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ClinicalTrials.gov public records Last synced Oct 23, 2026, 2:26 AM EDT

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Showing 793–816 of 919 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: No intervention (observational study) Clear all
Completed Phase 2 Interventional Results available

Metformin for the Minimization of Geographic Atrophy Progression in Patients With AMD

NCT02684578
View directory record Official record
Conditions
Age-Related Macular Degeneration, Macular Degeneration, Age-Related, Dry Macular Degeneration, Geographic Atrophy
Interventions
Metformin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
12
States / cities
Davis, California • Palo Alto, California • Sacramento, California + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2023 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Vidatalk Communication Application: Usability, Acceptability and Efficacy Study

NCT02921776
View directory record Official record
Conditions
Nonverbal Communication, Critical Illness
Interventions
Aim 1 - VidaTalk - post-extubation, Aim 2 - VidaTalk - intubated, Aim 3 - VidaTalk tablet app, Aim 3 - attention-control with non-VidaTalk tablet
Other · Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 99 Years
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 23, 2026, 2:26 AM EDT
Completed No phase listed Observational

MOms in REcovery (MORE) Study: Defining Optimal Care

NCT04251208
View directory record Official record
Conditions
Opioid-Related Disorders, NAS, Substance Use Disorders
Interventions
Observational Study
Other
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
16 Years to 50 Years · Female only
Enrollment
444 participants
Timeline
2019 – 2024
U.S. locations
10
States / cities
Augusta, Maine • Bangor, Maine • Keene, New Hampshire + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2024 · Synced Oct 23, 2026, 2:26 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Predicting Sleep, Smoking, and Lung Health Disparities in African American Adults

NCT03534076
View directory record Official record
Conditions
Sleep, Lung Diseases, Smoking
Interventions
Cohort Observational study
Other
Lead sponsor
Temple University
Other
Eligibility
40 Years to 67 Years
Enrollment
303 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 23, 2026, 2:26 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Ocular Surface Dry Eye Microbiome

NCT02306668
View directory record Official record
Conditions
Dry Eyes
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 3, 2014 · Synced Oct 23, 2026, 2:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Related Health and Infection Control Practices Among Dentists

NCT04423770
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome Coronavirus 2
Interventions
No intervention
Other
Lead sponsor
American Dental Association
Other
Eligibility
18 Years and older
Enrollment
2,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Phase 3 Interventional

Observational Study Of A Protease Inhibitor (PI) Containing Regimen In Subjects With PI Mutations Selected During Prior Treatment With GW433908 (Fosamprenavir)

NCT00242840
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus I, HIV Infection
Interventions
No intervention; Observational study
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
13 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
6
States / cities
Fort Lauderdale, Florida • Orlando, Florida • Tampa, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional

The Referral to Hepatology Can be Improved Through an Electronic Medical Record (EMR)-Based Best Practice Alert (BPA) for an Appropriate Referral

NCT07580482
View directory record Official record
Conditions
Liver Diseases, Liver Fat, Diabetes Mellitus, Type 2, Non-Alcoholic Steatohepatitis
Interventions
Best Practice Alert, No Intervention
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 23, 2026, 2:26 AM EDT
Recruiting No phase listed Observational

Multi-level Predictors of Structural Racism and Discrimination and Associations With Health and Well-being Across the Life Course in Diverse Families

NCT05744973
View directory record Official record
Conditions
Racially/Ethnically Diverse Families From Urban Settings
Interventions
No intervention
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
8 Years to 18 Years
Enrollment
631 participants
Timeline
2022 – 2028
U.S. locations
2
States / cities
Athens, Georgia • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional

Intraventricular Hemorrhage and Post Hemorrhagic Ventricular Dilation: Natural Course, Treatment, and Outcome

NCT00957840
View directory record Official record
Conditions
Intraventricular Hemorrhage, Premature Infants
Interventions
NIRS, aEEG, and CSF concentration of biomarkers
Procedure
Lead sponsor
University of Utah
Other
Eligibility
Up to 1 Year
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 6, 2015 · Synced Oct 23, 2026, 2:26 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Symptoms of Lower Urinary Tract Dysfunction Phenotyping Study

NCT02485808
View directory record Official record
Conditions
Lower Urinary Tract Symptoms
Interventions
None-observational, Magnetic Resonance Imaging (MRI), Multimodal Automated Sensory Testing System, Auditory Sensitivity Test
Other · Procedure
Lead sponsor
Arbor Research Collaborative for Health
Other
Eligibility
18 Years and older
Enrollment
1,879 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
6
States / cities
Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Reducing Episodes by Septal Pacing Efficacy Confirmation Trial (RESPECT)

NCT00289289
View directory record Official record
Conditions
Atrial Fibrillation, Tachycardia, Supraventricular, Arrhythmia, Bradycardia
Interventions
Intervention Pacing Features
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
34
States / cities
Little Rock, Arkansas • Rancho Mirage, California • San Diego, California + 31 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2012 · Synced Oct 23, 2026, 2:26 AM EDT
Recruiting Phase 2 Interventional

A Study of MK-5684 in People With Certain Solid Tumors (MK-5684-015/OMAHA-015)

NCT06979596
View directory record Official record
Conditions
Malignant Neoplasm
Interventions
Opevesostat, Fludrocortisone/ Fludrocortisone acetate, Dexamethasone/Dexamethasone acetate, Rescue Medications, Fulvestrant, Exemestane, Megestrol acetate/Medroxyprogesterone acetate, Tamoxifen, Letrozole
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
10
States / cities
Anchorage, Alaska • Miami Beach, Florida • Shreveport, Louisiana + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Platelet-Rich Fibrin in the Healing of Regional and Free Flaps

NCT04023474
View directory record Official record
Conditions
Head and Neck Disorder, Free Flap
Interventions
Platelet Rich Fibrin (PRF) Application
Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 30, 2020 · Synced Oct 23, 2026, 2:26 AM EDT
Enrolling by invitation Not applicable Interventional

Targeted Prehabilitation With Physical Exercise and Inspiratory Muscle Training for Elderly Frail Patients Prior to Ventral Hernia Repair

NCT06874413
View directory record Official record
Conditions
Frailty, Ventral Hernia
Interventions
Prehabilitation, Standard of Care (SOC)
Behavioral · Other
Lead sponsor
Prisma Health-Upstate
Other
Eligibility
65 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 23, 2026, 2:26 AM EDT
Completed No phase listed Observational

Impact of Pre-transplant Anti-fibrotic Therapy for IPF Upon Lung Transplant Outcomes

NCT04316780
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
Retrospective observational study- no intervention to occur.
Other
Lead sponsor
Steward St. Elizabeth's Medical Center of Boston, Inc.
Other
Eligibility
Not listed
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
8
States / cities
Iowa City, Iowa • Boston, Massachusetts • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated May 20, 2021 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional

Tobacco Treatment Medical Education in 10 Medical Schools

NCT01905618
View directory record Official record
Conditions
Tobacco Use Disorder, Smoking Cessation
Interventions
Web-based curriculum on tobacco dependence treatment, Tobacco Counseling Role Play, Preceptor Training and Teaching Medical Students, Booster Session
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
13
States / cities
Birmingham, Alabama • Stanford, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2015 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Randomized Study of Failed SCS Trials Comparing Outcomes Using the Observational Mechanical Gateway (OMG) Connector

NCT01643213
View directory record Official record
Conditions
Chronic Pain
Interventions
Non Boston Scientific SCS Trial Therapy, BSC approved SCS Trial Therapy w/ OMG
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
13
States / cities
Phoenix, Arizona • Napa, California • Broomfield, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2020 · Synced Oct 23, 2026, 2:26 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Stanford University Microbiome Bank

NCT07625059
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Microbiome bank
Other
Lead sponsor
Sean Spencer
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 23, 2026, 2:26 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Understanding the Natural History Early in the Course or Presentation of Friedreich Ataxia

NCT06560346
View directory record Official record
Conditions
Friedreich Ataxia, Rare Diseases
Interventions
Geneticlly confirmed disease causing FXN mutatuion, Healthy Control
Other
Lead sponsor
Friedreich's Ataxia Research Alliance
Other
Eligibility
4 Years to 21 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
3
States / cities
Iowa City, Iowa • Philadelphia, Pennsylvania • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 8, 2025 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Not applicable Interventional Results available

Maintenance NeuroStar Transcranial Magnetic Stimulation (TMS) in Patients With Major Depressive Disorder

NCT01415154
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
NeuroStar TMS
Device
Lead sponsor
Neuronetics
Other
Eligibility
18 Years to 70 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
6
States / cities
Chicago, Illinois • Baltimore, Maryland • Lincoln, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2025 · Synced Oct 23, 2026, 2:26 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

SPL Insufficiency Syndrome (SPLIS)/NPHS14: a SPLIS Observational Study and Patient Registry (International)

NCT04885179
View directory record Official record
Conditions
Sphingolipidoses, Enzyme Deficiency
Interventions
no intervention
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2025 · Synced Oct 23, 2026, 2:26 AM EDT
Completed No phase listed Observational

Prospective Phenotyping for Genetic Subtypes of Early-onset Atrial Fibrillation

NCT05190679
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
None/Observational Studies
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
15 Years and older
Enrollment
155 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 23, 2026, 2:26 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Tildrakizumab in the Treatment of Scalp Psoriasis

NCT03897088
View directory record Official record
Conditions
Scalp Psoriasis
Interventions
PART 1: Double-blind Placebo-controlled, PART 2: Double-blind Active Treatment Extension
Drug
Lead sponsor
Sun Pharmaceutical Industries Limited
Industry
Eligibility
18 Years and older
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
19
States / cities
Encinitas, California • Fountain Valley, California • Fremont, California + 15 more
Source: ClinicalTrials.gov public record
Updated May 31, 2023 · Synced Oct 23, 2026, 2:26 AM EDT