RecruitingPhase 2Combination productShort-Course Radiotherapy Followed by Neoadjuvant Chemotherapy, HLX07and Serplulimab in LARCThe study is a multicenter, open-label, phase II clinical study, and the purpose of the study is to explore the complete response rate (CR, Defined as pathological complete response (pCR) + Clinical complete response (cCR)) of patients with RAS/BRAF wild type locally advanced rectal cancer(LARC) treated with short-term radiotherapy, sequential HLX07, Serplulimab and CAPOX. A total of 29 patients were included in this study.