An FDA nod mostly clears the way for Orzeyful to enter, by Wall Street estimates, a multibillion-dollar market for drugs that boost “orexin” proteins.

The milestone marks the first time a first-in-class drug using global clinical data has been filed and approved in China ahead of the rest of the world

The FDA approved a novel type of treatment for narcolepsy made by Takeda, backing a new drug class that scientists hope can be used to treat other conditions.