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ClinicalTrials.gov public records Last synced Oct 6, 2026, 10:35 AM EDT

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Showing 73–96 of 896 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo oral pills Clear all
Completed Phase 2 Interventional

VA111913 Dysmenorrhoea Efficacy and Safety Proof of Concept

NCT00963053
View directory record Official record
Conditions
Primary Dysmenorrhea
Interventions
VA111913 TS and placebo
Drug
Lead sponsor
Vantia Ltd
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
3
States / cities
Peoria, Arizona • Austin, Texas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 22, 2014 · Synced Oct 6, 2026, 10:35 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Phase I Study to Evaluate the Safety and Pharmacokinetics of Oral Doses of Anvylic-3288 in Healthy Subjects

NCT01851603
View directory record Official record
Conditions
Schizophrenia
Interventions
AVL-3288, Placebo
Device · Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 30, 2016 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 3 Interventional Results available

Estrogen and Fear in PTSD

NCT04192266
View directory record Official record
Conditions
PTSD
Interventions
Estradiol, Placebo oral tablet, Prolonged Exposure (PE) therapy
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 9, 2026 · Synced Oct 6, 2026, 10:35 AM EDT
Terminated Phase 4 Interventional Results available

The Effect of Tamsulosin on Postoperative Urinary Retention

NCT04682366
View directory record Official record
Conditions
Urinary Retention
Interventions
Tamsulosin, Placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years to 99 Years · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 2 Interventional Results available

Varenicline vs Placebo for the Treatment of Methamphetamine Dependence

NCT01011829
View directory record Official record
Conditions
Methamphetamine Dependence, Substance Abuse, Methamphetamine Abuse
Interventions
Varenicline, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 14, 2013 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 2 Interventional

Effects of Eltoprazine on Cognitive Impairment Associated With Schizophrenia (CIAS) in Adults

NCT01266174
View directory record Official record
Conditions
Cognitive Impairment, Schizophrenia
Interventions
Eltoprazine, Placebo
Drug
Lead sponsor
Amarantus BioScience Holdings, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
6
States / cities
Los Angeles, California • Chicago, Illinois • Catonsville, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 2 Interventional

Phase II Trial of Silymarin for Patients With Chronic Hepatitis C Who Have Failed Conventional Antiviral Treatment

NCT00680342
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Silymarin, Placebo
Drug · Other
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
5
States / cities
Boston, Massachusetts • Chapel Hill, North Carolina • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2013 · Synced Oct 6, 2026, 10:35 AM EDT
Recruiting Phase 2 Interventional

Pimavanserin for Insomnia in Veterans With PTSD

NCT05441280
View directory record Official record
Conditions
Post-traumatic Stress Disorder, Insomnia
Interventions
pimavanserin, Placebo
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 64 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Glycine and Oral D-Cycloserine in Alcoholic Patients and Healthy Subjects

NCT00635102
View directory record Official record
Conditions
Alcohol Dependence
Interventions
D-Cycloserine PO and Glycine IV, Placebo D-Cycloserine PO and placebo Glycine IV, Placebo D-Cycloserine PO and Glycine IV, D-Cycloserine PO and placebo Glycine IV
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 70 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2008
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 16, 2016 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 1 Interventional

Clinical Trial of Acamprosate for Tinnitus

NCT00596531
View directory record Official record
Conditions
Tinnitus
Interventions
Acamprosate, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 75 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 8, 2016 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Single Agent Armodafinil for Patient-Reported Fatigue Following Radiation Therapy for Head and Neck Cancer

NCT01330446
View directory record Official record
Conditions
Head And Neck Cancer, Fatigue
Interventions
Armodafinil, Placebo, Questionnaires
Drug · Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 1Phase 2 Interventional Results available

The Discriminative Effects of Tramadol in Humans

NCT00499746
View directory record Official record
Conditions
Opioid Abuse, Opioid Addiction, Stimulant Abuse, Stimulant Addiction
Interventions
tramadol, placebo, Hydromorphone, Methylphenidate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Months to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Oct 6, 2026, 10:35 AM EDT
Not listed Phase 4 Interventional

EoE RCT Fluticasone and Omeprazole vs Fluticasone Alone

NCT03781596
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Retrospective evaluation of endoscopy prior to study drug, Symptom Survey, Medication Compliance Phone Call, Endoscopy while on study drug, Fluticasone, Omeprazole, Placebo oral capsule
Diagnostic Test · Other · Drug
Lead sponsor
Claire Daniels
Federal
Eligibility
6 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 20, 2018 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 2 Interventional Results available

Cabergoline for Lactation Inhibition After Early Second-Trimester Abortion or Pregnancy Loss

NCT06029673
View directory record Official record
Conditions
Lactation Suppressed
Interventions
Cabergoline 1 MG, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 4 Interventional Results available

Evaluation of Cilostazol in Combination With L-Carnitine

NCT00822172
View directory record Official record
Conditions
Peripheral Vascular Disease, Intermittent Claudication, Peripheral Arterial Disease
Interventions
Levocarnitine tartrate, cilostazol
Dietary Supplement · Drug
Lead sponsor
Colorado Prevention Center
Other
Eligibility
40 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
24
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Palo Alto, California + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2019 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy Study of Oral XIGO Tablets to Treat The Common Cold

NCT01092039
View directory record Official record
Conditions
Common Cold
Interventions
lactoferrin, L-Glutamine and beta-glucans, Placebo Comparator
Dietary Supplement
Lead sponsor
Xigo Health LLC
Industry
Eligibility
18 Years to 50 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Fall River, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2012 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 3 Interventional Results available

Low Dose Oral Methotrexate in Pediatric Crohn's Disease Patients Initiating Anti-Tumor Necrosis Factor (Anti-TNF) Therapy

NCT02772965
View directory record Official record
Conditions
Pediatric Crohn's Disease
Interventions
Methotrexate, Sugar pill (placebo)
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
Up to 20 Years
Enrollment
306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
32
States / cities
Birmingham, Alabama • Alto, California • New Haven, Connecticut + 27 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Oct 6, 2026, 10:35 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Etonogestrel (ENG) Implant Insertion for Emergency Contraception With Oral Levonorgestrel (LNG) vs Placebo

NCT06162611
View directory record Official record
Conditions
Emergency Contraception
Interventions
Etonogestrel implant with Oral Levonorgestrel emergency contraception 1.5mg, Etonogestrel implant with oral placebo
Drug · Device
Lead sponsor
Lori Gawron
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
790 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Not applicable Interventional Results available

Cholecalciferol (Vitamin D3) Therapy in Chronic Kidney Disease (CKD) Subjects

NCT00427037
View directory record Official record
Conditions
Chronic Kidney Disease, Vitamin D Deficiency
Interventions
Cholecalciferol, Placebo
Drug
Lead sponsor
Atlanta VA Medical Center
Federal
Eligibility
18 Years to 85 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 22, 2015 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 1 Interventional

Rivastigmine as a Treatment for Methamphetamine Dependence

NCT01073319
View directory record Official record
Conditions
Methamphetamine Dependence, Substance Abuse, Methamphetamine Abuse
Interventions
Placebo, Rivastigmine
Other · Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
17 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 6, 2026, 10:35 AM EDT
Terminated Phase 2 Interventional Results available

A Study of ABI-H2158-containing Regimens in Participants With Chronic Hepatitis B Virus Infection

NCT04398134
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
ABI-H2158, Placebo, Entecavir (ETV)
Drug
Lead sponsor
Assembly Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
13
States / cities
Los Angeles, California • Pasadena, California • Redwood City, California + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Dose-dependent Anti-inflammatory Effects of Vitamin D in a Human Gingivitis Model

NCT00779909
View directory record Official record
Conditions
Gingivitis
Interventions
vitamin D3, Placebo
Drug · Other
Lead sponsor
Boston University
Other
Eligibility
18 Years to 64 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 2, 2017 · Synced Oct 6, 2026, 10:35 AM EDT
Recruiting Phase 2 Interventional

Colchicine to Reduce Your SympToms And Lower Levels of Inflammation, Zeroing in on Effective CPPD Disease Treatment

NCT06855433
View directory record Official record
Conditions
CPPD - Calcium Pyrophosphate Deposition Disease
Interventions
Colchicine Pill, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
40 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
5
States / cities
Birmingham, Alabama • Los Angeles, California • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 6, 2026, 10:35 AM EDT
Completed Phase 2 Interventional Results available

Sorafenib Therapy Prior to Radiofrequency Ablation for Intermediate Sized Hepatocellular Cancer

NCT00813293
View directory record Official record
Conditions
Hepatocellular Cancer
Interventions
Sorafenib, radiofrequency ablation
Drug · Procedure
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 13, 2023 · Synced Oct 6, 2026, 10:35 AM EDT