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PD-1 Inhibitor

Fecal Microbiota Transplant + Anti-PD-1 Therapy for Metastatic Colorectal Cancer

Phase 2
Waitlist Available
Led By Michael J Overman
Research Sponsored by M.D. Anderson Cancer Center
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 3 years post-treatment
Awards & highlights
All Individual Drugs Already Approved
Approved for 30 Other Conditions
No Placebo-Only Group

Summary

This trial is testing the effect of fecal microbiota transplants and re-introduction of anti-PD-1 therapy in treating people with colorectal cancer that has spread to other places in the body and who did not respond to anti-PD-1 therapy.

Who is the study for?
This trial is for adults with metastatic colorectal cancer that didn't respond to anti-PD-1 therapy. They must have a certain type of tumor (dMMR or MSI-H), good kidney and liver function, no severe allergies to pembrolizumab or nivolumab, not be pregnant, and agree to use effective contraception.
What is being tested?
The study tests if fecal microbiota transplants combined with pembrolizumab or nivolumab can help control metastatic colorectal cancer in patients who previously did not respond to anti-PD-1 therapies. It includes questionnaires, antibiotics before the transplant, biopsies, and follow-up assessments.
What are the potential side effects?
Possible side effects include reactions related to the immune system such as inflammation in various organs due to pembrolizumab or nivolumab. The fecal transplant could cause digestive issues like bloating or discomfort.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 3 years post-treatment
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 3 years post-treatment for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Objective response rate

Side effects data

From 2024 Phase 3 trial • 804 Patients • NCT03040999
64%
Radiation skin injury
63%
Stomatitis
58%
Anaemia
56%
Nausea
48%
Dry mouth
45%
Constipation
45%
Weight decreased
44%
Dysphagia
42%
Neutrophil count decreased
33%
Dysgeusia
33%
Vomiting
32%
Fatigue
31%
White blood cell count decreased
28%
Hypomagnesaemia
26%
Decreased appetite
25%
Hypothyroidism
25%
Hypokalaemia
24%
Lymphocyte count decreased
24%
Platelet count decreased
23%
Oropharyngeal pain
23%
Blood creatinine increased
22%
Diarrhoea
22%
Odynophagia
20%
Hypoacusis
20%
Alanine aminotransferase increased
20%
Hyponatraemia
19%
Tinnitus
19%
Oral candidiasis
19%
Asthenia
16%
Pyrexia
16%
Cough
15%
Aspartate aminotransferase increased
15%
Rash
14%
Insomnia
13%
Acute kidney injury
13%
Pharyngeal inflammation
13%
Pruritus
12%
Dysphonia
12%
Gamma-glutamyltransferase increased
11%
Pneumonia
11%
Dehydration
10%
Hyperthyroidism
10%
Hypoalbuminaemia
10%
Hypocalcaemia
10%
Headache
10%
Productive cough
9%
Neck pain
9%
Peripheral sensory neuropathy
8%
Gastrooesophageal reflux disease
8%
Hiccups
8%
Hyperglycaemia
8%
Hyperuricaemia
8%
Dizziness
8%
Hypophosphataemia
7%
Urinary tract infection
7%
Ear pain
7%
Localised oedema
7%
Hyperkalaemia
7%
Erythema
7%
Oral pain
6%
Abdominal pain upper
6%
Arthralgia
6%
Anxiety
6%
Febrile neutropenia
6%
Dyspepsia
6%
Saliva altered
5%
Back pain
5%
Oedema peripheral
5%
Hypertension
5%
Dyspnoea
4%
Nasopharyngitis
4%
Alopecia
4%
Dry skin
3%
Sepsis
3%
Pneumonia aspiration
3%
Trismus
3%
Pneumonitis
3%
Laryngeal oedema
2%
Malnutrition
2%
Pharyngeal haemorrhage
2%
Cellulitis
1%
Septic shock
1%
Systemic infection
1%
Clostridium difficile colitis
1%
Cardiac arrest
1%
Death
1%
Bronchitis
1%
Hepatitis
1%
Immune-mediated hepatitis
1%
Oesophagitis
1%
General physical health deterioration
1%
Hypophagia
1%
Tumour haemorrhage
1%
Cerebrovascular accident
1%
Syncope
1%
Acute respiratory failure
1%
Aspiration
1%
Colitis
1%
Mouth haemorrhage
1%
Hypersensitivity
1%
Acute myocardial infarction
1%
Abscess neck
1%
Device related infection
1%
Stoma site infection
1%
Vascular device infection
1%
Wound infection
1%
Hypercalcaemia
1%
Pulmonary embolism
1%
Respiratory failure
100%
80%
60%
40%
20%
0%
Study treatment Arm
Pembrolizumab + CRT Followed by Pembrolizumab
Placebo + CRT Followed by Placebo

Awards & Highlights

All Individual Drugs Already Approved
Therapies where all constituent drugs have already been approved are likely to have better-understood side effect profiles.
Approved for 30 Other Conditions
This treatment demonstrated efficacy for 30 other conditions.
No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups
Experimental Treatment
Group I: Arm II (FMT, nivolumab)Experimental Treatment7 Interventions
Patients receive metronidazole PO Q8H on days -14 to -8 and then vancomycin PO Q6H and neomycin PO Q6H on days -8 to -6. Patients then undergo colonoscopic FMT on day -5. POST-COLONOSCOPIC FMT: Patients receive standard of care nivolumab IV over 30 minutes on day 1. Patients also receive fecal microbiota transplantation capsule PO on days 1 and 8 of cycles 1-2. Beginning in cycle 4, patients receive fecal microbiota transplantation capsule PO on day 1 of every other cycle. Cycles repeat every 14 days for up to 6 months in the absence of disease progression or unacceptable toxicity.
Group II: Arm I (FMT, pembrolizumab)Experimental Treatment8 Interventions
Patients receive metronidazole PO Q8H on days -14 to -8 and then vancomycin PO Q6H and neomycin PO Q6H on days -8 to -6. Patients then undergo colonoscopic FMT on day -5. POST-COLONOSCOPIC FMT: Patients receive standard of care pembrolizumab IV over 30 minutes on day 1. Patients also receive fecal microbiota transplantation capsule PO on days 1, 8, and 15 of cycle 1. Beginning in cycle 2, patients receive fecal microbiota transplantation capsule PO on day 1. Cycles repeat every 21 days for up to 6 months in the absence of disease progression or unacceptable toxicity.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Vancomycin
FDA approved
Nivolumab
FDA approved
Biopsy
2014
Completed Phase 4
~1150
Fecal Microbiota Transplantation
2020
Completed Phase 2
~440
Metronidazole
FDA approved
Neomycin
FDA approved
Pembrolizumab
FDA approved

Find a Location

Who is running the clinical trial?

M.D. Anderson Cancer CenterLead Sponsor
3,074 Previous Clinical Trials
1,803,530 Total Patients Enrolled
National Cancer Institute (NCI)NIH
13,958 Previous Clinical Trials
41,112,565 Total Patients Enrolled
Michael J OvermanPrincipal InvestigatorM.D. Anderson Cancer Center
5 Previous Clinical Trials
305 Total Patients Enrolled

Media Library

Nivolumab (PD-1 Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT04729322 — Phase 2
Nivolumab (PD-1 Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04729322 — Phase 2
Colorectal Cancer Research Study Groups: Arm I (FMT, pembrolizumab), Arm II (FMT, nivolumab)
Colorectal Cancer Clinical Trial 2023: Nivolumab Highlights & Side Effects. Trial Name: NCT04729322 — Phase 2
~3 spots leftby Dec 2025