Exclude Liraglutide from Compounding: Novo Nordisk

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Novo Nordisk has petitioned FDA to exclude its liraglutide from the agency’s list of bulk drug substances that may be used by outsourcing facilities in compounding. Liraglutide is a GLP-1 agonist and is the active ingredient in the company’s diabetes drugs Victoza and Xultophy and weight-loss therapy Saxenda.

In the petition, Novo Nordisk contends that liraglutide does not meet the standard and criteria to be included in the bulk drug substance listing for which there is a “clinical need” to compound. “The physical and chemical characterization of liraglutide weighs against a finding of clinical need,” the petition says. “There is abundant scientific evidence showing that even small changes in the manufacturing process of liraglutide can substantially affect its chemical and physical stability, as well as its impurity profile.”

Additionally, the petition states that safety issues raised by the use of compounded liraglutide “weigh against a finding of clinical need. The impurity profiles and, in particular, the evidence of fibril formation in the unapproved liraglutide products raise significant immunogenicity risks and pose serious threats to patients’ health.”

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