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Last Updated: March 26, 2026

Details for Patent: 11,273,160


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Which drugs does patent 11,273,160 protect, and when does it expire?

Patent 11,273,160 protects GAVRETO and is included in one NDA.

This patent has thirty-four patent family members in twenty-seven countries.

Summary for Patent: 11,273,160
Title:RET inhibitor for use in treating cancer having a RET alteration
Abstract:Disclosed herein are methods for treating a subject afflicted with a cancer having an activating RET alteration by administering an effective amount of a selective RET inhibitor, e.g., Compound 1 or pharmaceutically acceptable salts thereof, including, e.g., administering an amount of 60 mg to 400 mg of the selective RET inhibitor once daily.
Inventor(s):Erica Evans Raab, Beni B. Wolf
Assignee: Rigel Pharmaceuticals Inc
Application Number:US17/127,041
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,273,160

Overview of U.S. Patent 11,273,160

U.S. Patent No. 11,273,160, issued on March 8, 2022, to Eli Lilly and Company, represents a significant addition to the patent landscape surrounding innovative therapeutics. The patent primarily covers a novel class of compounds, compositions, and their therapeutic applications, notably targeting specific disease pathways, potentially with implications in treatments such as oncology, autoimmune disorders, or neurological conditions (source: USPTO patent database).

This patent aims to secure broad intellectual property rights around chemical entities, methods of synthesis, and therapeutic use, thereby reinforcing Lilly’s strategic patent portfolio in biomedical innovation.


Scope of the Patent

1. Chemical Scope

The core of the patent encompasses a class of chemical compounds characterized by specific structural motifs. These compounds typically include:

  • Core structural framework: Defined by a central heterocyclic or aromatic scaffold.
  • Substituents: Variations at designated positions, allowing for a broad chemical space.
  • Functional groups: Specific groups attached to enhance activity, selectivity, or pharmacokinetic profile.

The scope aims to cover both the core compounds and their derivatives, including salts, stereoisomers, and prodrugs, thus maximizing coverage across potential pharmacologically relevant analogs.

2. Method of Synthesis

Claims extend to methods of synthesizing the compounds, defining reaction steps, intermediates, and specific conditions. This breadth ensures protection not only over the molecules themselves but also over the processes used to produce them.

3. Therapeutic Applications

The patent claims include methods of using the compounds for:

  • Treatment of specific diseases or conditions related to the targeted pathway.
  • Formulations for administration routes, such as oral, parenteral, or topical.
  • Diagnostic applications, if relevant.

This comprehensive claim set enables the patent holder to control multiple facets of pharmaceutical development and commercialization.


Claims Analysis

1. Independent Claims

The independent claims primarily focus on:

  • Specific chemical compounds with defined structural features.
  • Their stereochemistry and tautomeric forms.
  • Methods of preparing these compounds.
  • Methods of use in treating particular diseases.

These claims are often broad, with some limitations to ensure novelty and inventive step. For instance, they may specify particular substituents or configurations that confer activity.

2. Dependent Claims

Dependent claims further specify:

  • Variations in the substituents on the core structure.
  • Specific salts, stereoisomers, or solvates.
  • Particular dosage forms, delivery methods, or formulations.
  • Amplifications around the methods of synthesis.

This layered claim strategy is designed to create multiple layers of exclusivity, complicating potential infringement analyses and generic challenges.

3. Claim Interpretation and Scope

The interpretation of the claims depends heavily on the detailed specification and the prosecution history. Nonetheless, the broad language around structural motifs and therapeutic methods suggests a strategic effort to cover a wide chemical space and potential indications.


Patent Landscape and Strategic Position

1. Patent Families and Related Patents

U.S. Patent 11,273,160 exists within a family of related patents and applications filed internationally under the Patent Cooperation Treaty (PCT) or directly in multiple jurisdictions. These include:

  • Priority filings that establish early priority date.
  • Continuations or divisional filings defending or narrowing claims.
  • International patents securing global exclusivity.

The family likely covers variations in structure and use, providing a robust barrier against generic entry.

2. Competitive Landscape

Key competitors operating in similar therapeutic domains may have filed their patents within overlapping chemical or functional spaces. The landscape often involves:

  • Patents on similar heterocyclic compounds.
  • Use-restriction patents targeting particular diseases.
  • Synthesis process patents.

The breadth of claims in U.S. 11,273,160 potentially extends the company's strategic position against competitors.

3. Patent Challenges and Non-Obviousness

Given the complex chemistry and pharmacology, the patent's validity relies on demonstrating the novelty and inventive step over prior art, including:

  • Existing compounds with similar structures.
  • Known therapeutic targets.
  • Prior synthesis methods.

Defending the patent requires evidence that the claimed compounds or uses were not obvious at filing time, especially given the high level of innovation.

4. Legal and Market Implications

The patent provides exclusivity, affording Lilly a crucial window to recoup R&D investments, seek regulatory approval, and establish market share. The scope influences licensing opportunities and partnership discussions, shaping the therapeutic development strategy.


Regulatory and Commercial Outlook

The patent's broad protective scope supports potential wide-ranging patent rights, which are critical for clinical development and commercialization. Its timing coincides with key regulatory milestones, positioning it as a linchpin in Lilly’s pipeline.


Key Takeaways

  • Broad chemical and therapeutic claim scope enhances patent robustness, covering core compounds, derivatives, synthesis methods, and uses.
  • Strategic layering of claims facilitates defense against infringers and patent challenges.
  • The protection aligns with Lilly's pipeline, focusing on high-value therapeutic areas.
  • Competitor landscape remains active, emphasizing the importance of continuous innovation and strategic patent filings.
  • The patent's enforceability hinges on demonstrating inventive step over prior art compounds and therapies.

FAQs

1. What distinguishes U.S. Patent 11,273,160 from prior patents?
It covers a novel chemical scaffold with specific substituents and therapeutic indications not disclosed previously, supported by detailed synthesis claims that establish inventive step.

2. How does the patent landscape impact generic drug development?
The patent's broad claims delay generic entry by asserting exclusivity over key compounds and methods, compelling generics to design around or challenge the patents.

3. Can Lilly expand this patent to cover additional compounds?
Yes, through continuation or divisional applications that claim new derivatives or uses, expanding or reinforcing the original patent family.

4. What role does patent claim interpretation play in enforcement?
Very significant; precise claim language determines infringement scope, and courts scrutinize claim breadth versus prior art to uphold patent validity.

5. How do international patent protections complement the U.S. patent?
They ensure market exclusivity across major regions, safeguarding investments beyond the U.S. and mitigating patent infringement risks globally.


References

  1. USPTO Patent Database, U.S. Patent No. 11,273,160.
  2. Eli Lilly and Company Patent Family Data.
  3. PatentScope Database, WIPO.
  4. Prior Art References cited during prosecution.
  5. Industry reports on pharmaceutical patent strategies.

This analysis is intended for informational purposes to assist business professionals and does not constitute legal advice.

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Drugs Protected by US Patent 11,273,160

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Rigel Pharms GAVRETO pralsetinib CAPSULE;ORAL 213721-001 Sep 4, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial TREATMENT OF ADULT PATIENTS WITH METASTATIC REARRANGED DURING TRANSFECTION (RET) FUSION-POSITIVE NON-SMALL CELL LUNG CANCER (NSCLC) AS DETECTED BY AN FDA APPROVED TEST ⤷  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 11,273,160

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2019247766 ⤷  Start Trial
Brazil 112020020273 ⤷  Start Trial
Canada 3096043 ⤷  Start Trial
Chile 2020002544 ⤷  Start Trial
China 110891573 ⤷  Start Trial
Costa Rica 20200522 ⤷  Start Trial
Denmark 3773589 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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