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ClinicalTrials.gov public records Last synced Oct 22, 2026, 3:34 PM EDT

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Showing 73–96 of 203 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: SMS Text Message Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smoking Cessation Via Text Messaging: Feasibility Testing of Stop My Smoking USA

NCT01516632
View directory record Official record
Conditions
Smoking Cessation
Interventions
SMS USA
Behavioral
Lead sponsor
Center for Innovative Public Health Research
Other
Eligibility
18 Years to 25 Years
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Santa Ana, California
Source: ClinicalTrials.gov public record
Updated Jun 6, 2016 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Results available

MOBILE Intervention in College Students With Elevated Blood Pressure

NCT05956925
View directory record Official record
Conditions
Hypertension
Interventions
Intervention group was asked to take their BP daily and rate their motivation level and communicate with the research assistant. Their level will trigger the appropriate behavioral change SMS prompt.
Behavioral
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 29 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 22, 2026, 3:34 PM 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 23, 2017 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Study of a Smartphone-Based Switch Program

NCT06544772
View directory record Official record
Conditions
Smoking Cessation
Interventions
Pivot cigarette smoking cessation program
Device
Lead sponsor
Pivot Health Technologies Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Carlos, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 1 Interventional

Mobile Phone Text Message Program to Understand Symptoms and Improve Outcomes in Minor Head Injury Patients

NCT01668342
View directory record Official record
Conditions
Head Injury, Minor
Interventions
SMS assessments & feedback
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 27, 2015 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional

Midwest TXTXT Scale up of an Evidence-Based Intervention to Promote HIV Medication Adherence

NCT05783297
View directory record Official record
Conditions
HIV Infections
Interventions
Treatment Text (TXTXT), Standard of Care
Behavioral
Lead sponsor
Amy K. Johnson, PhD, MSW
Other
Eligibility
16 Years to 35 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
12
States / cities
Fort Lauderdale, Florida • Chicago, Illinois • Indianapolis, Indiana + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional

UCLA Health Patient Health Maintenance Text Reminder

NCT05791942
View directory record Official record
Conditions
Health Maintenance, Diabetes, Cancer
Interventions
Reminder of preventive care measures, Persuasion via anecdote, Behavioral: Action prompt
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
10,583 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 2, 2025 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Acute Post-Operative Dental Pain Management Using New Health Information Technology

NCT03881891
View directory record Official record
Conditions
Pain, Postoperative, Complication, Postoperative
Interventions
Follow-app intervention arm
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
1,525 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
2
States / cities
San Francisco, California • Hillsboro, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Oct 22, 2026, 3:34 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

IMProving Adherence to Colonoscopy Through Teams and Technology

NCT06191185
View directory record Official record
Conditions
Colon Cancer, Cancer Colorectal, Colorectal Cancer
Interventions
BPB, No PIN, BPB, PIN, No BPB, PIN, No BPB, No PIN
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
1,418 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Phase 2 Interventional

Text to Move (TTM)Study

NCT01569243
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Text messages, Usual care
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Oct 22, 2026, 3:34 PM EDT
Recruiting Phase 3 Interventional

The Beat Pain Better Trial

NCT06932887
View directory record Official record
Conditions
Osteoarthritis, Chronic Pain Management
Interventions
Text Messaging, Motivational Messaging, Physical Activity Counseling and Self-Directed Walk with Ease, Enhanced Walk with Ease
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
45 Years and older
Enrollment
346 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Salt Lake City, Utah • West Valley City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Not listed Not applicable Interventional

A Cognitive Behavioral Therapy-Based Text Message Intervention for Methamphetamine Dependence

NCT01899313
View directory record Official record
Conditions
Amphetamine-Related Disorders
Interventions
CBT- based SMS text messaging intervention, CBT group therapy
Behavioral
Lead sponsor
California Pacific Medical Center Research Institute
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2014
U.S. locations
2
States / cities
Lafayette, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Results available

Patient Portal Flu Vaccine Reminders_RCT 5 (LADHS)

NCT05535777
View directory record Official record
Conditions
Influenza, Respiratory Tract Infections
Interventions
Enhanced texts with Callback by a Person, Enhanced Bidirectional Texts
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
6 Months and older
Enrollment
246,295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2025 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Results available

EHR-Based Medication Complete Communication Strategy to Promote Safe Opioid Use

NCT02431793
View directory record Official record
Conditions
Opioid Use, Unspecified
Interventions
EMC2 Strategy, SMS Text Reminders
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
652 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Oct 22, 2026, 3:34 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 Jun 1, 2020 · Synced Oct 22, 2026, 3:34 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effectiveness of SMS (Short Message Service) Text Messaging in Increasing Adherence to Gardasil

NCT01276184
View directory record Official record
Conditions
HPV Vaccines
Interventions
SMS Text Message
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
12 Years to 26 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Oct 22, 2026, 3:34 PM EDT
Recruiting No phase listed Observational

SMS-Based Remote Symptom Monitoring for Patients With Plasma Cell Disorders

NCT07850284
View directory record Official record
Conditions
AL Amyloidosis, Multiple Myeloma
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Getting INFORMED and Living Well Among Asian Americans in California

NCT05968300
View directory record Official record
Conditions
COVID-19, Well-Being, Psychological
Interventions
INFORMED-Living Well, Text Messaging Only
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
616 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
4
States / cities
Fresno, California • San Francisco, California • San Jose, California
Source: ClinicalTrials.gov public record
Updated Nov 22, 2024 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Results available

Digital Mental Health Service for Non-Treatment Seeking Young Adults

NCT04948268
View directory record Official record
Conditions
Depression, Anxiety, Suicidal Ideation
Interventions
Adaptive messaging intervention, Non-personalized messaging intervention, Coaching, Psychoeducational links
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 25 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional Results available

Adherence Interventions for HIV Youth Via Text & Cell Phone - Sequential Multiple Assignment Randomized Trial (SMART)

NCT03535337
View directory record Official record
Conditions
HIV Infections
Interventions
CPS, SMS
Behavioral
Lead sponsor
Florida State University
Other
Eligibility
15 Years to 24 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 13, 2024 · Synced Oct 22, 2026, 3:34 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Overcoming Racial Disparities in Screening Mammography

NCT07549139
View directory record Official record
Conditions
Breast Cancer, Cancer of the Breast
Interventions
Appointment mail reminder, Telephone counseling, Digital navigation video, Automated phone call
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
40 Years and older · Female only
Enrollment
176 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

A Text Messaging Trial to Test Vaping Health Messages Optimized to Young Adults' Vaping Status

NCT07038317
View directory record Official record
Conditions
Vaping Behaviors, Message Exposure, Young Adults
Interventions
Intervention, Control
Other
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years to 24 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Active, not recruiting Not applicable Interventional

Technology-Enabled Activation of Skin Cancer Screening for Stem Cell Transplant Survivors and Their Primary Care Providers, TEACH Study

NCT04358276
View directory record Official record
Conditions
Skin Carcinoma
Interventions
Computer-Assisted Intervention, Dermatoscope, Educational Intervention, Educational Intervention (Physician), Questionnaire Administration, Text Message
Other · Device
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
840 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 22, 2026, 3:34 PM EDT
Completed Not applicable Interventional

Using a Motivational Interviewing (MI) Informed Text Messaging Program to Lower Blood Sugar in Diabetic Patients.

NCT02012478
View directory record Official record
Conditions
Type II Diabetes Mellitus
Interventions
MI- informed SMS program
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 90 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 26, 2018 · Synced Oct 22, 2026, 3:34 PM EDT