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ClinicalTrials.gov public records Last synced Oct 23, 2026, 8:29 AM EDT

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Showing 169–192 of 376 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Text Messaging Only Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of an Interactive Mobile Phone-Based Brief Intervention to Reduce Substance-Impaired Driving

NCT05537116
View directory record Official record
Conditions
Driving Impaired
Interventions
Personalized feedback, Personalized feedback and text messages, Information Only
Behavioral
Lead sponsor
Western Kentucky University
Other
Eligibility
18 Years to 29 Years
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Bowling Green, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Motivating Campus Change Project Pilot Study

NCT03962751
View directory record Official record
Conditions
Drinking Behavior
Interventions
Simultaneous Post Feedback Intervention Delivery, Sequential Post Feedback Intervention Delivery, Text Message Boosters
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 24 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 16, 2020 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

MI With Text Messaging to Reduce Sexual Risk and Hazardous Drinking Among MSM

NCT03755661
View directory record Official record
Conditions
Alcohol; Harmful Use, Sex, Unsafe
Interventions
MI&TXT4MSM
Behavioral
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
21 Years to 50 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2021 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrating Primary & Secondary Interventions for Cervical Cancer Prevention in Primary Care Settings

NCT03033550
View directory record Official record
Conditions
HPV-Related Carcinoma
Interventions
brief negotiated mobile application
Behavioral
Lead sponsor
Boston Medical Center
Other
Eligibility
9 Years to 17 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Oct 23, 2026, 8:29 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Increasing Physical Activity Through Social Support and Stress Resilience

NCT06896825
View directory record Official record
Conditions
Healthy, Subjective Cognitive Decline (SCD), Sedentary Behavior, Social Isolation in Older Adults
Interventions
Self-monitoring
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
60 Years and older
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Vaccine Message Medium on Intentions to Vaccinate in College Students

NCT07861087
View directory record Official record
Conditions
COVID-19 Vaccination
Interventions
COVID-19 Video, COVID-19 Words, COVID-19 Poster
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
18 Years and older
Enrollment
1,064 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
State College, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Lactation Success in Mothers of Critically Infants

NCT04097860
View directory record Official record
Conditions
Breast Pumping
Interventions
Text message including biomarker of breast pumping adequacy
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older · Female only
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 28, 2025 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Results available

Mental Health Among Patients, Providers, and Staff During the COVID-19 Era

NCT04700137
View directory record Official record
Conditions
Covid19, Mental Health
Interventions
Caring Contacts Plus Introductory Phone Call (CC+), Caring Contacts without an introductory phone call (CC)
Other
Lead sponsor
St. Luke's Health System, Boise, Idaho
Other
Eligibility
12 Years and older
Enrollment
666 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boise, Idaho
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Oct 23, 2026, 8:29 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

PREVENT HPV -Related Cancers Trial

NCT07217145
View directory record Official record
Conditions
HPV Vaccination, Uptake Vaccination, Series Completion
Interventions
PREVENT
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
1,455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Increasing CRC Screening in Community Health Centers Through Mobile Messaging Optimization

NCT07569250
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Personalized Text Message, Screening Concerns Text Message, Message Framing Text Message, Autonomy Support Outreach, Impediments Support Outreach, Live Support Outreach, Data Reporting and Visualization System Tools
Behavioral · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
45 Years to 75 Years
Enrollment
7,220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2032
U.S. locations
4
States / cities
Boston, Massachusetts • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Not listed Not applicable Interventional

Messaging Interventions to Reduce Alcohol Problems Project

NCT03695653
View directory record Official record
Conditions
Alcohol-Related Disorders, Alcohol Use Disorders, Alcohol Drinking, Alcoholism, Alcohol Abuse
Interventions
Drink Tracking (MA), Adaptive Tailored (TA), Tailored (TO)
Behavioral
Lead sponsor
Partnership to End Addiction
Other
Eligibility
21 Years to 75 Years
Enrollment
730 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Oct 23, 2026, 8:29 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A Study of Using Social Networks to Encourage Three Peers to Complete Screening for Colorectal Cancer

NCT05793593
View directory record Official record
Conditions
Colon Cancer Screening
Interventions
FITx3 intervention and CRC education, Colorectal Cancer (CRC) education alone
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
45 Years to 75 Years · Male only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Results available

Increasing Steps Per Day in Rural Veterans

NCT03930238
View directory record Official record
Conditions
Obesity, Overweight
Interventions
VA MapTrek, Fitbit Only
Behavioral
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 100 Years
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional

Pain and Narcotic Usage After Orthopaedic Surgery

NCT03991546
View directory record Official record
Conditions
Fractures, Closed, Pain, Postoperative, Pain Catastrophizing, Pain, Acute, Analgesia, Opioid Use, Acceptance and Commitment Therapy, Orthopedics, Analgesics, Opioid, Text Messaging
Interventions
Acceptance and Commitment Therapy Delivered via an Automated Mobile Messaging Robot
Behavioral
Lead sponsor
Christopher Anthony
Other
Eligibility
18 Years to 100 Years
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 4, 2019 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The SleepTrackTXT2 Randomized Trial With Air-medical Personnel

NCT02783027
View directory record Official record
Conditions
Poor Quality Sleep, Fatigue
Interventions
SleepTrackTXT2
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 100 Years
Enrollment
83 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 26, 2019 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

eHealth for Breastfeeding Support - the HOTSPOT Trial

NCT06378320
View directory record Official record
Conditions
Breast Feeding
Interventions
App access and Text message, App access only
Other
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
3
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional

Improving Antiretroviral Medication Adherence Among HIV-infected Youth

NCT01347437
View directory record Official record
Conditions
HIV Infection
Interventions
Positive STEPS
Behavioral
Lead sponsor
Fenway Community Health
Other
Eligibility
13 Years to 24 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Oct 23, 2026, 8:29 AM EDT
Recruiting Not applicable Interventional

Just-in-time Interventions for Reducing Short-term Suicide Risk

NCT05793541
View directory record Official record
Conditions
Suicide
Interventions
Phone call, Text messaging, Automated interactive smartphone-based tool, Non-interactive pop-up messages
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Incentivizing Meditation App Habit Formation

NCT05217602
View directory record Official record
Conditions
Stress, Adherence, Treatment
Interventions
AC+ARwdC, AC+RwdC, Usual Calm Control (UC)
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
597 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 22, 2022 · Synced Oct 23, 2026, 8:29 AM EDT
Recruiting Not applicable Interventional

Sleep and Glycemic Control in Type 2 Diabetes Adolescents

NCT04213547
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Loss frame sleep extension intervention
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
12 Years to 20 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Enrolling by invitation Phase 2 Interventional Accepts healthy volunteers

Consumption of More Ideal Food Options (COMIDA: Consumo de Opciones Más Ideales De Alimentos)

NCT03851458
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Initial in-person individual diet and exercise counseling (N vs. Y), Thrice weekly diet and exercise text messages (N vs. Y), Weekly telephone support (N vs. Y), Self-monitoring tools (N vs. Y) (for diet and weight)
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
1,785 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

VR Smoking Cessation During a Dental Hygiene Visit

NCT04524533
View directory record Official record
Conditions
Smoking Cessation
Interventions
Experimental smoking cessation video, Control video, Brochure of smoking cessation EBTs, Tailored text message program, Assessment text messages
Behavioral · Other
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Home Visitation Enhancing Linkages Project in Kansas

NCT06624332
View directory record Official record
Conditions
Substance Use
Interventions
e-SBI main session, e-SBI Booster Session, Text messaging
Behavioral
Lead sponsor
The National Center on Addiction and Substance Abuse at Columbia University
Other
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 21, 2026 · Synced Oct 23, 2026, 8:29 AM EDT
Completed Phase 4 Interventional Results available

Mobile Evidence-Based Smoking Cessation for Veterans Living With HIV (MESH)

NCT04135937
View directory record Official record
Conditions
Human Immunodeficiency Virus, Smoking
Interventions
Bupropion, Varenicline, Cognitive Behavioral Therapy, Nicotine Replacement Therapy, Relapse Prevention Text Messaging
Drug · Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 23, 2026, 8:29 AM EDT