Planning Message Recommending Same Time/Location as Last Vaccine
1 other identifier
interventional
520,000
1 country
1
Brief Summary
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. The focal comparison in this experiment is between a message suggesting the same day of the week, at the same time of day, and at the same pharmacy location as their last vaccination 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 suggesting patients receive a shot on the same day of the week, at the same time of day, and at the same pharmacy location as their last vaccination will produce more vaccinations than otherwise identical messages.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable covid19
Started Nov 2022
Shorter than P25 for not_applicable covid19
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 3, 2022
CompletedStudy Start
First participant enrolled
November 3, 2022
CompletedFirst Posted
Study publicly available on registry
November 10, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 8, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
February 6, 2023
CompletedMarch 3, 2023
March 1, 2023
1 month
November 3, 2022
March 1, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
COVID bivalent booster receipt
Whether patients receive a bivalent COVID booster at the pharmacy in question
During the 30 days after receiving the SMS/MMS intervention
Secondary Outcomes (2)
COVID bivalent booster receipt
60 days after receiving the SMS/MMS intervention
COVID bivalent booster receipt
90 days after receiving the SMS/MMS intervention
Study Arms (2)
Control condition with "waiting for you" message
EXPERIMENTALThis 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.
Planning message recommending same time/location as last vaccination
EXPERIMENTALThis condition will use a text message recommending the same time and location as the participant's last vaccination to get a COVID vaccination.
Interventions
Participants will receive text messages per descriptions listed in the arms.
Eligibility Criteria
You may not qualify if:
- The patient unsubscribed from texts before the send date and time of the patient's SMS/MMS message
- The patient received a bivalent COVID booster before the send date and time of the patient's SMS/MMS message.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- CARE PROVIDER, OUTCOMES ASSESSOR
- Masking Details
- As treated participants will receive text messages, there is no scope for blinding. Care providers will not be made aware of subjects' participation in the study, or assigned treatment arms. The study team will only receive data on subjects' assigned arms and outcomes at the end of the study.
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 3, 2022
First Posted
November 10, 2022
Study Start
November 3, 2022
Primary Completion
December 8, 2022
Study Completion
February 6, 2023
Last Updated
March 3, 2023
Record last verified: 2023-03
Data Sharing
- IPD Sharing
- Will not share