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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Positive Attitude Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

PET Imaging of the Dopaminergic and Serotonergic Systems in Treated HIV Positive Subjects

NCT03581305
View directory record Official record
Conditions
Depression, HIV Infections, HIV-Associated Cognitive Motor Complex
Interventions
18F-FDOPA, 11C-DASB
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 3 Interventional Results available

Induction Therapy Study in Live Donor Kidney Transplant Recipients With a Positive Crossmatch

NCT00275509
View directory record Official record
Conditions
Kidney Failure, Chronic
Interventions
Thymoglobulin, Daclizumab, Plasmapheresis, Mycophenolate mofetil, Tacrolimus, Dexamethasone, Prednisone, Cytogam
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Online Positive Emotion Skills Intervention for Symptoms of Depression

NCT01964820
View directory record Official record
Conditions
Depression, Psychological Stress, Affect
Interventions
Positive Affect Skills Training
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 2, 2018 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Multimedia Program to Promote Positive Bus Behavior

NCT02330835
View directory record Official record
Conditions
Student Behavior
Interventions
In the Drivers Seat, School bus driver training videos
Behavioral
Lead sponsor
Oregon Center for Applied Science, Inc.
Industry
Eligibility
5 Years to 65 Years
Enrollment
710 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 4, 2015 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Twin Hearts Meditation on Mood, Cognitive Functioning, and EEG Dynamics

NCT07005830
View directory record Official record
Conditions
Positive Mood States, Negative Mood States, Cognitive Processing Speed, Cognitive Flexibility
Interventions
Twin Hearts Meditation
Behavioral
Lead sponsor
NeuroMeditation Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Jun 10, 2026, 9:19 PM EDT
Not listed Not applicable Interventional

Developing a Positive Psychology Intervention to Promote Health Behaviors in Metabolic Syndrome: RCT

NCT04039165
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
PP-MI Intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 100 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Revere, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2022 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Results available

Researching Emotions And Cardiac Health (REACH): Phase II

NCT02938052
View directory record Official record
Conditions
Congestive Heart Failure, Emotions, Patient Compliance
Interventions
PP-based health behavior intervention
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 31, 2021 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Results available

Stroke and CPAP Outcome Study 2

NCT02809430
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Stroke, Patient Adherence
Interventions
Continuous Positive Airway Pressure
Device
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Promoting the Use of CPAP Therapy Among OSA Patients

NCT04372329
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
CPAP4HealthySleep system
Behavioral
Lead sponsor
Sarah Alismail
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Claremont, California
Source: ClinicalTrials.gov public record
Updated Aug 17, 2022 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Results available

Version 2 of the Smoking Cessation Smartphone App "Smiling Instead of Smoking" (SiS)

NCT03951766
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco
Interventions
Smiling Instead of Smoking (SiS) App Version 2
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 25, 2022 · Synced Jun 10, 2026, 9:19 PM EDT
Active, not recruiting Phase 1 Interventional

Early Phase Clinical Trial About Therapeutic Biological Product Mix for Treating CEA Positive Rectal Cancer

NCT02403505
View directory record Official record
Conditions
Rectal Cancer
Interventions
CEA protein antigen plus BCG Vaccine Mix for percutaneous use
Biological
Lead sponsor
Han Xu, M.D., Ph.D., FAPCR, Sponsor-Investigator, IRB Chair
Industry
Eligibility
24 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Feasibility of a Stigma Reduction Intervention for Human Immunodeficiency Virus (HIV)-Infected Women

NCT01385241
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV), Self-efficacy, Self-esteem
Interventions
Ipod video
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Henderson, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 21, 2014 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Health Improvement for Baltimore Youth

NCT02624193
View directory record Official record
Conditions
HIV, Adolescent Development, Adolescent Behavior, Medication Adherence
Interventions
MBSR Program, HT Program
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
13 Years to 24 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 30, 2018 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 1 Interventional

Telephone-delivered Behavioral Interventions to Reduce Risky Sexual Behavior in HIV-positive Late Middle-age and Older Adults

NCT01499706
View directory record Official record
Conditions
Unsafe Sex
Interventions
1-session of telephone-administered motivational interviewing, 4-session telephone-administered motivational interviewing
Behavioral
Lead sponsor
Ohio University College of Osteopathic Medicine
Other
Eligibility
45 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 25, 2011 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Integrated Smart Speaker Promoting Positive Parenting Among Caregivers of Youth With Challenging Behaviors

NCT05535387
View directory record Official record
Conditions
Oppositional Defiant Disorder, Conduct Disorder
Interventions
FamilyNet smart speaker/mobile application
Behavioral
Lead sponsor
Oregon Research Behavioral Intervention Strategies, Inc.
Industry
Eligibility
10 Years to 80 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Springfield, Oregon
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Jun 10, 2026, 9:19 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Floatation Experience in Nurses and Physicians

NCT05977894
View directory record Official record
Conditions
Burnout, Professional, Negative Affect, Positive Affect, Wellbeing, Burnout, Psychological
Interventions
Reduced Environmental Stimulation Therapy
Other
Lead sponsor
Mercy Health Ohio
Other
Eligibility
21 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Youngstown, Ohio
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Portable Monitoring for Diagnosis and Management of Sleep Apnea

NCT00642486
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Portable (Embla Embletta X30 system and Respironic REMStar Auto M series with CFlex), Standard polysomnography (PSG)
Other
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years and older
Enrollment
373 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Positive Feedback vs. No-Feedback Games for Behavioral Change

NCT06025838
View directory record Official record
Conditions
Major Depressive Disorder, Low Mood
Interventions
positive feedback
Behavioral
Lead sponsor
Bard College
Other
Eligibility
18 Years to 34 Years
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Annandale-on-Hudson, New York
Source: ClinicalTrials.gov public record
Updated Aug 13, 2025 · Synced Jun 10, 2026, 9:19 PM EDT
Not listed Not applicable Interventional

HIV Medication Adherence in Underserved Populations

NCT02392884
View directory record Official record
Conditions
Human Immunodeficiency Virus, Acquired Immunodeficiency Syndrome
Interventions
Cognitive Rehabilitation
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of 3T, a Sex-Positive HIV/STI Mobile App Intervention for Young Black Men Ages 14-19 Attracted to Men

NCT04135443
View directory record Official record
Conditions
HIV/AIDS and Infections, Sexual Behavior, Health Knowledge, Attitudes, Practice
Interventions
3T Tune in! Turn on! Turn up!, General Health Materials Website
Behavioral
Lead sponsor
ETR Associates
Other
Eligibility
14 Years to 19 Years · Male only
Enrollment
178 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Scotts Valley, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Jun 10, 2026, 9:19 PM EDT
Terminated Phase 2 Interventional

Robotic Surgery for Oropharyngeal Squamous Cell Carcinoma

NCT02225496
View directory record Official record
Conditions
Oropharyngeal Cancer
Interventions
Transoral Robotic Surgery (TORS), Modified Barium Swallow (MBS), Questionnaires
Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2017 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Not applicable Interventional

Caregiver Implementation Strategies Field Pre-Test

NCT06770036
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder Symptoms
Interventions
Implementation Resource Package for Caregivers
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
4 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Development of Positive Psychotherapy for Smoking Cessation

NCT01451814
View directory record Official record
Conditions
Smoking
Interventions
Positive Psychotherapy for smoking cessation, Nicotine polacrilex, Relaxation training, Behavioral smoking cessation treatment
Behavioral · Drug
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Jun 10, 2026, 9:19 PM EDT
Completed Phase 1 Interventional

Text Messaging to Increase Activity in Midlife

NCT04849052
View directory record Official record
Conditions
Middle Aged
Interventions
MASTERY, Attentional Control
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years to 64 Years
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Jun 10, 2026, 9:19 PM EDT