Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Preoperative postbiotic (butyrate) given before colorectal cancer surgery

Official title: Randomized Clinical Trial on the Use of Preoperative Postbiotic Supplementation in Colorectal Cancer Surgery

Run by AC Camargo Cancer Center · NCT07268846 · Data updated 2026-11-12

This trial will test whether taking a 900 mg daily postbiotic (butyrate) for seven days before elective colorectal cancer surgery helps reduce postoperative complications.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment164 (estimated)
SponsorAC Camargo Cancer Center
Academic / other
Drugs / interventionschemotherapy
Locations1 site (São Paulo, São Paulo)
StatusRecruiting
StartedJune 1, 2025
Main results expectedJune 1, 2027
Study endsJune 1, 2027
Registry record updatedDecember 8, 2025
Trial IDNCT07268846 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults over 18 with confirmed colorectal adenocarcinoma scheduled for elective (non-emergency) intestinal resection who can provide informed consent are the intended participants.

Probably not a fit

Patients undergoing emergency or urgent surgery, cytoreductive operations with intraoperative intraperitoneal chemotherapy, or extended procedures for recurrent tumors are excluded and unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Participants with localized colorectal adenocarcinoma scheduled for elective resection will be assigned to one of two groups to receive either 900 mg of oral butyrate daily or a matching placebo for seven days prior to surgery. The study plans to enroll 164 participants over about two years at A.C. Camargo Cancer Center and will compare postoperative complication rates between the two groups. The rationale is based on evidence that microbially derived metabolites such as short-chain fatty acids can modulate immunity and support intestinal barrier integrity. The trial aims to determine whether short-term preoperative supplementation can translate these effects into fewer surgical complications.

Why it matters

Potential benefit: If effective, this simple preoperative supplement could substantially lower postoperative complications, reduce morbidity, and decrease related healthcare costs.

How similar studies have gone: Preclinical work and some clinical data suggest short-chain fatty acids like butyrate support gut barrier function and modulate immunity, but randomized clinical evidence showing reduced postoperative complications after preoperative postbiotic use is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Individuals diagnosed with malignant neoplasm of the large intestine, specifically adenocarcinoma.
* Patients over 18 years of age, of both sexes.
* Patients who agree to participate in the study and sign the informed consent form.

Exclusion Criteria:

* Emergency or urgent surgeries.
* Cytoreductive surgeries involving intraoperative intraperitoneal chemotherapy.
* Extended surgeries for the treatment of recurrent tumors.

Where it's running

  • A.C.Camargo Cancer Center
    São Paulo, São Paulo, Brazil
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.