Last Updated: October 28, 2026

osphena Drug Patent Profile


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Which patents cover Osphena, and what generic alternatives are available?

Osphena is a drug marketed by Duchesnay and is included in one NDA. There are two patents protecting this drug and one Paragraph IV challenge.

The generic ingredient in OSPHENA is ospemifene. There is one drug master file entry for this compound. One supplier is listed for this compound. Additional details are available on the ospemifene profile page.

DrugPatentWatch® Generic Entry Outlook for Osphena

Osphena was eligible for patent challenges on February 26, 2017.

There have been two patent litigation cases involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.

Indicators of Generic Entry

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Recent Clinical Trials for osphena

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Emory UniversityPhase 4
Sue GoldsteinPhase 4

See all osphena clinical trials

Pharmacology for osphena
Paragraph IV (Patent) Challenges for OSPHENA
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
OSPHENA Tablets ospemifene 60 mg 203505 1 2020-12-29

US Patents and Regulatory Information for osphena

osphena is protected by four US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 RX Yes Yes 8,236,861 ⤷  Start Trial ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 RX Yes Yes 8,642,079 ⤷  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. >Exclusivity Expiration

Expired US Patents for osphena

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 8,772,353 ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 6,245,819 ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 8,470,890 ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 9,566,252 ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 8,236,861 ⤷  Start Trial
Duchesnay OSPHENA ospemifene TABLET;ORAL 203505-001 Feb 26, 2013 9,855,224 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

EU/EMA Drug Approvals for osphena

Company Drugname Inn Product Number / Indication Status Generic Biosimilar Orphan Marketing Authorisation Marketing Refusal
Shionogi B.V. Senshio ospemifene EMEA/H/C/002780Senshio is indicated for the treatment of moderate to severe symptomatic vulvar and vaginal atrophy (VVA) in post-menopausal women. Authorised no no no 2015-01-14
>Company >Drugname >Inn >Product Number / Indication >Status >Generic >Biosimilar >Orphan >Marketing Authorisation >Marketing Refusal

International Patents for osphena

When does loss-of-exclusivity occur for osphena?

Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:

Lithuania

Patent: 2015023
Estimated Expiration: ⤷  Start Trial

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

See the table below for additional patents covering osphena around the world.

Country Patent Number Title Estimated Expiration
Austria 300289 ⤷  Start Trial
Australia 2001258449 ⤷  Start Trial
Australia 5844901 ⤷  Start Trial
Bulgaria 107472 ⤷  Start Trial
Bulgaria 65943 ⤷  Start Trial
Brazil 0112659 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for osphena

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1713458 CA 2015 00031 Denmark ⤷  Start Trial PRODUCT NAME: OSPEMIFENE; REG. NO/DATE: EU/1/14/978/001-002 20150115
1713458 C300742 Netherlands ⤷  Start Trial PRODUCT NAME: OSPEMIFEEN, DESGEWENST IN DE VORM VAN EEN FARMACEUTISCH; REGISTRATION NO/DATE: EU/1/14/978 20150115
1713458 92736 Luxembourg ⤷  Start Trial PRODUCT NAME: OSPEMIFENE DANS TOUTES LES FORMES PROTEGEES PAR LE BREVET DE BASE; FIRST REGISTRATION: 20150115
1713458 PA2015023 Lithuania ⤷  Start Trial PRODUCT NAME: OSPEMIFENUM; REGISTRATION NO/DATE: EU/1/14/978/001, 2015 01 15 EU/1/14/978/002 20150115
1713458 15C0041 France ⤷  Start Trial PRODUCT NAME: OSPEMIFENE DANS TOUTES LES FORMES PROTEGEES PAR LE BREVET DE BASE; REGISTRATION NO/DATE: EU/1/14/978 20150115
1713458 CR 2015 00031 Denmark ⤷  Start Trial PRODUCT NAME: OSPEMIFENE OR A GEOMETRIC ISOMER THEREOF, A STEREOISOMER THEREOF, A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AN ESTER THEREOF OR A METABOLITE THEREOF; REG. NO/DATE: EU/1/14/978/001-002 20150115
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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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.