Message Encouraging Vaccination in Preparation for the Holidays

University of Pennsylvania

Status: Completed

Conditions: COVID-19

Treatments: Behavioral: COVID Booster text messages

Study type: Interventional

Funder types: Other

Identifiers

NCT05612360

851911-Trial B

Details and patient eligibility

About

This experiment is part of a megastudy with a total of ten experimental conditions and a holdout control condition to which patients will be randomly assigned. Ther focal comparison in this experiment is between a message encouraging vaccination by reminding participants that the holiday season is just a few weeks away and getting vaccinated will allow them to more safely gather with loved ones and a control message telling patients that an updated COVID booster vaccine is waiting for them. The intervention testing if text messages encouraging vaccination by reminding participants that the holiday season is just a few weeks away and getting vaccinated will allow them to more safely gather with loved ones will produce more vaccinations than otherwise identical messages.

Enrollment: 520,000 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Exclusion Criteria:

1. The patient unsubscribed from texts before the send date and time of the patient's SMS/MMS message
2. The patient received a bivalent COVID booster before the send date and time of the patient's SMS/MMS message.

Trial design

Primary purpose: Health Services Research

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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520,000 participants in 2 patient groups

Control condition with "waiting for you" message

Experimental group

Description:

This control condition will use the text message that the investigators found to be the best performing in their last mega-study of vaccine text messages to recommend a COVID vaccination.

Treatment:

Behavioral: COVID Booster text messages

Message encouraging vaccination in preparation for the holidays

Experimental group

Description:

This condition will use a text message to encourage a COVID vaccination in preparation for the holidays.

Treatment:

Behavioral: COVID Booster text messages