Last Updated: May 1, 2026

estradiol; norethindrone acetate; relugolix - Profile


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What are the generic drug sources for estradiol; norethindrone acetate; relugolix and what is the scope of patent protection?

Estradiol; norethindrone acetate; relugolix is the generic ingredient in one branded drug marketed by Sumitomo Pharma Am and is included in one NDA. There are eight patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Estradiol; norethindrone acetate; relugolix has one hundred and seventy-three patent family members in forty countries.

Summary for estradiol; norethindrone acetate; relugolix
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for estradiol; norethindrone acetate; relugolix
Generic Entry Date for estradiol; norethindrone acetate; relugolix*:
Constraining patent/regulatory exclusivity:
Dosage:
TABLET;ORAL

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Paragraph IV (Patent) Challenges for ESTRADIOL; NORETHINDRONE ACETATE; RELUGOLIX
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
MYFEMBREE Tablets estradiol; norethindrone acetate; relugolix 1 mg/0.5 mg/40 mg 214846 1 2024-12-18

US Patents and Regulatory Information for estradiol; norethindrone acetate; relugolix

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 RX Yes Yes ⤷  Start Trial ⤷  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 estradiol; norethindrone acetate; relugolix

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 ⤷  Start Trial ⤷  Start Trial
Sumitomo Pharma Am MYFEMBREE estradiol; norethindrone acetate; relugolix TABLET;ORAL 214846-001 May 26, 2021 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for estradiol; norethindrone acetate; relugolix

Country Patent Number Title Estimated Expiration
Hungary E059077 ⤷  Start Trial
Argentina 110636 ⤷  Start Trial
China 115666531 ⤷  Start Trial
Israel 311335 ⤷  Start Trial
Slovenia 3518932 ⤷  Start Trial
Eurasian Patent Organization 201990857 ⤷  Start Trial
Serbia 63300 POSTUPCI LEÄŒENJA FIBROIDA MATERICE I ENDOMETRIOZE (METHODS OF TREATING UTERINE FIBROIDS AND ENDOMETRIOSIS) ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for estradiol; norethindrone acetate; relugolix

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1214076 C01214076/01 Switzerland ⤷  Start Trial PRODUCT NAME: DROSPIRENONE + ETHINYLESTRADIOL; REGISTRATION NUMBER/DATE: SWISSMEDIC 57946 13.06.2008
1453521 15C0050 France ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOL ET MELANGE DE LEVONORGESTREL ET ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: NL 42237 20150320; FIRST REGISTRATION: SK - 17/0017/15-S 20150129
1453521 93156 Luxembourg ⤷  Start Trial PRODUCT NAME: LEVONORGESTREL ET ETHINYLESTRADIOL; FIRST REGISTRATION DATE: 20150211
1591446 301158 Netherlands ⤷  Start Trial PRODUCT NAME: RELUGOLIX OF EEN ZOUT DAARVAN; REGISTRATION NO/DATE: EU/1/21/1565 20210720
1591446 672 Finland ⤷  Start Trial
1591446 C202130069 Spain ⤷  Start Trial PRODUCT NAME: RELUGOLIX O UNA SAL DEL MISMO; NATIONAL AUTHORISATION NUMBER: EU/1/21/1565; DATE OF AUTHORISATION: 20210716; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): EU/1/21/1565; DATE OF FIRST AUTHORISATION IN EEA: 20210716
0398460 C300221 Netherlands ⤷  Start Trial PRODUCT NAME: DROSPIRENON EN ETHINYLESTRADIOL; REGISTRATION NO/DATE: RVG 23827 20000307
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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