- Conditions
- COVID-19 Vaccines, Telemedicine, Vaccine Hesitancy, Pediatric ALL
- Interventions
- COVID-19 Vaccine Uptake App, General Health App
- Behavioral · Other
- Lead sponsor
- IDeA States Pediatric Clinical Trials Network
- Network
- Eligibility
- 18 Years and older
- Enrollment
- 1,934 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 15
- States / cities
- Little Rock, Arkansas • Wilmington, Delaware • Honolulu, Hawaii + 12 more
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 74
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Vaccine Hesitancy, Vaccine Refusal
- Interventions
- Not listed
- Lead sponsor
- Boston Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 68 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vaccine Hesitancy, Climate Change
- Interventions
- Social diffusion intervention
- Behavioral
- Lead sponsor
- Johns Hopkins Bloomberg School of Public Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 600 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- COVID-19, Vaccine Hesitancy
- Interventions
- Health Communication, Health Communication + Structural
- Behavioral
- Lead sponsor
- Marc Kiviniemi
- Other
- Eligibility
- 18 Years to 99 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Hazard, Kentucky
- Conditions
- Covid19, Vaccine Refusal, Vaccine Hesitancy
- Interventions
- COVID-19 Vaccine Education at the Point of COVID-19 Testing
- Behavioral
- Lead sponsor
- Xavier University of Louisiana.
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 377 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- New Orleans, Louisiana
- Conditions
- COVID-19, Trust
- Interventions
- Community-led discussion
- Behavioral
- Lead sponsor
- Old Dominion University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 49 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Norfolk, Virginia
- Conditions
- COVID-19 Vaccination
- Interventions
- CONFIDENCE
- Behavioral
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 667 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- Vaccine Hesitancy
- Interventions
- MOtivational interviewing Tool to Improve Vaccine AdherencE (MOTIVE)
- Other
- Lead sponsor
- Cedarville University
- Other
- Eligibility
- 0 Years to 6 Years
- Enrollment
- 4,191 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Springfield, Ohio
- Conditions
- Health Behavior, Colorectal Cancer, Influenza, COVID-19, Vaccine Hesitancy, Vaccine-Preventable Diseases, Healthcare Patient Acceptance
- Interventions
- Financial incentive for colorectal cancer screening, Financial incentive for flu shot, Financial incentive for COVID-19 shot
- Behavioral
- Lead sponsor
- Tulane University
- Other
- Eligibility
- 45 Years to 75 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- New Orleans, Louisiana
- Conditions
- Papilloma Viral Infection, Vaccine Hesitancy, Communication
- Interventions
- Messages
- Behavioral
- Lead sponsor
- Abramson Cancer Center at Penn Medicine
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 5,337 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- COVID-19, COVID-19 Pandemic
- Interventions
- COVID-19 walk-up, on-site testing strategy, Community Health Worker (CHW) leading testing navigation and general preventive care reminders, No-cost self-testing kit vending machines
- Behavioral
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- Not listed
- Enrollment
- 6,527 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- San Ysidro, California
- Conditions
- Vaccine Refusal
- Interventions
- educational intervention
- Behavioral
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- Not listed
- Enrollment
- 510 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Vaccination, Vaccination Hesitancy, Vaccination Promotion, Psychological Aspects
- Interventions
- General Psych Trait Measure, Vaccine-Specific Psych Trait Measures
- Diagnostic Test · Other
- Lead sponsor
- University of Iowa
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,786 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2025
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Vaccine Hesitancy, COVID-19 Testing, Community Health Workers
- Interventions
- Community Health Worker led curriculum
- Behavioral
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 16 Years and older
- Enrollment
- 66 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 2
- States / cities
- Los Angeles, California
- Conditions
- Vaccine Hesitancy
- Interventions
- Storytelling, Learn More (Active Comparator)
- Behavioral
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 18 Years to 105 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- COVID-19
- Interventions
- Gist messages on COVID-19 vaccination, COVID-19 vaccine information
- Behavioral
- Lead sponsor
- George Washington University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 508 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Washington D.C., District of Columbia
- Conditions
- Covid19, Vaccine Refusal
- Interventions
- Community health worker engagement
- Behavioral
- Lead sponsor
- Tulane University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 56 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- New Orleans, Louisiana
- Conditions
- Influenza, Vaccine Hesitancy
- Interventions
- Text messaging
- Behavioral
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 6 Months and older
- Enrollment
- 228,831 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Vaccine Hesitancy
- Interventions
- INVEST
- Other
- Lead sponsor
- Duke University
- Other
- Eligibility
- Not listed
- Enrollment
- 2 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 2
- States / cities
- Durham, North Carolina • Columbia, South Carolina
- Conditions
- Vaccination Refusal, Communication
- Interventions
- Social Proof, Reframing, Scarcity Message
- Behavioral
- Lead sponsor
- Geisinger Clinic
- Other
- Eligibility
- Not listed
- Enrollment
- 9,566 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- Conditions
- Vaccine Hesitancy, Communicable Diseases in Children
- Interventions
- Community Event, Educational Material
- Behavioral
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 148 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2023
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania
- Conditions
- Vaccine Refusal
- Interventions
- Intervention, TBN
- Behavioral
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 15 Years to 26 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- COVID-19, Vaccine Refusal
- Interventions
- Text Message, Motivational Interviewing, Electronic Educational Message with Tailored Questions/Prompts
- Behavioral
- Lead sponsor
- University of Oklahoma
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 312 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Oklahoma City, Oklahoma
- Conditions
- Misinformation, Vaccine Hesitancy, Anxiety, Depression, COVID-19
- Interventions
- Attitudinal inoculation, Cognitive-behavioral therapy-informed intervention, Conventional public health messaging
- Behavioral
- Lead sponsor
- City University of New York, School of Public Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,419 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- New York, New York