Indaptus Therapeutics Doses First Patient in Decoy20 and Tislelizumab Combination Trial for Advanced Solid Tumors

03 June 2025 | Tuesday | News

Phase 1b/2 expansion arm to evaluate safety and early anti-tumor activity of Decoy20 with BeOne’s PD-1 inhibitor in patients unresponsive to prior checkpoint therapies.

Indaptus Therapeutics, Inc. (Nasdaq: INDP), a clinical-stage biotechnology company dedicated to developing novel treatments for cancer and viral infections, announces that the first patient has been dosed in the expansion arm of its Phase 1b/2 clinical trial evaluating Decoy20 in combination with BeOne’s (formerly known as Beigene) PD-1 checkpoint inhibitor, tislelizumab. This newly activated arm of the trial will assess safety, dose optimization, and early signs of anti-tumor activity in patients with advanced solid tumors, previously treated with a checkpoint inhibitor or with tumors typically unresponsive to a checkpoint inhibitor.

Jeffrey Meckler, Indaptus’ CEO commented, “This is an important milestone in our clinical development. We have long believed the Decoy platform has the potential to be a game-changing approach to treating solid tumors. Preclinical data consistently demonstrated that Decoy20 works synergistically with a checkpoint inhibitor. Now, for the first time, we are testing this combination in patients. Checkpoint inhibitors, like tislelizumab, have been one of the biggest breakthroughs in cancer therapy and have significantly improved outcomes in a variety of cancers. However, most patients still do not benefit. We believe the combination of Decoy20 plus a PD-1 inhibitor, such as tislelizumab, could enhance immune responses, potentially helping patients who have not responded or have tumors that classically do not respond to checkpoint inhibitor therapy.”

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