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Clinical Trial Summary

This is a single arm, open-label, prospective phase II clinical trial to evaluate the combination of neoadjuvant short-course radiotherapy and immunotherapy (PD-1 antibody) for patients with locally advanced rectal cancer (LARC). A total of 40 patients will be enrolled in this trial to receive 5*5Gy short-course radiotherapy, followed by 4 cycles of CAPOX chemotherapy and PD-1 antibody. Then they will receive the TME surgery and another 4 cycles of CAPOX chemotherapy. There are two cohorts according to the microsatellite instability status: (1) the micro-satellite stable (MSS) cohort(n=32), (2) the MSI-high cohort (n=8). The primary end point is the rate of pathological complete response (pCR). The long-term prognosis and adverse effects will also be evaluated and analyzed.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04663763
Study type Interventional
Source Zhejiang Cancer Hospital
Contact Yuping Zhu, MD
Phone 86-0571-88128011
Email drzyp@163.com
Status Not yet recruiting
Phase Phase 2
Start date December 1, 2020
Completion date December 1, 2025

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