NPX887, a monoclonal antibody targeting HHLA2, is designed to enhance immune responses in the tumor microenvironment

CAMBRIDGE, MA, USA I December 07, 2023 I NextPoint Therapeutics, a clinical-stage biotechnology company developing precision immuno-oncology therapeutics targeting the novel HHLA2 pathway, today announced the acceptance of its investigational new drug (IND) application by the U.S. Food & Drug Administration (FDA) for NPX887. The company plans to initiate a first-in-human Phase I clinical trial in early 2024 evaluating NPX887 in patients with solid tumors known to express HHLA2, a tumor antigen strongly upregulated in many human cancers.

“NPX887 represents our second clinical program targeting the HHLA2 checkpoint axis. NextPoint’s approach is to advance therapeutics targeting this axis from different angles to prevent tumors from cloaking themselves from the immune system,” said Leena Gandhi, MD, PhD, Chief Medical Officer of NextPoint Therapeutics. “This important milestone allows us to advance our clinical evaluation of NPX887 and brings us one step closer to our goal of expanding treatment options for patients with cancer.”

About NPX887

NPX887 is a fully human monoclonal antibody targeting HHLA2 (B7-H7), a novel immune checkpoint and tumor target antigen highly expressed in many cancers independently of PD-L1. NPX887 is designed to prevent immune escape in solid tumors by blocking KIR3DL3-mediated immunosuppression upon binding to HHLA2. Treatment with NPX887 is believed to promote T and NK cell antitumor activity within the tumor microenvironment.

About NextPoint Therapeutics

NextPoint is advancing the field of immuno-oncology through its leading scientific work on the novel HHLA2 pathway. Our innovative approach integrates foundational science with a defined clinical biomarker strategy to deliver a new class of monotherapies for patients who do not benefit from PD-1/L1 inhibitors. Our team of proven drug developers is working closely with our renowned scientific founders to launch a new world of precision immuno-oncology. To learn more, visit

SOURCE: NextPoint Therapeutics