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Study identifier: NCT04643041 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Watch and Wait in PD-1 Monoclonal Antibody Treated dMMR/MSI-H Distal Rectal Cancer

Condition: Rectal Cancer  ·  Sponsor: Sixth Affiliated Hospital, Sun Yat-sen University

PhaseNA
Planned participants47
Who can joinAll sexes, 18 Years to 80 Years
Healthy volunteersNo

About this study

Immunotherapy has achieved significant therapeutic effect in DNA mismatch repair-deficient or microsatellite instability-high (dMMR/MSI-H) colorectal cancer (CRC) , more than fifty percent of dMMR/MSI-H CRC patients might get pathological complete response(pCR) after PD-1 monoclonal antibody treatment. For distant rectal cancer(RC), radical resection and neoadjuvant chemotherapy or chemoradiotherapy might cause lots of treatment cost,damage to defecation and sexual function, acute toxicity, chronic dysfunction, even loss of anus and psychological disorder. This study aims to evaluate the effect and safety of watch and wait in patients with dMMR/MSI-H distal RC accessed pCR after PD-1 monoclonal antibody therapy.

This description comes directly from the study's public registry record.

Talk to the study team

Jun Huang, MD  ·  +8613926451242  ·  huangj97@mail.sysu.edu.cn

Jianping Wang, MD  ·  +8613808874808  ·  wangjpgz@126.com

Always discuss trial participation with your own doctor first.

Locations (1)

Sun Yatsen UniversityGuangzhou, Guangdong, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT04643041