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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Self-interest message Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Smartphone App to Improve Physical Activity

NCT03417440
View directory record Official record
Conditions
Sedentary Lifestyle
Interventions
Physical Activity (PA) Tracker App, On Your Feet, Coach Me, Proof Positive
Other
Lead sponsor
University of Southern California
Other
Eligibility
65 Years to 84 Years
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Glendale, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 20, 2022 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Text Message Quit Vaping Intervention for Adolescents

NCT04919590
View directory record Official record
Conditions
Vaping, Cessation, Tobacco
Interventions
This is Quitting, Assessment only control, Waitlist control
Behavioral · Other
Lead sponsor
Truth Initiative
Other
Eligibility
13 Years to 17 Years
Enrollment
1,681 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing a Digital AEP Risk Intervention With Native Women and Communities

NCT06324929
View directory record Official record
Conditions
Alcohol Exposed Pregnancy, Unplanned Pregnancy, Alcohol Use, Unspecified, Contraception Use, Sexual Behavior
Interventions
CARRII Native Rapid Pilot Testing
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
407 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional

SCI-Lynx: A Mobile Platform for Physical Activity Social Support for People With SCI Pilot Study

NCT05764135
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
SCI-Lynx Mobile Application
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Online Expert Peer Facilitation of the EVERYbody Project

NCT05336253
View directory record Official record
Conditions
Body Image, Eating Disorder Symptom, Weight Bias
Interventions
EVERYbody Project-Connect, Self-Help Workbook
Behavioral
Lead sponsor
Western Washington University
Other
Eligibility
18 Years and older
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Bellingham, Washington
Source: ClinicalTrials.gov public record
Updated Dec 17, 2023 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Text Message Quit Vaping Intervention for Young Adults

NCT04251273
View directory record Official record
Conditions
Tobacco Cessation
Interventions
This is Quitting, Assessment only Control
Other
Lead sponsor
Truth Initiative
Other
Eligibility
18 Years to 24 Years
Enrollment
2,588 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced Sep 7, 2026, 5:07 PM EDT
Not listed Not applicable Interventional

Acceptability/Feasibility of COVID-19 Intervention

NCT05019053
View directory record Official record
Conditions
Social Isolation, Emotional Disorder
Interventions
Coping Crew
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional

A Pilot Study to Evaluate an Intervention for Gestational Weight Gain

NCT05143008
View directory record Official record
Conditions
Pregnancy Related, Weight Gain, Maternal
Interventions
SMART Intervention
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
14 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2021 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Phase 2Phase 3 Interventional

Diabetes Technology Study of Real-Time Glucose Alerts in the Team Management of Diabetes

NCT00322478
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Automated informatics driven education and social networking, Blood Glucose Notifications to Remote Caregivers, Frequency of Pattern Management
Behavioral
Lead sponsor
Diabetech
Industry
Eligibility
Not listed
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 2, 2015 · Synced Sep 7, 2026, 5:07 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effectiveness of Video Messaging About Diet, Exercise and Weight Gain in Pregnancy in Regional and National Samples

NCT02490579
View directory record Official record
Conditions
Pregnancy, Weight Gain
Interventions
Responses to Brief Video Messages (Facebook), Response to Brief Video Messages (Clinic), Response to Brief Video Messages (Social Network)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,670 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 22, 2016 · Synced Sep 7, 2026, 5:07 PM EDT
Active, not recruiting Not applicable Interventional

Testing a Brief Reassurance Message Before a Musculoskeletal Clinic Visit

NCT07330492
View directory record Official record
Conditions
Any Non-traumatic Musculoskeletal Condition
Interventions
Nudge intervention
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

2018 Intern Health Study Micro-randomized Trial

NCT03972293
View directory record Official record
Conditions
Depression, Mood, Sleep, Physical Activity
Interventions
Intern Health Study behavioral change mobile notification, Intern Health Study mobile app
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
Not listed
Enrollment
2,134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 12, 2019 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Network-driven COVID-19 Testing and Vaccination of Vulnerable Populations in the Central US

NCT04743908
View directory record Official record
Conditions
Covid19
Interventions
Social Network Strategy + COVID-19 messaging
Other
Lead sponsor
University of Chicago
Other
Eligibility
15 Years and older
Enrollment
1,328 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Sep 7, 2026, 5:07 PM EDT
Active, not recruiting Not applicable Interventional

EPI-MINN: Targeting Cognition and Motivation

NCT05112432
View directory record Official record
Conditions
Psychosis
Interventions
Cognitive and Social Cognitive Training, Personalized Real-Time Intervention for Motivational Enhancement (PRIME) App, Early Psychosis Coordinated Specialty Care
Device · Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 40 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
3
States / cities
Duluth, Minnesota • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Vaccine Messaging, Part 1

NCT04460703
View directory record Official record
Conditions
Vaccination, COVID-19
Interventions
Control message, Baseline message, Personal freedom message, Economic freedom message, Self-interest message, Community interest message, Economic benefit message, Guilt message, Embarrassment message, Anger message, Trust in science message, Not bravery message
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Results available

Using MOST to Optimize an Intervention to Increase COVID-19 Testing for Frontline Essential Workers

NCT05139927
View directory record Official record
Conditions
COVID-19, COVID-19 Testing
Interventions
Motivational interviewing (MI) counseling, Text messages (TMs) and quiz questions (QQs), Peer education, Access to COVID testing
Behavioral
Lead sponsor
New York University
Other
Eligibility
18 Years to 70 Years
Enrollment
438 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Results available

Coordinating Pragmatic Primary Care Population Management for Obesity

NCT03998046
View directory record Official record
Conditions
Obesity, Cardiovascular Risk Factor
Interventions
Outreach Support for Weight Loss Goal Setting and Self-Weighing, Outreach Decision Support to Encourage Linkages to Intensive Community Lifestyle Interventions, Adaptive Tailoring of Information Delivery and Intensity of Primary Care Outreach Support
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 21, 2022 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional

Teens-Connect: Preventive Psycho-education for Transitioning Teens With Diabetes

NCT01783327
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Teens-Connect, Planet D
Behavioral
Lead sponsor
Yale University
Other
Eligibility
11 Years to 14 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
New Haven, Connecticut • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2016 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Help Wanted: Evaluating a Prevention Intervention for People With Sexual Interest in Children

NCT06300957
View directory record Official record
Conditions
Program Evaluation, Child Sexual Abuse, Perpetration of Child Sexual Abuse, Prevention Intervention
Interventions
Help Wanted Prevention Intervention, Waitlist Control
Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older · Male only
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 7, 2026, 5:07 PM EDT
Active, not recruiting Not applicable Interventional

EPI-MINN: Targeting Cognition and Motivation - National

NCT05877716
View directory record Official record
Conditions
Psychosis, Psychosis Nos/Other, Schizophrenia, Schizo Affective Disorder, Schizoaffective Disorder, Prodromal Schizophrenia, Schizophrenia Spectrum and Other Psychotic Disorders, Schizophreniform Disorders, Major Depression With Psychotic Features, Unspecified Psychosis, Bipolar Disorder
Interventions
Cognitive and Social Cognitive Training, Personalized Real-Time Intervention for Motivational Enhancement (PRIME) App, Early Psychosis Coordinated Specialty Care
Device · Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 40 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Adolescent Vaccination Kiosk Project

NCT01622608
View directory record Official record
Conditions
Adolescent Vaccination Status
Interventions
Vaccine Information Kiosk
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
3
States / cities
Centennial, Colorado • Thornton, Colorado • Wheat Ridge, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 23, 2013 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mental Health Pathways in Internet Support Groups

NCT02396472
View directory record Official record
Conditions
Depression, Stress, Anxiety
Interventions
Order by time and topic, Order by information relevance, Order by social relationship, Order by help giving, Order by self-disclosure
Behavioral
Lead sponsor
Carnegie Mellon University
Other
Eligibility
18 Years and older
Enrollment
6,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intervention to Improve Quality of Life in African American Lupus Patients

NCT01837875
View directory record Official record
Conditions
Depression, Systemic Lupus Erythematosus
Interventions
Chronic Disease Self-Management Program (CDSMP), Mail-delivered arthritis kit, Support group, Listserv
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Sep 7, 2026, 5:07 PM EDT
Completed Phase 4 Interventional Results available

BREATHE 2 Clinic Stop-Smoking Treatment Outreach Study

NCT05683821
View directory record Official record
Conditions
Quitting Smoking, Smoking Cessation, Smoking, Cigarette
Interventions
Text message smoking treatment, Nicotine replacement therapy sampling, Wisconsin Tobacco QuitLine Referral, Referral to Primary Care Provider, BREATHE 2 Cessation Study, Additional modalities to learn about and request treatment
Behavioral · Drug · Combination Product
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
12,376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 7, 2026, 5:07 PM EDT