Nectin Therapeutics Ltd., (Nectin), a biotechnology company developing novel targeted immunotherapies that address resistance to approved immune oncology treatments, announced today that it has progressed its Phase 1 clinical trial of NTX1088 to include a combination therapy arm with the immune-oncology drug KEYTRUDA® (pembrolizumab), MSD's anti-PD-1 therapy, and expanded the trial to four additional global sites to include Sheba Medical Center, Hadassah Medical Center, Ochsner Health, and City of Hope along with flagship site, MD Anderson Cancer Center.
NTX1088 is Nectin's First-in-Class lead candidate – a highly potent monoclonal antibody directed against PVR (CD155), a transmembrane protein expressed on cancer cells and associated with resistance to PD1 and PDL1 immune checkpoint inhibitors. PVR blockade by NTX1088 is the first and only therapeutic approach aimed at restoring the antitumor immune activity of DNAM1 (CD226). DNAM1 is a cell surface glycoprotein, central to the function of T and NK cells, that is degraded by PVR on tumor cells. Restoring the expression and activation of DNAM1 by blocking PVR results in increased antitumor activity from T and NK cells. PVR blockade by NTX1088 further stimulates an antitumor immune response by preventing the suppressing signaling of several immune checkpoint receptors, including TIGIT and CD96. NTX1088 is currently being clinically evaluated as a monotherapy and in combination with KEYTRUDA® (pembrolizumab).
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