cirmtuzumab cirmtuzumab cirmtuzumab (also uc-961) is an anti-ror1 humanised monoclonal antibody. cirmtuzumabmonoclonal antibodytype?sourcehumanizedtargetror1clinical dataother namesuc-961legal statuslegal status investigational identifierscas number1643432-38-5 yuniifeh7rq7b3j it is an experimental drug in early-stage clinical trials for various cancers including chronic lymphocytic leukemia (cll).