- 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
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Showing 25–48
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- Conditions
- Vaccination, Wastewater Surveillance
- Interventions
- Wastewater vaccine prompts
- Behavioral
- Lead sponsor
- Syracuse University
- Other
- Eligibility
- Not listed
- Enrollment
- 100,000 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Syracuse, New York
- 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
- Coronavirus
- Interventions
- Survey research
- Other
- Lead sponsor
- East Carolina University
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 632 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Greenville, North Carolina
- Conditions
- Vaccination
- Interventions
- Informational Animation Video, Personal Narrative Video
- Behavioral
- Lead sponsor
- Johns Hopkins Bloomberg School of Public Health
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 6,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
- Interventions
- Reminder, Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
- Behavioral
- Lead sponsor
- National Bureau of Economic Research, Inc.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 45,061 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- Conditions
- Human Papilloma Virus
- Interventions
- HPV Educational Intervention
- Behavioral
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2028
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- 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
- Conditions
- Vaccination, COVID-19
- Interventions
- Control message, Baseline message, Personal freedom message, Economic freedom message, Self-interest message, Community interest message, Economic benefit message, Guilt message, Embarrassment message, Anger message, Trust in science message, Not bravery message
- Other
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 4,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Rheumatologic Disease, Autoimmune Diseases
- Interventions
- Video comprised of AIRD patient narratives on COVID-19 vaccination thoughts and experiences, Video on the importance of good oral health for patients with AIRD, Brochure on COVID-19 vaccination in AIRD patients, Patient Navigation, Brochure on the importance of good oral health in AIRD patients
- Behavioral
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,170 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2028
- U.S. locations
- 3
- States / cities
- Birmingham, Alabama • Boston, Massachusetts • Worcester, Massachusetts
- Conditions
- COVID-19, Vaccine
- Interventions
- REDES, Control
- Behavioral
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 900 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Covid19
- Interventions
- Opt-In (Call-Back), Opt-in (In-Bound), Standard Message, Clinician Endorsement, Scarcity, Opt-Out Framing, Phone Call
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 16 Years and older
- Enrollment
- 19,554 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Influenza, Human, COVID-19
- Interventions
- Comirnaty, Quadrivalent Influenza Vaccine
- Biological
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 3,442,996 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Immunization, Vaccination
- Interventions
- STOP-HPV communication intervention
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 11 Years to 17 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Itasca, Illinois
- 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
- Covid-19 Vaccination
- Interventions
- Vaccine choice message, Vaccine choice + platform-framed message, Vaccine choice + HCP trust-framed message, Vaccine choice + reactogenicity-framed message
- Behavioral
- Lead sponsor
- Kaiser Permanente
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,300,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Pasadena, California
- Conditions
- Vaccine Uptake
- Interventions
- Communication Campaign
- Behavioral
- Lead sponsor
- Syracuse University
- Other
- Eligibility
- Not listed
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Syracuse, New York
- Conditions
- COVID-19 Pandemic
- Interventions
- Tri-City COVID Attitudes Study
- Behavioral
- Lead sponsor
- University of Kansas Medical Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 295 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- HPV-Related Cervical Carcinoma
- Interventions
- Educational video, Educational handout, Control
- Other
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 12 Years to 26 Years · Female only
- Enrollment
- 256 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Covid19, Influenza, Pneumonia, Vaccine Refusal
- Interventions
- Full VEPMP Intervention, Partial VEPMP Intervention, Delayed VEPMP Intervention
- Behavioral
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 65 Years and older
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2026
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Human Papilloma Virus
- Interventions
- Health Messaging via SMS, CDC Health Pamphlets
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 21 Years and older · Female only
- Enrollment
- 3 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- HPV Vaccination, Uptake Vaccination, Series Completion
- Interventions
- PREVENT
- Behavioral
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 335 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Diabetes, COVID-19, Community Health Workers, Health Behavior, Health Knowledge, Attitudes, Practice
- Interventions
- Impact of Community Health Worker Home Deployment on COVID-19 Vaccine Confidence and Uptake
- Behavioral
- Lead sponsor
- Morehouse School of Medicine
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 87 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2025
- U.S. locations
- 1
- States / cities
- Albany, Georgia
- 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