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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo instructions Clear all
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Impact of Challenging Engagement on Cognition in Older Adults

NCT03962439
View directory record Official record
Conditions
Cognitive Change
Interventions
High-Demand Photography, Moderate-Demand Photography, At-Home Engagement
Behavioral
Lead sponsor
The University of Texas at Dallas
Other
Eligibility
60 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Irving, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Visible Abdominal Distension

NCT06369753
View directory record Official record
Conditions
Irritable Bowel Syndrome, Dyspepsia, Functional Bloating
Interventions
Biofeedback, Placebo
Behavioral
Lead sponsor
Hospital Universitari Vall d'Hebron Research Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Not applicable Interventional

Gamma Sensory Flicker for Parkinson's Disease Patients With Freezing of Gait

NCT06295458
View directory record Official record
Conditions
Gait Disorders, Neurologic, Parkinson Disease
Interventions
David Delight Plus Device, Sham Therapy
Device · Other
Lead sponsor
Emory University
Other
Eligibility
50 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 2 Interventional Results available

Effects of rhLactoferrin on Chronic Inflammation in the Elderly

NCT02968992
View directory record Official record
Conditions
Inflammation, Cognitive Deterioration
Interventions
rhLactoferrin, Placebo
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
70 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 23, 2026, 1:38 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Interactions Between Placebo Effects and Mindful Awareness State

NCT07108101
View directory record Official record
Conditions
Placebo Effect, Mindfulness, Pain, Transcranial Direct Current Stimulation (tDCS)
Interventions
tDCS stimulation (sham), tDCS stimulation (real), Mindful state induction, No minfulness induction
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Hanover, New Hampshire
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

NOURISH: Nourishing Our Understanding of Role Modeling to Improve Support and Health

NCT00628030
View directory record Official record
Conditions
Pediatric Obesity
Interventions
NOURISH, Wellness Group
Behavioral · Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 18, 2015 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 4 Interventional Results available

A Study of Varenicline for Prevention of Relapse to Smoking in Patients With Schizophrenia or Bipolar Disorder

NCT00621777
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Bipolar Disorder, Smoking
Interventions
Varenicline, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
10
States / cities
Birmingham, Alabama • Bloomington, Indiana • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2017 · Synced Sep 23, 2026, 1:38 PM EDT
Recruiting Phase 2 Interventional

Sit Less, Interact and Move More (SLIMM) 2 Study

NCT05173714
View directory record Official record
Conditions
Chronic Kidney Diseases, Obesity
Interventions
SLIMM, Standard Resistance Training, Guided Resistance Training, Placebo, Semaglutide
Behavioral · Drug
Lead sponsor
Srinvasan Beddhu
Other
Eligibility
20 Years and older
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Stanford, California • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Characteristics of Sleep Patterns in Young Adults With and Without Insomnia

NCT00177216
View directory record Official record
Conditions
Sleep Disorders
Interventions
Zolpidem, Escitalopram, Placebo
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
20 Years to 50 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2008
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 29, 2016 · Synced Sep 23, 2026, 1:38 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Multivitamin and Mineral Supplementation and Healthy Aging

NCT07642869
View directory record Official record
Conditions
Healthy Aging, Multivitamin and Mineral Supplementation
Interventions
MVM Core Blend, MVM Gold Blend, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
40 Years to 60 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 2 Interventional Results available

Niclosamide for Mild to Moderate COVID-19

NCT04399356
View directory record Official record
Conditions
COVID-19
Interventions
Niclosamide, Placebo, Telehealth monitoring
Drug · Other
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 11, 2022 · Synced Sep 23, 2026, 1:38 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Clinical Study to Assess the Effects of Prebiotic and Probiotic Supplement

NCT06794619
View directory record Official record
Conditions
Healthy
Interventions
Placebo, Dietary Supplement with actives
Dietary Supplement
Lead sponsor
Olly, PBC
Industry
Eligibility
18 Years to 50 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Withdrawn Phase 4 Interventional

CBD for Pain Reduction and Opioid Use After Ankle and Tibia Fracture ORIF

NCT04768478
View directory record Official record
Conditions
Ankle Fractures, Tibia Fracture
Interventions
CBD, Placebo
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 27, 2022 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 4 Interventional Results available

Human Factors Study to Validate the User Interface of TOBI Podhaler Using Placebo Capsules

NCT03502070
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Placebo, Tobi Podhaler
Drug · Device
Lead sponsor
Mylan Inc.
Industry
Eligibility
6 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
9
States / cities
Miami, Florida • Orlando, Florida • Pensacola, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Safety and Efficacy of Topically Applied TV-45070 (Ointment) in Participants With Primary Osteoarthritis (OA) Affecting a Single Knee

NCT02068599
View directory record Official record
Conditions
Osteoarthritis of the Knee
Interventions
TV-45070, Placebo
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
389 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
42
States / cities
Anaheim, California • Cerritos, California • El Cajon, California + 35 more
Source: ClinicalTrials.gov public record
Updated Nov 8, 2021 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Lung and Breast Cancer Prevention by an Integrated Intervention of Maternal Smoking Cessation and Breastfeeding

NCT05123118
View directory record Official record
Conditions
Smoking, Cigarette, Breastfeeding
Interventions
Integrated intervention of smoking cessation and breastfeeding, Attention placebo control
Behavioral
Lead sponsor
Xiaozhong Wen
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 1 Interventional

Omalizumab for Lupus

NCT01716312
View directory record Official record
Conditions
Systemic Lupus Erthematosus, Sjogren's Syndrome
Interventions
Omalizumab
Drug
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
18 Years to 100 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Sep 23, 2026, 1:38 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effects of Triphala and VSL#3 Probiotic Supplementation on Stool Microbiome Profiles and Inflammation

NCT03907501
View directory record Official record
Conditions
Human Microbiome
Interventions
Synbiotic, Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
65 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Phase 2 Interventional Results available

Metabolic Resuscitation Using Ascorbic Acid, Thiamine, and Glucocorticoids in Sepsis.

NCT03422159
View directory record Official record
Conditions
Sepsis, Severe, Septic Shock
Interventions
Ascorbic Acid, Thiamine, Hydrocortisone, Sodium Chloride 0.9%
Drug
Lead sponsor
Community Medical Center, Toms River, NJ
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Lakewood, New Jersey • Toms River, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 20, 2021 · Synced Sep 23, 2026, 1:38 PM EDT
Terminated Phase 3 Interventional Results available

Treatment of Long CoronaVirus Disease (COVID) (TLC) Feasibility Trial

NCT05946551
View directory record Official record
Conditions
COVID-19
Interventions
Cetirizine, Famotidine, Cetirizine Placebo, Famotidine Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
4
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 16, 2025 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Not applicable Interventional Results available

A Prospective Study Investigating the Use of Relaxation Prior to Medical Procedures.

NCT02690194
View directory record Official record
Conditions
Pain, Anxiety
Interventions
Placebo Group, Buddhify Therapy
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
14 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 20, 2018 · Synced Sep 23, 2026, 1:38 PM EDT
Recruiting Phase 2 Interventional

Treatment of Social and Language Deficits With Leucovorin for Young Children With Autism

NCT04060030
View directory record Official record
Conditions
Autism Spectrum Disorder, Language Disorders
Interventions
Levoleucovorin Calcium, Placebo
Drug · Other
Lead sponsor
Southwest Autism Research & Resource Center
Other
Eligibility
30 Months to 60 Months
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
2
States / cities
Phoenix, Arizona • Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 23, 2026, 1:38 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Influence of Short-Term Antibiotic Therapy on Exercise

NCT05961189
View directory record Official record
Conditions
Gastrointestinal Microbiome, Exercise
Interventions
Azithromycin
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
2
States / cities
Fort Collins, Colorado • New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 23, 2026, 1:38 PM EDT
Recruiting Not applicable Interventional

Transcranial Direct Current Stimulation for Depression

NCT07042217
View directory record Official record
Conditions
Unipolar Depression
Interventions
transcranial direct current stimulation (tDCS) and mindfulness instruction, Sham tDCS and Mindfulness
Device
Lead sponsor
Soterix Medical
Industry
Eligibility
22 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Woodbridge, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 23, 2026, 1:38 PM EDT