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Showing 1–24 of 149 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Text Messaging (Intervention) Clear all
Completed Not applicable Interventional Results available

Utilizing Text Messaging to Improve Vehicle Safety Among At-Risk Young Adults

NCT03833713
View directory record Official record
Conditions
Risk Reduction
Interventions
SMS Dialogue, SMS Assessments
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 25 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 8, 2024 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Ecological Momentary Assessment and Text Message Intervention for Stress Management

NCT04907942
View directory record Official record
Conditions
Stress, Psychological, Loneliness, Covid19, Stress
Interventions
EMA + EMA and FACE Stress, EMA Alone
Other
Lead sponsor
Click Therapeutics, Inc.
Industry
Eligibility
22 Years and older
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Digitally Prompted Parenting: A Text Message Parent-Based Alcohol Intervention for Incoming College Students

NCT06861660
View directory record Official record
Conditions
Underage Drinking
Interventions
Digitally Prompted Parenting, Active Control
Behavioral
Lead sponsor
Loyola Marymount University
Other
Eligibility
17 Years to 20 Years
Enrollment
276 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional

Evaluation of a Self-Monitoring Intervention to Reduce Safety Behavior in Social Anxiety

NCT05168020
View directory record Official record
Conditions
Social Anxiety
Interventions
Safety Behavior Fading for Social Anxiety, Unhealthy Behavior Fading
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 65 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

CuidaTXT: a Text Message Dementia-caregiver Intervention for Latinos

NCT04316104
View directory record Official record
Conditions
Caregiver Burnout
Interventions
CuidaTXT
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 6, 2022 · Synced Jul 22, 2026, 8:24 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

iSIPsmarter: A Pilot RCT to Evaluate a Web-based Behavioral Intervention to Reduce Sugary Beverages Among Black Adults

NCT06184737
View directory record Official record
Conditions
Diet Habit, Sugar-Sweetened Beverages
Interventions
iSIPsmarter, Patient Education (PE)
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 110 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Jul 22, 2026, 8:24 PM EDT
Terminated Not applicable Interventional

Text Message Intervention to Improve Cardiac Rehab Participation

NCT03346278
View directory record Official record
Conditions
Myocardial Infarction, Percutaneous Coronary Intervention, Coronary Artery Bypass Surgery, Heart Valve Repair or Replacement, Heart Transplant, Left Ventricular Assist Device, Chronic Stable Angina, Chronic Stable Heart Failure
Interventions
Text Messaging Intervention
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 11, 2018 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Text-based Interventions to Promote COVID-19 Vaccinations

NCT04800965
View directory record Official record
Conditions
Covid19, Vaccines
Interventions
Patient MyChart Scheduling Link, Patient Educational Video, Enhanced Follow through Message
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Westwood, Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2022 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Examining a Text Message Intervention for Smoking Cessation

NCT01166464
View directory record Official record
Conditions
Tobacco Use Disorder, Nicotine Dependence
Interventions
text messaging for smoking cessation, Generic text messages
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 2, 2014 · Synced Jul 22, 2026, 8:24 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Usability Study of a Smoking Cessation Intervention During a Dental Cleaning

NCT04247061
View directory record Official record
Conditions
Smoking, Cessation
Interventions
Educational video, Text-message program
Other
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Alcohol Intervention for First Year College Students

NCT03750838
View directory record Official record
Conditions
Underage Alcohol Use
Interventions
Text Messaging Intervention
Behavioral
Lead sponsor
University of North Texas Health Science Center
Other
Eligibility
18 Years to 19 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

CCTG 595: Text Messaging Intervention to Improve Adherence to PrEP in High-risk MSM

NCT01761643
View directory record Official record
Conditions
Patient Adherence, HIV Seronegativity
Interventions
SoC + iTab
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Male only
Enrollment
398 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
4
States / cities
Long Beach, California • Los Angeles, California • San Diego, California + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2020 · Synced Jul 22, 2026, 8:24 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 Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional

Military Continuity Project

NCT01829620
View directory record Official record
Conditions
Suicidal Ideation Active, Suicidal and Self-injurious Behavior
Interventions
TAU, CCVT+TAU
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
658 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
3
States / cities
Twentynine Palms, California • Fort Bragg, North Carolina • Marine Corps Base Camp Lejeune, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 1, 2020 · Synced Jul 22, 2026, 8:24 PM EDT
Not listed Not applicable Interventional

The Management of Diabetes in Everyday Life Program

NCT02957513
View directory record Official record
Conditions
Diabetes Mellitus, Chronic Disease
Interventions
Text Messaging (TM), Health Coaching (HC), Enhanced Usual Care (EC)
Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
18 Years and older
Enrollment
646 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
19
States / cities
Holly Springs, Mississippi • Bartlett, Tennessee • Covington, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2019 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Results available

Dulce Digital-Me: An Adaptive mHealth Intervention for Underserved Hispanics With Diabetes

NCT03130699
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Dulce Digital, Dulce Digital-Me (Automated Delivery), Dulce Digital-Me (Medical Assistant)
Behavioral
Lead sponsor
Scripps Whittier Diabetes Institute
Other
Eligibility
18 Years and older
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
2
States / cities
Chula Vista, California • La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2025 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Web-based Physical Activity Intervention for Latinas

NCT03491592
View directory record Official record
Conditions
Inactivity
Interventions
Enhanced Physical Activity Intervention, Original Physical Activity Intervention
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Jul 22, 2026, 8:24 PM EDT
Not yet recruiting Not applicable Interventional

Advancing Scalable Alcohol Brief Interventions in the ED: A Trial of Conversational AI With Digital Reinforcements

NCT07661563
View directory record Official record
Conditions
Alcohol Misuse
Interventions
MICA, TRAC
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 22, 2026, 8:24 PM EDT
Recruiting Not applicable Interventional

Nudging Parental Actions for Youth Suicide Prevention

NCT07383714
View directory record Official record
Conditions
Suicide, Suicide Attempt
Interventions
Text-messaging for safety reminders, Text-messaging with safety reminders and risk framing
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
13 Years to 17 Years
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jul 22, 2026, 8:24 PM EDT
Recruiting Not applicable Interventional

Improving Cognition Through Telehealth Aerobic Exercise and Cognitive Training After a First Schizophrenia Episode

NCT05890183
View directory record Official record
Conditions
Schizophrenia, Schizophreniform Disorder, Schizoaffective Disorder
Interventions
Cognitive training, Aerobic Exercise Program, Moderated Online Social Therapy (MOST), Chorus Participatory Text Messaging Program, Healthy Living Group (HLG)
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 1, 2025 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Results available

A Pharmacist Intervention for Monitoring and Treating Hypertension Using Bidirectional Texting

NCT03986931
View directory record Official record
Conditions
Hypertension
Interventions
Experimental: Pharmacist-Bidirectional Texting Group, Active Comparator: Control Group
Other
Lead sponsor
Linnea Polgreen
Other
Eligibility
21 Years to 100 Years
Enrollment
535 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jan 21, 2025 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional

Web and Mobile Smoking Cessation

NCT01952236
View directory record Official record
Conditions
Smoking
Interventions
Web+Mobile, Web Only
Behavioral
Lead sponsor
Oregon Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,266 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 11, 2019 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Steering Together in a New Direction: Reducing the Risk of HIV/STD Among African American Men

NCT02572401
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV), Sexually Transmitted Disease (STD)
Interventions
STAND HIV Risk Reduction Intervention, Text Messaging Intervention
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
391 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2019 · Synced Jul 22, 2026, 8:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Serial SMS Reminders and an Opt-out Mailed FIT Kits to Improve Colorectal Screening Participation: A Single Center RCT

NCT03479645
View directory record Official record
Conditions
Bowel Cancer, Colon Cancer
Interventions
Serial text messages and mailed FIT kit
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
50 Years to 74 Years
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 21, 2019 · Synced Jul 22, 2026, 8:24 PM EDT