The Leeds Teaching Hospitals NHS Trust

Research and Innovation

Study to evaluate COVID-19 Vaccine Boosters (COV-Boost) study with Young Adults

24 January 2022

We are looking for volunteers to take part in a study looking at the use of different COVID-19 vaccines and doses for giving a third dose. This study is being run by Leeds Teaching Hospitals NHS Trust, and is sponsored by University Hospital Southampton NHS Foundation Trust.

You may be eligible to take part in the study if you:

  • Are aged 18-30 years old
  • Received 2 doses of BNT162b2 (Pfizer) or mRNA-1273 (Moderna) and are at least 3 months (84 days) since your second dose
  • Have not yet received a booster

We will provide reimbursement up to £225 for your time, inconvenience and travel (depending on the total number of visits you attend). The total study participation time is up to 8 months.

If you are interested in finding out more, please visit our website: Home | COV-Boost ( where you can also complete the pre-screening questionnaire to see if you will be eligible.

If you would like any further information regarding the study, please contact us on: 


Telephone: 07425 628243