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ClinicalTrials.gov public records Last synced Oct 18, 2026, 1:33 AM EDT

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Showing 169–192 of 205 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Positive Messaging Clear all
Completed Not applicable Interventional

Exercise Intervention for Cancer Survivors

NCT02348710
View directory record Official record
Conditions
Neoplasms
Interventions
Exercise OE workbook, Diet workbook
Behavioral
Lead sponsor
Duke University
Other
Eligibility
19 Years to 90 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 27, 2017 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Patient Experience Recommender System for Persuasive Communication Tailoring

NCT02200432
View directory record Official record
Conditions
Smoking Cessation
Interventions
PERSPeCT Recommender System
Other
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
972 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 9, 2015 · Synced Oct 18, 2026, 1:33 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A Cross-sectional Partnership to Improve Prevention and Health Equity Among African Americans

NCT05903885
View directory record Official record
Conditions
Colorectal Cancer, Prevention
Interventions
On-site Fecal Immunochemical Test (FIT) Kit Distribution, On-site With Social Media Advertising Fecal Immunochemical Test (FIT) Kit Distribution
Other
Lead sponsor
University of Nebraska
Other
Eligibility
45 Years to 75 Years
Enrollment
1,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
2
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 18, 2026, 1:33 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

DRT Mobile Intervention to Increase Safe Drinking

NCT05098639
View directory record Official record
Conditions
Alcohol; Use, Problem
Interventions
BASICS, Deviance Regulation Theory (DRT)
Behavioral
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years to 26 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional

Text Messages for Liver Transplant Recipients

NCT04995770
View directory record Official record
Conditions
Medication Adherence, Liver Transplant Disorder
Interventions
Praise Text Messages
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
13 Years to 21 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 23, 2021 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional

MI-BP: mHealth to Improve Blood Pressure Control

NCT02955537
View directory record Official record
Conditions
Hypertension
Interventions
MI-BP
Other
Lead sponsor
University of Michigan
Other
Eligibility
25 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
2
States / cities
Ann Arbor, Michigan • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Positive Attitudes on Behavior and Wellness

NCT04441632
View directory record Official record
Conditions
Burnout, Stress, Emotional
Interventions
Positive feedback
Behavioral
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2020 · Synced Oct 18, 2026, 1:33 AM EDT
Not yet recruiting Not applicable Interventional

Adjuvant Endocrine Therapy Adherence Intervention Pilot in Rwanda

NCT07562399
View directory record Official record
Conditions
Medication Adherence, Breast Cancer
Interventions
Educational video, Symptom monitoring card, Text reminders
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Oct 18, 2026, 1:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pilot Study of the YES-CAN! Program to Prevent Youth Nicotine Vaping

NCT07009509
View directory record Official record
Conditions
Nicotine Vaping
Interventions
YES-CAN! program
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
9 Years and older
Enrollment
1,166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional

Text -Based Depression Screening Among Cancer Survivors

NCT06894849
View directory record Official record
Conditions
Cancer, Depression Secondary to Other Disease, Cancer Survivor
Interventions
Text-based depression screening, Usual care (UC)
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 18, 2026, 1:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Examining Valence-based Effects in Self-Monitoring Feedback Messages

NCT07292389
View directory record Official record
Conditions
Obesity & Overweight, Obesity (Disorder)
Interventions
Positive Reinforcement, Positive Reinforcement + Areas for Change
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
127 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 18, 2026, 1:33 AM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Precision Assignment of Intervention Messages to Promote Physical Activity - Precision AIM

NCT04972279
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Digital message (text + image)
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
18 Years to 29 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 10, 2022 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Play With Me Study

NCT04280198
View directory record Official record
Conditions
High Food Reinforcement, Overeating, Obesity, Childhood
Interventions
Triple P Parenting Videos, Activity Boxes
Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
4 Years to 5 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2022 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Online Parental Education Project to Increase Fruit and Vegetable Intake and Active Playtime Among Toddlers

NCT05085041
View directory record Official record
Conditions
Eating Behavior
Interventions
Multi-Component eHealth Intervention, namely Healthy Online Parental Education (HOPE)
Behavioral
Lead sponsor
Texas Tech University
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2022 · Synced Oct 18, 2026, 1:33 AM 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 18, 2022 · Synced Oct 18, 2026, 1:33 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Health and Energy Through Active Living Every Day (HEALED) After Cancer Pilot Intervention for Cancer Survivors

NCT03983083
View directory record Official record
Conditions
Cancer, Quality of Life, Fatigue
Interventions
Physical activity
Behavioral
Lead sponsor
American Cancer Society, Inc.
Other
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 12, 2019 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Results available

Promoting Resilience and Lowering Risk in Early Childhood

NCT05479734
View directory record Official record
Conditions
Child Abuse, Child Neglect, Parenting, Child Development
Interventions
mHealth Intervention
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
0 Years to 99 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Results available

Positive Health Check Evaluation Trial

NCT03292913
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV) Positive
Interventions
Positive Health Check, Standard of Care
Behavioral
Lead sponsor
RTI International
Other
Eligibility
18 Years and older
Enrollment
799 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
4
States / cities
Tampa, Florida • Atlanta, Georgia • New Orleans, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Oct 18, 2026, 1:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Comparing Mobile Health Strategies to Improve Pre-exposure Prophylaxis Use (PrEP) for HIV Prevention

NCT04855773
View directory record Official record
Conditions
HIV Infections, Sexually Transmitted Diseases
Interventions
PrEPmate, Dot Diary
Other · Device
Lead sponsor
Public Health Foundation Enterprises, Inc.
Other
Eligibility
15 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
San Francisco, California • Washington D.C., District of Columbia • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Sep 28, 2022 · Synced Oct 18, 2026, 1:33 AM EDT
Not yet recruiting Not applicable Interventional

Developing Resiliency and Exercise Using AI-based Messaging

NCT07225283
View directory record Official record
Conditions
Diabetes Mellitus Type 2
Interventions
DREAM
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Writing Activities and Emotions

NCT04539756
View directory record Official record
Conditions
Healthy
Interventions
positive psychological intervention, Active control condition
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional

Optimizing Resilience and Coping in HIV Via Internet Delivery

NCT01997008
View directory record Official record
Conditions
HIV Disease, Depression, Affect, Psychological Stress
Interventions
Intervention
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 1, 2020 · Synced Oct 18, 2026, 1:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Meaningful Use of Technology to Improve Health Care Delivery

NCT01641380
View directory record Official record
Conditions
Contraceptive Behavior
Interventions
Text Messaging Intervention
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
13 Years to 21 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 2, 2021 · Synced Oct 18, 2026, 1:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neural Mechanisms of Interpersonal Expectations on Negative Affect

NCT06980090
View directory record Official record
Conditions
Negative Affectivity, Non-invasive Brain Stimulation, Placebo Effect, Expectations
Interventions
Session A: Positive Placebo + Active tTIS, Session B: Positive Placebo + Sham tTIS, Session C: Negative Placebo + Active tTIS, Session D: Negative Placebo + Sham tTIS, Session E: On-Placebo + Sham tTIS, Session F: Off-Placebo + Sham tTIS
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
18 Years to 55 Years
Enrollment
196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Hanover, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 18, 2026, 1:33 AM EDT