Clinical trials: Vaccination Promotion
Pneumococcal Infections, Immunization Programs
Randomized Controlled Trial Of Text Messages To Increase Pneumococcal Vaccination In Adults In Chile.
The goal of this randomized controlled trial is to learn if text message reminders sent through WhatsApp increase pneumococcal vaccination coverage in adults turning 65 years old in Chile.
- Conditions
- Pneumococcal Infections, Immunization Programs, Vaccination Coverage, Text Messaging (Intervention)
- Trial name
- PNEUMO-SMS (NCT07659470)
- Testing
- WhatsApp text message reminder for pneumococcal vaccination
- Where
- Chile
- Volunteers
- 40,753 people, healthy volunteers welcome
- Sponsor
- Pablo Tomás Valenzuela García
Influenza, Vaccination
Rule-Based High-Risk Flu
Previous work by the study team has shown that informing patients of their high risk of flu and flu-related complications increases their likelihood of getting a flu shot (Rosenbaum et al., 2026).
- Conditions
- Influenza, Vaccination, Risk Reduction, Health Behavior
- Trial name
- NCT07798882
- Testing
- Risk reduction
- Where
- United States
- Volunteers
- 51,218 people
- Sponsor
- Geisinger Clinic
Vaccination, Vaccination Promotion
ARISe at UMass Chan
The goal is to identify the most impactful strategies for capturing attention and enhancing effectiveness of vaccine promotion messages.
- Trial name
- ARISe (NCT07236034)
- Testing
- Exposure to source and message content
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- University of Massachusetts, Worcester
Anxiety, Vaccination Hesitancy
Media Orientation to Improve Childhood Vaccine Uptake and Address Parent and Caregivers Vaccine-related Anxiety: A Pilot Study
Vaccine hesitancy-defined as delayed acceptance or refusal of vaccines despite availability-remains a significant barrier to childhood immunisation uptake in Nigeria, a country with high zero-dose unvaccinated children.
- Conditions
- Anxiety, Vaccination Hesitancy, Vaccination Promotion, Vaccine Decision Making
- Trial name
- NCT07510230
- Testing
- ASSURed awareness campaign to encourage childhood vaccine uptakE (ASSURE) intervention, Intervention as usual
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Teesside University
Vaccination, Vaccination Hesitancy
Comparing Relative Strengths of Statistical Associations Between Psychological Traits and Vaccination-Related Outcomes I
The goal of this study was to identify psychological motives that had the strongest statistical associations with vaccine outcomes in order to identify novel intervention targets to be used in vaccine promotion efforts.
- Conditions
- Vaccination, Vaccination Hesitancy, Vaccination Promotion, Psychological Aspects
- Trial name
- NCT07172074
- Testing
- General Psych Trait Measure, Vaccine-Specific Psych Trait Measures
- Where
- United States
- Volunteers
- 1,786 people, healthy volunteers welcome
- Sponsor
- University of Iowa
Influenza, Vaccination
Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake
The study team previously demonstrated that patients are more likely to receive flu vaccine after learning that they are at high risk for flu complications.
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Trial name
- NCT05009251
- Testing
- Reminder, Risk reduction, Medical records-based recommendation
- Where
- United States
- Volunteers
- 45,061 people
- Sponsor
- National Bureau of Economic Research, Inc.
Influenza, Vaccination
Encouraging Flu Vaccination Among High-Risk Patients Identified by ML
The purpose of the current study is to test different interventions to determine the most effective way to promote flu vaccine uptake in a high-risk population identified by an "artificial intelligence" (AI) or machine learning…
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Trial name
- NCT04323137
- Testing
- Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
- Where
- United States
- Volunteers
- 117,649 people
- Sponsor
- Geisinger Clinic
Influenza, Vaccination
Lottery Incentive Nudges to Increase Influenza Vaccinations
In the current study, the study team will explore whether small incentives are effective at promoting flu vaccine uptake. The study is designed to compare the relative efficacy of incentives of equal perceived expected value (EV)…
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Trial name
- NCT05012163
- Testing
- Reminder, Financial incentive, Lottery
- Where
- United States
- Volunteers
- 57,581 people
- Sponsor
- National Bureau of Economic Research, Inc.
Vaccination Promotion
MOTIVAC-MATER-Confiance
CONTEXT Vaccination has reduced mortality and morbidity by controlling many vaccine-preventable diseases. To prevent recurrence of these diseases, high vaccine coverages (VCs) (≥ 95%) are needed.
- Trial name
- NCT05093452
- Testing
- Motivational Interviewing, Information flyer
- Where
- 2 sites in France
- Volunteers
- 736 people, healthy volunteers welcome
- Sponsor
- Observatoire Regional de la Sante Provence-Alpes-Côte d'Azur
Influenza, Vaccination
Nudging Flu Vaccination in Patients at Moderately High Risk for Flu and Flu-related Complications
This study will test the relative efficacy of high-risk messages in increasing flu shot rates in patients at moderately high risk for flu and complications (those in the top 11-20% of risk).
- Conditions
- Influenza, Vaccination, Health Promotion, Health Behavior
- Trial name
- NCT05509283
- Testing
- Risk Reduction
- Where
- United States
- Volunteers
- 40,671 people
- Sponsor
- Geisinger Clinic
Influenza Vaccination, Health Promotion
Efficacy of Communication Modalities for Promoting Flu Shots
The purpose of this study is to test which modalities (mailed letter, short message service [SMS] text, or patient portal messages) are most effective for encouraging flu shots in high-risk patients.
- Conditions
- Influenza Vaccination, Health Promotion, Health Behavior, Risk Reduction
- Trial name
- NCT05509270
- Testing
- Letter, Patient portal, SMS
- Where
- United States
- Volunteers
- 43,225 people
- Sponsor
- Geisinger Clinic
Vaccination Promotion
PROMOtion of VAccination in Canada (PromovaC Study)
Synopsis: In most countries, there is an increase in the number of parents who refuse some, most or all vaccines or who adopt delayed vaccination schedule.
- Trial name
- PromovaC (NCT02984007)
- Testing
- Motivational Interviewing, Information flyer
- Where
- 6 sites in Canada
- Volunteers
- 667 people, healthy volunteers welcome
- Sponsor
- Université de Sherbrooke