Neoadjuvant Cadonilimab Plus Chemotherapy Following Short-Course Radiotherapy in Locally Advanced Rectal Cancer

Summary

The goal of this clinical trial is to test the efficacy and safety in patients with locally advanced middle and lower rectal cancer. The main questions it aims to answer are:• Whether Cadonilimab combined with chemotherapy following short-course radiation can improve pathological complete response(pCR) rate? •Are the toxicities of the combination therapy manageable? Participants will be given radiation of 5 Gy for 5 days and then neoadjuvant Cadonilimab combined with modified fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) for 6 cycles. Without progressed disease, total mesorectal excision (TME) or transanal local excision will be performed. If clinical complete response was received, watch and wait strategy is one of choices. Adjuvant Cadonilimab plus mFOLFOX6 for another 6 cycles could be suggested for non-pCR participants,while surveillance is also suitable for pCR ones.

Timeline

Start

2023-04-11

Primary completion

2024-10-31

Completion

2025-01-31

Publications

• Background 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.
• Background Hodi FS, Chiarion-Sileni V, Gonzalez R, Grob JJ, Rutkowski P, Cowey CL, Lao CD, Schadendorf D, Wagstaff J, Dummer R, Ferrucci PF, Smylie M, Hill A, Hogg D, Marquez-Rodas I, Jiang J, Rizzo J, Larkin J, Wolchok JD. Nivolumab plus ipilimumab or nivolumab alone versus ipilimumab alone in advanced melanoma (CheckMate 067): 4-year outcomes of a multicentre, randomised, phase 3 trial. Lancet Oncol. 2018 Nov;19(11):1480-1492. doi: 10.1016/S1470-2045(18)30700-9. Epub 2018 Oct 22.
• Background Sharma P, Siefker-Radtke A, de Braud F, Basso U, Calvo E, Bono P, Morse MA, Ascierto PA, Lopez-Martin J, Brossart P, Rohrberg K, Mellado B, Fischer BS, Meadows-Shropshire S, Abdel Saci, Callahan MK, Rosenberg J. Nivolumab Alone and With Ipilimumab in Previously Treated Metastatic Urothelial Carcinoma: CheckMate 032 Nivolumab 1 mg/kg Plus Ipilimumab 3 mg/kg Expansion Cohort Results. J Clin Oncol. 2019 Jul 1;37(19):1608-1616. doi: 10.1200/JCO.19.00538. Epub 2019 May 17.
• Background Shamseddine A, Zeidan YH, El Husseini Z, Kreidieh M, Al Darazi M, Turfa R, Kattan J, Khalifeh I, Mukherji D, Temraz S, Alqasem K, Amarin R, Al Awabdeh T, Deeba S, Jamali F, Mohamad I, Elkhaldi M, Daoud F, Al Masri M, Dabous A, Hushki A, Jaber O, Charafeddine M, Geara F. Efficacy and safety-in analysis of short-course radiation followed by mFOLFOX-6 plus avelumab for locally advanced rectal adenocarcinoma. Radiat Oncol. 2020 Oct 7;15(1):233. doi: 10.1186/s13014-020-01673-6.

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Indications