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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Healthy Relationships Clear all
Completed No phase listed Observational Accepts healthy volunteers

The Effects of Water Temperature on the Cold Pressor Test

NCT03083626
View directory record Official record
Conditions
Chronic Pain
Interventions
Cold pressor test
Other
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 19, 2017 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Methylphenidate (Ritalin®) on the Neural Basis of Anxiety

NCT02021214
View directory record Official record
Conditions
PTSD
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 27, 2020 · Synced Jul 24, 2026, 8:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Event-Related Potential (ERP) Biomarkers in Subjects With Schizophrenia and Healthy Volunteer Subjects

NCT04025502
View directory record Official record
Conditions
Schizophrenia
Interventions
Event-Related Potentials (ERP) and Electroencephalogram (EEG) testing with the COGNISION® System
Device
Lead sponsor
ERP Biomarker Qualification Consortium
Industry
Eligibility
21 Years to 50 Years
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
4
States / cities
Garden Grove, California • Torrance, California • Marlton, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2021 · Synced Jul 24, 2026, 8:06 AM EDT
Completed No phase listed Observational

Gastroenterology & Work Related Injuries

NCT04216212
View directory record Official record
Conditions
Gastroenterology & Work Related Injuries
Interventions
Not listed
Lead sponsor
Methodist Health System
Other
Eligibility
Not listed
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Jul 24, 2026, 8:06 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

A Comparison of Plasma Concentrations of Hydrocodone and Acetaminophen After Administration of a New and a Marketed Tablet Formulation Under Fasted and Fed Conditions in Healthy Adults

NCT03137017
View directory record Official record
Conditions
Opioid-Related Disorders, Pain, Acute, Pain, Postoperative
Interventions
Norco 5Mg-325Mg Tablet, GRT7014 - Abuse Deterrent Tablet
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of [4-14C] AEF0117 Following a Single Oral Dose in Healthy Male Subjects

NCT05554926
View directory record Official record
Conditions
Marijuana Abuse
Interventions
AEF0117
Drug
Lead sponsor
Aelis Farma
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Jul 24, 2026, 8:06 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Lung and Heart Function Across Decades of Life in Health

NCT07641413
View directory record Official record
Conditions
Pollution Related Respiratory Disorder, Pollution; Exposure, Dyspnea, Cardiopulmonary
Interventions
Healthy control
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
24 Years to 68 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Assess Repeated Doses of INDV-2000 in Healthy Volunteers and in Treatment Seeking Individuals With Opioid Use Disorder

NCT04976855
View directory record Official record
Conditions
Healthy Volunteer, Opioid-use Disorder
Interventions
INDV-2000, Placebo, SUBOXONE® sublingual film
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • DeSoto, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Jul 24, 2026, 8:06 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Healthy Marriage and Responsible Fatherhood Grant Program With Phoenix House of New York

NCT03640546
View directory record Official record
Conditions
Relationship, Family, Substance Use, Parenting
Interventions
Within My Reach/ Within Our Reach
Behavioral
Lead sponsor
Phoenix House Foundation, Inc.
Other
Eligibility
Not listed
Enrollment
3,825 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
3
States / cities
Hauppauge, New York • Long Island City, New York • Ronkonkoma, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Jul 24, 2026, 8:06 AM EDT
Completed No phase listed Observational

Examining How Heart Disease Risk Factors Affect Healthy Aging (The Chicago Healthy Aging Study [CHAS])

NCT00626379
View directory record Official record
Conditions
Coronary Disease, Cardiovascular Diseases
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
65 Years to 84 Years
Enrollment
1,395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Staccato Prochlorperazine Thorough QT/QTc

NCT00543062
View directory record Official record
Conditions
Cardiotoxicity
Interventions
Inhaled placebo, Oral placebo, Inhaled prochlorperazine 5 mg, Inhaled prochlorperazine 10 mg, Oral moxifloxacin
Drug
Lead sponsor
Alexza Pharmaceuticals, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 10, 2019 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rewarding Healthy Behaviors in Pregnancy and Postpartum

NCT05328622
View directory record Official record
Conditions
Pregnancy Related
Interventions
Aqueduct Contingency Management Platform
Behavioral
Lead sponsor
Transcendent International, LLC
Industry
Eligibility
18 Years to 52 Years · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 1, 2024 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

This Study Will Evaluate The Relationship Between Plasma Drug Levels And Receptor Binding In Brain Using PET (Positron Emission Tomography) In Healthy Volunteers

NCT01258751
View directory record Official record
Conditions
Healthy
Interventions
PF-05212377
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
3
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 5, 2011 · Synced Jul 24, 2026, 8:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Healthy Family Project: Tobacco Use and Smoke Exposure in Asian American Communities

NCT07049757
View directory record Official record
Conditions
Tobacco-Related Carcinoma, Smoking Cessation
Interventions
Smoking cessation education, Survey Administration, Telephone-Based Intervention, Urine Specimen Collection, Silicone Wrist Band, Interview, Focus Group
Other · Behavioral · Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
760 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 24, 2026, 8:06 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Neutralizing Interleukin (IL)-6

NCT07493317
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Tocilizumab
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 24, 2026, 8:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

What Makes Exercise Feel More Difficult to Women With and Without Type 2 Diabetes

NCT00785005
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 13, 2022 · Synced Jul 24, 2026, 8:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alcohol-Containing Products' Effect on Breathalyzer Results in Healthy Adults Without Acute Intoxication

NCT04878653
View directory record Official record
Conditions
Alcohol Drinking, Intoxication Alcohol
Interventions
BACtrack S80 Breathalyzer
Device
Lead sponsor
CHRISTUS Health
Other
Eligibility
18 Years to 75 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Corpus Christi, Texas
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Not applicable Interventional Results available

Evaluation of SkillTalk for Autistic Young Adults

NCT06281171
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
SkillTalk for Autistic Young Adults, Flyer Library
Other
Lead sponsor
dfusion Inc
Industry
Eligibility
18 Years to 28 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Cruz, California
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Happy Family, Healthy Kids Program

NCT04183179
View directory record Official record
Conditions
Healthy Diet, Stress, Pediatric Obesity, Intergenerational Relations
Interventions
Happy Family, Healthy Kids Program
Behavioral
Lead sponsor
Michigan State University
Other
Eligibility
3 Years to 5 Years
Enrollment
214 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Thompsonville, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Jul 24, 2026, 8:06 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Dallas 2K: A Natural History Study of Depression

NCT02919280
View directory record Official record
Conditions
Depression, Depression, Bipolar
Interventions
Observational Study
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
10 Years and older
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2036
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jul 24, 2026, 8:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Adversity, Brain and Opioid Use Study

NCT06355778
View directory record Official record
Conditions
Opioid Use Disorder, Healthy
Interventions
Magnetic Resonance Imaging (MRI), Computer Tasks
Other · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 55 Years
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Role of Instructions in Nitrous Oxide Effects and Choice - 10

NCT00000258
View directory record Official record
Conditions
Opioid-Related Disorders, Substance-Related Disorders
Interventions
Nitrous oxide 10% & placebo, Nitrous oxide 20% & placebo, Nitrous oxide 30% & placebo, Nitrous oxide 40% and placebo
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 32 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 1997
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Jul 24, 2026, 8:06 AM EDT
Completed Not applicable Interventional

The Supporting Healthy Marriage Evaluation

NCT02112058
View directory record Official record
Conditions
Marital Relationships, Family Relations, Low-Income Population, Child Behavior, Adolescent Behavior
Interventions
A Family-Strengthening Program for Low-Income Families
Behavioral
Lead sponsor
MDRC
Other
Eligibility
18 Years and older
Enrollment
6,298 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
8
States / cities
Wichita, Kansas • New York, New York • The Bronx, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2014 · Synced Jul 24, 2026, 8:06 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Gender Related Differences in the Acute Effects of Delta-9-Tetrahydrocannabinol in Healthy Humans: Sub-Study II

NCT04704271
View directory record Official record
Conditions
Cannabis
Interventions
Inhaled THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Jul 24, 2026, 8:06 AM EDT