NCT03637036

Brief Summary

To reach seasonal vaccination against influenza targets, University Hospitals Birmingham (UHB) already invites staff to take up the vaccination, and every November reminds staff that have not yet vaccinated to do so. The current protocol describes a randomized controlled trial (RCT) in which staff will be sent different reminders, and the investigators will compare the proportion of staff that go on to vaccinate after receiving each reminder.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
8,438

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2018

Shorter than P25 for not_applicable

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

August 13, 2018

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 17, 2018

Completed
1 month until next milestone

Study Start

First participant enrolled

September 24, 2018

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 4, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 4, 2019

Completed
Last Updated

January 23, 2019

Status Verified

January 1, 2019

Enrollment Period

3 months

First QC Date

August 13, 2018

Last Update Submit

January 20, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Vaccination uptake

    Whether participants vaccinated (Yes, No)

    3 months

Secondary Outcomes (3)

  • Vaccination uptake date

    3 months

  • Vaccination uptake reflusal

    3 months

  • Vaccination uptake alternative location

    3

Other Outcomes (4)

  • Group number

    3 months

  • Worksite

    3 months

  • Job Role

    3 months

  • +1 more other outcomes

Study Arms (4)

Control Condition

OTHER

A general communication intervention will occur inviting staff to take up the influenza vaccination, without a specific authority or social norm designated.

Other: Communication intervention

Authority Condition

OTHER

A communication intervention will occur inviting staff to take up the influenza vaccination with a specific authority but not a social norm designated.

Other: Communication intervention

Norms Condition

OTHER

A communication intervention will occur inviting staff to take up the influenza vaccination with a social norm but not a specific authority designated.

Other: Communication intervention

Authority + Norms Condition

OTHER

A communication intervention will occur inviting staff to take up the influenza vaccination with a specific authority and a social norm designated.

Other: Communication intervention

Interventions

The intervention is a communication inviting staff to take up the influenza vaccination. Different versions of the communication are created, and the investigators will compare uptake rates between staff that received different letters.

Authority + Norms ConditionAuthority ConditionControl ConditionNorms Condition

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • All UHB staff eligible for the seasonal influenza vaccination are eligible for this study. (no patients are included)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospitals Birmingham NHS Foundation Trust (UHB)

Birmingham, B15 2GW, United Kingdom

Location

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Study Officials

  • Richard J Lilford

    University of Warwick

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants receive one of four types of communications inviting them to take up the influenza vaccination in a randomized fashion. Participants will not be explicitly told that alternative versions of the communications are being sent.
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Public Health

Study Record Dates

First Submitted

August 13, 2018

First Posted

August 17, 2018

Study Start

September 24, 2018

Primary Completion

January 4, 2019

Study Completion

January 4, 2019

Last Updated

January 23, 2019

Record last verified: 2019-01

Data Sharing

IPD Sharing
Will not share

Individual data will not be shared.

Locations