Eisai and Purdue reveal key data comparing lemborexant with Ambien

7 March 2018

Japanese drugmaker Eisai (TYO: 4523) and co-developer Purdue Pharma have announced positive topline results related to investigational therapy lemborexant, currently being studied for the treatment of multiple sleep disorders.

The data show that the Phase III SUNRISE 1 study met its primary and key secondary objectives versus placebo and versus zolpidem tartrate extended release.

Zolpidem tartrate was first patented in the USA by France's largest drugmaker Sanofi (Euronext: SAN) in 1992, where it is marketed as Ambien. Eisai and Purdue have been collaborating on their rival therapy since 2015.

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