Last Updated: August 15, 2026

Details for Patent: 12,559,474


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Which drugs does patent 12,559,474 protect, and when does it expire?

Patent 12,559,474 protects XOCOVA and is included in one NDA.

This patent has forty-one patent family members in twenty-six countries.

Summary for Patent: 12,559,474
Title:Triazine derivatives having virus replication inhibitory activity and pharmaceutical composition comprising the same
Abstract:A compound represented by Formula (I): wherein Y is N or the like; R1 is substituted or unsubstituted aromatic heterocyclyl or the like; R2 is substituted or unsubstituted aromatic carbocyclyl or the like; R3 is substituted or unsubstituted aromatic heterocyclyl or the like; —X— is —NH— or the like; m is 1 or the like; R5a is each independently a hydrogen atom or the like; R5b is each independently a hydrogen atom or the like; n is 1 or the like; R4a is each independently a hydrogen atom or the like; and R4b is each independently a hydrogen atom or the like, or a pharmaceutically acceptable salt thereof.
Inventor(s):Yuki Tachibana, Shota UEHARA, Yuto Unoh, Kenji Nakahara, Yoshiyuki Taoda, Koji KASAMATSU, Yukiko YAMATSU, Shigeru Ando, Takahiro SUTO, Michihito SASAKI
Assignee: Hokkaido University NUC , Shionogi and Co Ltd
Application Number:US17/790,358
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 12,559,474

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Shionogi XOCOVA ensitrelvir TABLET;ORAL 220442-001 May 29, 2026 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y POST-EXPOSURE PROPHYLAXIS OF CORONAVIRUS DISEASE 2019 (COVID 19) IN ADULTS AND ADOLESCENTS 12 YEARS OF AGE AND OLDER ⤷  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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