Novavax offering vaccine to all trial participants at Wansford Surgery near Stamford
People who signed up to the Novavax trial at Wansford Surgery have been told they will be fully vaccinated in the next few weeks, even if they had a 'placebo' jab.
In the trial by American firm Novavax, people received either two doses of the vaccine at the end of last year, or two doses of saline.
Participants were not told which they received to ensure their reactions were not influenced.
Because many trial participants are now being offered the Pfizer or Oxford-AstraZeneca vaccine at their GP surgery or a larger vaccination centre, and are concerned they have only had a placebo, Novavax has said it will reverse its original trial.
This means that rather than finding out if they had the vaccine or placebo - known as being 'unblinded' in a clinical trial - participants who had received the placebo will receive the Novavax vaccine, and vice versa. As before, they will not know which they are receiving.
In a letter to participants, the Novavax study team said: "Your continued participation in this study in this way will not only ensure you receive a Novavax vaccine but also assist in maintaining the integrity of this important study."
In its UK trial which involved 15,000 people and included the use of Wansford Surgery as a centre, the Novavax vaccine has demonstrated 89.3 per cent efficacy based on interim results.
The UK has ordered 60m doses of the Novavax vaccine at a cost of £12 per dose and these will be manufactured at Fujifilm Diosynth Biotechnologies in Stockton-on-Tees.
The Novavax vaccine can be stored in a normal fridge before use.