EU regulator set to rule on Pfizer Covid pill by end-Jan, ahead of Merck

The European Union’s drug regulator is set to decide whether to approve Pfizer’s COVID-19 pill at the end of this month, before doing a final review of Merck’s similar but less effective drug in February, a source with knowledge of the matter said.

Late last year, the European Medicines Agency (EMA) gave guidance to member states on how to use both antiviral pills as emergency treatments, while it carried out rolling reviews to help member states decide on quick adoption ahead of any formal EU-wide approval.

The EU watchdog said the panel of experts reviewing new drugs was meeting from Monday until Thursday this week “with the objective to conclude the evaluation, if possible” of Pfizer’s (PFE.N) Paxlovid treatment.

“We would communicate it towards the end of this week,” it added.

Italy, Germany and Belgium are among a handful of EU countries that have bought the drugs.

The EMA’s review of Merck’s (MRK.N) pill, developed with Ridgeback Biotherapeutics, is taking longer than Pfizer’s because Merck released trial data in November showing its drug was significantly less effective than previously thought.

“Merck had applied earlier than Pfizer, but then they had sent the final data on efficacy later, and therefore it took European regulators more time to examine that very last data,” the source said.

The source declined to be identified because the EMA’s reviews are confidential.

While vaccines are central to fighting the pandemic, regulators are looking at antivirals, which can be taken at home, as a new weapon against the fast-spreading Omicron variant. Reuters