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Showing 1–24 of 161 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Smartphone Text Messaging Clear all
Recruiting Not applicable Interventional

Sun Exposure and Activities After Skin Cancer: Optimization of mHealth Interventions

NCT07556380
View directory record Official record
Conditions
Melanoma (Skin Cancer)
Interventions
UV Real-Time Alerts, Track Your Sun Protection, Current Conditions, Health Coaching, Action Planning, Core Components
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Chicago, Illinois • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Multi-Component Breath Alcohol Intervention Phase 3

NCT06994962
View directory record Official record
Conditions
Alcohol Use, Alcohol Drinking, Drinking Behavior
Interventions
Alcohol-related mobile health technologies, Motivational interview and psychoeducation on blood/breath alcohol concentration, Lower tech facilitation, Higher tech facilitation, Alcohol Education, Alcohol Education Technology
Device · Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
18 Years to 25 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional

Reducing Skin Cancer Risk in Childhood Cancer Survivors

NCT02046811
View directory record Official record
Conditions
Skin Neoplasms
Interventions
Patient activation and education (PAE), PAE plus physician activation (PAE + MD), PAE physician activation, plus teledermoscopy (PAE +MD +TD)
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
30 Years to 65 Years
Enrollment
726 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Healthy Brain Development: Wellness for 2 Study

NCT05052281
View directory record Official record
Conditions
Prenatal Stress
Interventions
Mothers and Babies (MB) Course, Just in Time Intervention (JITI) Content, Biostamp nPoint Device
Behavioral · Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 18, 2025 · Synced Sep 8, 2026, 4:17 AM EDT
Withdrawn Not applicable Interventional

WellStart Reboot Study

NCT03731533
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
WellStart
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 15, 2020 · Synced Sep 8, 2026, 4:17 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Behavioral Application for Improving Smoking Cessation Among Smokers

NCT07493252
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
Smartphone app-based Intervention (Actify! A app), Smartphone app-based Intervention (Actify! B app), Health Promotion and Education, Survey Administration
Behavioral · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,812 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Smartphone Intervention for Relational and Mental Well Being

NCT04629755
View directory record Official record
Conditions
Depression, Loneliness, Relation, Interpersonal, Covid19
Interventions
Intervention
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
1,765 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 18, 2020 · Synced Sep 8, 2026, 4:17 AM EDT
Active, not recruiting Not applicable Interventional

Leverage Noninvasive Transcutaneous Vagus Nerve Stimulation to Reduce Suicidal Behaviors in Vulnerable Adolescents

NCT05602779
View directory record Official record
Conditions
Self Harm, Suicidal Ideation
Interventions
tVNS Program, Phone App Program, tVNS and Phone App Program, Sham tNVS and Control App
Device · Other · Combination Product
Lead sponsor
University of Notre Dame
Other
Eligibility
13 Years to 17 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
South Bend, Indiana • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
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 8, 2026, 4:17 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Libre Del Cigarrillo: Development of an mHealth Smoking Cessation App to Extend Reach of a Validated Smoking Cessation Intervention for Spanish-speaking Smokers

NCT07754448
View directory record Official record
Conditions
Smoking Cessation
Interventions
Libre del Cigarrillo Smartphone App, Libre del Cigarrillo Printed Booklets, SmokefreeTXT en Español
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Results available

Promoting Breast Cancer Screening in Women Who Survived Childhood Cancer

NCT03435380
View directory record Official record
Conditions
Breast Neoplasms, Early Detection of Cancer
Interventions
Patient activation, Primary care physician activation, Control
Behavioral
Lead sponsor
Duke University
Other
Eligibility
25 Years and older · Female only
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
5
States / cities
New York, New York • Durham, North Carolina • Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Remote Observed Dosing of Suboxone to Improve Clinical Practice

NCT03769025
View directory record Official record
Conditions
Opioid-use Disorder, Opioid Dependence, Opiate Dependence
Interventions
Suboxone Remote Observed Dosing, Suboxone Attention Control
Behavioral · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 45 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 8, 2026, 4:17 AM EDT
Recruiting Not applicable Interventional

Using Tailored mHealth Strategies to Promote Weight Management Among Adolescent and Young Adult Cancer Survivors

NCT06848491
View directory record Official record
Conditions
Obesity, Cancer, Physical Activity, Cancer Survivorship, Diet
Interventions
AYA WELL Intervention, Self-Guided
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years to 39 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The YourMove Study: Optimizing Individualized and Adaptive mHealth Interventions Via Control Systems Engineering Methods

NCT05598996
View directory record Official record
Conditions
Inactivity, Physical, Sedentary Behavior
Interventions
COT-Based Intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
25 Years to 80 Years
Enrollment
386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Quality of Life Among Young Adult Cancer Survivors

NCT03446105
View directory record Official record
Conditions
Cancer
Interventions
App-based behavioral intervention, Attention control group
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years to 39 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
2
States / cities
Atlanta, Georgia • Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 9, 2018 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional

Project LIFT - Promoting Healthy Behavior Through a Wearable Fitness Device and Financial Incentives

NCT03221465
View directory record Official record
Conditions
Kidney Transplant; Complications, Liver Transplant; Complications, Obesity
Interventions
Self-monitoring of physical activity with incentives, Usual care and self-monitoring of physical activity
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Chicago, Illinois • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Results available

mActive: A Blinded, Randomized mHealth Activity Trial

NCT01917812
View directory record Official record
Conditions
Physical Activity
Interventions
Digital Activity Tracker, Smart Text Messaging
Device · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 69 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Companion: Sensor-based Two-way Communication for Physical Activity in Older Adults

NCT04827212
View directory record Official record
Conditions
Exercise, Physical Activity
Interventions
Companion
Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
60 Years to 90 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Patient-Clinician Communication Skill Training: A Mobile Education Initiative

NCT05100979
View directory record Official record
Conditions
Communication, Patient Engagement
Interventions
The Art of Medicine Series
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Results available

Dynamically Tailored Behavioral Interventions in Diabetes

NCT04226027
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
T2.coach
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Electro Magnetic Interference of Using Tablet and Smart Phone on Leadless Pacemaker (MICRA)

NCT02758210
View directory record Official record
Conditions
Bradycardia, Atrial Tachyarrhythmia
Interventions
Use of a Tablet, Use of a Smart Phone
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 8, 2017 · Synced Sep 8, 2026, 4:17 AM 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
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 8, 2026, 4:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MapTrek to Increase Activity Among Patients at Risk for Type 2 Diabetes

NCT03193229
View directory record Official record
Conditions
Pre Diabetes, Obesity
Interventions
MapTrek, Fitbit
Behavioral · Device
Lead sponsor
Philip Polgreen
Other
Eligibility
21 Years to 80 Years
Enrollment
430 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Coralville, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 8, 2026, 4:17 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Gauging Outcomes of Total Milk Ingestion on Lipid and gControl

NCT07087184
View directory record Official record
Conditions
Heart Diseases, Cardiovascular Disease
Interventions
Whole Milk-Skim Milk, Skim Milk-Whole Milk
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 8, 2026, 4:17 AM EDT