CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 19,554 enrolled
Drug / intervention
Opt-In (Call-Back) +6 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.

Search/NCT04834726
NCT04834726N/ACompleted

Pragmatic Trial of COVID Vaccine Text Outreach Interventions

University of Pennsylvania·interventional·Posted Apr 8, 2021·Updated Mar 27, 2023

In Brief

A clinical study evaluating Opt-In (Call-Back), Opt-in (In-Bound), and 5 other interventions for Covid19. Completed, enrolled 19,554 participants across 1 site.

Detailed Summary

This project aims to evaluate different approaches to increase COVID-19 vaccine uptake among at-risk patients at Penn Medicine in an equitable and systematic manner through a centralized outreach program. The investigators will evaluate different text-based scheduling and messaging approaches informed by behavioral science to increase uptake among eligible patients, including the use of clinician endorsement, opt-out framing, and scarcity.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsCovid19
CountriesUnited States
Collaborators--

Timeline

N/ACompletedFinished
20222023202420252026
First PostedApr 8, 2021
Enrollment StartApr 29, 2021
Primary CompletionJun 4, 2021
Study CompletionJul 6, 2021
TodayJul 2, 2026
Enrollment to primary: 1 monthPosted 5.2 years ago

Interventions

Opt-In (Call-Back)behavioral

Messaging will include a prompt to agree to scheduling. If patient agrees, the access center will call these patients back to schedule, calling up to 3 times.

Opt-in (In-Bound)behavioral

Messaging will include a prompt to agree to scheduling followed by a prompt to call the Penn Medicine Vaccine Scheduling Hotline to schedule their vaccine appointment.

Standard Messagebehavioral

The message describes that the patient is eligible for the COVID vaccine.

Clinician Endorsementbehavioral

The message will describe an endorsement from the provider to get the vaccination.

Scarcitybehavioral

The message will highlight the limited availability and the elevated priority for the patient to receive the vaccine at Penn Medicine.

Opt-Out Framingbehavioral

This will highlight that a vaccine is reserved for the patient, implying that they need to opt-out.

Phone Callbehavioral

The access center will call these patients to schedule their vaccine appointment. These patients will not receive text messaging.