Novavax Inc said on Thursday its two-dose vaccine was 80% effective against Covid-19 in a late-stage trial testing the shot in teens aged 12 to 17 years.
The trial involved 2,247 adolescents and took place between May and September last year when the Delta variant was the dominant strain in the United States. The vaccine was 82% effective against the variant.
The US biotech said it expects to submit applications to global regulators for the shot’s use in adolescents during the first quarter.
Novavax late last month filed for authorisation of the shot in US adults, a much-awaited step following months of struggles with development and manufacturing problems.The vaccine has received authorisations from the European Union and the World Health Organisation and has been cleared for use in adults in countries including the United Kingdom and New Zealand.
