Core Insights - Indaptus Therapeutics has initiated a Phase 1b/2 clinical trial to evaluate the safety, dosing, and preliminary anti-tumor activity of Decoy20 in combination with tislelizumab for patients with advanced solid tumors [1][2] - The trial aims to assess the effectiveness of this combination therapy in patients who have previously been treated with checkpoint inhibitors or have tumors that are typically unresponsive to such therapies [1][7] Company Overview - Indaptus Therapeutics is focused on developing innovative therapies that leverage the immune system to combat cancer and viral infections, utilizing a patented Decoy platform that activates both innate and adaptive immune responses [6][5] - The Decoy platform is based on non-pathogenic Gram-negative bacteria that produce multiple immune system-activating signals, designed to be administered safely via intravenous injection [6] Clinical Trial Details - The trial has already dosed over 25 patients with Decoy20 at a dosage of 30 million cells, with treatment being well tolerated and side effects mostly mild or moderate [7] - The combination therapy is expected to enhance immune responses in patients who have not responded to prior treatments, potentially leading to improved outcomes [2][4] Mechanism of Action - PD-1 inhibitors like tislelizumab work by blocking the PD-1 receptor on T cells, which helps restore the immune system's ability to fight cancer [4] - The combination of Decoy20 with PD-1 inhibitors is hypothesized to provide a more powerful and sustained anti-tumor response by activating both innate and adaptive immune cells [4][8] Preclinical Evidence - Preclinical studies have shown that Decoy product candidates can induce significant anti-tumor activity and have produced promising results against various cancers in combination with checkpoint inhibitors [6][8] - The Decoy platform has also demonstrated efficacy against chronic viral infections such as hepatitis B and HIV in preclinical models [8]