At a glance
ClinicalIndex Comparison RecordN/ACompleted· 9,566 enrolled
Drug / intervention
Social Proof +2 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Evaluation of an Email Intervention Promoting COVID-19 Vaccination Among Healthcare Workers
In Brief
A clinical study evaluating Social Proof, Reframing, and 1 other intervention for Vaccination Refusal and Communication. Completed, enrolled 9,566 participants across 1 site.
Detailed Summary
In this evaluation, two versions of emails will be sent to Geisinger employees who have not been vaccinated against COVID-19. A delayed-contact control group will be emailed after a delay of at least two days. The researchers hypothesize that either of the emails - which use content informed by behavioral nudge theory - will lead to more COVID-19 vaccinations than the delayed-contact control group.
Study Details
Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsVaccination Refusal, Communication
CountriesUnited States
Collaborators--
Timeline
N/ACompletedFinished
202120222023202420252026
Enrollment StartJan 2021
Primary CompletionJan 2021
Study CompletionJan 2021
First PostedJan 2021
TodayJul 2026
First PostedJan 28, 2021
Enrollment StartJan 15, 2021
Primary CompletionJan 17, 2021
Study CompletionJan 20, 2021
TodayJul 2, 2026
Enrollment to primary: 2 daysPosted 5.4 years ago
Interventions
Social Proofbehavioral
Reframingbehavioral
Scarcity Messagebehavioral