Friday, April 17, 2015

Concert Pharmaceuticals: JZP-386

JZP-386 is the deutered enhanced version of sodium oxybate or commercial drug known as Xyrem, which is manufactured by Jazz Pharmaceuticals.  The drug was approved in 2002 for cataplexy in narcolepsy, and 2005 for excessive daytime sleepiness (EDS) in narcolepsy.  The patents run from 2019 through 2024 at the latest.  Xyrem is administered twice daily as a liquid dose, once before bed and again after about four hours of sleep. Xyrem has a side effect profile that includes headaches, dizziness, nausea, and potentially more serious side effects in higher doses such as convulsions, respiratory depression, coma and death, according to Xyrem prescribing information.   Concert is currently in a phase 1 trial to evaluate the deutered Xyrem version called JZP-386, compared to Xyrem, with a readout on the trial any day now.  The goal of the deutered version JZP-386, could be once daily dosing, lower dosing, or a reduction in side effects that currently exists with Xyrem. Concert would have a chance to receive royalties that run from mid single digits to low double digits, not to exceed 20% on a country-by-country basis, and licensed product-by-licensed product basis. The patent for JZP-386 runs from 2030 to 2032, U.S. EU, and Japan. Thank you for reading.


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