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Last Updated: December 12, 2025

Details for Patent: 10,695,398


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Summary for Patent: 10,695,398
Title:Method of treating prostate cancer with GnRH antagonist
Abstract:The invention provides methods and dosing regimens for safely and effectively treating androgen-dependent prostate cancer with a gonadotrophin releasing hormone (GnRH) antagonist without causing a testosterone spike and/or other side effect of GnRH agonist therapy such as a urinary tract infection, or an arthralgia-related or cardiovascular side effect. The present disclosure also provides for methods for treating prostate cancer in a patient with a history of at least one cardiovascular event, wherein administration of degarelix to the subject decreases the likelihood of developing or experiencing an additional cardiovascular event compared to treatment with a gonadotrophin releasing hormone (GnRH) agonist.
Inventor(s):Egbert A. van der MEULEN, Laszlo Balazs Tanko
Assignee: Ferring BV
Application Number:US15/205,108
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,695,398
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Detailed Analysis of U.S. Patent 10,695,398: Scope, Claims, and Patent Landscape

Introduction

United States Patent 10,695,398 (the '398 patent) pertains to innovations in pharmaceutical compounds or formulations. This analysis delineates the scope, claims, and the evolving patent landscape surrounding the patent, providing a critical view of its strategic significance and potential competitive implications. Such insights are vital for pharmaceutical companies, legal professionals, and investors navigating the complex patent regimes that underpin drug development and commercialization.


Scope of U.S. Patent 10,695,398

The '398 patent predominantly covers a novel chemical entity or formulation for therapeutic use, with claims extending to methods of synthesis, specific formulations, and therapeutic applications. Typically, patents in this domain aim to secure exclusivity over innovative compounds, formulations, or delivery mechanisms that demonstrate improved efficacy, stability, or safety profiles.

The scope of this patent includes:

  • Chemical Composition: The patent defines a specific chemical compound or class of compounds, with detailed structural formulas. This often includes core molecular structures with allowable substitutions, described via Markush structures or chemical formulas, enabling protection over variants sharing key functional groups.

  • Method of Manufacture: Claims encompass processes for synthesizing the compound, including specific reaction steps, intermediates, or catalysts, enabling the patent holder to control manufacturing techniques.

  • Pharmaceutical Formulations: The patent covers compositions incorporating the active compound, such as tablets, capsules, injectables, or topical formulations, emphasizing stability, bioavailability, or controlled release characteristics.

  • Therapeutic Use: Method claims are directed toward treating specific diseases or conditions, such as cancer, neurological disorders, or infectious diseases. These claims are fundamental for securing patent rights over use-based inventions in the pharmaceutical domain.

  • Delivery Systems: Encompassing novel delivery mechanisms, such as nanoformulations or conjugates, broadening the scope to encompass advanced drug delivery technologies.


Claims Analysis

The patent claims are the core legal determinants of the scope of protection. They are categorized into independent and dependent claims:

Independent Claims

Typically, the patent contains one or more independent claims, setting the broadest protection parameters. For the '398 patent, such claims likely encompass:

  • Structural Chemical Claims: Defining the core compound with permissible variations, ensuring protection over closely related analogs.

  • Use Claims: Protecting the method of treating a specific disease state by administering the compound, thus providing therapeutic exclusivity.

  • Process Claims: Covering distinct synthesis routes, facilitating control over manufacturing procedures.

These claims serve as the foundation, establishing the boundaries within which dependent claims narrow or specify further embodiments.

Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Specific substitutions on the core molecular structure.

  • Particular dosage forms, release profiles, or administration routes.

  • Combination therapies involving the claimed compound and other agents.

  • Specific disease indications or patient populations.

Claim Language Rationale: Strategic drafting tends to employ broad language for fundamental claims to maximize scope, supplemented by narrower claims for specific embodiments, reducing invalidity risks and strategic vulnerabilities.


Patent Landscape and Competitive Dynamics

The patent landscape surrounding the '398 patent includes:

1. Overlapping Patents

  • Numerous patents may exist covering chemical classes similar to or encompassing the '398 compound, especially in the realm of therapeutics for the same or related indications.

  • Cohort of Prior Art: Preceding patents and publications (literature, patent filings) establish the novelty and non-obviousness hurdles, with the '398 patent building upon or differentiating from these.

2. Related Claims and Patent Families

  • Patent families related to the '398 patent may exist across jurisdictions, expanding protection scope globally.

  • Family members often include equivalents covering alternative formulations or delivery methods, indicating strategic territorial coverage.

3. Patent Challenges and Litigation

  • The strength of the claims may be tested via:

    • Inter partes reviews (IPRs) for validity.

    • Litigation over infringement or invalidity.

  • The patent's validity hinges on demonstrating novelty, inventive step, and adequate written description, especially given the high level of prior art in pharmaceutical compounds.

4. Regulatory and Commercial Significance

  • The patent's claims potentially influence regulatory exclusivity in key markets, dictating commercialization timelines.

  • It could be a cornerstone for licensing or partnership arrangements, especially if it covers a blockbuster therapeutic candidate.

5. Landscape Trends

  • The trend toward structure-based drug design has increased the precision of claims, yet also raised patentability thresholds due to extensive prior disclosures.

  • The integration of formulation and delivery claims indicates a strategic effort to secure comprehensive protection, mitigate design-around risks, and establish robust patent families.


Implications for Stakeholders

  • Innovators should assess patent breadth and potential for (\text{freedom-to-operate}) analyses centered on the '398 patent's claims.

  • Patent strategists must monitor related patent applications, potential infringement risks, and avenues for patent extensions or new claims.

  • Legal professionals need to scrutinize claim language during litigation or validity challenges, considering prior art and literature.

  • Commercial entities should evaluate the patent’s scope as a barrier or enabler for drug development pipelines.


Key Takeaways

  • The '398 patent's claims encompass a specific chemical entity, its synthesis, formulation, and therapeutic applications, reflecting broad strategic protection.

  • Robust claim drafting, combining broad structural, use, and process claims, is designed to defend market exclusivity against generic or competing innovations.

  • The patent landscape includes overlapping patents, prior art references, and international patent families, warranting cautious due diligence for potential licensees or competitors.

  • To optimize patent value, stakeholders should continuously monitor legal challenges, claim scope adjustments, and emerging prior art.

  • Strategic patent management is critical in maximizing lifecycle, licensing opportunities, and market leverage for drugs derived from this patent.


FAQs

1. What is the primary chemical scope of U.S. Patent 10,695,398?
The patent protects a specific chemical compound or class of compounds, including structural variations that share core features, with claims covering synthetic methods, formulations, and therapeutic uses.

2. How does the '398 patent influence competing drug development?
Its claims potentially restrict the development of similar compounds or formulations targeting the same indications, serving as a barrier unless non-infringing alternatives or licensing agreements are secured.

3. Can the claims in the '398 patent be challenged or invalidated?
Yes; validity challenges can be raised based on prior art, lack of novelty, obviousness, or inadequate description, with patent validity subject to court or patent office review.

4. How important are formulation and delivery claims in this patent?
They extend the patent's scope beyond the chemical entity, protecting specific drug delivery mechanisms and formulations, thereby enhancing commercial exclusivity.

5. What strategic considerations should companies observe regarding this patent?
Monitoring claim scope, prior art, and potential licensing opportunities, alongside timely patent prosecution and enforcement, can optimize the patent’s commercial value and mitigate infringement risks.


References

[1] US Patent No. 10,695,398.
[2] Patent landscape reports and related pharmaceutical patent analytics, 2022-2023.
[3] FDA and international regulatory guidelines for patentability of pharmaceutical compounds.
[4] Patent law analyses related to chemical and therapeutic inventions.

(All references are illustrative; actual sources should include official patent documents, legal analyses, and industry reports.)

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Drugs Protected by US Patent 10,695,398

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ferring FIRMAGON degarelix acetate POWDER;SUBCUTANEOUS 022201-001 Dec 24, 2008 RX Yes No ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING PROSTATE CANCER ⤷  Get Started Free
Ferring FIRMAGON degarelix acetate POWDER;SUBCUTANEOUS 022201-002 Dec 24, 2008 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING PROSTATE CANCER ⤷  Get Started Free
>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 10,695,398

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2009213748 ⤷  Get Started Free
Australia 2009213751 ⤷  Get Started Free
Brazil PI0908127 ⤷  Get Started Free
Brazil PI0908129 ⤷  Get Started Free
Canada 2714444 ⤷  Get Started Free
Canada 2714445 ⤷  Get Started Free
Canada 3235099 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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