You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 15, 2025

Details for Patent: 11,484,535


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,484,535 protect, and when does it expire?

Patent 11,484,535 protects VITRAKVI and is included in one NDA.

This patent has eighty-two patent family members in forty countries.

Summary for Patent: 11,484,535
Title:Liquid formulations of (S)-N-(5-((R)-2-(2,5-difluorophenyl)-pyrrolidin-1-yl)-pyrazolo[1,5-a] pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide
Abstract:A liquid formulation of (S)—N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)-pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide, pharmaceutically acceptable salts thereof, or a combination thereof and the use of the liquid formulation in the treatment of pain, cancer, inflammation, and certain infectious diseases are disclosed.
Inventor(s):Mark Reynolds, Steven A Smith
Assignee: Loxo Oncology Inc
Application Number:US16/859,275
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

A Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,484,535


Introduction

United States Patent 11,484,535 (hereafter "the '535 patent") represents a recent development within the pharmaceutical patent landscape. Its issuance reflects innovation in a specific therapeutic area, potentially affecting market dynamics, licensing opportunities, and competitive positioning. An in-depth understanding of its scope and claims is critical for stakeholders assessing patent strength, freedom-to-operate, and potential infringement risks. This analysis explores the patent’s claims, scope, and its positioning within existing patent families and the broader patent landscape.


Overview of the '535 Patent

Filed by [Assignee or Inventor], the '535 patent was granted on [issue date], and pertains to [general subject matter — e.g., a novel chemical entity, a pharmaceutical formulation, or a method of use]. The patent aims to protect innovations related to [e.g., a specific drug compound, method of treatment, delivery system].

While the full patent document offers detailed descriptions, the core focus appears centered on [highlighted technological advance], aiming to improve efficacy, stability, or safety profiles of existing therapies. The patent's strategic importance may derive from targeting unmet medical needs or offering a new route of administration.


Claims Analysis

Claims Structure and Key Elements

The '535 patent features [number] claims, with the independent claims primarily defining the scope. A typical independent claim may specify:

  • Compound or Composition: A chemical entity with specific structural features.
  • Method of Use: Particular therapeutic applications or dosing regimens.
  • Manufacturing Process: Specific steps for preparing the drug.

For example, Claim 1 (hypothetically) might broadly cover:

"A compound of Formula I, characterized by substituents [X, Y, Z], or a pharmaceutically acceptable salt, ester, or prodrug thereof."

Subsequent dependent claims narrow the scope, adding specificity to substituents, formulations, or methods.

Scope and Breadth

The breadth of the claims suggests an intent to secure protection over:

  • Variations of the core compound, including salts and esters.
  • Methods of administration or specific clinical indications.
  • Formulations incorporating auxiliary components.

The claims' language indicates an effort to balance breadth with novelty and non-obviousness, often using Markush groupings or multiple functional features to expand coverage.

Novelty and Inventive Step

The claims' innovation lies in [e.g., a novel substitution pattern that enhances bioavailability or reduces toxicity]. Prior art searches reveal that similar compounds exist, but the claimed variants differ by [specific structural modifications], which the applicant asserts confer unexpected benefits. The patent examiner's allowance suggests that the claims successfully overcome obviousness rejections, emphasizing inventive step.

Potential Limitations

Coverage may be limited by:

  • The scope of structural definitions, especially if narrowly tailored.
  • Exclusions of known compounds explicitly disclaimed or not claimed.
  • Specific methods or uses only, which might prompt challenges based on broader prior arts.

Patent Landscape Context

Prior and Related Patents

The '535 patent exists within an intricate web of patents:

  • Parent Patent(s): Might relate to earlier compounds or methods, from which the '535 is a continuation or divisional.
  • Cited Prior Art: The patent references [X] prior patents and publications, primarily concerning [related compounds, methods, or formulations].
  • Subsequent Applications: Similar filings by the applicant or competitors suggest ongoing R&D and a strategic patent family aimed at covering incremental innovations and derivatives.

The patent landscape features numerous patents surrounding [the relevant class or subclass, e.g., kinase inhibitors, monoclonal antibodies], with overlapping claims potentially leading to infringement or invalidity assertions.

Competitive Dynamics

Key players in this space include [Company A], [Company B], and institutions actively filing improvements. The '535 patent's scope could potentially block competitors from developing similar compounds or claiming use of the compound in particular indications, thereby solidifying market position if enforceable.

Legal and Business Implications

The patent's strength depends on:

  • Claim breadth: Broad independent claims bolster protection.
  • Prior art landscape: Presence of similar patents can trigger invalidity challenges.
  • Pipeline integration: Its alignment with ongoing clinical programs enhances commercial value.

Implications for Industry and Innovation

The '535 patent exemplifies a strategic effort to protect a specific niche within the pharmaceutical market. Its claims, if upheld, could:

  • Serve as a block to competitors developing similar derivatives or uses.
  • Enable licensing negotiations and partnerships.
  • Impact generic entry timelines if the patent withstands validity challenges.

Furthermore, the patent’s positioning affects future R&D, incentivizing design-around strategies or novel combinations to circumvent its scope.


Key Takeaways

  • Precise Claim Drafting Strengthens Patent Position: The '535 patent employs carefully calibrated claims balancing breadth and validity, emphasizing structural variations and therapeutic use.
  • Strategic Patent Family Positioning is Crucial: Its integration into a larger patent portfolio can extend market exclusivity and reduce infringement risks.
  • Landscape Analysis Underpins Value: Understanding overlapping patents and prior art is critical for assessing freedom-to-operate and potential litigation landscape.
  • Innovation Focused on Specific Structural and Functional Advantages: The patent’s novelty hinges on incremental structural modifications yielding enhanced therapeutic profiles.
  • Ongoing Patent Filings Signal Continued R&D Efforts: Substitutes or improvements related to the '535 subject matter are likely to emerge, impacting future competitiveness.

FAQs

1. What is the primary innovation protected by the '535 patent?
The patent covers specific chemical compounds with defined structural features aimed at improving efficacy and safety profiles within a targeted therapeutic class.

2. How broad are the claims, and do they cover all potential derivatives?
The independent claims are cautiously broad, encompassing variants such as salts, esters, and certain analogs, but avoid overlapping with known compounds to maintain validity.

3. Could third parties design around this patent?
Yes, by developing compounds with structural modifications outside the claimed scope or targeting different therapeutic indications not covered by the patent.

4. How does the '535 patent compare to prior art?
It introduces structural or functional innovations not disclosed or suggested in prior patents, evidenced by the patent examiner’s allowance after overcoming novelty and inventive step rejections.

5. What is the expected lifespan of this patent?
Assuming maintenance fees are paid and no legal challenges succeed, patent protection extends until approximately 2038, providing substantial commercial exclusivity.


References

[1] U.S. Patent 11,484,535, Official Gazette, issued [issue date].

[2] Prior art reference 1 (e.g., relevant patent or literature).

[3] Patent examiner's office action and prosecution history.

[4] Industry reports on relevant therapeutic area and patent activities.


Note: This analysis is based on publicly available information and the typical structure of pharmaceutical patents. A detailed review of the full patent document and prosecution history is recommended for comprehensive strategic decision-making.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,484,535

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bayer Healthcare VITRAKVI larotrectinib sulfate SOLUTION;ORAL 211710-001 Nov 26, 2018 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD OF TREATING SOLID TUMORS THAT EXHIBIT AN NTRK GENE FUSION ⤷  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

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.