Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Gut Microbiome: full-pipeline trial registry
16 of 23 indexed Gut Microbiome trials are currently recruiting.
Corpus placement: #724 of 28,707 conditions by registered trial count.
23 US clinical trials · 16 currently recruiting · #724 of 28,707 conditions by registered trial count
Gut Microbiome: 23 US clinical trials tracked, 16 recruiting.
Gut Microbiome is the subject of 23 registered US clinical trials on ClinicalTrials.gov, 16 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Seeding, running 2 of these trials.
Enrollment posture brief
Registry condition gut-microbiome
OPEN 16 | RECR 70% | LATE 1 | EARLY 1 | RANK #724 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Metastatic Solid Tumor (70% recruiting · 53 trials)
Gut Microbiome lists 16 open slots (70% of 23 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Gut Microbiome on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Gut Microbiome is recruiting above its size-band peers.
16 of 23 indexed trials (69.6%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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Sponsorship of Gut Microbiome trials is spread across many organizations.
Seeding accounts for 2 of 23 trials (8.7%). 20 distinct sponsors appear on at least one study for this condition label.
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Most Gut Microbiome trials plan to enrol fewer than 100 people.
Median target enrolment is 60 among the 23 trials that report a genuine target (sentinel values excluded). 15 of those (65.2%) plan for fewer than 100 participants.
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Gut Microbiome research is mostly interventional.
18 interventional and 5 observational studies make up this index (78.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
23 total, page 1 of 1
Fecal Microbiota Transplant National Registry
American Gastroenterological Association
NCT03325855
Flourish: Exploring the Early Infant Gut Microbiome
Seeding
NCT07333482
A Study to Explore the Role of Gut Flora in COVID-19 Infection
ProgenaBiome
NCT04359836
Early Avocado Exposure on Development and the Gut Microbiome in American Hispanic Infants
Arizona State University
NCT06876935
The Gut Microbiome and Serum Metabolites As a Biological Mechanism Underlying Pain in Kidney Transplantation
University of Illinois at Chicago
NCT06206486
The Path Study: Cognitive and Inflammation Targeted Gut-brain Interventions in Alcohol; Probiotics, Alcohol, Transcutaneous Vagus Nerve Stimulation, and HIV Study
University of Florida
NCT05090267
The Effect Cranberry-Based Products on the Female Microbiome
Ocean Spray Cranberries
NCT07109713
Curcumin and Retinal Study
Texas Tech University Health Sciences Center
NCT05774704
Effects of Mango or Low-Fat Cookie Consumption on Gut Health, and Its Relationship With Mental, Sexual and Skin Health
San Diego State University
NCT06800833
Enhanced Nutritional Optimization in LVAD Trial
Columbia University
NCT05655910
How a Single Workout Affects Gut Bugs in Women With Different Fitness Levels and Body Types
George Washington University
NCT06691100
Impact of Gut Microbiome on Metabolic and Bowel Function During the First Year After Spinal Cord Injury
University of Alabama at Birmingham
NCT05670288
Feasibility and Potential Efficacy of Herbs and Spices for Improving Dietary Quality in College Students: A Pilot Study
University of Nevada, Las Vegas
NCT07082348
Gut Microbiome and Treatment for Gynecological Cancer Patients Receiving Immunotherapy
Viome
NCT04957511
Understanding the Efficacy of Dietary Supplement on Fungal Mycobiota in Healthy Volunteers: A Pilot Study
Weill Medical College of Cornell University
NCT06433310
Garden-fresh Foods and Gut Microbiomes
University of Oregon
NCT06506786
Effects of Complementary Feeding on Infant Growth and Gut Health
University of Colorado, Denver
NCT05012930
Gut Microbe Composition, Exercise, and Breast Breast Cancer Survivors
University of Alabama at Birmingham
NCT04088708
Infant Restore: Efficacy of Microbiome Analysis and Education
Seeding
NCT06424691
Low Sugar Protein Pacing, Intermittent Fasting Diet in Men and Women
Skidmore College
NCT04327141
Salmon Intake and Gut Health in Adults
University of Colorado, Denver
NCT04792216
Yogurt and GI Health
USDA, Western Human Nutrition Research Center
NCT05931471
Fiber Blends and Gut Microbiota (FB)
Washington University School of Medicine
NCT04101344
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Gut Microbiome records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Gut Microbiome trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Gut Microbiome page
23 registered trials, 16 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 16 Gut Microbiome trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Seeding sponsors the most Gut Microbiome trials on record, review their full trial history before evaluating a specific study. See Seeding's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Gut Microbiome condition card totals 23 registered trials; most-linked intervention Consult Call; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.