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ClinicalTrials.gov public records Last synced Oct 2, 2026, 1:23 AM EDT

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Showing 1–24 of 1,035 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: placebo (sugar pill) Clear all
Completed Phase 3 Interventional

Premedication With Melatonin in Lumbar Medial Branch Block Procedure

NCT02415309
View directory record Official record
Conditions
Anxiety
Interventions
2 mg Melatonin, 10mg Melatonin, Placebo
Drug · Other
Lead sponsor
United States Naval Medical Center, San Diego
Federal
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
San Diego, California • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated May 14, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Sequential Multiple Ascending Dose Study of the Safety and Pharmacokinetics of Eslicarbazepine Acetate in Adult Healthy Volunteers

NCT01879332
View directory record Official record
Conditions
Epilepsy
Interventions
Placebo, BIA 2-093 3000 mg once daily, BIA 2-093 3600 mg once daily
Drug
Lead sponsor
Bial - Portela C S.A.
Industry
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Miramar, Florida
Source: ClinicalTrials.gov public record
Updated Dec 19, 2014 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 1 Interventional

Investigation of Cycloserine as a Smoking Cessation Treatment

NCT01062932
View directory record Official record
Conditions
Nicotine Addiction
Interventions
Cycloserine, Placebo
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 27, 2012 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional

An Efficacy and Safety Study of XP19986 in Subjects With Symptomatic GERD

NCT00557401
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
XP19986 SR3, 20 mg QD, XP19986 SR3, 40 mg QD, XP19986 SR3, 60 mg QD, XP19986 SR3, 30 mg BID, Placebo
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2021 · Synced Oct 2, 2026, 1:23 AM EDT
Recruiting Not applicable Interventional

Open-label Placebo (COLP) for Pain in Adolescent Idiopathic Scoliosis (AIS) Surgery+Surgical Treatment of Idiopathic Scoliosis

NCT06365892
View directory record Official record
Conditions
Adolescent Idiopathic Scoliosis (AIS)
Interventions
open-label placebo, Treatment as usual
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
10 Years to 18 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional

Effects of Miracle Fruit Pill Application on Food Likings and Energy Intake in Diabetic or Prediabetic Patients

NCT05468411
View directory record Official record
Conditions
Diabetes, PreDiabetes
Interventions
Oral application of miracle fruit pill, Oral application of sugar candy
Other
Lead sponsor
Queens College, The City University of New York
Other
Eligibility
45 Years to 75 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Bayside, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

An Efficacy and Safety Study of Palovarotene to Treat Preosseous Flare-ups in FOP Subjects

NCT02190747
View directory record Official record
Conditions
Fibrodysplasia Ossificans Progressiva
Interventions
Palovarotene, Placebo
Drug
Lead sponsor
Clementia Pharmaceuticals Inc.
Industry
Eligibility
6 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
San Francisco, California • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Oct 2, 2026, 1:23 AM 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 2, 2026, 1:23 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Butyric Acid Supplementation for Gut Improvement After Cardiac Surgery in Kids

NCT06882772
View directory record Official record
Conditions
Congenital Heart Disease (CHD)
Interventions
2 mL SunButyrate-TG, Placebo, 4 mL SunButyrate-TG
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
1 Month to 3 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Idiopathic Intracranial Hypertension Treatment Trial

NCT01003639
View directory record Official record
Conditions
Idiopathic Intracranial Hypertension
Interventions
Acetazolamide, Placebo, Formal weight loss counselling program
Drug · Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 60 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
39
States / cities
Birmingham, Alabama • Los Angeles, California • Waterbury, Connecticut + 31 more
Source: ClinicalTrials.gov public record
Updated Dec 12, 2018 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 4 Interventional Results available

Efficacy of Metronidazole Prophylaxis Against Clostridium Difficile-Associated Diarrhea in High Risk Adult Patients

NCT02200328
View directory record Official record
Conditions
Clostridium Difficile Diarrhea
Interventions
Metronidazole, Placebo
Drug
Lead sponsor
Alison Schneider
Other
Eligibility
55 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Gabapentin in Postherpetic Neuralgia

NCT00636636
View directory record Official record
Conditions
Neuralgia,Postherpetic
Interventions
Gabapentin Extended Release tablets, Placebo
Drug
Lead sponsor
Depomed
Industry
Eligibility
18 Years and older
Enrollment
452 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
36
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Phoenix, Arizona + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2012 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Results available

The Effects of Trazodone on Sleep Apnea Severity

NCT01817907
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Placebo pill, Trazodone
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 24, 2017 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 4 Interventional Results available

Pharmacogenetic Response to Naltrexone For Alcohol Dependence

NCT00831272
View directory record Official record
Conditions
Alcohol Dependence
Interventions
naltrexone, Placebo
Drug
Lead sponsor
David Oslin
Other
Eligibility
18 Years and older
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
4
States / cities
Danville, Pennsylvania • Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 11, 2017 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Results available

Cognitive Enhancement as a Target for Cocaine Pharmacotherapy

NCT01531153
View directory record Official record
Conditions
Addiction
Interventions
Galantamine, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 60 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 26, 2018 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Phase 4 Interventional Results available

A Trial Examining the Efficacy of Escitalopram Oxalate Upon Depressive Symptoms and Fatigue in HIV Seropositive Women

NCT01797380
View directory record Official record
Conditions
Depression, HIV
Interventions
Placebo, Escitalopram
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 27, 2013 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional

Vitamin D3 Supplementation for Heart Failure Patients

NCT01636570
View directory record Official record
Conditions
Heart Failure, Vitamin D Deficiency, Cardiomyopathy, Congestive Heart Failure
Interventions
Placebo Comparator: Sugar Pill, Vitamin D3 (cholecalciferol)
Drug
Lead sponsor
Heidi Moretti, MS, RD
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Apr 26, 2017 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Results available

Aprepitant for Post-operative Nausea

NCT01020903
View directory record Official record
Conditions
Postoperative Nausea
Interventions
Aprepitant, Placebo
Procedure · Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Staten Island, New York
Source: ClinicalTrials.gov public record
Updated Nov 22, 2023 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

S-Adenosyl-L-Methionine (SAMe) for Smoking Abstinence

NCT00722124
View directory record Official record
Conditions
Tobacco Dependence
Interventions
S-Adenosyl-L-Methionine, placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
2
States / cities
Rochester, Minnesota • La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 9, 2011 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 4 Interventional Results available

Prazosin for Post-Concussive Headaches

NCT02965027
View directory record Official record
Conditions
Post-Traumatic Headache
Interventions
Prazosin, Placebo
Drug
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
2
States / cities
Seattle, Washington • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Randomized Controlled Trial of Aspirin vs Placebo in the Treatment of Pre-psychosis

NCT02047539
View directory record Official record
Conditions
Clinical High Risk for Psychosis
Interventions
Aspirin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
19 Years to 35 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2 Interventional Results available

UH3 Varenicline for Cannabis Use Disorder

NCT03980561
View directory record Official record
Conditions
Cannabis Use Disorder
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
2
States / cities
Charleston, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Ampyra for Optic Neuritis in Multiple Sclerosis

NCT01337986
View directory record Official record
Conditions
Multiple Sclerosis, Optic Neuritis
Interventions
Dalfampridine/Placebo, Placebo/Dalfampridine
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 30, 2020 · Synced Oct 2, 2026, 1:23 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study on Intestinal Gas Symptoms to Evaluate the Effects of Gas Defense in Otherwise Healthy Adult

NCT00881322
View directory record Official record
Conditions
Abdominal Pain, Abdominal Cramps, Flatulence
Interventions
BC-130 (Gas Defense), Placebo
Dietary Supplement
Lead sponsor
Miami Research Associates
Network
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 30, 2009 · Synced Oct 2, 2026, 1:23 AM EDT