Genocea stops pneumonia vaccine development after study fails

(Reuters) – Drug developer Genocea Biosciences Inc said it was suspending the development of a vaccine for pneumonia-causing bacteria after it failed to significantly reduce infection in a mid-stage study. The company’s shares fell 34 percent to $ 4.75 in premarket trading. Genocea said it was dropping the development of the vaccine, GEN-004, from its near-term plans to focus on its lead drug – a treatment for genital herpes.
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