FDA Grants Tentative Approval to Extended-Release Narcolepsy Agent

A new formulation of a narcolepsy drug may get uptake among providers, according to Zitter Insights research. But payers indicate that they are likely to require patients to fail at least one generic drug before getting access to the new agent and other branded medications. Still, the agent’s less onerous dosing may allow it to pull market share from similar medications within the class.

On July 19, Avadel Pharmaceuticals plc said that the FDA had granted tentative approval to its Lumryz (sodium oxybate) for the treatment of excessive daytime sleepiness or cataplexy — an abrupt loss of muscle tone that can be triggered by strong emotion — in adults with narcolepsy. The drug — which is also known as FT218 — is a once-at-bedtime extended-release version of Jazz Pharmaceuticals plc’s Xyrem, a drug that requires one dose at bedtime and then another dose between two-and-a-half to four hours later.

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