Microbiome Clinical Trials

20 recruiting

Microbiome Trials at a Glance

85 actively recruiting trials for microbiome are listed on ClinicalTrialsFinder across 6 cities in 25 countries. The largest study group is Not Applicable with 32 trials, with the heaviest enrollment activity in Guangzhou, San Diego, and New York. Lead sponsors running microbiome studies include Guangzhou Women and Children's Medical Center, Nutrition Research Australia, and University of Florida.

Browse microbiome trials by phase

Treatments under study

About Microbiome Clinical Trials

Looking for clinical trials for Microbiome? There are currently 20 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Microbiome trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Microbiome clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 85 trials

Recruiting
Not Applicable

Smart Underwear to Measure Diet-Induced Hydrogen Sulfide Production

Gastrointestinal MicrobiomeHydrogen Sulfide
University of Colorado, Denver25 enrolled1 locationNCT06802276
Recruiting
Phase 2

Effects of Cannabidiol and Tetrahydrocannabinol on Microbiome and Neuroinflammation in HIV

MicrobiomeHIVCannabis+3 more
University of California, San Diego90 enrolled1 locationNCT05514899
Recruiting
Not Applicable

The Effects of an Oral Nutritional Intervention on the Small Intestine Microbiome

MicrobiomeMicrobiome Composition
Société des Produits Nestlé (SPN)25 enrolled1 locationNCT07439718
Recruiting

Monitoring of Antimicrobial Resistance Based on Metagenomics Analyses in Pneumonia Patients

PneumoniaMicrobiomeNext-generation Sequencing
Shanghai General Hospital, China800 enrolled1 locationNCT06566898
Recruiting
Not Applicable

Improving Menstrual and VAginal Health for All

Effects of Menstrual Products on the Vaginal Microbiome
Swiss Tropical & Public Health Institute100 enrolled3 locationsNCT06646185
Recruiting
Not Applicable

The Effect of a Synbiotic on Intestinal Barrier Function and Microbiota Modulation in Middle-aged to Elderly Individuals With Excessive Body Weight

Gastrointestinal SymptomsGastrointestinal Microbiome (Focus)
Chr Hansen - part of Novonesis90 enrolled1 locationNCT07453823
Recruiting

Observational Study of Gut Microbiota in Abemaciclib-Treated Patients With and Without Diarrhea

Breast NeoplasmsAbemaciclibHormone Receptor-Positive Breast Cancer+4 more
Hubei Cancer Hospital60 enrolled1 locationNCT07264998
Recruiting
Not Applicable

Comparison of the Effects of Oral Hygiene Regimens on Clinical, Immunomodulatory, and Microbial Outcomes and Oral Tolerance in People With Gingivitis

MicrobiomeCytokines
Kenvue Brands LLC250 enrolled1 locationNCT07501455
Recruiting
Not Applicable

Goat Milk-Derived Formula vs. Undiluted Goat Milk in Infants Unable to Exclusively Breastfeed: Growth and Biomarker Analysis

Gut MicrobiomeLipidomicsMalnutrition (Calorie)+2 more
Aga Khan University15 enrolled1 locationNCT07225153
Recruiting
Not Applicable

Wild Blueberries for Gut, Brain, and Heart Health in Adults With High Blood Pressure

Arterial StiffnessAdultOverweight+13 more
Georgia State University40 enrolled1 locationNCT06735599
Recruiting
Not Applicable

Microbiome and Diet in Parkinson's Disease

Diet, HealthyParkinson DiseaseGut Microbiome+1 more
University of British Columbia40 enrolled1 locationNCT06207136
Recruiting
Not Applicable

Colon-delivered Riboflavin and Gut Microbiota Composition

Microbiome Dysbiosis
dsm-firmenich Switzerland AG90 enrolled1 locationNCT07093463
Recruiting
Not Applicable

Impact of Training Load on the Gut miCrobiome And Its Relation to exeRcise Performance, mUscle Phenotype, and markerS of Overreaching in Healthy Men

ExerciseGut MicrobiomeOverreaching+1 more
Stefan De Smet45 enrolled1 locationNCT07481578
Recruiting

Westlake Frequent-sampling Cohort

Health AdultsStability of Microbiome
Westlake University20 enrolled1 locationNCT07460687
Recruiting
Phase 4

Understanding the Efficacy of Dietary Supplement on Fungal Mycobiota in Healthy Volunteers: A Pilot Study

Gut Microbiome
Weill Medical College of Cornell University20 enrolled1 locationNCT06433310
Recruiting
Not Applicable

Synbiotics in Patients at RIsk fOr Preterm Birth

Microbial ColonizationPreterm BirthPreterm Spontaneous Labor With Preterm Delivery+3 more
Ziekenhuis Oost-Limburg402 enrolled9 locationsNCT05966649
Recruiting
Not Applicable

Flourish: Exploring the Early Infant Gut Microbiome

MicrobiotaMicrobiomeGut Microbiome+1 more
Seeding Inc250 enrolled1 locationNCT07333482
Recruiting

The Role of Brain-Bone Marrow-Gut Interaction Following Major Trauma

MicrobiomeCritical IllnessTrauma+3 more
University of Florida275 enrolled3 locationsNCT06606119
Recruiting
Not Applicable

Effects of Mango or Low-Fat Cookie Consumption on Gut Health, and Its Relationship With Mental, Sexual and Skin Health

Gut Microbiome
San Diego State University60 enrolled1 locationNCT06800833
Recruiting
Not Applicable

Comparison of Microbiome Changes in Healthy Adults Following Ketone Ester Consumption

Microbiome Analysis
University of California, San Francisco20 enrolled1 locationNCT06954675