Clinical trial Recruiting at 1 site Observational Ages 20 to 85

Chronic Loose Stools After Right-Sided Colectomy: How Bile Acids and Gut Bacteria Might Link to Symptoms

Official title: Chronic Loose Stools Following Right-sided Hemicolectomy for Colon Cancer and the Association With Bile Acid Malabsorption and Small Intestinal Bacterial Overgrowth Using a Novel Sampling Device

Run by M.D. Anderson Cancer Center · NCT06927011 · Data updated 2026-11-12

This study tests whether bile acid metabolism and small intestinal bacteria relate to chronic loose stools in patients after right-sided colectomy or total colectomy.

Quick facts

Study typeObservational
Ages20 Years to 85 Years
SexAll
Enrollment20 (estimated)
SponsorM.D. Anderson Cancer Center
Academic / other
Locations1 site (Houston, Texas)
StatusRecruiting
StartedOctober 31, 2025
Main results expectedDecember 30, 2026
Study endsDecember 30, 2028
Registry record updatedJuly 16, 2026
Trial IDNCT06927011 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults of any race or ethnicity who have undergone right-sided colectomy or sigmoid colectomy for colon cancer and have persistent gastrointestinal symptoms.

Probably not a fit

Patients without post-colectomy symptoms or those not suitable for sampling may not see direct personal benefit.

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

What this trial studies

This observational study will collect samples to profile bile acids and gut microbiota at different points in the small intestine and near the remaining colon in patients who had right-sided colectomy or sigmoid colectomy. The goal is to understand how these gut changes relate to persistent gastrointestinal symptoms and quality of life. Participants will undergo the use of a novel sampling device to obtain the required samples. The study is conducted at MD Anderson Cancer Center and does not involve an intervention beyond sampling and observation.

Why it matters

Potential benefit: If successful, findings could help tailor management for symptoms and improve quality of life after colectomy.

How similar studies have gone: Previous research in post-colectomy patients has linked bile acids and microbial changes to symptoms, supporting potential value of this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Both men and women of all races and ethnic groups are eligible for this trial who meet the above criteria.

Exclusion Criteria:

* Children will not be enrolled in this study.
* Pregnant women will not be enrolled in this study.
* Cognitively impaired subjects will not be enrolled in this study.

Where it's running

  • MD Anderson Cancer Center
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

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

  • LTZ-232: a first-in-human test in advanced colorectal and other solid tumors

    A first-in-human study tests LTZ-232, a new therapy for adults with unresectable or metastatic colorectal cancer and other solid tumors that have not responded to standard treatments.

    Recruiting Phase 1 LTZ Therapeutics, Inc. · Scottsdale, Arizona · NCT07878988

  • ctDNA-Guided Immunotherapy for dMMR/MSI-H Colon Cancer

    This study tests whether tracking ctDNA can guide neoadjuvant immunotherapy and surgical decisions for people with dMMR/MSI-H colon cancer, using PD-1 inhibitors first and adding CTLA-4 inhibitors if ctDNA remains detectable.

    Recruiting Phase 2 Fudan University · Shanghai · NCT07841236

  • Tafolecimab with chemoimmunotherapy as neoadjuvant treatment for locally advanced colon cancer

    This study tests whether adding tafolecimab to a chemoimmunotherapy regimen helps shrink locally advanced colon cancer before surgery in adults who have pMMR/MSS tumors.

    Recruiting Phase 2 Daping Hospital and the Research Institute of Surgery of the Third Military Medical University · Chongqing, Chongqing Municipality · NCT07840677

  • Neoadjuvant pembrolizumab and porustobart for resectable MSS colon cancer

    This trial tests whether giving pembrolizumab with porustobart before surgery can shrink MSS colon cancer and improve outcomes, comparing one versus two doses of porustobart.

    Recruiting at 3 sites Phase 2 Solstice Oncology, Inc. · Los Angeles, California and 29 other locations · NCT07808151

  • DEM301 in advanced colorectal cancer: a first-in-human test

    This first-in-human Phase 1 study tests DEM301 in adults with advanced metastatic colorectal cancer to see if it is safe, how it behaves in the body, and whether it shows any signs of activity.

    Recruiting at 2 sites Phase 1 DEM BioPharma, Inc. · Birtinya, Queensland and 1 other locations · NCT07805369

  • SHY-ONC6: a new anti-cancer drug tested in adults with advanced solid tumors

    This early-phase study tests SHY-ONC6 to see if it is safe and can help people with advanced solid tumors after standard therapies have failed.

    Recruiting at 3 sites Phase 1 SHY Therapeutics · Scottsdale, Arizona and 2 other locations · NCT07705334

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.