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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo Capsules Clear all
Completed Phase 3 Interventional

A Study to Evaluate Safety and Efficacy Following Dosing of Oxycodone/Naltrexone for Treatment of Adults With Pain Following Bunionectomy Surgery

NCT02401750
View directory record Official record
Conditions
Pain
Interventions
Oxycodone Naltrexone (a), Oxycodone Naltrexone (b), Placebo
Drug
Lead sponsor
Elite Laboratories, Inc
Industry
Eligibility
18 Years to 75 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
5
States / cities
Phoenix, Arizona • Pasadena, Maryland • Austin, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2016 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 3 Interventional Results available

A Study of Oral Ixazomib Citrate (MLN9708) Maintenance Therapy in Participants With Multiple Myeloma Following Autologous Stem Cell Transplant

NCT02181413
View directory record Official record
Conditions
Multiple Myeloma, Autologous Stem Cell Transplant
Interventions
Ixazomib Citrate, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
656 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2023
U.S. locations
6
States / cities
Little Rock, Arkansas • Rochester, Minnesota • The Bronx, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

The Efficacy, Safety and Tolerability of Oral LPCN 1144 in Subjects With Nonalcoholic Steatohepatitis

NCT04134091
View directory record Official record
Conditions
Nonalcoholic Steatohepatitis (NASH)
Interventions
LPCN 1144 Formulation A, LPCN 1144 Formulation B, Placebo
Drug
Lead sponsor
Lipocine Inc.
Industry
Eligibility
18 Years to 80 Years · Male only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
19
States / cities
El Cajon, California • Murrieta, California • Rialto, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 13, 2023 · Synced Sep 23, 2026, 2:23 AM EDT
Terminated Phase 3 Interventional Results available

Clinical Trial Evaluating the Efficacy, Safety, and Tolerability of Cariprazine in a Dose-Reduction Paradigm in the Prevention of Relapse in Participants With Schizophrenia

NCT03593213
View directory record Official record
Conditions
Schizophrenia
Interventions
Cariprazine, Placebo
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 64 Years
Enrollment
587 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
42
States / cities
Bentonville, Arkansas • Little Rock, Arkansas • Rogers, Arkansas + 35 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2022 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 3 Interventional Results available

Peanut Allergy Oral Immunotherapy Study of AR101 for Desensitization in Children and Adults (PALISADE)

NCT02635776
View directory record Official record
Conditions
Peanut Allergy
Interventions
AR101 powder provided in capsules & sachets, Placebo powder provided in capsules & sachets
Biological
Lead sponsor
Aimmune Therapeutics, Inc.
Industry
Eligibility
4 Years to 55 Years
Enrollment
555 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
49
States / cities
Tucson, Arizona • Little Rock, Arkansas • Long Beach, California + 39 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2022 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Opaganib, a Sphingosine Kinase-2 (SK2) Inhibitor in COVID-19 Pneumonia

NCT04467840
View directory record Official record
Conditions
COVID-19, Lung Infection
Interventions
Opaganib, Placebo
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 80 Years
Enrollment
475 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Tafamidis in Patients With Transthyretin Cardiomyopathy

NCT01994889
View directory record Official record
Conditions
Transthyretin (TTR) Amyloid Cardiomyopathy
Interventions
Tafamidis, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 90 Years
Enrollment
441 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
50
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 24 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

A Study to Learn About the Study Medicines (Nirmatrelvir Plus Ritonavir) in People Aged 12 Years or Older With COVID-19 and a Compromised Immune System

NCT05438602
View directory record Official record
Conditions
COVID-19
Interventions
Nirmatrelvir, Ritonavir, Placebo for nirmatrelvir, Placebo for ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
25
States / cities
San Francisco, California • Washington D.C., District of Columbia • Doral, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Methylphenidate Treatment of Attention Deficits in Epilepsy

NCT02178995
View directory record Official record
Conditions
Epilepsy, Cognitive Deficits, Attention Deficits
Interventions
Methylphenidate
Drug
Lead sponsor
Kimford Jay Meador
Other
Eligibility
18 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Efficacy and Safety of ORMD-0801 (Oral Insulin) in Patients With Type 2 Diabetes Mellitus

NCT03467932
View directory record Official record
Conditions
T2DM (Type 2 Diabetes Mellitus)
Interventions
Cohort A: ORMD-0801, Placebo oral capsule, Cohort B: ORMD-0801
Drug
Lead sponsor
Oramed, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
373 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Flint, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Modulation of Micro-RNA Pathways by Gemfibrozil in Predementia Alzheimer Disease

NCT02045056
View directory record Official record
Conditions
Preclinical Alzheimer's Disease
Interventions
Gemfibrozil, Placebo
Drug
Lead sponsor
Gregory Jicha, 323-5550
Other
Eligibility
65 Years to 90 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Hormonal Add-Back Therapy in Adolescents Treated With a GnRH Agonist for Endometriosis: A Randomized Trial

NCT00474851
View directory record Official record
Conditions
Endometriosis
Interventions
Norethindrone acetate + estrogens, norethindrone acetate + placebo
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
13 Years to 22 Years · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2015 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Not applicable Interventional

B. Lactis B94 Effects of Gastrointestinal Function

NCT03277157
View directory record Official record
Conditions
Quality of Life
Interventions
B. lactis B94, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
3
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Neuroscience-Informed Treatment Development for Adolescent Alcohol Use

NCT03238300
View directory record Official record
Conditions
Alcohol Drinking, Control
Interventions
N-Acetylcysteine, Placebo Oral Capsule
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
15 Years to 19 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Sep 23, 2026, 2:23 AM EDT
Active, not recruiting Phase 2 Interventional

A Masked, Placebo-controlled Study to Assess Iptacopan in Age-related Macular Degeneration

NCT05230537
View directory record Official record
Conditions
Age-Related Macular Degeneration
Interventions
Iptacopan (LNP023), Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
50 Years to 100 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
22
States / cities
Fullerton, California • Huntington Beach, California • Rancho Cordova, California + 19 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate EDP-235 in Non-hospitalized Adults With COVID-19

NCT05616728
View directory record Official record
Conditions
COVID-19
Interventions
EDP-235, Placebo
Drug
Lead sponsor
Enanta Pharmaceuticals, Inc
Industry
Eligibility
18 Years to 64 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
22
States / cities
Lomita, California • Los Angeles, California • Aventura, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2024 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 4 Interventional

Pilot Study of Atomoxetine To Enhance COgnition In Patients With Schizophrenia

NCT00488163
View directory record Official record
Conditions
Schizophrenia
Interventions
Atomoxetine
Drug
Lead sponsor
Research Foundation for Mental Hygiene, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Brentwood, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 4, 2017 · Synced Sep 23, 2026, 2:23 AM EDT
Terminated Phase 1 Interventional

Dopamine D2/D3 Receptor Upregulation by Varenicline in Methamphetamine Users

NCT03059563
View directory record Official record
Conditions
Dopamine D2/3 Receptor Availability, Cognitive Function, Methamphetamine Abuse
Interventions
Varenicline, Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 60 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Effect of QAW039 in Non-atopic Asthmatic Patients

NCT01836471
View directory record Official record
Conditions
Asthma
Interventions
QAW039, Placebo QAW039, Fluticasone 250 mcg, Fluticasone 100 mcg
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
30
States / cities
Encinitas, California • Huntington Beach, California • Los Angeles, California + 24 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2017 · Synced Sep 23, 2026, 2:23 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin K and Glucose Metabolism in Adults at Risk for Diabetes (Vita-K 'n' Adults Study)

NCT02366481
View directory record Official record
Conditions
Obesity, Insulin Resistance, Insulin Sensitivity, Beta-Cell Dysfunction, Prediabetes
Interventions
Placebo, Low-Dose Vitamin K2 Supplement (menaquinone-7; 90-mcg/d), High-Dose Vitamin K2 Supplement (menaquinone-7; 180-mcg/d)
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Vilazodone in Pediatric Patients With Major Depressive Disorder (VLZ-MD-22)

NCT02372799
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Vilazodone, Placebo, Fluoxetine
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
7 Years to 17 Years
Enrollment
473 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
58
States / cities
Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2019 · Synced Sep 23, 2026, 2:23 AM EDT
Recruiting Phase 3 Interventional

An Open-Label Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) in Participants With Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD)

NCT07234032
View directory record Official record
Conditions
Pulmonary Hypertension, Interstitial Lung Disease
Interventions
Treprostinil Palmitil Inhalation Powder, Placebo
Drug
Lead sponsor
Insmed Incorporated
Industry
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
2
States / cities
Naples, Florida • Bend, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 23, 2026, 2:23 AM EDT
Completed Phase 1 Interventional

A Study of the Safety, PK, and Exploratory Efficacy of SP-624 in Acutely Psychotic Adult Subjects With Schizophrenia

NCT04510298
View directory record Official record
Conditions
Schizophrenia
Interventions
SP-624, Placebo
Drug
Lead sponsor
Sirtsei Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Garden Grove, California • Marlton, New Jersey
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Sep 23, 2026, 2:23 AM EDT
Terminated Phase 2 Interventional Results available

Safety and Efficacy of EDP1815 in the Treatment of Patients Hospitalized With COVID-19 Infection

NCT04488575
View directory record Official record
Conditions
Covid19
Interventions
EDP1815, Placebo
Drug
Lead sponsor
Evelo Biosciences, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
New Brunswick, New Jersey • Newark, New Jersey • Edinburg, Texas
Source: ClinicalTrials.gov public record
Updated Dec 18, 2022 · Synced Sep 23, 2026, 2:23 AM EDT