Novavax is already poised to benefit from a separate combined Covid-flu vaccine via a deal with Sanofi announed earlier this year. Under the $1.4 billion co-licensing agreement, announced in May, Sanofi will have the sole right to use Novavax's existing Covid-19 vaccine in combination with its own flu vaccine.

(Reuters) -The U.S. Food and Drug Administration has lifted its clinical hold on a late-stage trial of Novavax's COVID-influenza and its standalone flu vaccines after a safety ... Shares of the vaccine maker rose nearly 14% to $10.17 in premarket trading.

Monday said the Food and Drug Administration or FDA has removed the clinical hold on its COVID-19-Influenza Combination (CIC) and stand-alone influenza vaccine candidates. Novavax shares were up more than 13 percent in pre-market.

Novavax (NVAX) shares surge 12% as FDA lifts clinical hold on COVID-19-Influenza Combination vaccine candidates.