Last Updated: September 24, 2026

ENDOMETRIN Drug Patent Profile


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When do Endometrin patents expire, and what generic alternatives are available?

Endometrin is a drug marketed by Ferring and is included in one NDA.

The generic ingredient in ENDOMETRIN is progesterone. There is one drug master file entry for this compound. Twenty-nine suppliers are listed for this compound. Additional details are available on the progesterone profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Endometrin

A generic version of ENDOMETRIN was approved as progesterone by FRESENIUS KABI USA on April 25th, 2001.

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Summary for ENDOMETRIN
Recent Clinical Trials for ENDOMETRIN

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

SponsorPhase
Shaare Zedek Medical CenterEARLY_PHASE1
Clinique OvoPhase 2
The University of Hong KongPhase 3

See all ENDOMETRIN clinical trials

Pharmacology for ENDOMETRIN
Drug ClassProgesterone

US Patents and Regulatory Information for ENDOMETRIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Ferring ENDOMETRIN progesterone INSERT;VAGINAL 022057-001 Jun 21, 2007 AB RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  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 ENDOMETRIN

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Ferring ENDOMETRIN progesterone INSERT;VAGINAL 022057-001 Jun 21, 2007 ⤷  Start Trial ⤷  Start Trial
Ferring ENDOMETRIN progesterone INSERT;VAGINAL 022057-001 Jun 21, 2007 ⤷  Start Trial ⤷  Start Trial
Ferring ENDOMETRIN progesterone INSERT;VAGINAL 022057-001 Jun 21, 2007 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for ENDOMETRIN

See the table below for patents covering ENDOMETRIN around the world.

Country Patent Number Title Estimated Expiration
Australia 1176200 ⤷  Start Trial
Canada 2568823 COMPRIMES DE PROGESTERONE A ADMINISTRATION VAGINALE ET METHODE DE PREPARATION (VAGINALLY ADMINISTRABLE PROGESTERONE-CONTAINING TABLETS AND METHOD FOR PREPARING SAME) ⤷  Start Trial
Denmark 1131052 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for ENDOMETRIN

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0113964 97C0037 Belgium ⤷  Start Trial PRODUCT NAME: OESTROGENES EQUINS CONJUGUES; ACETATE DE MEDROXYPROGESTERONE; NAT. REGISTRATION NO/DATE: NL 19569 19950301; FIRST REGISTRATION: CH - 52647 01 010 19940826
2782584 301153 Netherlands ⤷  Start Trial PRODUCT NAME: COMPOSITION CONTAINING BOTH ESTRADIOL (17SS-ESTRADIOL), OPTIONALLY IN THE FORM OF A PHARMACEUTICALLY ACCEPTABLE SALT, HYDRATE OR SOLVATE THEREOF (INCLUDING IN HEMIHYDRATE FORM), AND PROGESTERONE; NATIONAL REGISTRATION NO/DATE: RVG 125821 20210611; FIRST REGISTRATION: BE BE582231 20210406
2782584 2021C/558 Belgium ⤷  Start Trial PRODUCT NAME: COMPOSITION CONTENANT A LA FOIS DE L'ESTRADIOL (17--ESTRADIOL), EVENTUELLEMENT SOUS FORME D'UN SEL, HYDRATE OU SOLVATE PHARMACEUTIQUEMENT ACCEPTABLE DE CELUI-CI (Y COMPRIS SOUS FORME HEMIHYDRATEE), ET DE LA PROGESTERONE; AUTHORISATION NUMBER AND DATE: BE582231 20210406
>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.