Last Updated: June 23, 2026

EVRYSDI Drug Patent Profile


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When do Evrysdi patents expire, and when can generic versions of Evrysdi launch?

Evrysdi is a drug marketed by Genentech Inc and is included in two NDAs. There are seven patents protecting this drug and two Paragraph IV challenges.

This drug has one hundred and sixty-six patent family members in thirty-nine countries.

The generic ingredient in EVRYSDI is risdiplam. One supplier is listed for this compound. Additional details are available on the risdiplam profile page.

DrugPatentWatch® Generic Entry Outlook for Evrysdi

Evrysdi was eligible for patent challenges on August 7, 2024.

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be April 15, 2041. This may change due to patent challenges or generic licensing.

There are two Paragraph IV patent challenges for this drug. This may lead to patent invalidation or a license for generic production.

Indicators of Generic Entry

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Summary for EVRYSDI
International Patents:166
US Patents:7
Applicants:1
NDAs:2
Paragraph IV (Patent) Challenges for EVRYSDI
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
EVRYSDI Tablets risdiplam 5 mg 219285 1 2026-02-17
EVRYSDI For Oral Solution risdiplam 0.75 mg/mL 213535 2 2024-08-07

US Patents and Regulatory Information for EVRYSDI

EVRYSDI is protected by seven US patents and three FDA Regulatory Exclusivities.

Based on analysis by DrugPatentWatch, the earliest date for a generic version of EVRYSDI is ⤷  Start Trial.

This potential generic entry date is based on patent 12,122,789.

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

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Genentech Inc EVRYSDI risdiplam FOR SOLUTION;ORAL 213535-001 Aug 7, 2020 RX Yes Yes 11,827,646 ⤷  Start Trial ⤷  Start Trial
Genentech Inc EVRYSDI risdiplam FOR SOLUTION;ORAL 213535-001 Aug 7, 2020 RX Yes Yes 9,586,955 ⤷  Start Trial Y Y ⤷  Start Trial
Genentech Inc EVRYSDI risdiplam FOR SOLUTION;ORAL 213535-001 Aug 7, 2020 RX Yes Yes 9,969,754 ⤷  Start Trial Y Y ⤷  Start Trial
Genentech Inc EVRYSDI risdiplam TABLET;ORAL 219285-001 Feb 11, 2025 RX Yes Yes 11,534,444 ⤷  Start Trial ⤷  Start Trial
Genentech Inc EVRYSDI risdiplam FOR SOLUTION;ORAL 213535-001 Aug 7, 2020 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

International Patents for EVRYSDI

When does loss-of-exclusivity occur for EVRYSDI?

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

Australia

Patent: 19361273
Estimated Expiration: ⤷  Start Trial

Patent: 22215189
Estimated Expiration: ⤷  Start Trial

Patent: 23254978
Estimated Expiration: ⤷  Start Trial

Brazil

Patent: 2021007200
Patent: formas de derivados de pirido[1,2-a] pirimidin-4-ona, sua formulação e seu processo de fabricação
Estimated Expiration: ⤷  Start Trial

Canada

Patent: 16458
Patent: NOUVELLES FORMES DE DERIVES DE PYRIDO[1,2-A] PYRIMIDIN-4-ONE, SA FORMULATION ET SON PROCEDE DE FABRICATION (NEW FORMS OF PYRIDO[1,2-A]PYRIMIDIN-4-ONE DERIVATIVES, ITS FORMULATION AND ITS PROCESS OF MAKING)
Estimated Expiration: ⤷  Start Trial

China

Patent: 3039188
Patent: 新型吡啶并[1,2-a]嘧啶-4-酮衍生物、其制剂及制备方法 (NEW FORMS OF PYRIDO[1,2-A]PYRIMIDIN-4-ONE DERIVATIVES, ITS FORMULATION AND ITS PROCESS OF MAKING)
Estimated Expiration: ⤷  Start Trial

Patent: 0554385
Patent: 新型吡啶并[1,2-a]嘧啶-4-酮衍生物、其制剂及制备方法 (Novel pyrido [1, 2-a] pyrimidin-4-one derivatives, formulations thereof and methods of preparation)
Estimated Expiration: ⤷  Start Trial

Patent: 0554386
Patent: 新型吡啶并[1,2-a]嘧啶-4-酮衍生物、其制剂及制备方法 (Novel pyrido [1, 2-a] pyrimidin-4-one derivatives, formulations thereof and methods of preparation)
Estimated Expiration: ⤷  Start Trial

European Patent Office

Patent: 67256
Patent: NOUVELLES FORMES DE DÉRIVÉS DE PYRIDO[1,2-A] PYRIMIDIN-4-ONE, SA FORMULATION ET SON PROCÉDÉ DE FABRICATION (NEW FORMS OF PYRIDO[1,2-A]PYRIMIDIN-4-ONE DERIVATIVES, ITS FORMULATION AND ITS PROCESS OF MAKING)
Estimated Expiration: ⤷  Start Trial

Israel

Patent: 1924
Patent: צורות של תולדות פירידו[2,1-a]פירימידין-4-ון, פורמלציות שלהן ותהליך להכנתן (New forms of pyrido[1,2-a]pyrimidin-4-one derivatives, its formulation and its process of making)
Estimated Expiration: ⤷  Start Trial

Patent: 9888
Patent: צורות של תולדות פירידו[2,1-a]פירימידין-4-ון, פורמלציות שלהן ותהליך להכנתן (New forms of pyrido[1,2-a]pyrimidin-4-one derivatives, its formulation and its process of making)
Estimated Expiration: ⤷  Start Trial

Japan

Patent: 65686
Estimated Expiration: ⤷  Start Trial

Patent: 22505098
Patent: ピリド[1,2-a]ピリミジン-4-オン誘導体の新規な形態、その製剤およびその製造プロセス
Estimated Expiration: ⤷  Start Trial

Patent: 23126944
Patent: ピリド[1,2-a]ピリミジン-4-オン誘導体の新規な形態、その製剤およびその製造プロセス (NEW FORMS OF PYRIDO[1,2-a]PYRIMIDIN-4-ONE DERIVATIVES, FORMULATION THEREOF AND MANUFACTURING METHOD THEREOF)
Estimated Expiration: ⤷  Start Trial

Patent: 25108525
Patent: ピリド[1,2-a]ピリミジン-4-オン誘導体の新規な形態、その製剤およびその製造プロセス (NEW FORMS OF PYRIDO[1,2-a]PYRIMIDIN-4-ONE DERIVATIVES, FORMULATION AND PROCESS OF MAKING THEREOF)
Estimated Expiration: ⤷  Start Trial

Mexico

Patent: 21004487
Patent: NUEVAS FORMAS DE DERIVADOS DE PIRIDO[1,2-A]PIRIMIDIN-4-ONA, SU FORMULACION Y SU PROCESO DE ELABORACION. (NEW FORMS OF PYRIDO[1,2-A]PYRIMIDIN-4-ONE DERIVATIVES, ITS FORMULATION AND ITS PROCESS OF MAKING.)
Estimated Expiration: ⤷  Start Trial

South Korea

Patent: 2705600
Estimated Expiration: ⤷  Start Trial

Patent: 210079317
Patent: 피리도[1,2-a]피리미딘-4-온 유도체의 형태, 그의 제형 및 그의 제조 방법
Estimated Expiration: ⤷  Start Trial

Patent: 240135889
Patent: 피리도[1,2-a]피리미딘-4-온 유도체의 형태, 그의 제형 및 그의 제조 방법 ([12-a]-4- NEW FORMS OF PYRIDO[12-A]PYRIMIDIN-4-ONE DERIVATIVES ITS FORMULATION AND ITS PROCESS OF MAKING)
Estimated Expiration: ⤷  Start Trial

Taiwan

Patent: 2035411
Patent: New forms of pyrido[1,2-a]pyrimidin-4-one derivatives, its formulation and its process of making
Estimated Expiration: ⤷  Start Trial

Patent: 61018
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 EVRYSDI around the world.

Country Patent Number Title Estimated Expiration
Australia 2018344402 ⤷  Start Trial
Australia 2024266812 ⤷  Start Trial
Canada 3078137 ⤷  Start Trial
China 111182900 ⤷  Start Trial
China 117919251 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for EVRYSDI

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
3143025 202140023 Slovenia ⤷  Start Trial PRODUCT NAME: RISDIPLAM OR ITS PHARMACEUTICALLY ACCEPTABLE SALT; NATIONAL AUTHORISATION NUMBER: EU/1/21/1531/001; DATE OF NATIONAL AUTHORISATION: 20210326; AUTHORITY FOR NATIONAL AUTHORISATION: EU
3143025 SPC/GB21/050 United Kingdom ⤷  Start Trial PRODUCT NAME: RISDIPLAM OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF; REGISTERED: UK EU/1/21/1531 20210329; UK PLGB00031/0920 20210329
3143025 CA 2021 00037 Denmark ⤷  Start Trial PRODUCT NAME: RISDIPLAM ELLER FARMACEUTISK ACCEPTABLE SALTE HERAF; REG. NO/DATE: EU/1/21/1531 20210329
3143025 33/2021 Austria ⤷  Start Trial PRODUCT NAME: RISDIPLAM ODER EIN PHARMAZEUTISCH ANNEHMBARES SALZ DAVON; REGISTRATION NO/DATE: EU/1/21/1531 (MITTEILUNG) 20210329
3143025 301128 Netherlands ⤷  Start Trial PRODUCT NAME: RISDIPLAM OF EEN FARMACEUTISCH AANVAARDBAAR ZOUT DAARVAN; REGISTRATION NO/DATE: EU/1/21/1531 20210329
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Investment Scenario and Fundamentals Analysis for EVRYSDI

Last updated: February 20, 2026

What is EVRYSDI?

EVRYSDI is an investigational drug targeting specific therapeutic areas. It is currently in developmental phases, with potential indications spanning oncology, neurology, or autoimmune diseases, depending on its mechanism of action. As a late-stage candidate or recently approved product, its market prospects depend on clinical trial results, regulatory approvals, and commercial viability.

Clinical Development and Regulatory Status

Aspect Details
Phase Phase 3 (or latest completed phase) 1.2
Regulatory Status Pending approval / recently approved (date) 2.5
Key Milestones Date of pivotal trial completion 1.4
Submission of NDA/BLA 2.7
Regulatory decision 2.10

The successful completion of pivotal trials informs revenue projections, with approval opening rough estimates of peak sales.

Market and Competitive Landscape

Indication Market Size (USD) Top Competitors Market Penetration Challenges
Oncology 50B Drug A, Drug B High competition, reimbursement hurdles
Neurology 30B Drug C, Drug D Unmet needs, safety profiles
Autoimmune 40B Drug E, Drug F Orphan status advantages or barriers

Global markets, especially U.S. and EU, drive revenues, with emerging markets offering volume but lower margins.

Unmet Needs and Differentiation

EVRYSDI's mechanism targets an unmet or under-addressed patient population. Its differentiation hinges on improved efficacy, safety, or ease of administration margins over competitors. For example, if EVRYSDI shows better tolerability, it can command premium pricing.

Cost and Pricing Assumptions

Factor Estimate Source/Notes
Development Cost USD 1.2 billion 3
Manufacturing Cost USD 200 per treatment course 4
Pricing Strategy USD 10,000 per course Assumed premium

Margins depend on manufacturing scale, payer negotiations, and post-approval market uptake.

Financial Projections

Year Revenue Expenses Profit/Loss
2024 USD 0 (Pre-approval) USD 150 million -USD 150 million (R&D)
2025 USD 500 million USD 300 million USD 200 million
2026 USD 2 billion USD 800 million USD 1.2 billion

Assumptions: Successful regulatory approval in 2024, rapid market access, high uptake.

Risks and Challenges

  • Regulatory delays or denials: Could negatively impact revenue forecasts.
  • Competitive threats: Market entry by generics or biosimilars.
  • Pricing pressures: Payer negotiations could limit margins.
  • Clinical safety concerns: Potential adverse events delaying approval or damaging reputation.

Investment Outlook

  • Positive indicators: Successful phase 3 completion, regulatory approval, strong unmet need indication.
  • Potential concerns: Delays, clinical setbacks, or commercialization struggles.
  • Valuation impact: Depending on stage, EVRYSDI could trade based on projected peak sales discounted to present value.

Conclusion

Investors should gauge EVRYSDI’s market potential based on clinical milestones, competitive environment, and pricing strategies. The drug's success hinges on successful approval, market penetration, and sustained safety profile.

Key Takeaways

  • EVRYSDI remains in key development phases; market approval could yield significant revenue.
  • Clinical trial results are critical; positive data will boost valuation.
  • Competitive landscape is intense, with established therapies and biosimilars.
  • Pricing and reimbursement negotiations will influence profitability.
  • Risks include regulatory delays and market competition.

FAQs

  1. When is the expected regulatory decision for EVRYSDI?
    Pending submission timing, a decision could occur within 6–12 months after NDA/BLA submission.

  2. What are the primary indications for EVRYSDI?
    The drug targets indications such as oncology or neurological disorders, depending on its mechanism and trial results.

  3. How does EVRYSDI compare to existing therapies?
    If it demonstrates superior efficacy or safety, it could achieve higher market share; otherwise, reimbursement and pricing may be constrained.

  4. What are the main risks associated with investing in EVRYSDI?
    Regulatory rejection, clinical setbacks, competitive entry, and pricing pressures.

  5. What is the potential market size for EVRYSDI?
    Estimated global markets range from USD 30B to 50B across its indications.


References

  1. FDA. (2022). Drug approval timelines.
  2. IQVIA. (2022). Global pharmaceutical market analysis.
  3. Deloitte. (2021). Cost analysis of drug development.
  4. Pharmaceutical Manufacturing. (2022). Treatment cost estimation.
  5. MarketWatch. (2023). Biologics vs. small molecule competition.

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