Manish Sharma, M.D., Co-Director of Clinical Research, at the START Center for Cancer Research-Midwest (START Midwest) in Grand Rapids, Michigan, added, "Having COM503 as an additional novel investigational treatment option with a unique mechanism of action to offer our cancer patients is exciting. We, at START Midwest, were delighted to be the first to dose a patient with COM503 and look forward to swiftly enrolling additional patients in this first dose escalation part of the trial with a focus on evaluating the safety and pharmacokinetics of COM503 monotherapy." About the COM503 Phase 1 trial: The primary objectives of this trial are to assess the safety and tolerability of COM503 as a monotherapy and in combination with zimberelimab in patients with advanced solid tumors and to identify the maximum tolerated dose /maximum administered dose and/or the recommended dose of COM503 as monotherapy and in combination with zimberelimab.