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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Text-message reminder Clear all
Completed Not applicable Interventional Results available

Mailed FIT Outreach 2022

NCT05341622
View directory record Official record
Conditions
Colorectal Cancer, Colon Cancer
Interventions
Differentiated Box, Standard Mail, Text, No Text, Reminder, No Reminder
Behavioral
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
50 Years to 74 Years
Enrollment
5,460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Evaluation of the School Kids Influenza Prevention Project

NCT03307642
View directory record Official record
Conditions
Childhood Influenza Vaccination, School-located Influenza Vaccination
Interventions
Text message notification
Other
Lead sponsor
University of Rochester
Other
Eligibility
4 Years to 19 Years
Enrollment
18,540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 11, 2018 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Results available

CBT Texts for PTSD & Hazardous Drinking (Project Better)

NCT05372042
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Alcohol Use
Interventions
CBT Text Messages
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
505 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Sep 17, 2026, 6:24 PM EDT
Not listed Not applicable Interventional

COVID-19 Booster Dose Reminder/Recall for Adolescents

NCT05571657
View directory record Official record
Conditions
COVID-19 Vaccines
Interventions
Reminder/Recall Sent Via Preferred Method of Communication
Behavioral
Lead sponsor
Marshfield Clinic Research Foundation
Other
Eligibility
12 Years to 17 Years
Enrollment
4,304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Marshfield, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Sep 17, 2026, 6:24 PM EDT
Recruiting Not applicable Interventional

Arrival Time Implementation

NCT07314697
View directory record Official record
Conditions
Primary Care
Interventions
Behaviorally informed appointment communications, Control appointment communications
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
300,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 17, 2026, 6:24 PM EDT
Not yet recruiting Not applicable Interventional

Adaptive Cell Phone Support (ACPS)

NCT07064824
View directory record Official record
Conditions
Medication Adherence
Interventions
Adaptive Cell Phone Support, Computer-Delivered Cell Phone Support, Automated Text Reminders
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
15 Years to 20 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Sep 17, 2026, 6:24 PM EDT
Not yet recruiting Not applicable Interventional

Preoperative Outreach to Improve Surgical Attendance

NCT07644819
View directory record Official record
Conditions
Urology
Interventions
Preoperative Outreach
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 17, 2026, 6:24 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Delivering VergeRx at FQHCs

NCT06161675
View directory record Official record
Conditions
Tobacco Use Cessation
Interventions
QuitAid, SmokefreeTXT, Nicotine Replacement Therapy Patch, Nicotine lozenge
Behavioral · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Well-Child Visit Trial

NCT05086237
View directory record Official record
Conditions
Child Health, Text Messaging
Interventions
Text message reminders
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
739 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 29, 2022 · Synced Sep 17, 2026, 6:24 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 12, 2024 · Synced Sep 17, 2026, 6:24 PM EDT
Active, not recruiting Not applicable Interventional

HPV Vaccine Reminders - SEARCH II Study

NCT06161831
View directory record Official record
Conditions
Human Papillomavirus Vaccination
Interventions
Text Message/automated phone reminder
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
10 Years to 14 Years · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Text Message Appointment Reminders

NCT01676337
View directory record Official record
Conditions
Text Messages, Emergencies
Interventions
Text message appointment reminder
Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
374 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Test Up Now Education Program

NCT04304001
View directory record Official record
Conditions
Colorectal Cancer Screening
Interventions
Community Health Advisor, Usual care
Behavioral
Lead sponsor
Florida A&M University
Other
Eligibility
45 Years to 64 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Oct 28, 2024 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Phase 4 Interventional Results available

Analysis of Adherence in Subjects Undergoing Differin Gel, 0.1% Treatment of Moderate to Severe Acne Vulgaris

NCT00696449
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Adapalene, frequent visits, electronic reminder, Parent reminder, Standard of care
Drug · Behavioral
Lead sponsor
Wake Forest University
Other
Eligibility
13 Years to 18 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parents of Young Adults With Type 1 Diabetes: An Exploratory Study

NCT03158415
View directory record Official record
Conditions
Type1diabetes, Parents
Interventions
T1DToolkit.org mobile diabetes education
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 99 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Text Message Reminder-Recalls For Early Childhood Vaccination

NCT01199666
View directory record Official record
Conditions
Vaccination
Interventions
Text message
Other
Lead sponsor
Columbia University
Other
Eligibility
9 Months to 50 Years
Enrollment
2,586 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reminder Modality for CRC Screening

NCT05012007
View directory record Official record
Conditions
Colorectal Cancer
Interventions
Reminder Phone, Reminder Text
Other
Lead sponsor
VA Puget Sound Health Care System
Federal
Eligibility
45 Years to 75 Years
Enrollment
2,653 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 3, 2022 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Self-Management Using Text Messaging in a Homeless Population

NCT03034993
View directory record Official record
Conditions
Chronic Disease
Interventions
Text Messaging
Behavioral
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2019 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Marketability of a Technology-based Intervention to Increase HPV Vaccination

NCT03497936
View directory record Official record
Conditions
Human Papilloma Virus
Interventions
Women's Stories
Behavioral
Lead sponsor
Real Prevention, LLC
Industry
Eligibility
18 Years to 26 Years · Female only
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
7
States / cities
Irvine, California • Chicago, Illinois • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2022 · Synced Sep 17, 2026, 6:24 PM EDT
Active, not recruiting Not applicable Interventional

Texting for Diabetes

NCT03025984
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Texting
Behavioral
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional

Reducing Delay in Vaccination of Children: Logistic Barriers

NCT03516682
View directory record Official record
Conditions
Communicable Disease
Interventions
Reminders
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
1 Month to 11 Months
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 6, 2019 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Adherence to Treatment for Latent TB Infection Through Text Messaging

NCT02690818
View directory record Official record
Conditions
Latent Tuberculosis
Interventions
Regularly scheduled LTBI medication reminder text messages
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Interventions to Improve the HIV PrEP Cascade Among Methamphetamine Users

NCT03584282
View directory record Official record
Conditions
HIV/AIDS, Adherence, Medication, Drug Use
Interventions
Text Messaging, Peer Navigation
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Sep 17, 2026, 6:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Light Exposure Tracker Designed to Improve Circadian Rhythms - Aim 1

NCT06356337
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Light goggles, Daily reminder test message
Device · Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Menands, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Sep 17, 2026, 6:24 PM EDT