Use of Construal Level Theory to Inform Messaging to Increase Vaccination Against COVID-19

Completed · Not applicable

Conditions studied: Covid19, Vaccine Refusal

In brief

This study aims to increase uptake of the COVID booster vaccine through messaging informed by Construal Level Theory. Patients in the Mass General Brigham (MGB) health system aged 18 and older who are eligible for the COVID booster vaccine, but who have not yet received a dose at the time of an upcoming primary care clinic visit, will be randomized to one of three messaging arms: 1) "why" messaging, 2) "how" messaging, or 3) standard of care ("usual care"). Messages will be sent via the electronic patient portal a few days in advance of their office visit. The primary outcome will be the rate of booster vaccination at the targeted visit. The secondary outcome will be the rate of receipt of a COVID booster vaccine within 6 weeks of the targeted visit. Subgroup analyses to assess for any association of patient characteristics with intervention responsiveness will be exploratory.

Key facts

Study ID

NCT04871776

Run by

Brigham and Women's Hospital

People needed

3671

Starts

2022-02-18

Expected to finish

2022-08-17

Last updated by the study team

2024-01-16

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients in the Mass General Brigham system
• Aged 18 and older
• Are eligible for the COVID booster vaccine but have not received a dose at time of upcoming primary care clinic visit

You may not qualify if…

• Documented allergy to a COVID vaccine or its components
• Home address outside of Massachusetts
• Did not receive full set of primary COVID-19 vaccination series

Where it is running

• Mass General Brigham — Boston, Massachusetts, United States

Full record on ClinicalTrials.gov

Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.