FDA Rejects sNDA for Vanda’s Jet Lag Drug
FDA has issued Vanda Pharmaceuticals a complete response letter on a supplemental NDA for Hetlioz (tasimelteon) for treating jet lag disorder. The letter said that “measures” contained in the NDA demonstrating improved sleep have “unclear clinical significance,” according to the company. Vanda previously reported that treated patients slept nearly three hours longer over the three nights following a transatlantic trip than patients following an untreated transatlantic trip.
The company says the letter also contained “additional observations” related to the NDA. “Vanda intends to consider each observation as it plans for continued engagement with the FDA on this matter,” it says.
Last month, Vanda said it had received FDA notification about undisclosed deficiencies that “preclude discussion of labeling and postmarketing requirements/commitments” involving the sNDA (see earlier story).
Vanda says that Hetlioz was shown to be well tolerated prior to its first approval by FDA in 2014 for non-24-hour sleep-wake disorder. “In addition, Vanda has studied Hetlioz for almost 15 years in different settings and conditions, and Hetlioz has consistently demonstrated robust biological effects and clinical benefits,” it says.