Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 31, 2026, 8:44 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 145–168 of 178 matching trials from the live ClinicalTrials.gov search.
Conditions
Heart Failure
Interventions
Blood Sample, Stool Sample
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Completed No phase listed Observational

C.Difficile Observational Study

NCT06277999
Conditions
Clostridium Infections
Interventions
Not listed
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
7
States / cities
Sacramento, California • Hamden, Connecticut • Boston, Massachusetts + 3 more
Completed No phase listed Observational Accepts healthy volunteers

Head to Head Study Epi proColon and FIT

NCT01580540
Conditions
Colorectal Cancer
Interventions
Not listed
Lead sponsor
Epigenomics, Inc
Industry
Eligibility
50 Years to 84 Years
Enrollment
336 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
69
States / cities
Birmingham, Alabama • Casa Grande, Arizona • Tucson, Arizona + 57 more
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Mechanisms of Hypoglycemia in Patients Without Diabetes

NCT04428723
Conditions
Hypoglycemia
Interventions
Entry of demographic and medical history data into a deidentified database, Blood sample for DNA analysis, Stool sample for microbiome analysis, Mixed meal tolerance test, Continuous glucose monitoring, activity monitor
Other · Genetic · Diagnostic Test
Lead sponsor
Joslin Diabetes Center
Other
Eligibility
18 Years to 70 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Colorectal Adenoma, Colorectal Carcinoma
Interventions
Aspirin, Biospecimen Collection, Placebo Administration, Questionnaire Administration, Rectal Biopsy
Drug · Procedure · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Completed Not applicable Interventional Accepts healthy volunteers

Analyzing IBS to Identify Biomarkers and Microbiome Signatures

NCT02419963
Conditions
Diarrhoea Predominant Irritable Bowel Syndrome, IBS
Interventions
endoscopy for tissue biopsy, Blood Sample, Stool Sample
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Scottsdale, Arizona
Completed No phase listed Observational Accepts healthy volunteers

The Human Microbiome in Immune-Mediated Diseases

NCT02394964
Conditions
Autoimmune
Interventions
Sample Collection
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • New York, New York
Conditions
Pancreas Cyst
Interventions
Blood, stool, pancreatic juice and cyst fluid collection, Pancreatic Surgery, Endoscopy Exam
Diagnostic Test · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Advancing Prevention of Pulmonary Fibrosis

NCT04564183
Conditions
IPF, Pulmonary Fibrosis, ILD
Interventions
Sample collection, Questionnaires, High resolution CT scan of the chest, Pulmonary Function Test
Other · Radiation · Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 75 Years
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Breast Cancer
Interventions
Blood & Fecal Collection
Other
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Little Rock, Arkansas
Conditions
Castration-Sensitive Prostate Carcinoma, Metastatic Prostate Adenocarcinoma, Stage IVB Prostate Cancer AJCC v8
Interventions
Abiraterone, Biospecimen Collection, Bone Scan, Computed Tomography, Docetaxel, Enzalutamide, FDG-Positron Emission Tomography, Magnetic Resonance Imaging, PSMA PET Scan, Vudalimab
Drug · Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Male only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Atlanta, Georgia
Conditions
DNA Repair Disorder, Cockayne Syndrome, Xeroderma Pigmentosum, Trichothiodystrophy
Interventions
Interval History, Physical Examination, ECAB Assessment, Gait Assessment, Specimen Sample Collection
Other
Lead sponsor
University of Minnesota
Other
Eligibility
6 Months and older
Enrollment
40 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Prostate Cancer, Cancer of the Prostate
Interventions
Low-count quantitative single-photon emission computed tomography imaging
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Male only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Electronic Health Record Review, Interview, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Other
Lead sponsor
University of Rochester NCORP Research Base
Other
Eligibility
18 Years and older
Enrollment
2,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
259
States / cities
Jonesboro, Arkansas • Anaheim, California • Antioch, California + 203 more
Completed No phase listed Observational Accepts healthy volunteers

Role of Intestinal Inflammation in the Pathogenesis of Type 1 Diabetes

NCT01940835
Conditions
Type 1 Diabetes
Interventions
Upper endoscopy with small bowel biopsies and brushings., Blood draw, Stool sample
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Non Small Cell Lung Cancer, Healthy
Interventions
blood, stool and tissue samples collection
Other
Lead sponsor
OncoHost Ltd.
Industry
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Chemotherapy-Related Nausea and/or Vomiting, Early Stage Breast Carcinoma, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8
Interventions
Biospecimen Collection, Questionnaire Administration
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
5
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Albert Lea, Minnesota + 2 more
Conditions
Autoimmune Disease, Crohn Disease, Dermatomyositis, Hematopoietic and Lymphoid Cell Neoplasm, Inflammatory Bowel Disease, Malignant Solid Neoplasm, Multiple Sclerosis, Psoriasis, Psoriatic Arthritis, Rheumatoid Arthritis, Sjogren Syndrome, Systemic Lupus Erythematosus, Systemic Scleroderma, Ulcerative Colitis
Interventions
Biospecimen Collection, Cabozantinib, Fluoropyrimidine, Ipilimumab, Nivolumab, Platinum Compound, Platinum Doublet
Procedure · Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
51
States / cities
Birmingham, Alabama • Palo Alto, California • Sacramento, California + 37 more
Completed No phase listed Observational Accepts healthy volunteers

The Role of Gut Microbiota in Hypertension

NCT02188381
Conditions
Hypertension
Interventions
Stool Sample and Blood Sample
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 80 Years
Enrollment
292 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Recruiting No phase listed Observational Accepts healthy volunteers

The Impact of COVID-19 on Maternal and Neonatal Outcomes

NCT05197621
Conditions
COVID-19, Pregnancy; Infection
Interventions
mRNA COVID-19 vaccine (Pfizer or Moderna)
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
14 Years to 55 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Advanced Bladder Urothelial Carcinoma, Advanced Ureter Urothelial Carcinoma, Metastatic Bladder Urothelial Carcinoma, Metastatic Renal Pelvis Urothelial Carcinoma, Metastatic Ureter Urothelial Carcinoma, Metastatic Urethral Urothelial Carcinoma, Metastatic Urothelial Carcinoma, Recurrent Bladder Urothelial Carcinoma, Recurrent Renal Pelvis Urothelial Carcinoma, Recurrent Ureter Urothelial Carcinoma, Recurrent Urethral Urothelial Carcinoma, Stage III Bladder Cancer AJCC v8, Stage III Renal Pelvis Cancer AJCC v8, Stage III Ureter Cancer AJCC v8, Stage III Urethral Cancer AJCC v8, Stage IV Bladder Cancer AJCC v8, Stage IV Renal Pelvis Cancer AJCC v8, Stage IV Ureter Cancer AJCC v8, Stage IV Urethral Cancer AJCC v8, Stage IVA Bladder Cancer AJCC v8, Stage IVB Bladder Cancer AJCC v8, Unresectable Bladder Urothelial Carcinoma, Unresectable Renal Pelvis Urothelial Carcinoma, Unresectable Ureter Urothelial Carcinoma
Interventions
Atezolizumab, Biopsy, Biospecimen Collection, Computed Tomography, Glycosylated Recombinant Human Interleukin-7, Laboratory Biomarker Analysis, Magnetic Resonance Imaging, Positron Emission Tomography and Computed Tomography Scan
Drug · Procedure · Biological + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
9
States / cities
Riverside, California • Tampa, Florida • Honolulu, Hawaii + 5 more
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Electronic Health Record Review
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 99 Years
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2030
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Conditions
Pulmonary Arterial Hypertension
Interventions
MTT with antibiotic preconditioning + fiber supplementation, MTT with antibiotic preconditioning + placebo supplementation, MTT with placebo + placebo supplementation.
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
Sepsis, Systemic Inflammatory Response Syndrome, Infection Mixed, Infection, Bacterial, Infection, Fungal, Infection, Coronavirus, Antibiotic Resistance Genes, Human Genome Analysis
Interventions
Gene Z or other rapid diagnostic techniques developed in our lab (as of 2018 not using Gene Z - now using In-Dx along with other developed techniquesregularly)
Device
Lead sponsor
Michigan State University
Other
Eligibility
18 Years and older
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2032
U.S. locations
2
States / cities
Lansing, Michigan