Recruiting nowPhase 3Randomised
What this trial is trying to do
The researchers are testing whether adding two immune-checkpoint inhibitors—drugs intended to help immune cells recognise and attack cancer—to CAPOX chemotherapy after short-course radiotherapy improves tumour clearance in treatment-naive, pMMR/MSS locally advanced rectal cancer. The comparison is CAPOX after radiotherapy with versus without the immunotherapy drugs.
The trial asks whether the combination increases the complete-response rate, defined here as either no cancer found at surgery or a clinical complete response lasting more than a year. A complete response could allow some patients to avoid immediate rectal surgery through a monitored watch-and-wait approach; the study will also measure relapse-free and overall survival, bowel-function-related sphincter preservation, and serious short-term side effects.
Worth knowing: This is a phase 3 trial, but its main measure is complete response rather than survival, and a watch-and-wait approach applies only to patients who meet the study’s clinical complete-response criteria.
Written from the trial's own registry entry to explain what the researchers are testing and why. Nothing here is a result — this trial has not reported one — and it is not a view on whether the treatment works or on whether it would suit you.
| Registry number | NCT07686640 |
|---|---|
| Recruitment | Recruiting now |
| Phase | Phase 3 |
| Design | randomised, open label |
| Taking part | 180 people (planned) |
| Who can join | aged 18 Years to 75 Years |
| Run by | Shandong Cancer Hospital and Institute |
| Started | |
| Main results expected | |
| Record last updated |
What is being tested
- Radiotherapy Short-Course Radiotherapy
- Drug Consolidation treatment (With ICIs)
- Drug Consolidation treatment (Without ICIs)
What it is measuring
Complete Response (CR) Rate
This is the trial's main question — the one it is designed and sized to answer. Anything else it reports is a secondary finding, and secondary findings are far more likely to be chance.
Phase 3. Compares the treatment against current standard care in a large group. This is the design that changes practice.
How the researchers describe it
This multicenter, randomized, controlled, phase III trial evaluates whether adding iparomlimab and tuvonralimab injection to CAPOX consolidation chemotherapy after short-course radiotherapy improves tumor response in patients with treatment-naive, proficient mismatch repair/microsatellite-stable (pMMR/MSS) locally advanced rectal adenocarcinoma. Eligible patients will be randomly assigned in a 1:1 ratio to receive short-course radiotherapy followed by CAPOX plus iparomlimab and tuvonralimab, or short-course radiotherapy followed by CAPOX alone.
After total neoadjuvant therapy, patients with a clinical complete response may undergo a Watch-and-Wait strategy, whereas other patients will undergo total mesorectal excision according to standard clinical practice. The primary endpoint is complete response rate, defined as pathologic complete response after surgery or clinical complete response sustained for more than 1 year. Secondary endpoints include 3-year relapse-free survival, 3-year overall survival, sphincter preservation rate, and grade 3-4 acute adverse events. Exploratory analyses will assess tissue and blood biomarkers associated with treatment response.
Written by the trial’s sponsor, quoted from its ClinicalTrials.gov record.
What this trial is looking for
- Any genotype
- Locally advanced
- Rectal
Read automatically from the criteria below, to make the list searchable. It is a summary of what the text mentions, not a decision about whether you qualify — and where the two disagree, the criteria are right and this is wrong.
Who the trial is looking for
Inclusion Criteria
- Patients aged 18-75 years with histologically confirmed pMMR/MSS rectal adenocarcinoma are eligible if they have MRI-defined clinical stage II or III disease according to AJCC 8th edition, tumor located within 12 cm from the anal verge, and at least one high-risk feature, including cT4b, cN2, EMVI positivity, MRF positivity, lateral lymph node positivity, tumor deposits, or tumor located ≤5 cm from the anal verge. Patients must have no distant metastasis, ECOG performance status 0-1, life expectancy greater than 6 months, and adequate hematologic, hepatic, and renal function
Exclusion Criteria
- active or prior autoimmune disease requiring systemic treatment, use of immunosuppressive therapy or systemic corticosteroids at immunosuppressive doses, severe hypersensitivity to monoclonal antibodies, uncontrolled cardiac disease, significant coagulopathy or bleeding tendency, active infection, interstitial lung disease or severe pulmonary dysfunction, HIV infection or active hepatitis, prior or concurrent malignancy except specified cured cancers, recent investigational drug use, planned use of other systemic antitumor therapy during the study, pregnancy or breastfeeding, and any other condition judged by the investigator to make participation unsuitable.
This is an extract. Whether you qualify is decided by the trial team against the full criteria, not by reading this page. Read the full eligibility criteria
Where it is running
Running at 1 site. Listed in: China.
Individual hospitals, and whether each is currently open, are listed on the registry record. Sites open and close throughout a trial.
Worth asking your oncology team
Being listed here is not a recommendation, and no one page can tell you whether a trial is right for you. These are the questions it raises.
- Is this trial open at a hospital I could realistically travel to?
- Given my stage, my previous treatment and my tumour's molecular profile, would I be eligible?
- What would I be giving up by joining — is the comparison arm the treatment I would otherwise be having?
- What is already known about the safety of what is being tested?
The source
Registry record NCT07686640, registered by Shandong Cancer Hospital and Institute on ClinicalTrials.gov, a public database run by the US National Library of Medicine. The details on this page come from that record and are only ever as current as the sponsor has kept it.
This is a listing of a registered clinical trial, reproduced for information. It is not a recommendation, this site has no connection to the trial or its sponsor, and being listed here says nothing about whether the treatment works. Talk to your own oncology team before pursuing any trial.
This article summarises published research for general information. It is not medical advice, and it is not a substitute for a conversation with your own oncology team, who know your case. Do not start, stop, or change any treatment or supplement on the basis of what you read here.