Heplisav Vaccine Postmarketing Study Might Overcome FDA Safety Worries At Panel

Dynavax has already received two complete response letters for its hepatitis B vaccine; more patients who received Heplisav died or experienced cardiovascular events compared with the competitor arm.

Large US American flag on sailboat off the coast of California
Dynavax likely won't have as smooth sailing at its advisory committee for Heplisav.

The US FDA is calling on its Vaccines and Related Biological Products Committee to weigh in on the causality of a higher rate of deaths and major cardiovascular adverse events among patients taking Dynavax Technologies Corp.'s hepatitis B vaccine Heplisav (rHBsAg-1018 ISS), as well as the adequacy company's proposed postmarketing safety to assess these risks.

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