FDA Denies Glaxo Zofran Petition
FDA has denied without comment an 11/1/19 GlaxoSmithKline petition asking that the agency review four categories of information concerning the use of Zofran (ondansetron) in pregnancy and “either refrain from taking action to alter Zofran’s pregnancy-related labeling or take action to alter the labeling in light of these four categories of information, as the agency deems appropriate.” The FDA response denies the petition without comment on the relevance, if any, of the information to ondansetron product labeling.
“FDA evaluates whether safety-related labeling changes are warranted based on the review of all relevant information available to the agency,” the response says. “Your request that FDA review and opine on certain pieces of information to answer a hypothetical question separate and apart from FDA’s ongoing product review would divert scientific staff time away from pending drug applications, drug product safety review, and other work critical to our public health mission and therefore would detract from fulfilling the agency’s statutory obligations.”
The response contains background information on safety-related labeling for prescription drugs that FDA says may help clarify its expectations for application holders’ submission of postmarketing safety-related information in the context of relevant statutory and regulatory requirements.