Investors clipped shares of Avadel Pharmaceuticals plc recently as anxieties rose over the application by Jazz Pharmaceuticals plc for a patent that relates to a once-nightly oxybate product that could threaten the prospects for Avadel’s FT-218.
The FDA has approved Xywav (calcium, magnesium, potassium and sodium oxybates; JZP-258), an oxybate product for treating both cataplexy and excessive daytime sleepiness in narcolepsy patients ages 7 and older, from Jazz Pharmaceuticals plc.