Pfizer shares rose 2.7% in premarket trading, with BioNTech American depositary receipts up 7.3%. European stocks extended their gains after the news, with the Stoxx Europe 600 up 0.4%
Pfizer said a final analysis of clinical-trial data showed its Covid-19 vaccine was 95% effective, paving the way for the company to apply for the first US regulatory authorization for a coronavirus shot within days.
The US drugmaker and partner BioNTech SE said their vaccine protected people of all ages and ethnicities, with no significant safety problems so far in a trial that includes almost 44,000 participants.
