- Conditions
- Cervical Cancer, Anal Cancer, Penile Cancer
- Interventions
- Personalized Chatbot Intervention, Non-Personalized Chatbot Intervention, No Chatbot Control
- Behavioral
- Lead sponsor
- University of Maryland, College Park
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 456 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023
- U.S. locations
- 1
- States / cities
- College Park, 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
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matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- 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
- COVID-19
- Interventions
- Culturally-Tailored COVID-19 Vaccine Uptake Intervention, Standard Care
- Behavioral
- Lead sponsor
- Nemours Children's Health System
- Other
- Eligibility
- Not listed
- Enrollment
- 5,792 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Wilmington, Delaware
- 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
- Health Behavior, Health Care Utilization, Vaccine Hesitancy
- Interventions
- Self-Affirmation Implementation Intentions (SAII) Intervention, Promotores de Salud (Health Education)
- Behavioral
- Lead sponsor
- University of Oregon
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 600 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Eugene, Oregon
- Conditions
- Covid-19 Vaccine, Vaccine Hesitancy
- Interventions
- Covid-19 vaccine education materials
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 541 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 7
- States / cities
- San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 1 more
- 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
- 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
- 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
- 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 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
- 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
- Human Papilloma Virus Vaccine Hesitancy
- Interventions
- Interviews
- Behavioral
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 9 Years to 75 Years
- Enrollment
- 176 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- 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
- 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
- COVID-19, Trust
- Interventions
- Community-led discussion
- Behavioral
- Lead sponsor
- Old Dominion University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 57 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Norfolk, Virginia
- Conditions
- Vaccine Hesitancy
- Interventions
- Video intervention along with educational hand out
- Other
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 155 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2014
- U.S. locations
- 2
- States / cities
- Franklin, Tennessee • Nashville, Tennessee
- Conditions
- Vaccine Hesitancy, Vaccine Refusal
- Interventions
- web-based survey
- Other
- Lead sponsor
- Children's Mercy Hospital Kansas City
- Other
- Eligibility
- Not listed
- Enrollment
- 1,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Kansas City, Missouri
- Conditions
- Vaccine Hesitancy
- Interventions
- Trusted Messenger
- Behavioral
- Lead sponsor
- Dartmouth-Hitchcock Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 2 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Concord, New Hampshire
- Conditions
- Vaccine Hesitancy
- Interventions
- EHR alert, Motivational Interviewing, Warm hand off to nurse
- Other · Behavioral
- Lead sponsor
- Boston College
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 3,698 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 2
- States / cities
- Boston, Massachusetts
- 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
- Needle Fear, Vaccine Hesitancy
- Interventions
- Thimble Application
- Device
- Lead sponsor
- Bianca Edison
- Other
- Eligibility
- 5 Years to 11 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Pneumonia, Influenza, Varicella Zoster, Meningitis, COVID-19, Vaccine Hesitancy
- Interventions
- Increasing Willingness and Uptake of Influenza, Pneumonia, Meningitis, HZV, and COVID-19 Vaccination
- Behavioral
- Lead sponsor
- Charles Drew University of Medicine and Science
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 400 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- 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