RecruitingPhase 2Drug trialCapecitabine/Oxaliplatin Chemotherapy and Cemiplimab With or Without Fianlimab or REGN7075 in Locally Advanced Rectal CancerThe purpose of this study is to evaluate the safety and clinical activity of combining cemiplimab, cemiplimab/fianlimab, or cemiplimab/REGN7075 with capecitabine/oxaliplatin (CAPOX) for the neoadjuvant treatment of patients with microsatellite stable (MSS) locally advanced rectal cancer (T2 node-positive, T3 node-negative, T3 node-positive).