107 completed, 27 unknown, 8 terminated, 5 not yet recruiting. 131 Not applicable, 1 Phase 4.
| Phase | Trials | Status |
|---|---|---|
| Not applicable | 131 | Completed 91, Unknown 16, Terminated 8, Active not recruiting 4, Not yet recruiting 4, Withdrawn 4, Recruiting 3, Suspended 1 |
| Phase 4 | 1 | Completed 1 |
Follow Vaccination Refusal: new trials by email Literature Review of Vaccination Refusal trials Research Report on Vaccination Refusal
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| Development and Evaluation of a Digital Educational Intervention to Improve Vaccine Confidence and Communication Among Registered Nurses: Protocol for a Randomized Controlled Trial (VaxNurse-RCT). Digital educational intervention - Vaccine Hesitancy, Vaccine Acceptance | Not applicable | Not yet recruiting | Universite du Quebec en Outaouais | 100 | 2027-01-01 | 2026-10-06 |
| Addressing COVID-19 Vaccine Hesitancy With Muliti-Level Interventions in Appalachia Health Communication, Health Communication + Structural - COVID-19, Vaccine Hesitancy | Not applicable | Withdrawn | Marc Kiviniemi | 2027-01-01 | 2026-11-06 | |
| Conversational AI for Adult Flu Vaccination Decisions Flu vaccination guide, Accident safety guide - Influenza, Human, Vaccine Hesitancy | Not applicable | Active not recruiting | Calypta Systems, Inc. | 220 | 2026-10-21 | 2026-11-04 |
| Intrahospital Influenza Vaccination in Patients at High Cardiovascular Risk (VACC-UP) Intrahospital seasonal influenza vaccination offer, Standardized active influenza vaccination counseling, Standard of care discharge recommendation for ambulatory vaccination - Acute Coronary Syndrome, Heart Failure | Not applicable | Recruiting | Stephan Baldus | 482 | 2026-09-30 | 2026-10-13 |
| Parents' Knowledge and Attitudes Towards Vaccinating Their Children questionnaire application - Vaccine Hesitancy | Not applicable | Not yet recruiting | Iuliu Hatieganu University of Medicine and Pharmacy | 200 | 2026-07-01 | 2026-06-29 |
| A Bio-Psycho-Social Medical Model-Based Study on Adolescent Female HPV Vaccination Behavior and Comprehensive Intervention the BPS-based comprehensive intervention - HPV, Vaccination Hesitancy | Not applicable | Not yet recruiting | The Children's Hospital of Zhejiang University School of Medicine | 300 | 2026-04-30 | 2026-05-01 |
| Media Orientation to Improve Childhood Vaccine Uptake and Address Parent and Caregivers Vaccine-related Anxiety: A Pilot Study ASSURed awareness campaign to encourage childhood vaccine uptakE (ASSURE) intervention, Intervention as usual - Anxiety, Vaccination Hesitancy | Not applicable | Not yet recruiting | Teesside University | 74 | 2026-04-20 | 2026-04-03 |
| Effect of Primary Care Education on Parents' Health-Related Perceptions and Attitudes Structured Education Program - Vaccine Hesitancy, Health Education | Not applicable | Completed | Yuzuncu Yil University | 173 | 2026-01-20 | 2026-04-29 |
| Effects of Individual and Group Education on Mothers' Attitudes and Decisions About Childhood Vaccination Vaccination attitude - Childhood Immunization | Not applicable | Completed | Istanbul University - Cerrahpasa | 81 | 2026-01-01 | 2026-11-13 |
| THE EFFECTS OF HPV VACCİNATİON AND MESSAGE FRAMİNG Gain-Framed HPV Vaccination Message, Loss-Framed HPV Vaccination Message - Human Papillomavirus Infection, HPV Vaccination | Not applicable | Completed | Ankara Medipol University | 177 | 2025-10-16 | 2026-11-04 |
| Effectiveness of SMS Nudging to Increase Coverage of Influenza Vaccination Among the Elderly Norwegian SMS, Polish/Ukrainian SMS - Influenza | Not applicable | Completed | Norwegian Institute of Public Health | 1000000 | 2025-10-14 | 2026-11-05 |
| Predicting Vaccine Hesitancy Using Machine Learning Vaccine Refusal, Vaccine Hesitancy | Completed | University of Yalova | 461 | 2025-07-02 | 2026-07-14 | |
| Community-Led COVID-19 Testing Intervention to Address Mistrust Community-led discussion - COVID-19, Trust | Not applicable | Completed | Old Dominion University | 49 | 2025-07-01 | 2026-09-11 |
| Improving Vaccine Acceptance Through EHR Integrated Patient- and Provider-Facing Decision Support LetsTalkShots (patient-facing CDS), LetsTalkShots (provider-facing CDS), Appointment Reminder Message - Vaccine Hesitancy, Vaccine Refusal | Not applicable | Completed | Johns Hopkins Bloomberg School of Public Health | 3600 | 2025-06-11 | 2026-09-04 |
| PREVENT Pilot HPV - Related Cancers Trial PREVENT - HPV Vaccination, Uptake Vaccination | Not applicable | Completed | University of Utah | 335 | 2025-05-17 | 2026-06-05 |
| Thimble Mindfulness App and Recovery Patch Descriptions Thimble Application - Needle Fear, Vaccine Hesitancy | Not applicable | Withdrawn | Bianca Edison | 2025-04-01 | 2025-04-30 | |
| Active Health Education to Increase HPV Vaccine Coverage in Youth: A Stepped-wedge, Cluster, and Randomized Trial Active Students Education plus Teacher Training, Active Students Education, Basic Health Unit Active Orientation - Vaccine Refusal, Vaccine Hesitancy | Not applicable | Recruiting | Hospital Israelita Albert Einstein | 5000 | 2025-03-24 | 2025-11-18 |
| Nursing Strategies to Increase Vaccination Rates in Adolescents: Education, Video Animation and Games intervention, active comparator - Health, Vaccination Hesitancy | Not applicable | Completed | Kahramanmaras Sutcu Imam University | 210 | 2025-03-03 | 2026-04-24 |
| Communication Strategies to Increase HPV Vaccinations HPV Message 1, HPV Message 2, HPV Message 3 - Papilloma Viral Infection, Vaccine Hesitancy | Not applicable | Active not recruiting | Abramson Cancer Center at Penn Medicine | 9002 | 2025-02-06 | 2026-09-24 |
| Vaccine Confidence Study Among Historically Marginalized Racial and Ethnic Groups Vaccine Hesitancy, Vaccine Refusal | Completed | Boston Medical Center | 68 | 2025-01-31 | 2026-07-13 |
Showing 20 of 160. Sign in to see all of them.
Vaccination Hesitancy (120) · COVID-19 (60) · Communication (14) · Influenza, Human (12) · Behavior (7) · Health Education (7) · Health Behavior (5) · Papillomavirus Infections (5) · Patient Acceptance of Health Care (5) · Pneumonia (4) · Vaccine-Preventable Diseases (4) · Coronavirus Infections (3) · Anxiety Disorders (2) · Neoplasms (2)
Treatment Adherence and Compliance (160) · Treatment Refusal (160) · Health Behavior (155) · Behavior (153) · Infections (75) · Virus Diseases (74) · RNA Virus Infections (69) · Respiratory Tract Diseases (66) · Respiratory Tract Infections (65) · Coronaviridae Infections (61) · Nidovirales Infections (61) · Lung Diseases (60) · Pneumonia, Viral (59) · Coronavirus Infections (58)
Surveys and Questionnaires (7) · Methods (6) · Motivational Interviewing (5) · COVID-19 Vaccines (1) · Cognitive Restructuring (1) · Communication Devices for People with Disabilities (1) · Community Health Workers (1) · Confidence Intervals (1) · Early Intervention, Educational (1) · Ecological Momentary Assessment (1) · Economics, Behavioral (1) · Educational Status (1) · Ethanol (1) · Focus Groups (1) · Health Communication (1)
Charles Drew University of Medicine and Science (4) · Duke University (4) · Johns Hopkins Bloomberg School of Public Health (4) · Chinese University of Hong Kong (3) · University of Massachusetts, Worcester (3) · University of Pennsylvania (3) · Yuzuncu Yil University (3) · Fondazione Policlinico Universitario Agostino Gemelli IRCCS (2) · Geisinger Clinic (2) · Meharry Medical College (2) · Old Dominion University (2) · Stanford University (2) · The University of Hong Kong (2) · Tulane University (2) · University of California, San Francisco (2)
United States (75) · Turkey (Türkiye) (15) · Canada (10) · France (6) · Hong Kong (6) · China (4) · United Kingdom (4) · Italy (3) · Germany (2) · Guatemala (2) · India (2) · Malaysia (2) · Pakistan (2) · Thailand (2) · Azerbaijan (1)
Deanna Kepka, PhD, MPH (2) · Delesha M Carpenter, PhD (2) · Geoffrey Curran, PhD (2) · Joseph T Wu, PhD (2) · Kelli J England, PhD (2) · Zeev Rosberger, PhD (2) · Aaron Scherer, PhD (1) · Abdullah Mbawah, Dr (1) · Abhijit Banerjee, PhD (1) · Abram L Wagner, PhD, MPH (1) · Alex Fiks, MD MSCE (1) · Alexis Koskan, Ph.D (1) · Alpha Mahmoud Barry, Dr (1) · Amira Badran, PhD (1)
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