Incyte Corp.’s Zynyz (retifanlimab-dlwr) has received another U.S. FDA approval and put some distance between it and a 2021 complete response letter. The FDA gave the humanized monoclonal antibody targeting PD-1 the nod for first-line treatment of adults with inoperable locally recurrent or metastatic squamous cell carcinoma of the anal canal. That makes it the only approved first-line treatment for this cancer.