New hope: immune drug before surgery for tough colorectal cancer
NCT ID NCT07352280
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether giving the drug tislelizumab before surgery can help people with a certain type of colorectal cancer (dMMR/MSI-H). About 30 adults with stage II or III cancer will get three doses of the drug, then have surgery. Researchers will check if the cancer disappears and watch for side effects over 5 years.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Dec 2032
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with colorectal adenocarcinoma registered and treated at the Cancer Hospital Chinese Academy of Medical Sciences.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age ≥ 18 years, ECOG performance status score 0-2. 2. Pathologically confirmed stage II-III colorectal adenocarcinoma (according to AJCC 8th edition). 3. Histologically confirmed mismatch repair deficient or genetic testing confirmed microsatellite instability high tumor. 4. Signed written informed consent. Exclusion Criteria: 1. The patient has a history of other serious conditions rendering them unsuitable for surgery. 2. Subjects with the following conditions: active autoimmune diseases, active infectious diseases, inflammatory bowel diseases; requiring long-term glucocorticoid or immunosuppressive therapy during treatment; history of immunodeficiency; history of organ transplantation or haematopoietic stem cell transplantation; severe interstitial pneumonia or pulmonary fibrosis. 3. Known hypersensitivity to any component or excipient of tislelizumab or other PD-1/PD-L1 agents. 4. Other conditions deemed unsuitable for inclusion by the investigator.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Cancer Institute and Hospital, Chinese Academy of Medical Sciences
RECRUITINGBeijing, Undefined, China
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