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ClinicalTrials.gov public records Last synced Oct 19, 2026, 6:03 PM EDT

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Showing 1–24 of 2,162 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo pills Clear all
Completed Phase 1 Interventional Results available

Melatonin Use After Primary Total Joint Arthroplasty

NCT04795336
View directory record Official record
Conditions
Osteo Arthritis Knee
Interventions
Melatonin 5 mg, Placebo
Drug · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 95 Years
Enrollment
294 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Stress and Inflammation in Late-Life Depression

NCT02389465
View directory record Official record
Conditions
Depression, Inflammation
Interventions
Escitalopram + Celecoxib, Escitalopram + Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
50 Years to 80 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Oct 19, 2026, 6:03 PM EDT
Terminated Phase 2Phase 3 Interventional

Mechanisms of Improved Wound Healing and Protein Synthesis of Insulin and Metformin

NCT01666665
View directory record Official record
Conditions
Insulin Resistance, Hypermetabolism, Hyperglycemia
Interventions
Metformin, Sugar pill
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
10 Years to 19 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 29, 2019 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Attenuation of Pain in Men and Women

NCT01220414
View directory record Official record
Conditions
Pain
Interventions
Naltrexone, then placebo, Placebo, then Naltrexone
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 19, 2018 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Results available

Exercise and Pharmacotherapy for Anxiety in Cardiac Patients

NCT02516332
View directory record Official record
Conditions
Anxiety, Cardiovascular Disease
Interventions
Lexapro, Placebo, Supervised Aerobic Exercise
Drug · Behavioral
Lead sponsor
Duke University
Other
Eligibility
40 Years and older
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2Phase 3 Interventional

Safety and Efficacy Study of Metaglidasen in Type 2 Diabetes in Patients Suboptimally Controlled on Insulin

NCT00353587
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
MBX-102, Placebo, Actos
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
18
States / cities
Jonesboro, Arkansas • Buena Park, California • Los Angeles, California + 13 more
Source: ClinicalTrials.gov public record
Updated May 1, 2015 · Synced Oct 19, 2026, 6:03 PM EDT
Not listed Phase 4 Interventional

Effects of Spironolactone on Collagen Metabolism in Patients With Pulmonary Arterial Hypertension

NCT01468571
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Spironolactone, Placebo
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2015 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Melatonin on Cardiovascular and Thermoregulatory Responses to Stress

NCT07138443
View directory record Official record
Conditions
Stress, Mental Stress
Interventions
Melatonin 3 MG Oral Tablet, Placebo Oral Tablet
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 19, 2026, 6:03 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effect of Selenium Intervention on Inflammation in Older Adults

NCT01289925
View directory record Official record
Conditions
Inflammation
Interventions
Selenium, Sugar Pill Placebo
Dietary Supplement · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
70 Years to 110 Years
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 9, 2018 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2 Interventional Results available

The Effect of an Antibiotic on the Production of Uremic Toxins by the Gut Microbiome

NCT03452189
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
Vancomycin, Placebo
Drug · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2 Interventional Results available

Phase 2, Randomized, Double-Blind, Placebo-Controlled of the Efficacy and Safety of CF102 in Hepatocellular Carcinoma (HCC)

NCT02128958
View directory record Official record
Conditions
Hepatocellular Carcinoma
Interventions
CF102, Placebo
Drug
Lead sponsor
Can-Fite BioPharma
Industry
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
2
States / cities
Aurora, Colorado • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2 Interventional Results available

Impact of Nilotinib on Safety, Tolerability, Pharmacokinetics and Biomarkers in Parkinson's Disease

NCT02954978
View directory record Official record
Conditions
Parkinson Disease, Parkinsons Disease With Dementia
Interventions
Placebo Oral Capsule, Nilotinib 150mg oral capsule [Tasigna], Nilotinib 300mg oral capsule [Tasigna]
Drug
Lead sponsor
Georgetown University
Other
Eligibility
40 Years to 90 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional

Treatment for Sleep Disturbance in Orthopaedic Trauma Patients

NCT03779243
View directory record Official record
Conditions
Sleep Disturbance, Trauma
Interventions
Melatonin 5mg and Sleep Education, Placebo
Dietary Supplement · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Use of an Herbal Preparation to Prevent and Dissolve Kidney Stones

NCT00381849
View directory record Official record
Conditions
Cystinuria, Nephrolithiasis, Calcium Oxalate
Interventions
Cystone, Sugar Pill (Placebo)
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Results available

Acute Airway Vascular Smooth Muscle Effects of Inhaled Budesonide

NCT01219738
View directory record Official record
Conditions
Asthma
Interventions
Budesonide 360ug, Budesonide 720ug, Budesonide 1440ug, Budesonide720ug 4 times, Placebo
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 16, 2015 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2 Interventional Results available

N-Acetyl Cysteine in Pathologic Skin Picking

NCT01063348
View directory record Official record
Conditions
Pathologic Skin Picking, Neurotic Excoriation, Psychogenic Excoriation, Dermatillomania
Interventions
N-Acetyl Cysteine, Placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 64 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 2 Interventional Results available

A Study of N-Acetyl Cysteine in Children With Autism

NCT00627705
View directory record Official record
Conditions
Autistic Disorder
Interventions
N-Acetyl Cysteine, Placebo - sugar pill
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
3 Years to 12 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Efficacy of Oral Mitoquinone (MitoQ) Supplementation for Improving Physiological in Middle-aged and Older Adults

NCT02597023
View directory record Official record
Conditions
Aging
Interventions
MitoQ, Placebo
Drug
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
60 Years to 79 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 12, 2018 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Phase 3 Interventional Results available

Study of Aripiprazole in the Treatment of Pervasive Developmental Disorders

NCT00870727
View directory record Official record
Conditions
Pervasive Developmental Disorder
Interventions
Aripiprazole oral product, Placebo oral capsule
Drug
Lead sponsor
Indiana University
Other
Eligibility
5 Years to 17 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 2, 2019 · Synced Oct 19, 2026, 6:03 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Impacts of Nicotinamide Riboside on Functional Capacity and Muscle Physiology in Older Veterans

NCT04691986
View directory record Official record
Conditions
Sarcopenia, Nicotinamide Adenine Dinucleotide Concentration, Muscle Quality and NAD+ Content
Interventions
Nicotinamide Riboside, Placebo
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
65 Years to 85 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Evaluation of Rosiglitazone Anti-inflammatory Effect With FDG-PET Imaging

NCT01174056
View directory record Official record
Conditions
Lung Inflammation
Interventions
Zileuton, Pioglitazone placebo, Zileuton placebo, Pioglitazone
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
19 Years to 44 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 23, 2014 · Synced Oct 19, 2026, 6:03 PM EDT
Withdrawn Not applicable Interventional

Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients

NCT01858051
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Oct 19, 2026, 6:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluating Whole Foods Supplementation on Cognition

NCT01672359
View directory record Official record
Conditions
Sub-optimal Cognitive Function, Sub-optimal Immune Function
Interventions
Ginkgo Synergy® and Choline, OPC Synergy® and Catalyn, Placebo
Dietary Supplement
Lead sponsor
University of Miami
Other
Eligibility
60 Years and older
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Oct 19, 2026, 6:03 PM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Lorcaserin in Obesity: Identification of CNS Targets Using fMRI

NCT02400359
View directory record Official record
Conditions
Obesity, Weight Loss
Interventions
Lorcaserin HCl, Placebo
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 19, 2026, 6:03 PM EDT