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EU could approve shot against new coronavirus variant in 3-4 months

Tue, 30 Nov 2021   |  Reading Time: 2 minutes

By Ludwig Burger and Pushkala Aripaka

(Reuters) -The EU drug regulator said on Tuesday it could approve vaccines adapted to target the Omicron variant of the coronavirus within three to four months if needed, but that existing shots would continue to provide protection.

Speaking to the European Parliament, European Medicines Agency (EMA) executive director Emer Cooke said it was not known if drugmakers would need to tweak their vaccines to protect against Omicron, but the EMA was preparing for that possibility.

“Were there a need to change the existing vaccines, we could be in a position to have those approved within three to four months,” she said.

“Companies adapting their formulations to include the new sequencing (…) will then have to show that the production system works, they will then have to do some clinical trials to determine that this actually works in practice.”

EMA clarified in a separate statement that the review will start when the drugmakers decide they need to change the vaccine and begin work on that.

“We expect to receive smaller (data) packages which would reduce the evaluation time,” EMA said, based on guidance in place since February for any variant-specific vaccine upgrade.

The CEO of drugmaker Moderna had set off fresh alarm bells in financial markets on Tuesday by warning that existing vaccines were unlikely to be as effective against the Omicron variant, first detected in southern Africa, as they have been against the Delta version.

Forty-two cases of the COVID-19 Omicron variant have been confirmed in 10 European Union countries, the head of the EU’s public health agency said on Tuesday.

But Cooke sought to reaffirm repeated calls for people to get vaccinated with the approved products currently available.

“Even if the new variant becomes more widespread, the vaccines we have will continue to provide protection,” Cooke said.

Echoing previous remarks by vaccine maker BioNTech, Cooke said that laboratory analyses should indicate over the next two weeks whether the blood of vaccinated people has sufficient antibodies to neutralise the new variant.

In February, the EMA issued new guidance to speed up the approval process for drugmakers that modify their COVID-19 vaccines to protect against new variants.

Omicron shares several key mutations with two previous variants, Beta and Gamma, that made them less vulnerable to vaccines. In addition, Omicron has 26 unique mutations, many of them in regions targeted by vaccine antibodies.

BioNTech SE, partnering with Pfizer, said on Monday it had started work on a version of its established COVID-19 shot that is tailored to Omicron, though it was not yet clear if it was necessary.

Rival Moderna has also said it was working on a redesign of its COVID-19 vaccine for future booster shots.

(Reporting by Pushkala Aripaka in Bengaluru and Ludwig Burger in Frankfurt; Writing by Josephine Mason; Editing by Kevin Liffey and Ed Osmond)

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