Pfizer Vaccine’s Benefit-Risk Assessment In Older Male Adolescents A Close Call Due To Myocarditis
For males 16-17 years old, excess cases of myocarditis/pericarditis from Comirnaty would exceed COVID-19 hospitalizations and deaths under ‘worst case’ scenario modeled by US FDA; agency nevertheless deemed approval warranted in this subpopulation, citing prevention of nonhospitalized COVID cases and public health benefits from vaccination.
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US FDA estimated the three-dose primary series of Pfizer/BioNTech’s vaccine would prevent 364 hospitalizations, while Moderna estimated that a two-dose primary series of mRNA-1273 would prevent 248 hospitalizations and 60 ICU stays.
Moderna fell behind Pfizer after receiving EUA for Spikevax, as it took three months longer to file its BLA and had an extra two months of FDA review for full approval. Novavax files request for FDA emergency use authorization of its vaccine.
Pfizer’s Comirnaty: Emerging Myocarditis Signal Drew Flurry Of Attention During Compressed BLA Review
Multiple offices within CBER worked to get a handle on the myocarditis issue in the midst of a three-month review of the COVID vaccine, with US FDA staff undertaking a quantitative benefit-risk assessment and negotiating with Pfizer on postmarket safety studies.