The Medicines and Healthcare products Regulatory Agency (MHRA) has started the rolling review process of a coronavirus vaccine being developed by Moderna in the US, the company has announced.

This means the MHRA will review data as it becomes available from ongoing studies, before a formal application for approval is submitted.

By reviewing the data in this way, the regulator can reach an opinion sooner on whether the medicine or vaccine should be licensed in the UK.

In a statement, Moderna said: “This announcement follows positive results from a pre-clinical viral challenge study of mRNA-1273 and the positive interim analysis of the Phase 1 study of mRNA-1273 in adults (ages 18-55 years) and older adults (ages 56-70 and 71+) published in the New England Journal of Medicine.”

Stephane Bancel, chief executive officer of Moderna, said: “We appreciate the collaboration we have had to date with regulatory authorities around the world, and the process established by the MHRA to address this ongoing public health emergency.

“This is a great example of what’s being done to support efforts to deliver a safe and effective vaccine to UK citizens as safely and efficiently as possible.”

HEALTH Coronavirus(PA Graphics)

Interim analysis of phase one of the trial showed the vaccine, mRNA-1273, was generally well-tolerated across all age groups and induced rapid and strong immune responses against SARS-CoV-2, the virus which causes Covid-19.

The vaccine is in phase three trials with 30,000 participants.

Dr Christian Schneider, interim chief scientific officer at MHRA, said: “We are ready to prioritise and carry out a rolling review of data for candidate Covid-19 vaccines.

“We invite any company to submit licence applications for Covid-19 vaccines they anticipate requiring approval in the early part of 2021 to us as soon as they have relevant information.”

Stephen Evans, professor of pharmacoepidemiology at London School of Hygiene and Tropical Medicine, said: “Most major regulators have said that they will start to assess early data from the first phases of development of a vaccine.

“Though assessment of the early data has begun, it does not guarantee that this or any other vaccine will be available in 2020, but if the phase three results are good, then this unusual if not unprecedented approach will allow the vaccine to be available more quickly.

“It is entirely possible that other companies have been doing the same thing, either through the UK or other countries’ regulatory system, but they have possibly not felt it necessary to announce it publicly.”