Last Updated: November 9, 2026

Details for Patent: 11,918,557

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Summary for Patent: 11,918,557
Title:Treatment of circadian rhythm disorders
Abstract:Embodiments of the invention relate to the use of a melatonin agonist in the treatment of free running circadian rhythms in patients, including light perception impaired patients, e.g., blind patients, and to methods of measuring circadian rhythm.
Inventor(s):Marlene Michelle Dressman, Louis William Licamele, Mihael H. Polymeropoulos
Assignee: Vanda Pharmaceuticals Inc
Application Number:US18/183,655
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,918,557
Patent Claim Types:
see list of patent claims
Use;

Recent additions to Drugs Protected by US Patent 11,918,557

These patents are from the daily update and have not yet been integrated into the regular database
Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Product Substance Delist Req. Patent Expiration Usecode Patented / Exclusive Use
Vanda Pharms Inc HETLIOZ tasimelteon CAPSULE 205677 Jan 31, 2014 RX Yes 11,918,557 ⤷  Start Trial U-3003 TREATMENT OF NIGHTTIME SLEEP DISTURBANCES IN SMITH-MAGENIS SYNDROME BY ADMINISTERING TASIMELTEON
Vanda Pharms Inc HETLIOZ tasimelteon CAPSULE 205677 Jan 31, 2014 RX Yes 11,918,557 ⤷  Start Trial U-3865 TREATMENT OF NON-24-HOUR SLEEP-WAKE DISORDER BY ADMINISTERING TASIMELTEON
Vanda Pharms Inc HETLIOZ LQ tasimelteon SUSPENSION 214517 Dec 1, 2020 RX Yes 11,918,557 ⤷  Start Trial U-3003 TREATMENT OF NIGHTTIME SLEEP DISTURBANCES IN SMITH-MAGENIS SYNDROME BY ADMINISTERING TASIMELTEON
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Type >RLD >Patent No. >Product >Substance >Delist Req. >Patent Expiration >Usecode >Patented / Exclusive Use

Drugs Protected by US Patent 11,918,557

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Vanda Pharms Inc HETLIOZ tasimelteon CAPSULE;ORAL 205677-001 Jan 31, 2014 AB RX Yes Yes 11,918,557 ⤷  Start Trial TREATMENT OF NIGHTTIME SLEEP DISTURBANCES IN SMITH-MAGENIS SYNDROME BY ADMINISTERING TASIMELTEON ⤷  Start Trial
Vanda Pharms Inc HETLIOZ tasimelteon CAPSULE;ORAL 205677-001 Jan 31, 2014 AB RX Yes Yes 11,918,557 ⤷  Start Trial TREATMENT OF NON-24-HOUR SLEEP-WAKE DISORDER BY ADMINISTERING TASIMELTEON ⤷  Start Trial
Vanda Pharms Inc HETLIOZ LQ tasimelteon SUSPENSION;ORAL 214517-001 Dec 1, 2020 RX Yes Yes 11,918,557 ⤷  Start Trial TREATMENT OF NIGHTTIME SLEEP DISTURBANCES IN SMITH-MAGENIS SYNDROME BY ADMINISTERING TASIMELTEON ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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