- 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
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 69
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Hepatitis B Virus
- Interventions
- Non-Framed-Offered, Non-Framed-Recommended, Gain-Framed-Offered, Gain-Framed-Recommended, Loss-Framed-Offered, Loss-Framed-Recommended
- Behavioral
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,747 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2003 – 2007
- U.S. locations
- 2
- States / cities
- Chicago, Illinois • Indianapolis, Indiana
- Conditions
- COVID-19
- Interventions
- COVID Booster text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 2,600,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Immunization Programs
- Interventions
- Reminder
- Behavioral
- Lead sponsor
- Geisinger Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,186 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Interventions
- Reminder, Financial incentive, Lottery
- Behavioral
- Lead sponsor
- National Bureau of Economic Research, Inc.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 57,581 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
- Human Papilloma Virus
- Interventions
- Health Education Session
- Behavioral
- Lead sponsor
- MEE Productions, Inc.
- Other
- Eligibility
- Female only
- Enrollment
- 240 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Influenza
- Interventions
- Alert, Salient alert features, High-risk Text, Risk factors
- Behavioral
- Lead sponsor
- Geisinger Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80,452 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Danville, Pennsylvania
- 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
- 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
- Influenza Vaccination
- Interventions
- Question (Q), Messaging (M)
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 776 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2023
- U.S. locations
- 8
- States / cities
- San Francisco, California • Durham, North Carolina • Philadelphia, Pennsylvania + 2 more
- 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
- Vaccination, Vaccination Promotion
- Interventions
- Exposure to source and message content
- Behavioral
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 700 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- 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
- Influenza
- Interventions
- Text Message, automated call
- Other
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 6 Months to 50 Years
- Enrollment
- 30,537 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Influenza, Human
- Interventions
- Reminder
- Behavioral
- Lead sponsor
- Geisinger Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 77,482 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Danville, 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
- HPV Vaccination, Uptake Vaccination, Series Completion
- Interventions
- PREVENT
- Behavioral
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,455 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Human Papilloma Virus
- Interventions
- Usual Care, ECA-HPV App with Clinic Notification and Adolescent Functions Disabled, ECA-HPV App with Clinic Notification Function Enabled, ECA-HPV App with Adolescent Function Enabled, ECA-HPV App with Clinic Notification and Adolescent Functions Enabled
- Behavioral
- Lead sponsor
- Tufts Medical Center
- Other
- Eligibility
- 8 Years to 12 Years
- Enrollment
- 29 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- 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
- 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
- N/A - Healthy Subjects
- Interventions
- short videos related to HPV and the HPV vaccine, CDC HPV Fact Sheet
- Other
- Lead sponsor
- Michigan State University
- Other
- Eligibility
- 18 Years to 26 Years
- Enrollment
- 123 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2026
- U.S. locations
- 1
- States / cities
- East Lansing, Michigan
- 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