- Conditions
- Human Papilloma Virus, Tdap - Tetanus, Diphtheria and Acellular Pertussis Vaccination, Meningitis, Meningococcal, Communication, Satisfaction
- Interventions
- AFIX Only, AFIX+ Provider Communication Training
- Behavioral
- Lead sponsor
- Children's Mercy Hospital Kansas City
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 225 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Kansas City, Missouri
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 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Influenza Vaccination, Health Promotion, Health Behavior, Risk Reduction
- Interventions
- Letter, Patient portal, SMS
- Behavioral
- Lead sponsor
- Geisinger Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 43,225 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- Conditions
- COVID-19
- Interventions
- COVID Booster text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 520,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Covid19, Vaccines
- Interventions
- Self-benefit, Prosocial-benefit, Early access, Fresh start
- Behavioral
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 250,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Westwood, Los Angeles, California
- Conditions
- HPV Infection, Vaccine-Preventable Diseases
- Interventions
- HPV game
- Behavioral
- Lead sponsor
- Michigan State University
- Other
- Eligibility
- 11 Years to 14 Years
- Enrollment
- 133 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2026
- U.S. locations
- 1
- States / cities
- East Lansing, Michigan
- Conditions
- Influenza, Human
- Interventions
- Flu shot text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 74,811 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 2
- States / cities
- Danville, Pennsylvania • Philadelphia, Pennsylvania
- Conditions
- HPV Vaccination
- Interventions
- multi-channel communication campaign to promote HPV vaccination
- Behavioral
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 15 Years to 18 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Lafayette, Alabama
- 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
- Interventions
- Vaccine Messaging, Vaccine Acceptance Question
- Behavioral
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 919 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 7
- States / cities
- San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 1 more
- 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
- Women's Stories
- Behavioral
- Lead sponsor
- Real Prevention, LLC
- Industry
- Eligibility
- 18 Years to 26 Years · Female only
- Enrollment
- 360 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2021
- U.S. locations
- 7
- States / cities
- Irvine, California • Chicago, Illinois • St Louis, Missouri + 3 more
- 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
- Whooping Cough
- Interventions
- Full price, $5 off
- Other
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 149 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- COVID-19
- Interventions
- COVID Booster text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 300,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Up-to-date Immunization Status for Children in Child Care
- Interventions
- Intervention child care programs
- Behavioral
- Lead sponsor
- University of Utah
- Other
- Eligibility
- Not listed
- Enrollment
- 107 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- 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
- Vaccination Hesitancy
- Interventions
- Standard MI, Intensive MI, MOTIVACC, Ecological momentary assessment (EMA) messages
- Behavioral
- Lead sponsor
- Oklahoma State University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 2
- States / cities
- Oklahoma City, Oklahoma • Stillwater, Oklahoma
- Conditions
- Human Papilloma Virus, Human Papilloma Virus Vaccine
- Interventions
- CDC 4 Pillars Program
- Behavioral
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 267 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2028
- U.S. locations
- 4
- States / cities
- Albany, Georgia • Atlanta, Georgia • Lithonia, Georgia
- 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
- Human Papillomavirus Vaccines
- Interventions
- Project Voice
- Behavioral
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 737 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Pandemics
- Interventions
- ECA-ACE Vaccination Promotion Intervention
- Behavioral
- Lead sponsor
- Northeastern University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 600 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2025
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Human Papillomavirus-Related Carcinoma
- Interventions
- Best Practice, Educational Intervention, Health Promotion and Education, Internet-Based Intervention
- Other
- Lead sponsor
- Emory University
- Other
- Eligibility
- 9 Years and older
- Enrollment
- 1,836 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2028
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- 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
- Human Papillomavirus
- Interventions
- Conventional text message reminder, Enhanced text message reminders
- Behavioral
- Lead sponsor
- Columbia University
- Other
- Eligibility
- Not listed
- Enrollment
- 956 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- New York, New York