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ClinicalTrials.gov public records Last synced Oct 22, 2026, 8:45 PM EDT

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Showing 313–336 of 635 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: No Messaging Clear all
Completed Not applicable Interventional Results available

An App to Reduce Cannabis Use Among Emerging Adults

NCT05824754
View directory record Official record
Conditions
Cannabis Use
Interventions
Just-In-Time-Adaptive-Intervention (JITAI)
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 25 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Opioid Counseling Following Orthopaedic Surgery

NCT04138264
View directory record Official record
Conditions
Orthopedic Disorder
Interventions
Preoperative opioid counseling
Other
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
18 Years and older
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 24, 2019 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feeding America's Bravest: Mediterranean Diet-Based Interventions to Change Firefighters' Eating Habits

NCT02941757
View directory record Official record
Conditions
Diet, Mediterranean, Health Behavior, Program Sustainability, Program Effectiveness
Interventions
Mediterranean diet Intervention
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older
Enrollment
486 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 14, 2020 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Sugar-sweetened Beverage Consumption Among Young Adults

NCT03672578
View directory record Official record
Conditions
Intention, Health Knowledge, Attitudes, Practice
Interventions
loss-frame, gain-frame, text-only, icon, attribution, no attribution, No label
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
2,971 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jan 23, 2019 · Synced Oct 22, 2026, 8:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Momentary Coping Prompts and Hair Steroids in College Students

NCT07782398
View directory record Official record
Conditions
Emotional Regulation, Alcohol Drinking in College, Emotional Eating, Aggression
Interventions
Momentary coping prompt, Active control message
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 22 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Not yet recruiting Not applicable Interventional

Digital Outreach for Heart Failure Adherence

NCT07831538
View directory record Official record
Conditions
CHF - Congestive Heart Failure
Interventions
Digital Outreach
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
13,714 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pleasanton, California
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 22, 2026, 8:45 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 13, 2019 · Synced Oct 22, 2026, 8:45 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Self-Monitoring of Carbon Monoxide to Enhance Reproductive Outcomes in Women

NCT02246114
View directory record Official record
Conditions
Pregnancy, Smoking, Smoking Cessation
Interventions
piCO+ Smokerlyzer® monitor, Text messages
Device · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 16, 2017 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Messaging Intervention to Increase Medicare Annual Wellness Visits -- The NUDGE AWV Clinical Trial

NCT06640426
View directory record Official record
Conditions
Annual Wellness Visit, Breast Cancer Screening, Colon Cancer Screening
Interventions
Two Messaging Nudges, Five messaging nudges
Behavioral
Lead sponsor
Laura Feemster
Industry
Eligibility
65 Years and older
Enrollment
29,842 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Phase 4 Interventional Results available

Gabapentin for Pain Control After Osmotic Dilator Insertion and Prior to D&E Procedure: a Randomized Controlled Trial

NCT03080493
View directory record Official record
Conditions
Abortion, Induced, Cervical Preparation, Pain
Interventions
Gabapentin 600mg, Placebo oral capsule, acetaminophen/codeine and ibuprofen
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2020 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Phase 2 Interventional Results available

Interventions Against Insulin Resistance in Pulmonary Arterial Hypertension

NCT03617458
View directory record Official record
Conditions
Pulmonary Artery Hypertension
Interventions
Metformin, Placebo, mHealth Intervention, Usual Care
Drug · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Nashvile, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional

REACH OUT: to Reduce High Blood Pressure in the Emergency Department

NCT02301455
View directory record Official record
Conditions
Hypertension, Stroke
Interventions
Text messaging
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 9, 2018 · Synced Oct 22, 2026, 8:45 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Randomized Controlled Trial Examining Health Care Access Interventions for Taxi Drivers

NCT02508363
View directory record Official record
Conditions
Healthcare Access for Taxi Drivers
Interventions
questionnaires
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years to 85 Years · Male only
Enrollment
756 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Just-In-Time Intervention to Reduce Alcohol-Facilitated Intimate Partner Violence Perpetration

NCT05145868
View directory record Official record
Conditions
Alcohol Drinking, Aggression, Emotion Regulation
Interventions
Alcohol Skills and Emotion Regulation Intervention, Attention Control
Behavioral · Other
Lead sponsor
Georgia State University
Other
Eligibility
18 Years to 30 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Optimizing a Mobile Health Platform for Sleep Promotion and Obesity Prevention in Children

NCT05703347
View directory record Official record
Conditions
Insufficient Sleep, Obesity
Interventions
Fixed sleep goal, Personalized sleep goal, Digital sleep health messaging without virtual study visit, Digital sleep health messaging with virtual study visit, Inactive Parent-Directed Loss-Framed Incentive, Active Parent-Directed Loss-Framed Incentive, Inactive Supportive Feedback, Active Supportive Feedback
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 12 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usability of HPV Vaccine Reminders

NCT03987490
View directory record Official record
Conditions
Human Papilloma Virus (HPV)
Interventions
Text Message, PostCard, Standard of Care, Motivational Interview
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 99 Years
Enrollment
325 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 19, 2020 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Marketing Fall Prevention Classes to Older Adults in Faith-Based Congregations

NCT00542360
View directory record Official record
Conditions
Accidental Falls
Interventions
Marketing program to motivate exercise class participation
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
60 Years and older
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
2
States / cities
Denver, Colorado • Grand Junction, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Communication & Peer Support Effects on Physical Activity in Overweight Postmenopausal Women

NCT01940016
View directory record Official record
Conditions
Healthy, Obesity, Postmenopausal
Interventions
communication intervention, exercise intervention
Behavioral
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
55 Years to 75 Years · Female only
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 30, 2020 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of a Podcast-based Body Image Intervention Among Millennial Women

NCT07113678
View directory record Official record
Conditions
Body Image
Interventions
Body confidence podcast episode and supplementary exercises in a journal, Body confidence podcast episode, Non-body image-related podcast episode
Behavioral
Lead sponsor
University of the West of England
Other
Eligibility
29 Years to 44 Years · Female only
Enrollment
1,351 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional

Healthcare Text Messaging to Improve Diet, Physical Activity and Weight Loss in a Pediatric Lipid Clinic

NCT02228278
View directory record Official record
Conditions
Pediatric Obesity
Interventions
Group A, Group B
Behavioral · Other
Lead sponsor
University of Florida
Other
Eligibility
11 Years to 21 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
3
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Oct 22, 2026, 8:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Whack-a-Mole: Testing an Intervention to Increase Melanoma Identification

NCT04069104
View directory record Official record
Conditions
Diagnoses Disease
Interventions
ABCD Information, UDS information, Standard (clinical) feedback, Motivational feedback
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
1,849 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Oct 25, 2021 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mobile Health for Alcohol Use Disorders in Clinical Practice

NCT04011644
View directory record Official record
Conditions
Alcohol Drinking, Telemedicine
Interventions
A-CHESS self-monitored, A-CHESS peer-supported, A-CHESS clinically-integrated
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 100 Years
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 23, 2025 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Evaluation of Peer-support Coaching to Increase Adherence to Online Self-help for College Mental Health

NCT04573465
View directory record Official record
Conditions
Treatment Adherence
Interventions
Phone Coaching, Text Message Coaching, ACT Guide
Behavioral
Lead sponsor
Utah State University
Other
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Sep 29, 2021 · Synced Oct 22, 2026, 8:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Social Media and Cancer Screening Information

NCT06712901
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Median Ranked Cancer Screening Messaging, Overall Preferred Cancer Screening Messaging, Black American Preferred Cancer Screening Messaging, White American Preferred Cancer Screening Messaging, Control
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
45 Years to 75 Years
Enrollment
2,030 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 22, 2026, 8:45 PM EDT