Merck & Co is to axe development of two COVID-19 vaccine candidates, focusing on development of two therapies instead following disappointing results in early trials.
Gilead Sciences says its antiviral Veklury should be effective against the new, more contagious COVID-19 variants discovered in the UK and South Africa.
The state-owned backers of Russia’s Sputnik V coronavirus vaccine have ruled out a US filing, as talks began in earnest with European regulators over a review.