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Study identifier: NCT06613165 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Exploring the Treatment Duration of PD-1 Neoadjuvant Therapy in Stage II-III dMMR Rectal Cancer

Condition: Immune-related Adverse Event · Neoadjuvant Therapy · dMMR Colorectal Cancer  ·  Sponsor: Xijing Hospital

PhaseN/A
Planned participants100
Who can joinAll sexes, 18 Years to 80 Years
Healthy volunteersNo

About this study

This study aims to explore the optimal number of cycles of PD-1 monotherapy required at minimum, under the premise of ensuring pathological complete response (pCR) among patients with dMMR/MSI-H rectal cancer. Participants will receive preoperative monotherapy with PD-1 antibodies, with regular reassessments every 2 cycles. Surgical intervention will be performed if clinical complete response (cCR) is achieved. Researchers will compare the pathological complete response rates, adverse reactions, and three-year event-free survival rates across different treatment cycles.

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

Talk to the study team

Jipeng Li, Doctor  ·  Jipeng  ·  jipeng1974@aliyun.com

Yihuan Qiao, Doctor  ·  18682986362  ·  yhqiao1995@126.com

Always discuss trial participation with your own doctor first.

Locations (1)

Xijing hospitalXi'an, Shaanxi, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT06613165