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Showing 1–24 of 192 matching trials from the live ClinicalTrials.gov search.
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Completed Early Phase 1 Interventional

Vaginal lIve Biotherapeutic RANdomized Trial

NCT06135974
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
LC106, LC115, Placebo, Metronidazole Oral
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Sep 11, 2026, 4:48 PM EDT
Recruiting Phase 1Phase 2 Interventional

Study of EXE-346 Live Biotherapeutic to Reduce High Bowel Movement Frequency in Subjects With an IPAA (PROF)

NCT05938465
View directory record Official record
Conditions
Ileal Pouch
Interventions
EXE-346, Placebo
Biological · Other
Lead sponsor
Exegi Pharma, LLC
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
8
States / cities
Los Angeles, California • Jacksonville, Florida • Grand Rapids, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional

Lactobacillus Plantarum as Therapy for NK-T Cell Deficiency

NCT00011141
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Oral lactobacillus administration
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
1 Year to 95 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 11, 2026, 4:48 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Trenev Trio®/Healthy Trinity® for Recurrent Gastrointestinal Symptoms

NCT01444859
View directory record Official record
Conditions
Recurrent Gastrointestinal Symptoms
Interventions
Trenev Trio®/Healthy Trinity®, Placebo
Dietary Supplement
Lead sponsor
Sprim Advanced Life Sciences
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
5
States / cities
Los Angeles, California • San Francisco, California • West Lawn, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 23, 2012 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional

A Study of the Effect of Probiotics on Gastrointestinal Function During Pregnancy

NCT03320226
View directory record Official record
Conditions
Pregnancy Early, Nausea Gravidarum, Vomiting of Pregnancy
Interventions
Probiotic 10 (Nature's Bounty)
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 8, 2023 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Randomized-Controlled Trial to Examine the Effects of a Daily Probiotic Supplement on Common Symptoms of Menopause

NCT06148714
View directory record Official record
Conditions
Menopause
Interventions
Provitalize Natural Menopause Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Maneuver Marketing
Industry
Eligibility
45 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Nov 19, 2024 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acidophilus Pearls Fecal Recovery Study

NCT02001610
View directory record Official record
Conditions
Survival of Probiotics During GI Transit, GI Symptoms
Interventions
Acidophilus pearls, Hard shell gelatin capsules
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 7, 2017 · Synced Sep 11, 2026, 4:48 PM EDT
Not listed Not applicable Interventional

Effects of a Multispecies Probiotic on Migraine

NCT04696458
View directory record Official record
Conditions
Migraine, Irritable Bowel Syndrome, Headache, Migraine
Interventions
Lactobacillus plantarum (CECT7484 and CECT7485)/ Pediococcus acidilactici (CECT7483), Placebo Comparator: Placebo
Dietary Supplement · Other
Lead sponsor
Scripps Health
Other
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Nov 22, 2022 · Synced Sep 11, 2026, 4:48 PM EDT
Not listed Phase 2Phase 3 Interventional Accepts healthy volunteers

Multistrain Probiotic for Functional Constipation

NCT01618617
View directory record Official record
Conditions
Functional Constipation
Interventions
High dose Multistrain probiotic, 100 billion cfu/day, Low dose Multistrain probiotic, 15 billion cfu/day
Dietary Supplement
Lead sponsor
Renew Life Formulas Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 29, 2012 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Evaluation of Effects of an Investigational Tampon on Vaginal Microflora

NCT00913523
View directory record Official record
Conditions
Vaginal Microflora
Interventions
Experimental - Tampon with GML, Sham Control - Tampons without GML
Device
Lead sponsor
Johnson & Johnson Consumer and Personal Products Worldwide
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
482 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
2
States / cities
Scottsdale, Arizona • St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Aug 22, 2011 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Phase 3 Interventional

Lactobacillus GG in the Prophylaxis of Ventilator Associated Pneumonia

NCT00613795
View directory record Official record
Conditions
Pneumonia, Ventilator Associated Pneumonia
Interventions
Lactobacillus GG, placebo
Dietary Supplement
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 17, 2010 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional

A Study to Assess the Efficacy and Safety of Salix Probiotic Blend in Participants With Functional Gastrointestinal Disturbances

NCT04155801
View directory record Official record
Conditions
Functional Gastrointestinal Disorders
Interventions
Salix Probiotic Blend
Dietary Supplement
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2020 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional

A Single Group Study to Evaluate the Effects of a Probiotic Vaginal Suppository on Vaginal Health.

NCT06565312
View directory record Official record
Conditions
Vaginal Health, Vaginal pH
Interventions
Flora Power Probiotic Vaginal Suppository
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Phase 4 Interventional Results available

Probiotics to Promote Intestinal Health

NCT02046512
View directory record Official record
Conditions
Communicable Diseases, Infection, Anti-Infective Agents, Therapeutic Uses, Pharmacologic Actions
Interventions
Probiotic, Placebo
Dietary Supplement · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 3, 2022 · Synced Sep 11, 2026, 4:48 PM EDT
Terminated Not applicable Interventional

Lactobacillus in Preventing Infection in Patients Undergoing a Donor Stem Cell Transplant for Hematologic Cancer or Myelodysplastic Syndrome

NCT00946283
View directory record Official record
Conditions
Breast Cancer, Chronic Myeloproliferative Disorders, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Neuroblastoma, Ovarian Cancer, Testicular Germ Cell Tumor
Interventions
Lactobacillus rhamnosus GG
Dietary Supplement
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 120 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 2, 2017 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional

Evaluation of Jarro-Dophilus EPS® Probiotic Formulations

NCT02693314
View directory record Official record
Conditions
Healthy
Interventions
Jarro-Dophilus EPS® (5 billion CFU/capsule), Jarro-Dophilus EPS® High Potency (25 billion CFU/capsule), Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Correlating Probiotic Dietary Supplements During Pregnancy With Maternal Microbiome Profiles

NCT03611647
View directory record Official record
Conditions
Pregnancy Related
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
3
States / cities
La Jolla, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 10, 2019 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Lactobacillus Plantarum KABP-51 Probiotic on Body Composition, Microbiome and Mood in Healthy Overweight Adults

NCT06808061
View directory record Official record
Conditions
Weight Loss, Mood
Interventions
Lactobacillus plantarum, Placebo
Dietary Supplement
Lead sponsor
3 Waves Wellness
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Phase 1 Interventional Results available

Biological Signatures, Probiotic Among Those With mTBI and PTSD

NCT02723344
View directory record Official record
Conditions
Mild Traumatic Brain Injury, Post Traumatic Stress Disorder
Interventions
of Lactobacillus reuteri (L. reuteri; DSM 17938), Sunflower and medium chain triglyceride oils
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 50 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 17, 2020 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Disentangling Anxiety Sensitivity and Anxiety-induced Physiological Stress Response

NCT02372110
View directory record Official record
Conditions
Anxiety
Interventions
HPA, ANS stimulation, Placebo
Drug
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Sep 11, 2026, 4:48 PM EDT
Withdrawn Phase 4 Interventional

Addition of Lactobacillus to Metronidazole in Treatment of CDAD

NCT00304863
View directory record Official record
Conditions
Enterocolitis, Pseudomembranous Colitis, Antibiotic-associated Colitis
Interventions
Lactobacillus GG
Drug
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Healthy Volunteers

NCT00934453
View directory record Official record
Conditions
Healthy
Interventions
Lactobacillus rhamnosus GG ATCC 53103, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 11, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Probiotic Supplementation on Immune Function in Healthy Infants

NCT01542320
View directory record Official record
Conditions
Inflammation
Interventions
Lactobacillus reuteri DSM 17938, Placebo
Dietary Supplement · Other
Lead sponsor
Emory University
Other
Eligibility
6 Weeks to 32 Weeks
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 5, 2015 · Synced Sep 11, 2026, 4:48 PM EDT
Recruiting Phase 2 Interventional

Synbiotic Compound to Reduce Symptoms of Schizophrenia

NCT04226898
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Synbiotic Supplement, Inert Compound
Biological
Lead sponsor
Sheppard Pratt Health System
Other
Eligibility
18 Years to 65 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Batlimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 11, 2026, 4:48 PM EDT