JTX-2011 is an agonist monoclonal antibody that specifically binds to the Inducible CO-Stimulator of T cells (ICOS) to generate an anti-tumor immune response. This is a Phase 1/2, open label, multicenter, dose escalation and expansion, first-in-human (FIH) clinical study to evaluate the safety and tolerability, PK, PD, and preliminary efficacy of the ICOS agonist monoclonal antibody JTX-2011 alone and in combination with nivolumab, ipilimumab, or pembrolizumab in adult subjects with advanced and/or refractory solid tumors. The study will include a dose escalation phase for single agent and the combination therapies, followed by an expansion phase in specified tumor types for single agent and the combination therapies.
JTX-2011-101 is a Phase 1/2, open label, dose escalation and expansion clinical study of JTX-2011 alone and in combination with nivolumab, ipilimumab, or pembrolizumab in adult subjects with advanced and/or refractory solid tumors, to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D), as well as to evaluate preliminary efficacy.