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ClinicalTrials.gov public records Last synced Oct 30, 2026, 11:49 AM EDT

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Showing 49–72 of 195 matching trials from the live ClinicalTrials.gov search.
Conditions
Inflammatory Bowel Diseases
Interventions
Baseline blood sample, Baseline intestinal biopsies, Crohn's disease activity index (CDAI), Post treatment blood sample, Post treatment intestinal biopsies, Baseline stool sample, Post treatment stool sample
Diagnostic Test · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
2
States / cities
Nashville, Tennessee
Completed Phase 2 Interventional Results available

Niclosamide for Mild to Moderate COVID-19

NCT04399356
Conditions
COVID-19
Interventions
Niclosamide, Placebo, Telehealth monitoring
Drug · Other
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Hepatitis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Immune System Disorder, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Medical Chart Review
Procedure · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
Not listed
Enrollment
2,240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
629
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 405 more
Completed Phase 1 Interventional Accepts healthy volunteers

The Impact of Proton Pump Inhibitors on the Fecal Microbiome

NCT01822977
Conditions
Healthy, Clostridium Difficile Infection
Interventions
omeprazole
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Scottsdale, Arizona
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Exercise, Hypertension, and Gut Dysbiosis in African Americans

NCT03897777
Conditions
Hypertension
Interventions
Exercise Training effect on Hypertension and Gut Dysbiosis
Behavioral
Lead sponsor
North Carolina Agriculture & Technical State University
Other
Eligibility
30 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2030
U.S. locations
1
States / cities
Greensboro, North Carolina
Recruiting Phase 3 Interventional Accepts healthy volunteers

PyloPlus Urea Breath Test System Pediatric Safety and Efficacy Study

NCT05276557
Conditions
Helicobacter Pylori, Safety, Efficacy
Interventions
PyloPlus Urea Breath Test System, Stool Antigen Test
Combination Product · Diagnostic Test
Lead sponsor
ARJ Medical, Inc.
Industry
Eligibility
3 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Doral, Florida • Orlando, Florida • El Paso, Texas
Conditions
Ductal Breast Carcinoma In Situ, Invasive Breast Carcinoma, Stage I Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer
Interventions
Cytology Specimen Collection Procedure, Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Completed No phase listed Observational Accepts healthy volunteers

Infant Immunity Comparison of Breastfed and Bottlefed Infants

NCT02568579
Conditions
Infant Immunity Response and Immunoglobulin Diversity
Interventions
blood sample/ stool sample
Procedure
Lead sponsor
Duke University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
3
States / cities
Los Angeles, California • Chapel Hill, North Carolina • Durham, North Carolina
Completed No phase listed Observational Accepts healthy volunteers

Understanding and Diagnosing Allergic Disease in Twins

NCT01613885
Conditions
Allergies
Interventions
No Intervention
Other
Lead sponsor
Stanford University
Other
Eligibility
0 Years to 80 Years
Enrollment
340 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2019
U.S. locations
2
States / cities
Stanford, California
Conditions
Succinic Semialdehyde Dehydrogenase Deficiency
Interventions
Transcranial magnetic stimulation (TMS), Magnetic resonance imaging (MRI), Electroencephalogram (EEG), Bio-specimen Collection
Device · Procedure
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Not listed
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Esophageal Cancer, Gastric Adenocarcinoma, HER2 Gene Mutation
Interventions
Pembrolizumab, Trastuzumab, Oxaliplatin, Capecitabine, 5-Fluorouracil, Docetaxel, Nutrition questionnaires (optional), stool and saliva samples (optional)
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
10
States / cities
Boston, Massachusetts • Basking Ridge, New Jersey • Middletown, New Jersey + 7 more
Active, not recruiting No phase listed Observational Accepts healthy volunteers

My Baby Biome: Infant Stool Samples for Microbiome Health (MBB)

NCT05472688
Conditions
Dysbiosis
Interventions
Not listed
Lead sponsor
Persephone Biosciences
Industry
Eligibility
0 Months to 2 Months
Enrollment
430 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
San Diego, California
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage 0 Breast Cancer AJCC v8, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8
Interventions
Biospecimen Collection, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Chronic Pancreatitis, Exocrine Pancreas Carcinoma, Recurrent Acute Pancreatitis
Interventions
Biospecimen Collection, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Up to 17 Years
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
22
States / cities
Los Angeles, California • Oakland, California • Palo Alto, California + 17 more
Conditions
Inflammation
Interventions
Chickpea Enhanced Diet (Short term)
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Clostridioides Difficile Infection
Interventions
Health counseling sessions, Diet (control diet), Diet (experimental diet)
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Hematopoietic and Lymphoid Cell Neoplasm
Interventions
Biospecimen Collection, Optical Coherence Tomography, Spirometry, Survey Administration, Digital Photography, Quality-of-Life Assessment, Medical Chart Review
Procedure · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
7
States / cities
Gainesville, Florida • Tampa, Florida • Bethesda, Maryland + 4 more
Conditions
Infections
Interventions
Not listed
Lead sponsor
Southwest Regional Wound Care Center
Other
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2013
U.S. locations
1
States / cities
Lubbock, Texas
Completed No phase listed Observational Accepts healthy volunteers

Normal Blood, Bone Marrow and Buccal Mucosa Protocol

NCT00806364
Conditions
Non-atopic, Atopic, Healthy, Normal, Allergy
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Completed No phase listed Observational Accepts healthy volunteers

Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders

NCT03266068
Conditions
Campylobacter Infections, Irritable Bowel Syndrome
Interventions
DNA Analysis of Blood Sample, Flexible sigmoidoscopy with colonic biopsies, Small bowel and colonic gastrointestinal permeability, Stool sample analysis
Genetic · Procedure · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Inflammatory Breast Carcinoma, Invasive Breast Carcinoma, Second Primary Malignant Neoplasm
Interventions
Biospecimen Collection, Interview, Medical Chart Review, Questionnaire Administration
Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2030
U.S. locations
10
States / cities
Gilbert, Arizona • La Jolla, California • Greeley, Colorado + 6 more
Conditions
Infection
Interventions
Not listed
Lead sponsor
Southwest Regional Wound Care Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lubbock, Texas
Recruiting No phase listed Observational Accepts healthy volunteers

Rheumatology Patient Registry and Biorepository

NCT04402086
Conditions
Rheumatic Diseases, Adult Onset Still Disease, Ankylosing Spondylitis, Psoriatic Arthritis, Reactive Arthritis, Antiphospholipid Syndrome, Systemic Lupus Erythematosus, Behcet Disease, Dermatomyositis, Polymyositis, Giant Cell Arteritis, Lyme Disease, Mixed Connective Tissue Disease, Polymyalgia Rheumatica, Rheumatoid Arthritis, Sarcoidosis, Systemic Sclerosis, Scleroderma, Sjogren's Syndrome, Undifferentiated Connective Tissue Diseases
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
18 Years to 99 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
New Haven, Connecticut