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Axsome Therapeutics Announces Settlement Resolving All SUNOSI® (solriamfetol) Patent Litigation

$AXSMPress releaseJun 3, 2026, 7:00 AM ETRead the release

Axsome Therapeutics has resolved all patent litigation related to its CNS drug SUNOSI (solriamfetol) by settling with the last remaining first-to-file generic applicant. The agreement grants five companies the right to sell generic versions of SUNOSI starting no earlier than March 1, 2040, or September 1, 2040, if pediatric exclusivity is granted.

Key figures

Number of generic applicants settled
5
Generic entry date with pediatric exclusivity
September 1, 2040
Generic entry date without pediatric exclusivity
March 1, 2040

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