Novavax slides 85% on failure of RSV vaccine trial

19 September 2016

USA-based Novavax (Nasdaq: NVAX) is beginning the week with its share price almost 85% lower than last week after the failure of its respiratory syncytial virus (RSV) F-protein recombinant nanoparticle vaccine candidate in older adults in a trial.

The vaccines specialist announced the news from the Resolve Phase III trial on Thursday, sending the value of its shares from $8.32 to around $1.20.

Neither the pre-specified primary or secondary efficacy objectives of the trial were met.

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