- Conditions
- Covid19, Vaccine Refusal
- Interventions
- Behavioral economics
- Behavioral
- Lead sponsor
- VA Puget Sound Health Care System
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 4,311 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Seattle, Washington
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 25–48
of 74
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Vaccine Refusal, Vaccine-Preventable Diseases, Physician-Patient Relations
- Interventions
- Immersive resident education, Standardized patient (SP) encounter
- Other
- Lead sponsor
- Corewell Health East
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 112 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Royal Oak, Michigan
- 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
- Vaccination Refusal, Covid19, Heart Diseases
- Interventions
- Online Social Network and Collective Intelligence Intervention, Independent Control
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 4,476 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, 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 Vaccines
- Interventions
- High touch multi-pronged behavioral intervention
- Behavioral
- Lead sponsor
- Brown University
- Other
- Eligibility
- Not listed
- Enrollment
- 23,768 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 4
- States / cities
- Tampa, Florida • Sykesville, Maryland • Elkhorn, Nebraska + 1 more
- Conditions
- Vaccination Hesitancy, Human Papillomavirus Vaccination, Vaccine Refusal
- Interventions
- Argument inoculation messages, Simple forewarning message
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 523 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Vaccination Refusal, COVID-19
- Interventions
- Factual messages, Narrative message, Mixed message
- Behavioral
- Lead sponsor
- Johns Hopkins Bloomberg School of Public Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 2,409 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Behavior, Intention
- Interventions
- mandate public, employer mandate, incentive reward, penalty, incentive lottery small, incentive lottery medium, incentive lottery large, cash small, cash medium, cash large, invitation for exercise financial incentive study, invitation for exercise social incentive study, invitation for sleep social incentive study, invitation for sleep financial incentive
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 4,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Coronavirus, Vaccine Refusal
- Interventions
- Increasing Willingness and Uptake of COVID-19 Vaccination
- Behavioral
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 462 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2024
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Sickle Cell Disease, COVID-19 Vaccine, Vaccine Hesitancy
- Interventions
- SCD-specific COVID-19 vaccination information (SCVI) video
- Behavioral
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Vaccination Refusal, COVID-19
- Interventions
- Short Message Service (SMS) + Website Link Strategy, Phone Call with Peer Strategy
- Other
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- Not listed
- Enrollment
- 262 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 8
- States / cities
- Hazelwood, Missouri • Jennings, Missouri • Saint Ann, Missouri + 2 more
- 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
- COVID-19
- Interventions
- Standard implementation webinar and online training, Virtual facilitation
- Behavioral
- Lead sponsor
- University of North Carolina, Chapel Hill
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina
- Conditions
- Vaccination Refusal
- Interventions
- Group intervention
- Behavioral
- Lead sponsor
- MultiCare Health System Research Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 429 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Puyallup, Washington
- 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
- 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
- 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
- Vaccine Hesitancy
- Interventions
- Multilevel Intervention
- Behavioral
- Lead sponsor
- San Diego State University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 238 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 2
- States / cities
- San Diego, California
- 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
- COVID-19, Vaccine Hesitancy
- Interventions
- Vaccine Norms Feedback, Alcohol Norms Feedback
- Behavioral
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years to 24 Years
- Enrollment
- 600 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- 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
- HPV Vaccination, Vaccine; Uptake, Vaccination; Series Completion
- Interventions
- PREVENT - BCT
- Behavioral
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 18 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Vaccine-Preventable Diseases, COVID-19 Pandemic, Health-Related Behavior, Health Knowledge, Attitudes, Practice, Narration
- Interventions
- Baseline surveys, Digital Storytelling Intervention, Information Control Intervention
- Behavioral
- Lead sponsor
- Arizona State University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Phoenix, Arizona