Not applicableStudy completedNCT04813770What this trial is testingThe Impact of Theory-based Messaging on Covid-19 Vaccination IntentionsWho this might be right forVaccinationCovid19 University of Glasgow 1,113
Not applicableStudy completedNCT06698497What this trial is testingBoosting COVID-19 Vaccination Uptake Using Wastewater SurveillanceWho this might be right forVaccine Uptake Syracuse University 40
Not applicableStudy completedNCT05085613What this trial is testingDoes Framing and Humor Improve the Effectiveness of Messages About COVID-19 VaccineWho this might be right forBeliefs Johns Hopkins Bloomberg School of Public Health 100
Not applicableStudy completedNCT05252936What this trial is testingEffectiveness of a Mayan Language Social Media Campaign on COVID-19 Vaccine Beliefs in GuatemalaWho this might be right forVaccination Refusal Stanford University 5,000
Not applicableStudy completedNCT05107479What this trial is testingEffectiveness of Interactive Voice Response for COVID-19 Vaccination Training in the Democratic Republic of the CongoWho this might be right forCOVID-19 Vaccine KnowledgeCOVID-19 Vaccine Beliefs Stanford University 8,959