Short-course RT Followed by NALIRIFOX Plus Pucotenlimab as Neoadjuvant Therapy for High-risk Locally Advanced Rectal Cancer With MSS/pMMR

Summary

The goal of this clinical trial is conducted to evaluate the neoadjuvant regimen of short-course radiotherapy (SCRT) followed by NALIRIFOX chemotherapy plus Pucotenlimab immunotherapy for high-risk locally advanced rectal cancer. The main questions it aims to answer are: 1. Does this regimen increase the complete response rate ? 2. What medical problems (adverse events) do participants have when receiving this treatment? Researchers will evaluate this regimen compared to historical standard neoadjuvant chemoradiotherapy to see if it achieves a higher complete response rate and improves sphincter preservation. Participants will: 1. Receive short-course radiotherapy (25Gy/5f) over 5 consecutive days. 2. Then receive NALIRIFOX chemotherapy every 2 weeks for 9 cycles and Pucotenlimab immunotherapy every 3 weeks for 6 cycles (total treatment duration approximately 6 months). 3. Regular checkups and tests during treatment. 4. Keep a diary of their symptoms and the number of times they use a rescue inhaler.

Timeline

Start

2026-05-31

Primary completion

2027-12-31

Completion

2029-12-31

Publications

• Results Conroy T, Bosset JF, Etienne PL, Rio E, Francois E, Mesgouez-Nebout N, Vendrely V, Artignan X, Bouche O, Gargot D, Boige V, Bonichon-Lamichhane N, Louvet C, Morand C, de la Fouchardiere C, Lamfichekh N, Juzyna B, Jouffroy-Zeller C, Rullier E, Marchal F, Gourgou S, Castan F, Borg C; Unicancer Gastrointestinal Group and Partenariat de Recherche en Oncologie Digestive (PRODIGE) Group. Neoadjuvant chemotherapy with FOLFIRINOX and preoperative chemoradiotherapy for patients with locally advanced rectal cancer (UNICANCER-PRODIGE 23): a multicentre, randomised, open-label, phase 3 trial. Lancet Oncol. 2021 May;22(5):702-715. doi: 10.1016/S1470-2045(21)00079-6. Epub 2021 Apr 13.
• Results Zhu J, Liu A, Sun X, Liu L, Zhu Y, Zhang T, Jia J, Tan S, Wu J, Wang X, Zhou J, Yang J, Zhang C, Zhang H, Zhao Y, Cai G, Zhang W, Xia F, Wan J, Zhang H, Shen L, Cai S, Zhang Z. Multicenter, Randomized, Phase III Trial of Neoadjuvant Chemoradiation With Capecitabine and Irinotecan Guided by UGT1A1 Status in Patients With Locally Advanced Rectal Cancer. J Clin Oncol. 2020 Dec 20;38(36):4231-4239. doi: 10.1200/JCO.20.01932. Epub 2020 Oct 29.
• Results Jin J, Tang Y, Hu C, Jiang LM, Jiang J, Li N, Liu WY, Chen SL, Li S, Lu NN, Cai Y, Li YH, Zhu Y, Cheng GH, Zhang HY, Wang X, Zhu SY, Wang J, Li GF, Yang JL, Zhang K, Chi Y, Yang L, Zhou HT, Zhou AP, Zou SM, Fang H, Wang SL, Zhang HZ, Wang XS, Wei LC, Wang WL, Liu SX, Gao YH, Li YX. Multicenter, Randomized, Phase III Trial of Short-Term Radiotherapy Plus Chemotherapy Versus Long-Term Chemoradiotherapy in Locally Advanced Rectal Cancer (STELLAR). J Clin Oncol. 2022 May 20;40(15):1681-1692. doi: 10.1200/JCO.21.01667. Epub 2022 Mar 9.
• Results Bahadoer RR, Dijkstra EA, van Etten B, Marijnen CAM, Putter H, Kranenbarg EM, Roodvoets AGH, Nagtegaal ID, Beets-Tan RGH, Blomqvist LK, Fokstuen T, Ten Tije AJ, Capdevila J, Hendriks MP, Edhemovic I, Cervantes A, Nilsson PJ, Glimelius B, van de Velde CJH, Hospers GAP; RAPIDO collaborative investigators. Short-course radiotherapy followed by chemotherapy before total mesorectal excision (TME) versus preoperative chemoradiotherapy, TME, and optional adjuvant chemotherapy in locally advanced rectal cancer (RAPIDO): a randomised, open-label, phase 3 trial. Lancet Oncol. 2021 Jan;22(1):29-42. doi: 10.1016/S1470-2045(20)30555-6. Epub 2020 Dec 7.
• Results Cisel B, Pietrzak L, Michalski W, Wyrwicz L, Rutkowski A, Kosakowska E, Cencelewicz A, Spalek M, Polkowski W, Jankiewicz M, Stylinski R, Bebenek M, Kapturkiewicz B, Maciejczyk A, Sadowski J, Zygulska J, Zegarski W, Jankowski M, Las-Jankowska M, Toczko Z, Zelazowska-Omiotek U, Kepka L, Socha J, Wasilewska-Tesluk E, Markiewicz W, Kladny J, Majewski A, Kapuscinski W, Suwinski R, Bujko K; Polish Colorectal Study Group. Long-course preoperative chemoradiation versus 5 x 5 Gy and consolidation chemotherapy for clinical T4 and fixed clinical T3 rectal cancer: long-term results of the randomized Polish II study. Ann Oncol. 2019 Aug 1;30(8):1298-1303. doi: 10.1093/annonc/mdz186.
• Results Yu Y, Li Y, Xu C, Zhang Z, Zhang X. Comparison of long course and short course preoperative radiotherapy in the treatment of locally advanced rectal cancer: a systematic review and meta-analysis. Rev Esp Enferm Dig. 2019 Jan;111(1):17-27. doi: 10.17235/reed.2018.5674/2018.
• Results Diefenhardt M, Martin D, Fleischmann M, Hofheinz RD, Ghadimi M, Rodel C, Fokas E. Overall Survival After Treatment Failure Among Patients With Rectal Cancer. JAMA Netw Open. 2023 Oct 2;6(10):e2340256. doi: 10.1001/jamanetworkopen.2023.40256.

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