Fecal Microbiota Transplant and Re-introduction of Anti-PD-1 Therapy (Pembrolizumab or Nivolumab) for the Treatment of Metastatic Colorectal Cancer in Anti-PD-1 Non-responders
Public ClinicalTrials.gov record NCT04729322. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Pilot Trial of Fecal Microbiota Transplantation and Re-Introduction of Anti-PD-1 Therapy in dMMR Colorectal Adenocarcinoma Anti-PD-1 Non-Responders
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This phase II trial studies the effect of fecal microbiota transplant and re-introduction of anti-PD-1 therapy (pembrolizumab or nivolumab) in treating anti-PD-1 non-responders with colorectal cancer that has spread to other places in the body (metastatic). Fecal microbiota transplants contain the normal bacteria and viruses found in fecal (stool) material. Immunotherapy with monoclonal antibodies, such as pembrolizumab and nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab or nivolumab with fecal microbiota transplants may help to control the disease.
Study identification
- NCT ID
- NCT04729322
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 15 participants
Conditions and interventions
Conditions
Interventions
- Biopsy Procedure
- Fecal Microbiota Transplantation Procedure
- Fecal Microbiota Transplantation Capsule Drug
- Metronidazole Drug
- Neomycin Drug
- Nivolumab Biological
- Pembrolizumab Biological
- Questionnaire Administration Other
- Vancomycin Drug
Procedure · Drug · Biological + 1 more
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 21, 2021
- Primary completion
- Dec 30, 2027
- Completion
- Dec 30, 2027
- Last update posted
- Jun 11, 2026
2021 – 2027
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| M D Anderson Cancer Center | Houston | Texas | 77030 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04729322, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 11, 2026 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04729322 live on ClinicalTrials.gov.