Scientific Officer of A2 Bio.
A2 Bio is also presenting a clinical trials poster on Nov 12, BASECAMP-1 (NCT04981119): An observational study to identify relapsed solid tumor patients with human leukocyte antigen (HLA) loss of heterozygosity (LOH). The study will use the Tempus xT-Onco Next Generation Sequencing diagnostic to identify patients with loss of HLA-A*02 heterozygosity. If eligible, these patients will be leukapheresed to bank T cells for subsequent autologous Tmod CAR T cell therapy at the time of relapse. BASECAMP-1 is currently recruiting patients with colorectal, pancreatic or non-small cell lung cancer at NYU Langone Medical Center, and will soon open at other cell therapy centers of excellence, including Mayo Clinic Rochester, UCLA Medical Center, UCSD Medical Center, and MD Anderson Cancer Center.
Diane Simeone, MD, Perlmutter Professor of Surgery at NYU who is a Principal Investigator stated, "BASECAMP-1 is an exciting study that is a potential game changer for relapsed patients after surgical resection with little viable treatment options. I am completely committed to helping to identify and enroll patients in this unique logic-gated CAR T immunotherapy."
A2 Bio’s posters presented at SITC (Free SITC Whitepaper) can be viewed on the company’s website at www.a2bio.com/science/abstracts-and-publications.