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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:22 AM EDT

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Showing 1–24 of 60 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Message Delivery by Smartphone Clear all
Completed Phase 4 Interventional

Smartphone-delivered Automated Video-assisted Smoking Treatment for Patrons of a Food Resource Center

NCT03060278
View directory record Official record
Conditions
Smoking Cessation
Interventions
Self-help materials, nicotine patch, Smartphone-delivered automated treatment, Counseling
Behavioral · Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 12, 2018 · Synced Oct 22, 2026, 2:22 AM EDT
Terminated Early Phase 1 Interventional

Is a Smartphone Application Effective as an Oral Medication Adherence Aid

NCT01968876
View directory record Official record
Conditions
Hypertension, Diabetes, Dyslipidemia
Interventions
Medication Adherence Smartphone App
Other
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
3
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 20, 2017 · Synced Oct 22, 2026, 2:22 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Piloting a Generative Artificial Intelligence Chatbot in a Mobile Weight Loss Program

NCT07534254
View directory record Official record
Conditions
Overweight and/or Obesity
Interventions
AGILE Intervention, Chatbot
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 39 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Results available

Digital Intervention to Treat Anxiety and Depression Among Persons Receiving Treatment for Opioid Use Disorder

NCT05047627
View directory record Official record
Conditions
Opioid-use Disorder, Anxiety Disorders, Depressive Disorder
Interventions
Smartphone-Based Digital Intervention
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

StandUPTV: Reducing Sedentary Screen Time in Adults

NCT04464993
View directory record Official record
Conditions
Sedentary Behavior, Screen Time, Physical Activity, Sleep
Interventions
Device-based feedback, self-monitoring, and education: CORE, Sedentary Screen Time lockout: LOCKOUT, Context-based prompts: TEXT, Earn sedentary screen time through moderate-vigorous physical activity: EARN
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
23 Years to 64 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
2
States / cities
Tempe, Arizona • San Luis Obispo, California
Source: ClinicalTrials.gov public record
Updated Apr 15, 2025 · Synced Oct 22, 2026, 2:22 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Smart Olfaction App to Reduce Relapse

NCT07007195
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Ad Libitum Use followed by Instructed Use of the Inspire Device, Instructed Use followed by Ad Libitum Use of the Inspire Device, Smart-T Smoking Cessation App with the Inspire Device Condition, Smart-T Smoking Cessation App Without the Inspire Device Condition, Nicotine replacement therapy (NRT), Inspire Device
Device · Drug
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Prostate Cancer Genius App Education and Home-based PSA Screening for African American Men

NCT05331638
View directory record Official record
Conditions
Prostate Cancer, Health Behavior
Interventions
Prostate Cancer Genius App, US Prevention Taskforce App
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
55 Years to 69 Years · Male only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Results available

Testing the Impact of Smartphone-based Messaging to Support Young Adult Smoking Cessation - Pilot

NCT05991934
View directory record Official record
Conditions
Tobacco Cigarette Smoking
Interventions
Smartphone-based intervention messages
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 30 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Lifestyle Change Via Tailored mHealth Feedback to Improve Health

NCT03367936
View directory record Official record
Conditions
Overweight and Obesity
Interventions
One-on-one Session, Self-monitoring, Feedback
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
502 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2025 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The MARY-JANE Cannabis and Heart Rhythm Trial

NCT06021613
View directory record Official record
Conditions
Premature Atrial Contractions, Premature Ventricular Contractions
Interventions
Randomized instructions
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PROmotion of COVID-19 BOOSTer VA(X)Ccination in the Emergency Department - PROBOOSTVAXED

NCT06156215
View directory record Official record
Conditions
COVID-19
Interventions
Vaccine Messaging, Vaccine Acceptance Question
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
919 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
7
States / cities
San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 22, 2026, 2:22 AM EDT
Active, not recruiting Not applicable Interventional

EPI-MINN: Targeting Cognition and Motivation

NCT05112432
View directory record Official record
Conditions
Psychosis
Interventions
Cognitive and Social Cognitive Training, Personalized Real-Time Intervention for Motivational Enhancement (PRIME) App, Early Psychosis Coordinated Specialty Care
Device · Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 40 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
3
States / cities
Duluth, Minnesota • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional

Smartphone-delivered Automated Video-assisted Smoking Treatment for People Living With HIV

NCT03082482
View directory record Official record
Conditions
Smoking Cessation
Interventions
Self-help materials, nicotine patch, Counseling, Smartphone-delivered automated treatment
Behavioral · Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 99 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Oct 22, 2026, 2:22 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 24, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tension Tamer Randomized Control Trial

NCT03168789
View directory record Official record
Conditions
Pre-hypertension
Interventions
Tension Tamer (TT), Lifestyle education program (SPCTL)
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 90 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional

Telephone-Based Intervention in Increasing Adherence to Adjuvant Hormonal Therapy in Patients With Breast Cancer

NCT02400060
View directory record Official record
Conditions
Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage 0 Breast Cancer
Interventions
Telephone-Based Intervention, Survey Administration, Laboratory Biomarker Analysis
Behavioral · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
4
States / cities
Goldsboro, North Carolina • Winston-Salem, North Carolina • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 22, 2026, 2:22 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 13, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Calm Sleep Coaching

NCT04566822
View directory record Official record
Conditions
Sleep Disturbance
Interventions
High Touch intervention, Medium Touch intervention, Low Touch intervention, Sleep Education Control
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 24, 2020 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Project IntERact Study

NCT03940716
View directory record Official record
Conditions
Violence, Substance Use, Criminal Behavior
Interventions
IntERact
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
16 Years to 24 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Flint, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 6, 2021 · Synced Oct 22, 2026, 2:22 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
Nashvile, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Not yet recruiting Not applicable Interventional

Personalized Care for Prenatal Stress Reduction & Prevention of Preterm Birth (PTB) Disparities

NCT06915428
View directory record Official record
Conditions
Preterm Birth Complication, Preterm Birth, Preterm Birth Recurrence, Preeclampsia, Preeclampsia (PE), Hypertensive Disorders of Pregnancy, Support Program, Stress, Resilience, Psychological, Empowerment, Patient, Emotional Stress, Pregnancy, Pregnancy Complications, Pregnancy Induced Hypertension, Neonates and Preterm Infants, Cervical Insufficiency, Social Determinants of Health (SDOH), Cervical Shortening, Disparities in Pregnancy Complications, Disparities, Prenatal Care, Care Coordination
Interventions
Care coordination, Electronic massage, support gift #1, Support gift #2, Support gift #3, Support gift #4, Additional PTBCARE+ support, Stress reduction toolkit - Visit 1 (V1), PTBCARE+ mobile application (app) and website, Sleep, meditation, and Wellness app, Emergency low blood sugar kit, Low dose aspirin (LDA), Visit #2 Stress Reduction Toolkit
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older · Female only
Enrollment
1,228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Active, not recruiting Not applicable Interventional

EPI-MINN: Targeting Cognition and Motivation - National

NCT05877716
View directory record Official record
Conditions
Psychosis, Psychosis Nos/Other, Schizophrenia, Schizo Affective Disorder, Schizoaffective Disorder, Prodromal Schizophrenia, Schizophrenia Spectrum and Other Psychotic Disorders, Schizophreniform Disorders, Major Depression With Psychotic Features, Unspecified Psychosis, Bipolar Disorder
Interventions
Cognitive and Social Cognitive Training, Personalized Real-Time Intervention for Motivational Enhancement (PRIME) App, Early Psychosis Coordinated Specialty Care
Device · Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
15 Years to 40 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 22, 2026, 2:22 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SCOPE-Chinese Women Study

NCT04326660
View directory record Official record
Conditions
Cancer, Breast, Obesity, Abdominal
Interventions
SCOPE-Chinese Women
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Oct 22, 2026, 2:22 AM EDT
Recruiting Not applicable Interventional

MOMs Chat and Care Study

NCT06335381
View directory record Official record
Conditions
Severe Maternal Morbidity
Interventions
Maternal Health Education Resources, Prenatal Telehealth Visits, Postpartum Telehealth Visits, Home Blood Pressure Monitor, Fitbit
Other · Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
674 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Oct 22, 2026, 2:22 AM EDT