You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: April 5, 2026

Details for Patent: 11,433,059


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,433,059 protect, and when does it expire?

Patent 11,433,059 protects VIJOICE and is included in two NDAs.

This patent has fourteen patent family members in seven countries.

Summary for Patent: 11,433,059
Title:BYL719 (alpelisib) for use in the treatment of PIK3CA-related overgrowth spectrum (pros-CLOVES syndrome)
Abstract:The present invention relates to a method of treating PIK3CA-Related Overgrowth Spectrum (PROS) more particularly, Congenital, Lipomatous, Overgrowth, Vascular Malformations, Epidermal Nevi and Spinal/Skeletal Anomalies and/or Scoliosis (CLOVES) 10 syndrome. To date, there are no specific treatments for patients and no animal models of PROS to better understand the physiopathology of the disorder. Inventors developed a genetic mouse model of PROS that recapitulates the human disease and demonstrated the efficacy of BYL719. Based on these results they treated two patients, one adult and one child, with severe CLOVES syndrome using BYL719. The drug had a robust efficiency on disease in the 15 two patients inducing quick recovery of all affected organs. Thus, the invention relates to a method of treating PROS in a subject in need thereof comprising the step of administrating the subject with a therapeutically effective amount of BYL719.
Inventor(s):Guillaume Canaud
Assignee: Centre National de la Recherche Scientifique CNRS , Assistance Publique Hopitaux de Paris APHP , Institut National de la Sante et de la Recherche Medicale INSERM , Universite Paris Cite
Application Number:US15/998,950
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Summary
Patent 11,433,059 covers a novel pharmaceutical compound or formulation with specific claims designed to protect its use, composition, or manufacturing process. The scope is tightly centered around the detailed chemical or biological entities and their applications, with claims emphasizing novel features over prior art. The patent landscape indicates a strategic positioning within the therapeutic area, with potential implications for competitors. Forward-looking analysis suggests areas for patent prosecution, licensing, or litigation.


What Are the Scope and Key Claims of Patent 11,433,059?

1. Core Claims and Their Focus
The patent claims cover a specific chemical compound, its salts, or a formulation related to it. The scope often includes:

  • The compound's structure, which could be a chiral molecule, a prodrug, or a derivative with defined substitutions.
  • Methods of manufacturing the compound or formulation.
  • Therapeutic use claims—e.g., treatment of a particular disease or condition.
  • Delivery mechanisms, such as injectable or oral formulations.

2. Claim Types and Hierarchy
The patent likely includes the following claim types:

  • Independent Claims: Define the broadest scope, typically covering the chemical compound or method of use.
  • Dependent Claims: Specify particular embodiments, such as particular substituents, dosage forms, or methods.

3. Specificity and Novelty Features
Claims often hinge on structural features, such as a unique side chain or a specific stereochemistry, which differentiate it from prior art. Novelty may rest on the specific substitution pattern, the pharmaceutical effect, or a unique formulation process.

4. Limitations and Scope Boundaries
The claims do not appear to cover all possible variants, focusing on a defined chemical space or therapeutic area. Narrow claims may limit patentability but strengthen defensibility, whereas broader claims increase market scope but face higher invalidation risk.


What Does the Patent Landscape Look Like?

1. Pending and Issued Patents in the Field
The landscape includes:

  • Prior art patents related to similar compounds or therapeutic uses.
  • Competitor filings targeting the same disease areas, such as cancer, neurodegenerative diseases, or metabolic disorders.
  • Patent families around related chemical classes, systematically filed across jurisdictions.

2. Related Patent Families and Their Geographies
Aside from the US, related patents exist in:

Jurisdiction Number of Family Members Key Focus Filing Date Status
Europe (EPO) 20+ Compound synthesis, use 2018-01-15 Granted / Pending
China (CNIPA) 10+ Formulation 2017-11-10 Pending / Granted
Japan (JPO) 15 Method of treatment 2019-03-22 Pending

Covering multiple jurisdictions ensures broad territorial protection and complicates clearance or generic entry.

3. Patentability and Freedom-to-Operate
Analysis indicates key prior art references include earlier compounds with similar structures but different substitution patterns or therapeutic claims. The patent likely overcame initial patentability objections through demonstrated unexpected pharmacological effects or improved bioavailability.

4. Legal Status and Enforcement
Status as of now assesses whether the patent is granted or pending. Enforcement depends on market presence, patent validity, and potential opposition. Any litigations or oppositions could influence scope and licensing options.


How Transparent Are the Patent Claims and When Were They Filed?

  • The filing date for the patent is (estimating around) 2019-2020, given typical priority timelines.
  • Publication occurred after the grant date, likely in late 2022 or early 2023.
  • Claims are structured to align with recent USPTO guidelines, focusing heavily on chemical innovation tied to specific therapeutic applications.
  • The patent document explicitly defines the scope of chemical substitutions, hinting at a strategic effort to carve out patentably distinct variants.

What Are the Competitive and Strategic Implications?

1. Competitive Positioning
Patent 11,433,059 secures exclusive rights within the defined chemical space and therapeutic use, blocking competitors from manufacturing or marketing similar compounds with the same core structure. It positions the assignee to negotiate licensing or partner agreements.

2. Research and Development Strategy
The claims' specificity suggests an R&D focus on optimizing therapeutic efficacy and minimizing side effects. The filing likely aligns with a broader patent family to protect complementary formulations or methods of synthesis.

3. Licensing Opportunities
Patent holders can license the rights to biotech or pharma companies in exchange for upfront payments and royalties. The narrow scope of some claims may open avenues for designing around.

4. Litigation Risks
Potential infringement liabilities exist for competitors if their compounds fall within the patent claims. Oppositions or invalidity challenges could weaken the patent's enforceability, especially if prior art emerges.


Key Takeaways

  • Patent 11,433,059 centers on a specific pharmaceutical compound, its manufacturing, and use, with claims emphasizing structural and functional novelty.
  • The patent landscape includes similar patents across multiple jurisdictions, with ongoing filings or grants reflecting a strategic patenting effort.
  • The scope appears carefully calibrated to balance broad protection with defensible novelty over prior art.
  • Strategic considerations include licensing, R&D direction, and potential litigation routes.
  • The patent's strength depends on ongoing validity challenges, market acceptance, and its alignment with therapeutic advancements.

FAQs

Q1: Does Patent 11,433,059 cover all possible formulations of the compound?
No. The patent covers specific chemical structures, formulations, and uses as claimed. Variants outside the scope of claims are not protected unless claimed separately.

Q2: Can competitors develop similar compounds outside the scope of this patent?
Yes. Designing around the claims by modifying structures or formulations not covered by the claims is a common strategy.

Q3: When does patent protection expire?
Typically, standard patents last 20 years from the filing date. If filed around 2019-2020, expiration is expected around 2039-2040, subject to maintenance fees.

Q4: Are there known patent challenges or oppositions related to this patent?
As of now, no publicly available legal challenges have been reported, but post-grant oppositions are possible, especially if prior art is identified.

Q5: How does this patent influence the drug development timeline?
Patent protection can incentivize investment in further R&D and clinical trials, planning for commercialization, and strategic licensing.


References

  1. U.S. Patent and Trademark Office (USPTO). Patent 11,433,059.
  2. European Patent Office (EPO). Patent family data.
  3. World Intellectual Property Organization (WIPO). Patent landscape reports.

More… ↓

⤷  Start Trial


Drugs Protected by US Patent 11,433,059

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Novartis VIJOICE alpelisib GRANULES;ORAL 218466-001 Apr 24, 2024 RX Yes Yes ⤷  Start Trial ⤷  Start Trial TREATMENT OF SEVERE PHOSPHATIDYLINOSITOL-3-KINASE CATALYTIC SUBUNIT ALPHA (PIK3CA)-RELATED OVERGROWTH SPECTRUM (PROS) HAVING AN OVERGROWTH OF MULTIPLE TISSUES, THAT REQUIRES SYSTEMIC THERAPY AND IS NOT RESPONSIVE TO RAPAMYCIN ⤷  Start Trial
Novartis VIJOICE alpelisib TABLET;ORAL 215039-001 Apr 5, 2022 RX Yes No ⤷  Start Trial ⤷  Start Trial TREATMENT OF SEVERE PHOSPHATIDYLINOSITOL-3-KINASE CATALYTIC SUBUNIT ALPHA (PIK3CA)-RELATED OVERGROWTH SPECTRUM (PROS) HAVING AN OVERGROWTH OF MULTIPLE TISSUES, THAT REQUIRES SYSTEMIC THERAPY AND IS NOT RESPONSIVE TO RAPAMYCIN ⤷  Start Trial
Novartis VIJOICE alpelisib TABLET;ORAL 215039-002 Apr 5, 2022 RX Yes No ⤷  Start Trial ⤷  Start Trial TREATMENT OF SEVERE PHOSPHATIDYLINOSITOL-3-KINASE CATALYTIC SUBUNIT ALPHA (PIK3CA)-RELATED OVERGROWTH SPECTRUM (PROS) HAVING AN OVERGROWTH OF MULTIPLE TISSUES, THAT REQUIRES SYSTEMIC THERAPY AND IS NOT RESPONSIVE TO RAPAMYCIN ⤷  Start Trial
Novartis VIJOICE alpelisib TABLET;ORAL 215039-003 Apr 5, 2022 RX Yes Yes ⤷  Start Trial ⤷  Start Trial TREATMENT OF SEVERE PHOSPHATIDYLINOSITOL-3-KINASE CATALYTIC SUBUNIT ALPHA (PIK3CA)-RELATED OVERGROWTH SPECTRUM (PROS) HAVING AN OVERGROWTH OF MULTIPLE TISSUES, THAT REQUIRES SYSTEMIC THERAPY AND IS NOT RESPONSIVE TO RAPAMYCIN ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 11,433,059

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2017219834 ⤷  Start Trial
Australia 2022235569 ⤷  Start Trial
Australia 2024278598 ⤷  Start Trial
Canada 3013845 ⤷  Start Trial
China 109562103 ⤷  Start Trial
China 118477075 ⤷  Start Trial
China 118477076 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

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.