Indaptus Therapeutics Initiates Phase 1 Combination Study of Decoy20 with PD-1 Checkpoint Inhibitor Tislelizumab

Core Insights - Indaptus Therapeutics has advanced to a new expansion arm of its Phase 1b/2 clinical trial for Decoy20, evaluating its combination with BeiGene's PD-1 inhibitor, tislelizumab, focusing on safety, dose optimization, and early anti-tumor activity [1][2] Company Overview - Indaptus Therapeutics is a clinical-stage biotechnology company focused on developing innovative treatments for cancer and viral infections, leveraging a unique Decoy platform that activates the immune system [1][5] - The Decoy platform utilizes non-pathogenic Gram-negative bacteria to produce multiple immune system-activating signals, aiming to enhance both innate and adaptive immune responses [6] Clinical Trial Details - The combination trial will initially involve participants receiving one week of Decoy20 monotherapy before transitioning to the combination treatment with Decoy20 and tislelizumab [7] - The trial will begin with sequential enrollment to monitor safety, followed by unrestricted enrollment after a review by the Safety Review Committee [7] Mechanism of Action - PD-1 inhibitors like tislelizumab block the PD-1 receptor on T cells, allowing the immune system to better combat cancer cells [4] - The combination of checkpoint inhibitors with immune activators like Decoy20 is theorized to provide a more powerful and sustained anti-tumor response [4][2] Preclinical Research Findings - Preclinical studies have shown that Decoy20 can enhance the effectiveness of checkpoint inhibitors, with evidence of tumor eradication in various cancer models [6] - The Decoy platform has demonstrated single-agent activity against multiple cancers and has shown promise in combination with other therapies [6]