Last Updated: September 24, 2026

Details for Patent: 8,268,847


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 8,268,847 protect, and when does it expire?

Patent 8,268,847 protects OPSUMIT and OPSYNVI and is included in two NDAs.

Protection for OPSUMIT has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has forty-one patent family members in thirty-three countries.

Summary for Patent: 8,268,847
Title:Therapeutic compositions comprising a specific endothelin receptor antagonist and a PDE5 inhibitor
Abstract:The invention relates to a product containing the compound of formula (I) below or a pharmaceutically acceptable salt of this compound, in combination with at least one compound having PDE5-inhibitory properties, or a pharmaceutically acceptable salt thereof, for therapeutic use, simultaneously, separately or over a period of time, in the treatment of a disease wherein vasoconstriction is involved.
Inventor(s):Martine Clozel
Assignee: Actelion Pharmaceuticals Ltd
Application Number:US12/439,290
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,268,847
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 8,268,847

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Actelion OPSUMIT macitentan TABLET;ORAL 204410-001 Oct 18, 2013 AB RX Yes Yes 8,268,847*PED ⤷  Start Trial Y ⤷  Start Trial
Actelion OPSYNVI macitentan; tadalafil TABLET;ORAL 218490-001 Mar 22, 2024 RX Yes No 8,268,847*PED ⤷  Start Trial Y ⤷  Start Trial
Actelion OPSYNVI macitentan; tadalafil TABLET;ORAL 218490-002 Mar 22, 2024 RX Yes Yes 8,268,847*PED ⤷  Start Trial Y ⤷  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

Foreign Priority and PCT Information for Patent: 8,268,847

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
PCT/IB2006/052999Aug 29, 2006
PCT/IB2006/053857Oct 19, 2006
PCT Information
PCT FiledAugust 28, 2007PCT Application Number:PCT/IB2007/053448
PCT Publication Date:March 06, 2008PCT Publication Number: WO2008/026156

International Family Members for US Patent 8,268,847

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2059246 ⤷  Start Trial CA 2024 00050 Denmark ⤷  Start Trial
European Patent Office 2059246 ⤷  Start Trial PA2024537 Lithuania ⤷  Start Trial
European Patent Office 2059246 ⤷  Start Trial 301308 Netherlands ⤷  Start Trial
European Patent Office 2059246 ⤷  Start Trial LUC00371 Luxembourg ⤷  Start Trial
European Patent Office 2059246 ⤷  Start Trial 122024000070 Germany ⤷  Start Trial
European Patent Office 2059246 ⤷  Start Trial 45/2024 Austria ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.