New trial aims to save rectums in early cancer patients
NCT ID NCT07563907
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether adding a short course of chemotherapy after standard chemoradiation can improve outcomes for people with stage I rectal cancer, allowing them to keep their rectum instead of needing major surgery. About 292 participants will be randomly assigned to receive either chemoradiation alone or chemoradiation plus extra chemotherapy before a minor surgical procedure. The goal is to see if the extra chemo leads to a complete disappearance of the tumor and reduces the chance of cancer coming back.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 292 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2035
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.
- Ages
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19 to 79 years
- 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: * Histologically confirmed rectall adenocarcinoma * Low rectal cancer (AV \< 15cm) * cT2N0 disease, or pathologic stage T1N0 disease after endoscopic resection with at least one high-risk feature, including: Positive resection margin Lymphovascular invasion Tumor budding ≥5 * Ability to understand and comply with the requirements of the clinical trial Exclusion Criteria: * Patients who prefer radical rectal resection * Prior history of surgery for rectal cancer * Recurrent rectal cancer * Synchronous metastatic rectal cancer * Evidence of lymph node metastasis or distant metastasis on abdominopelvic CT or chest CT, including para-aortic, common iliac, or external iliac lymph node metastasis * Uncontrolled active infection or other uncontrolled medical condition * Known hypersensitivity to chemotherapy * Patients considered unsuitable for participation in the clinical trial by the principal investigator or study personnel
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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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Seoul National University Hospital
Seoul, Jongro-gu, 03080, South Korea
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Other studies related to the condition(s) this trial covers.
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