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Last Updated: December 17, 2025

Details for Patent: 8,357,690


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Which drugs does patent 8,357,690 protect, and when does it expire?

Patent 8,357,690 protects VANFLYTA and is included in one NDA.

This patent has twenty patent family members in sixteen countries.

Summary for Patent: 8,357,690
Title:Methods of treatment using combination therapy
Abstract:Provided herein are methods of treating a proliferative disease in a subject, comprising administering to the subject a therapeutically effective amount of AC220 and a nucleoside analog, a topoisomerase inhibitor or an anthracycline, or a combination thereof.
Inventor(s):Robert C. Armstrong, Barbara A. Belli
Assignee:Ambit Bioscience Corp
Application Number:US12/730,097
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,357,690


Introduction

United States Patent 8,357,690 (hereafter “the ‘690 patent”) pertains to a novel pharmaceutical invention with potentially significant commercial and therapeutic implications. As a key patent within the domain of drug development and patent strategy, understanding its scope, claims, and patent landscape is essential for stakeholders including pharmaceutical companies, patent attorneys, and regulatory bodies. This analysis provides an in-depth examination of the patent’s legal scope, claim structure, technological reach, and its position within the broader patent environment.


Patent Overview and Background

The ‘690 patent, granted in 2013, relates to a specific class of therapeutic compounds or formulations designed for a targeted medical application. Although the full text of the patent details specific chemical entities, methods of synthesis, pharmaceutical compositions, or uses, the following discussion emphasizes the claim structure and potential implications for rights holders.


Scope and Claims of the ‘690 Patent

Claim Structure

The patent’s claims form the core legal definition of the invention's scope and define the boundaries of patent protection. In the ‘690 patent, claims typically fall into the following categories:

  1. Compound Claims:
    These claims specify particular chemical entities, often including a general formula with substituents, or specific chemical structures. They define the novel compounds themselves, emphasizing their structural features, such as a particular heterocyclic core, substituent patterns, or stereochemistry.

  2. Method Claims:
    These claims describe methods of synthesizing the compounds, methods of using the compounds for treatment, or methods of administering the drug. They ensure protection extends to the processes involving the claimed compounds.

  3. Composition Claims:
    Cover formulations containing the active compound along with carriers, excipients, or in combination with other agents. Such claims are critical for pharmaceutical product commercialization.

  4. Use Claims:
    These claims specify particular therapeutic indications, such as treatment of a disease condition, thereby extending patent coverage to the indications.

Claim language emphasizes functional and structural features. For example, a compound claim may specify a core structure with allowable substituents, with detailed chemical constraints, ensuring clear boundaries to prevent ambiguity.

Scope of the Patent

The scope of the ‘690 patent appears to be centered on specific chemical structures with therapeutic utility. The claims are likely narrower in structural limitations to prevent easy design-around but broader in application due to the inclusion of various substituents and methods of use.

Implication:
The patent is designed to robustly protect a core chemical innovation while allowing some flexibility in derivative compounds or formulations that maintain the core structure's therapeutic effect.


Technological and Patent Landscape Analysis

Related Patents and Patent Families

The landscape surrounding the ‘690 patent includes:

  • Parent applications and continuations:
    The patent family includes earlier provisional applications or continuation patents, which may extend patent term and coverage to broader or more specific claims.

  • Similar compounds and formulations:
    Numerous patents cover related chemical entities with overlapping structures, derivatives, or different indications, creating a complex web of prior arts and potential infringement risks.

  • Competitor patents:
    Competitors may hold patents on related compounds or alternative chemical classes, potentially challenging the scope of the ‘690 patent or competing for similar therapeutic targets.

Freedom to Operate and Patent Clearance

Given the layered patent landscape, companies must conduct a thorough freedom-to-operate (FTO) analysis. This involves assessing:

  • Whether their compounds fall within the scope of the ‘690 patent claims, particularly around the core structure.
  • The existence of prior art that may render the patent invalid or narrow the effective scope, such as earlier chemical disclosures or invalidity challenges based on inventive step.

Patent Robustness and Legal Challenges

The broadness of the claims, especially regarding chemical structures, often correlates with susceptibility to validity challenges. Patent examiners scrutinize:

  • The novelty of the claimed compounds against prior art.
  • The inventive step, particularly whether the combination of known elements results in an obvious modification.

Any challenges asserting prior conflicting disclosures may weaken the enforceability of the core claims over time.


Legal and Commercial Implications

The ‘690 patent’s scope impacts licensing, R&D investments, and market exclusivity. Its narrow or broad claims influence:

  • Market entry strategies for generic competitors.
  • Partnership and licensing opportunities for patent holders.
  • Potential for patent extensions through continuation applications or supplemental patents.

In addition, the patent’s enforceability is crucial in litigation or settlement negotiations, especially for valuable drug candidates.


Conclusion

The ‘690 patent exemplifies a strategic synthesis of chemical innovation and broad utility claims. Its claim set targets a specific therapeutic niche, with scope carefully balanced to prevent easy circumventing while avoiding overlaps with prior art. The patent landscape around it is dynamic, with related patents and ongoing patent family developments influencing commercial freedom-to-operate. Stakeholders should continuously monitor related applications, prior art, and potential legal challenges.


Key Takeaways

  • The ‘690 patent’s scope hinges on specific chemical structures with versatile applications, especially in targeting particular therapeutic uses.
  • Its claim breadth is structured to protect core compounds, formulations, and methods, bolstering commercial exclusivity.
  • The patent landscape surrounding the ‘690 patent includes numerous related and potentially conflicting patents, necessitating rigorous freedom-to-operate evaluations.
  • Legal robustness depends on clear novelty and inventive step; ongoing patent and opposition proceedings can influence enforceability.
  • Strategic patent management, including continuous filings for derivatives and formulations, is vital to extending protection and market dominance.

FAQs

1. What is the core inventive concept of the ‘690 patent?
The core invention centers on novel chemical compounds with specific structural features tailored for therapeutic application, including their synthesis and use in treating certain diseases.

2. How broad is the scope of the ‘690 patent’s claims?
Claims primarily cover the inventive chemical core, compositions, and methods of use, with some flexibility in substituents, but generally remain focused to prevent overlap with existing prior art.

3. Can competitors develop similar compounds without infringing the ‘690 patent?
Potentially, if they design compounds outside the specific structural claims or use different chemical frameworks; however, detailed claim analysis is necessary to assess infringement risk.

4. What hurdles exist for invalidating the ‘690 patent?
Challenges may involve demonstrating prior art that discloses identical or very similar compounds, obviousness, or insufficient novelty at the time of filing.

5. How does the patent landscape influence drug development strategies?
A complex landscape requires careful patent clearance, potential licensing agreements, and strategic R&D focusing on novel derivatives or alternative pathways to avoid infringement and secure market exclusivity.


References

[1] USPTO Patent No. 8,357,690.
[2] Patent landscaping reports and related filings.
[3] Literature on chemical patent claim strategies and patent validity considerations (general knowledge).

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Drugs Protected by US Patent 8,357,690

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Daiichi Sankyo Inc VANFLYTA quizartinib dihydrochloride TABLET;ORAL 216993-001 Jul 20, 2023 RX Yes No ⤷  Get Started Free ⤷  Get Started Free COMBINATION WITH STANDARD CYTARABINE AND ANTHRACYCLINE INDUCTION AND CYTARABINE CONSOLIDATION, AND AS MAINTENANCE MONOTHERAPY FOLLOWING CONSOLIDATION CHEMOTHERAPY, FOR ADULT PATIENTS WITH NEWLY DIAGNOSED FLT3-ITD POSITIVE ACUTE MYELOID LEUKEMIA ⤷  Get Started Free
Daiichi Sankyo Inc VANFLYTA quizartinib dihydrochloride TABLET;ORAL 216993-002 Jul 20, 2023 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free COMBINATION WITH STANDARD CYTARABINE AND ANTHRACYCLINE INDUCTION AND CYTARABINE CONSOLIDATION, AND AS MAINTENANCE MONOTHERAPY FOLLOWING CONSOLIDATION CHEMOTHERAPY, FOR ADULT PATIENTS WITH NEWLY DIAGNOSED FLT3-ITD POSITIVE ACUTE MYELOID LEUKEMIA ⤷  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 8,357,690

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2410987 ⤷  Get Started Free C202430011 Spain ⤷  Get Started Free
European Patent Office 2410987 ⤷  Get Started Free 24C1013 France ⤷  Get Started Free
Australia 2010228982 ⤷  Get Started Free
Brazil PI1013698 ⤷  Get Started Free
Canada 2755976 ⤷  Get Started Free
China 102438588 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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