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Using Text Messages to Boost COVID-19 Vaccine Booking Rate

Primary Purpose

Vaccination Hesitancy, COVID-19

Status
Completed
Phase
Not Applicable
Locations
United Kingdom
Study Type
Interventional
Intervention
Behavioural science-informed text messages
Control
Sponsored by
The Behavioural Insights Team
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Vaccination Hesitancy

Eligibility Criteria

40 Years - 44 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria: (i) satisfying the age criteria as defined above; (ii) recorded in the National Immunisation Management System (NIMS); (iii) with a valid mobile phone number; (iv) who had not already received or been invited for the COVID-19 vaccine via NIMS at the time of the study. Exclusion Criteria: Participants with invalid phone numbers

Sites / Locations

  • NHS England

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm Type

Active Comparator

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Control

Simple

Reserved

Top of queue

Join the millions

Convenience

Protection against virus

Protect you and those close to you

Arm Description

Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."

Received the text message "You can now book your free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."

Received the text message "Your free NHS Covid-19 vaccine is waiting for you. Please book yours now at [LINK] or by calling 119."

Received the text message "You've reached the top of the queue and are a priority for getting a free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."

Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Join the millions who have already had theirs. Please book yours now at [LINK] or by calling 119."

Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Choose a time and place that suits you. Please book yours now at [LINK] or by calling 119."

Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Getting vaccinated is the best protection against coronavirus. Please book yours now at [LINK] or by calling 119."

Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Getting the vaccine is the best way to protect yourself and those close to you against coronavirus. Please book yours now at [LINK] or by calling 119."

Outcomes

Primary Outcome Measures

Booking rate within 72 hours
The proportion of first dose vaccination appointments booked through the NHS National Booking System within 72 hours (inclusive) of the text message being sent

Secondary Outcome Measures

Vaccination rate within 14 days
The proportion of first dose vaccinations received within 14 days (inclusive) of the text message being sent

Full Information

First Posted
August 11, 2023
Last Updated
August 11, 2023
Sponsor
The Behavioural Insights Team
Collaborators
Public Health England, Department of Health and Social Care, NHS England and NHS Improvement
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1. Study Identification

Unique Protocol Identification Number
NCT05993260
Brief Title
Using Text Messages to Boost COVID-19 Vaccine Booking Rate
Official Title
Using Text Messages to Boost COVID-19 Vaccination Appointment Booking and Vaccination Rates: A Randomised Controlled Field Trial.
Study Type
Interventional

2. Study Status

Record Verification Date
August 2023
Overall Recruitment Status
Completed
Study Start Date
April 26, 2021 (Actual)
Primary Completion Date
April 29, 2021 (Actual)
Study Completion Date
May 10, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
The Behavioural Insights Team
Collaborators
Public Health England, Department of Health and Social Care, NHS England and NHS Improvement

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
This study is a nationwide randomised controlled trial (RCT) to test the impact of behavioural science-informed text messages notifying patients of their eligibility for the COVID-19 vaccine on vaccination rates.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Vaccination Hesitancy, COVID-19

7. Study Design

Primary Purpose
Prevention
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare Provider
Allocation
Randomized
Enrollment
1825937 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Control
Arm Type
Active Comparator
Arm Description
Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."
Arm Title
Simple
Arm Type
Experimental
Arm Description
Received the text message "You can now book your free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."
Arm Title
Reserved
Arm Type
Experimental
Arm Description
Received the text message "Your free NHS Covid-19 vaccine is waiting for you. Please book yours now at [LINK] or by calling 119."
Arm Title
Top of queue
Arm Type
Experimental
Arm Description
Received the text message "You've reached the top of the queue and are a priority for getting a free NHS Covid-19 vaccine. Please book yours now at [LINK] or by calling 119."
Arm Title
Join the millions
Arm Type
Experimental
Arm Description
Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Join the millions who have already had theirs. Please book yours now at [LINK] or by calling 119."
Arm Title
Convenience
Arm Type
Experimental
Arm Description
Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Choose a time and place that suits you. Please book yours now at [LINK] or by calling 119."
Arm Title
Protection against virus
Arm Type
Experimental
Arm Description
Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Getting vaccinated is the best protection against coronavirus. Please book yours now at [LINK] or by calling 119."
Arm Title
Protect you and those close to you
Arm Type
Experimental
Arm Description
Received the text message "You are now eligible for your free NHS Covid-19 vaccine. Getting the vaccine is the best way to protect yourself and those close to you against coronavirus. Please book yours now at [LINK] or by calling 119."
Intervention Type
Behavioral
Intervention Name(s)
Behavioural science-informed text messages
Intervention Description
Behaviourally-informed content in vaccination eligibility reminder text messages
Intervention Type
Behavioral
Intervention Name(s)
Control
Intervention Description
Control vaccination eligibility reminder text message
Primary Outcome Measure Information:
Title
Booking rate within 72 hours
Description
The proportion of first dose vaccination appointments booked through the NHS National Booking System within 72 hours (inclusive) of the text message being sent
Time Frame
72 hours
Secondary Outcome Measure Information:
Title
Vaccination rate within 14 days
Description
The proportion of first dose vaccinations received within 14 days (inclusive) of the text message being sent
Time Frame
14 days

10. Eligibility

Sex
All
Minimum Age & Unit of Time
40 Years
Maximum Age & Unit of Time
44 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: (i) satisfying the age criteria as defined above; (ii) recorded in the National Immunisation Management System (NIMS); (iii) with a valid mobile phone number; (iv) who had not already received or been invited for the COVID-19 vaccine via NIMS at the time of the study. Exclusion Criteria: Participants with invalid phone numbers
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Hannah Behrendt, PhD
Organizational Affiliation
The Behavioural Insights Team
Official's Role
Principal Investigator
Facility Information:
Facility Name
NHS England
City
London
ZIP/Postal Code
SE1 8UG
Country
United Kingdom

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
All data requests should be submitted to NHS England and NHS Improvement (the data controller) for consideration. Access to the raw anonymised data may be granted for non-commercial research at the discretion of NHS England and NHS Improvement. Further information can be obtained from the corresponding author at hannah.behrendt@bi.team. Custom code that supports the findings of this study is available from the corresponding author upon request.

Learn more about this trial

Using Text Messages to Boost COVID-19 Vaccine Booking Rate

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