SCRT + Chemo Targeted Immuno-neoadjuvant Therapy for High-risk pMMR/MSS RC
China204 participantsStarted 2026-04-30
Plain-language summary
To explore the efficacy and safety of an intensified treatment regimen consisting of short-course radiotherapy followed by mFOLFOX6 chemotherapy combined with precise targeted therapy (based on RAS/BRAF status: cetuximab for wild-type, bevacizumab for mutant) and a PD-1 monoclonal antibody, compared with short-course radiotherapy followed by mFOLFOX6 chemotherapy alone, in high-risk locally advanced pMMR/MSS rectal adenocarcinoma through a prospective, randomized controlled phase III clinical study, providing high-level evidence-based medical evidence to establish a superior neoadjuvant treatment strategy for this population.
Who can participate
Age range
18 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Before conducting procedures related to the research protocol but not part of routine care, written informed consent, voluntarily signed and dated by the subject, must be obtained in accordance with regulations and institutional guidelines.
. Age 18-75 years.
. Histologically or cytologically confirmed pMMR/MSS rectal adenocarcinoma; all other histological types are excluded.
. Distance from the lower margin of the rectal tumor to the anal verge ≤10 cm.
. Clinical staging with high-risk factors, including cT3Nx, EMVI(+), or cT4, ±MRF(+), ±EMVI(+).
. No evidence of distant metastasis before treatment.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
3 years DFS Rate
Timeframe: 3 years
Trial details
NCT IDNCT07549399
SponsorSixth Affiliated Hospital, Sun Yat-sen University
. No prior anti-cancer treatment (radiotherapy, chemotherapy, targeted therapy, or immunotherapy).
. ECOG performance status of 0-1.
Exclusion criteria
. Patients with a history of severe drug allergies (including allergies to platinum agents, 5-FU, LV, and 5-HT3 receptor antagonists);
. Patients who have participated in or are currently participating in other clinical trials within 4 weeks prior to enrollment;
. A history of having received anti-PD-1, PD-L1, PD-L2, CTLA-4, or any other specific T-cell costimulatory or checkpoint pathway-targeted therapy;
. Severe electrolyte abnormalities;
. Presence of gastrointestinal diseases, such as active ulcers in the stomach or duodenum, ulcerative colitis, or tumors with active bleeding that have not been resected; or other conditions that may lead to gastrointestinal bleeding or perforation; or gastrointestinal perforation that has not healed after surgical treatment;
. History of arterial thrombosis or deep vein thrombosis within 6 months; history of bleeding or evidence of bleeding tendency within 2 months; or patients receiving high-dose anticoagulation therapy;
. Pregnant or breastfeeding women, or women of childbearing potential with a positive pregnancy test before the first dose; or female participants and their partners who are unwilling to strictly practice contraception during the study period;
. Presence of other active malignancies (except for malignancies that have been treated with curative intent and have been disease-free for more than 3 years, or in situ cancers that can be cured with adequate treatment);