Last Updated: June 27, 2026

Nusinersen sodium - Generic Drug Details


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What are the generic drug sources for nusinersen sodium and what is the scope of patent protection?

Nusinersen sodium is the generic ingredient in one branded drug marketed by Biogen Idec and is included in one NDA. There are seven patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Nusinersen sodium has one hundred and seven patent family members in twenty-eight countries.

One supplier is listed for this compound.

Summary for nusinersen sodium
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for nusinersen sodium
Generic Entry Date for nusinersen sodium*:
Constraining patent/regulatory exclusivity:
Dosage:

SOLUTION;INTRATHECAL

*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.

Pharmacology for nusinersen sodium
Paragraph IV (Patent) Challenges for NUSINERSEN SODIUM
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
SPINRAZA Intrathecal Solution nusinersen sodium 12 mg/5 mL 209531 1 2026-03-10

US Patents and Regulatory Information for nusinersen sodium

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-003 Mar 27, 2026 RX Yes Yes 8,361,977 ⤷  Start Trial Y Y ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 RX Yes Yes 12,013,403 ⤷  Start Trial ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 RX Yes Yes 9,926,559 ⤷  Start Trial ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 RX Yes Yes 9,717,750 ⤷  Start Trial ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 RX Yes Yes 10,436,802 ⤷  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 nusinersen sodium

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 7,101,993 ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 10,266,822 ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 6,210,892 ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 8,110,560 ⤷  Start Trial
Biogen Idec SPINRAZA nusinersen sodium SOLUTION;INTRATHECAL 209531-001 Dec 23, 2016 6,166,197 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for nusinersen sodium

Country Patent Number Title Estimated Expiration
Brazil 112017004056 composições e métodos para detecção da proteína smn em um indivíduo e tratamento de um indivíduo ⤷  Start Trial
Chile 2017000594 Composiciones y métodos para detección de proteína smn en un sujeto y tratamiento de un sujeto ⤷  Start Trial
Chile 2019000447 Composiciones y métodos para detección de proteína smn en un sujeto y tratamiento de un sujeto. (divisional solicitud 201700594) ⤷  Start Trial
Colombia 2017002400 Composiciones y métodos para detección de proteína smn en un sujeto ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2016040748 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for nusinersen sodium

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1910395 300905 Netherlands ⤷  Start Trial PRODUCT NAME: NUSINERSEN, DESGEWENST IN DE VORM VAN EEN ZOUT; REGISTRATION NO/DATE: EU/1/17/1188 20170601
2548560 C 2017 045 Romania ⤷  Start Trial PRODUCT NAME: NUSINERSEN SAU SARURI ALE ACESTUIA; NATIONAL AUTHORISATION NUMBER: EU/1/17/1188; DATE OF NATIONAL AUTHORISATION: 20170530; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): EU/1/17/1188; DATE OF FIRST AUTHORISATION IN EEA: 20170530
2548560 LUC00046 Luxembourg ⤷  Start Trial PRODUCT NAME: NUSINERSEN OU SES SELS; AUTHORISATION NUMBER AND DATE: EU/1/17/1188 20170601
2548560 CA 2017 00055 Denmark ⤷  Start Trial PRODUCT NAME: NUSINERSEN ELLER SALTE DERAF; REG. NO/DATE: EU/1/17/1188 20170601
2548560 C20170038 00228 Estonia ⤷  Start Trial PRODUCT NAME: NUSINERSEEN;REG NO/DATE: EU/1/17/1188 01.06.2017
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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