- Initial results trialling seven vaccines expected in September to inform plans for booster programme
- Clinical trials on agenda for G7 Health Ministers’ Meeting in early June which Health Secretary announces will be hosted in Oxford
The Cov-Boost study, led by University Hospital Southampton NHS Foundation Trust and backed by £19.3 million of government funding through the Vaccines Taskforce, will trial seven vaccines and will be the first in the world to provide vital data on the impact of a third dose on patients’ immune responses.
The trial will look at seven different COVID-19 vaccines as potential boosters, given at least 10 to 12 weeks after a second dose as part of the ongoing vaccination programme. One booster will be provided to each volunteer and could be a different brand to the one they were originally vaccinated with.
Vaccines being trialled include Oxford/AstraZeneca, Pfizer/BioNTech, Moderna, Novavax, Valneva, Janssen and Curevac, as well as a control group. The trial has received ethics approval by the NHS Research Ethics Committee, as well as approval from the Medicines and Healthcare products Regulatory Agency.
Participants will be adults aged 30 years or older as these will have been those immunised early on in the vaccination programme – for example, adults aged 75 and over or health and care workers.
All participants will be monitored throughout the study for any side effects and will have bloods taken to measure their immune responses at days 28, 84, 308 and 365, with a small number having additional blood tests at other times. All sites will have an electronic diary for all participants that will send alerts to the team in real time if needed and a 24-hour emergency phone to a doctor on the study, who can provide further clinical advice.
The initial findings, expected in September, will help inform decisions by the Joint Committee on Vaccination and Immunisation (JCVI) on plans for a booster programme from autumn this year, ensuring the country’s most vulnerable are given the strongest possible protection over the winter period.
