- Conditions
- Influenza, Respiratory Tract Infections
- Interventions
- Portal Reminders for Influenza Vaccination: Direct scheduling link, Portal Reminders for Influenza Vaccination: No direct scheduling link, Pre-Commitment Prompt, Pre-Appointment flu vaccine reminders
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 4 Months and older
- Enrollment
- 213,773 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Los Angeles, California
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 306
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Dental Care
- Interventions
- Reminder Messages, Walk-in Visits, Motivation-enhanced Communication
- Behavioral
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Breast Carcinoma, Cervical Carcinoma, Colorectal Carcinoma
- Interventions
- Cancer Screening, Discussion, Educational Activity, Educational Intervention, Focus Group, Health Care Delivery, Health Promotion, Health Promotion and Education, Health Risk Assessment, Implementation, Informational Intervention, Internet-Based Intervention, Interview, Outreach, Patient Navigation, Survey Administration
- Other · Behavioral · Procedure
- Lead sponsor
- Ohio State University Comprehensive Cancer Center
- Other
- Eligibility
- Not listed
- Enrollment
- 2,067 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2029
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- Multiple Myeloma, Stem Cell Transplant
- Interventions
- Pack Health's Digital Life Coaching (DLC), Electronic Handouts
- Behavioral · Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2023
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Booster Message, Booster Message + Financial Incentive
- Interventions
- Messaging, Financial Incentive, Placebo
- Behavioral · Other
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 57,893 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Martinez, California
- 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
- 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
- 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
- Conditions
- Tobacco Use Cessation, Tobacco Cessation, Tobacco Use Disorder, Tobacco Dependence, Tobacco-Use Disorder, Virus, Human Immunodeficiency
- Interventions
- Web-Based Tailored Smoking Cessation Intervention, Standard of Care
- Behavioral
- Lead sponsor
- Georgetown University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 138 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- HIV/AIDS
- Interventions
- Enhanced Intervention, Basic Intervention
- Behavioral
- Lead sponsor
- Temple University
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2021
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Interventions
- Reminder, Financial incentive, Lottery
- Behavioral
- Lead sponsor
- National Bureau of Economic Research, Inc.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 57,581 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- Conditions
- Hypertensive Emergency, Hypertension, Blood Pressure
- Interventions
- ED-based behavioral intervention, ED usual care plus education
- Behavioral
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 21 Years to 85 Years
- Enrollment
- 220 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Colorectal Cancer
- Interventions
- No Direct Patient Outreach, Direct Patient Outreach: Colonoscopy Only, Direct Patient Outreach: Sequential Choice, Visit-Based Nudge/Text, No Nudge/Text
- Behavioral
- Lead sponsor
- Abramson Cancer Center at Penn Medicine
- Other
- Eligibility
- 50 Years to 72 Years
- Enrollment
- 20,000 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Human Papilloma Virus
- Interventions
- Text-based reminder for recommended HPV vaccine or WCC, Non-specific text-based reminder (general health tip)
- Other
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 11 Years to 18 Years
- Enrollment
- 3,812 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Type1diabetes
- Interventions
- Positive Psychology Intervention, Education
- Behavioral
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 13 Years to 17 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Opioid-use Disorder
- Interventions
- Reminders messages to improve adherence.
- Behavioral
- Lead sponsor
- Washington State University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Spokane, Washington
- Conditions
- Preventable Disease, Vaccine, Health Care Utilization
- Interventions
- 1 automated message, 2 automated messages, No personal contact attempt, 1 personal contact attempt
- Other
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- 12 Months to 4 Years
- Enrollment
- 1,312 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Medication Adherence
- Interventions
- Adherence Counseling, General Health Counseling, Text Messages
- Behavioral
- Lead sponsor
- University of Connecticut
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 600 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Storrs, Connecticut
- Conditions
- Alcohol Use Disorder, Hazardous Alcohol Use
- Interventions
- LDART, Psychoeducational control
- Device · Behavioral
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- 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
- Conditions
- Abdominal Surgery
- Interventions
- MIR Spirobank G, ZEPHYRx®, Conventional spirometer
- Device
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 2 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- 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
- Conditions
- Healthcare Access for Taxi Drivers
- Interventions
- questionnaires
- Behavioral
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 21 Years to 85 Years · Male only
- Enrollment
- 756 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2027
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- COVID-19, COVID-19 Testing
- Interventions
- Motivational interviewing (MI) counseling, Text messages (TMs) and quiz questions (QQs), Peer education, Access to COVID testing
- Behavioral
- Lead sponsor
- New York University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 438 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- New York, New York