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Showing 25–43 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: SMS-based reminders Clear all
Completed Not applicable Interventional Results available

Using Technology to Reduce Youth Substance Use

NCT04446910
View directory record Official record
Conditions
Drug Use
Interventions
SMS Text Messaging Plus, SMS Text Messaging
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Results available

Technology Enhanced Community Health Nursing (TECH-N) Study

NCT01640379
View directory record Official record
Conditions
Pelvic Inflammatory Disease (PID)
Interventions
Technology Enhanced Community Health Nursing
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
13 Years to 25 Years · Female only
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 31, 2020 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Managing AsThma AnD Obesity Related Symptoms (MATADORS) Feasibility Study

NCT05742646
View directory record Official record
Conditions
Asthma in Children, Obesity, Obesity, Adolescent, Obesity, Childhood
Interventions
MATADORS, MATADORS Control
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
10 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Sep 10, 2026, 9:48 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

EQQUAL-NM for the Promotion of Smoking Cessation in Sexual and Gender Minority Young Adults in New Mexico

NCT06386432
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Smartphone App-delivered Smoking Cessation Intervention, Health Promotion and Education, Biospecimen Collection, Questionnaire Administration
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional

CommunityRx-Cardiovascular Disease

NCT06264726
View directory record Official record
Conditions
Cardiovascular Diseases, Self Efficacy
Interventions
HealtheRx
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
2 Years and older
Enrollment
308 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Rocky Mount, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Phase 4 Interventional Results available

Mobile Health Technology to Enhance Abstinence in Smokers With Schizophrenia

NCT02420015
View directory record Official record
Conditions
Schizophrenia, Cigarette Smoking
Interventions
Nicotine replacement therapy, Bupropion, cognitive-behavioral smoking cessation counseling, Mobile Contingency Management, Stay Quit Coach, SMS text messaging
Drug · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 70 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced Sep 10, 2026, 9:48 PM EDT
Recruiting Not applicable Interventional

Efficacy of mHealth + e-Navigator Stepped Care Intervention for ART Adherence Among Latino Men With HIV

NCT06375135
View directory record Official record
Conditions
ART Adherence
Interventions
TXTXT, e-Navigation, Ecological Momentary Assessment (EMA) supported e-Navigation.
Behavioral
Lead sponsor
Florida International University
Other
Eligibility
18 Years and older · Male only
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Not yet recruiting Not applicable Interventional

Colorectal Cancer Screening in the Homeless

NCT07220018
View directory record Official record
Conditions
Colorectal Cancer
Interventions
mHealth for Colorectal cancer screening in Homeless Persons, Control SMS Messages
Behavioral · Other
Lead sponsor
George Washington University
Other
Eligibility
45 Years to 75 Years
Enrollment
588 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Results available

Regimen Education and Messaging in Diabetes (REMinD)

NCT03185741
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Medication Adherence
Interventions
UMS Strategy, SMS Text Messaging
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
21 Years and older
Enrollment
767 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Chicago, Illinois • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fitbit One and Text Messaging Prompts to Promote Physical Activity in Overweight/Obese Adults

NCT02188875
View directory record Official record
Conditions
Health Behavior, Obesity
Interventions
SMS Text Messages & Fitbit One, Fitbit One Only
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 69 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing Seat Belt Wearing and Decreasing Handheld Phone Use While Driving

NCT05469477
View directory record Official record
Conditions
Distracted Driving, Impaired Driving, Driving Behaviors
Interventions
Persuasive education, WOOP (aka, mental contrasting with implementation intentions., Wish, Outcome, Obstacle, Plan), Customized Habit Tips, Raffle Financial Incentive, Shared Pot Financial Incentive, Weekly SMS Support text, Weekly SMS Encouragement
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Phase 2 Interventional

Implementation Intentions for Weight Loss and Dietary Change in College Students With Overweight and Obesity

NCT04105309
View directory record Official record
Conditions
Obesity
Interventions
Implementation Intentions, Fluency Training, Text Messages, Goal Intentions
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 29, 2019 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Connecting Families to Overcome Ovarian Cancer

NCT04927013
View directory record Official record
Conditions
Ovarian Cancer
Interventions
Message-based Outreach Intervention for Survivors, Standard Outreach for Survivors, Message-based Outreach Intervention for Close Relatives, Standard Outreach for Close Relatives
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
2,331 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional

Study of Cell Phone SMS to Improve Adherence to ART in HIV Positive Young Women

NCT02301507
View directory record Official record
Conditions
HIV Infection
Interventions
cell phone SMS text messaging
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2017 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

We Walk Plus Study for Older Adults With Intellectual Disabilities

NCT04573530
View directory record Official record
Conditions
Intellectual Disability
Interventions
We Walk Plus Intervention
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
35 Years to 60 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
2
States / cities
Chicago, Illinois • New Lenox, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

eTest: Real-time, Remote Monitoring System for Home-based HIV Testing Among High-risk Men Who Have Sex With Men

NCT03654690
View directory record Official record
Conditions
HIV Infections
Interventions
HIV self-test, Counseling
Diagnostic Test · Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older · Male only
Enrollment
811 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 10, 2026, 9:48 PM EDT
Terminated Not applicable Interventional Results available

PACESETTER: Program to Avoid Cerebrovascular Events Through Systematic Electronic Tracking and Tailoring of an Eminent Risk-factor

NCT03401489
View directory record Official record
Conditions
Blood Pressure, Hypertension, Mhealth
Interventions
PACESETTER
Device
Lead sponsor
Northern California Institute of Research and Education
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
4
States / cities
San Francisco, California • Charleston, South Carolina • Columbia, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 10, 2026, 9:48 PM EDT
Not yet recruiting Not applicable Interventional

Digital Coach to Support Exposure Therapy Homework for Anxious Youth

NCT07666672
View directory record Official record
Conditions
Anxiety Disorders, OCD
Interventions
BraveBot, Self-Guided Exposure Therapy Homework
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 22 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Belmont, Massachusetts • Boston, Massachusetts • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 10, 2026, 9:48 PM EDT
Completed Not applicable Interventional

Efficacy Study of Interactive Web Application for Problem Solving in Diabetes Management

NCT02021591
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Mobile Diabetes Detective (MoDD)
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 10, 2026, 9:48 PM EDT