- Conditions
- Contraceptive Behavior
- Interventions
- Text Messaging Intervention
- Behavioral
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 13 Years to 21 Years · Female only
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2017
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–24
of 47
matching trials from the live ClinicalTrials.gov search.
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- 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
- Conditions
- Behavior, Health
- Interventions
- Pre-visit and post-visit patient messaging, Default pended order, EHR communication
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 16,416 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- HIV
- Interventions
- Decision support tool, PrEP Delivery
- Behavioral
- Lead sponsor
- George Washington University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2027 – 2028
- U.S. locations
- 2
- States / cities
- Washington D.C., District of Columbia • Baltimore, Maryland
- Conditions
- Hiv
- Interventions
- Case Management
- Behavioral
- Lead sponsor
- Gregory Huhn
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Influenza, Respiratory Tract Infections
- Interventions
- Text Message R/R with Direct Appointment Schedule Link, Text Message R/R without Direct Appointment Schedule Link, Text Pre-Appointment Reminder, Portal Message R/R with Direct Appointment Schedule Link, Portal Message R/R without Direct Appointment Schedule Link, Portal Pre-Appointment Reminder
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 6 Months and older
- Enrollment
- 239,567 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Lung Cancer
- Interventions
- Text Messages (TM+), Chatbot (CA), Video (VID), Reactive Patient Navigation (RPN), Proactive Patient Navigation (PPN)
- Behavioral
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 50 Years to 80 Years
- Enrollment
- 18,894 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- COVID-19, Vaccines
- Interventions
- Reminder to boost protection against COVID-19, Flu Tag Along, COVID-19 Booster & Flu Bundle
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 109,493 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Pregnancy Complications, Birth Injuries
- Interventions
- mHealth Platform
- Behavioral
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 248 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Completion of Three Dose Series of HPV, Improvement in Vaccine Intervals Between HPV Doses
- Interventions
- Telephone reminder, Text Message reminder
- Other
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 10 Years to 21 Years
- Enrollment
- 749 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2014
- U.S. locations
- 3
- States / cities
- Rochester, New York
- Conditions
- Vaccine Hesitancy, Vaccine Refusal
- Interventions
- LetsTalkShots (patient-facing CDS), LetsTalkShots (provider-facing CDS), Appointment Reminder Message
- Other
- Lead sponsor
- Johns Hopkins Bloomberg School of Public Health
- Other
- Eligibility
- Not listed
- Enrollment
- 1,200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- COVID-19, Vaccines
- Interventions
- Reminder that facilitates action, Consistency framing, Information provision about the uniqueness of the bivalent booster, Information provision about bivalent booster eligibility, Information provision about the severity of COVID-19 symptoms
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 177,720 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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
- Conditions
- Health Maintenance, Diabetes, Cancer
- Interventions
- Reminder of preventive care measures, Acknowledgement of personal responsibility, Planning prompt
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10,751 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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
- Conditions
- Lung Cancer
- Interventions
- Patient education, Referral to financial navigation resources, Patient Reminders, Provider Reminers
- Behavioral
- Lead sponsor
- University of California, Irvine
- Other
- Eligibility
- 50 Years to 80 Years
- Enrollment
- 79 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 7
- States / cities
- Costa Mesa, California • Irvine, California • Laguna Hills, California + 4 more
- Conditions
- Immunization Rate
- Interventions
- Text Message Reminder/Recall, Parent Preference
- Behavioral
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 11 Years to 17 Years
- Enrollment
- 34,581 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- 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
- Conditions
- Influenza, Human
- Interventions
- Flu shot text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 74,811 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 2
- States / cities
- Danville, Pennsylvania • Philadelphia, Pennsylvania
- 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
- Conditions
- Gastrointestinal Disease
- Interventions
- An Enhanced Reminder
- Behavioral
- Lead sponsor
- Kaiser Permanente
- Other
- Eligibility
- 21 Years to 120 Years
- Enrollment
- 15,974 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Female Breast Carcinoma, Healthy Subject
- Interventions
- Questionnaire Administration, Telephone-Based Intervention
- Other · Behavioral
- Lead sponsor
- Fox Chase Cancer Center
- Other
- Eligibility
- Female only
- Enrollment
- 160 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Psoriasis
- Interventions
- Otezla - Standard Care, Reminder Text Intervention with apremilast, Extended Consultation for apremilast
- Drug · Behavioral
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 18 Years to 85 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- 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