EU’s New Drug Agency Head Warns of Vaccine Safety Challenges

  • Cooke takes helm at European Medicines Agency at crucial time
  • Regulator to assess mRNA technology used by Pfizer, Moderna
The European Medicine Agency has started two accelerated reviews for potential Covid vaccines from Pfizer Inc. and AstraZeneca Plc.Photographer: Yuriko Nakao/Bloomberg
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Monitoring the safety of Covid-19 vaccines, especially those relying on novel technologies such as messenger RNA, will be one of the biggest challenges once shots are rolled out widely, according to Europe’s new drug agency chief.

Positive results won’t “remove the need to monitor very carefully these new vaccines, particularly the first couple that seem to be coming through,” Emer Cooke, who becomes executive director of the European Medicines Agency Monday, said in an interview. “We haven’t had mRNA vaccines before, and when it goes into a large population you need to be sure” safety remains under review.