NCT05612386

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
520,000

participants targeted

Target at P75+ for not_applicable covid19

Timeline
Completed

Started Nov 2022

Shorter than P25 for not_applicable covid19

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 3, 2022

Completed
Same day until next milestone

Study Start

First participant enrolled

November 3, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 10, 2022

Completed
28 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 8, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 6, 2023

Completed
Last Updated

March 3, 2023

Status Verified

March 1, 2023

Enrollment Period

1 month

First QC Date

November 3, 2022

Last Update Submit

March 1, 2023

Conditions

Keywords

COVID-19behavioral science interventionsvaccination promotion

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

EXPERIMENTAL

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.

Behavioral: COVID Booster text messages

Planning message recommending same time/location as last vaccination

EXPERIMENTAL

This condition will use a text message recommending the same time and location as the participant's last vaccination to get a COVID vaccination.

Behavioral: COVID Booster text messages

Interventions

Participants will receive text messages per descriptions listed in the arms.

Control condition with "waiting for you" messagePlanning message recommending same time/location as last vaccination

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

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
Model Details: Participants will be randomly assigned to the different arms.
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

Locations