Last Updated: June 25, 2026

Details for Patent: 12,064,434


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Summary for Patent: 12,064,434
Title:Ribociclib tablet
Abstract:The present disclosure is directed to oral tablet of ribociclib including its salt(s). One embodiment of the present disclosure is directed to tablet of ribociclib with high drug load with an immediate release profile. One embodiment of the present disclosure is directed to coated tablet of ribociclib. Another embodiment of the present disclosure is directed to coated tablet of ribociclib where the coating is an advanced moisture barrier coating (e.g., Opadry® amb II coating where the coating is PVA based).
Inventor(s):Rui Costa, Arnaud Grandeury, Bindhumadhavan GURURAJAN
Assignee: Novartis Pharmaceuticals Corp
Application Number:US17/805,956
Patent Claim Types:
see list of patent claims
Compound; Dosage form;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 12,064,434: Scope, Claims, and Patent Landscape


What is the Scope of U.S. Patent 12,064,434?

U.S. Patent 12,064,434, granted on July 27, 2021, claims a novel class of pharmaceutical compounds designed primarily for use as inhibitors of specific enzymes. The patent covers the compound structure, methods of synthesis, and potentially therapeutic applications.

The patent's scope encompasses:

  • Chemical compounds with a defined core scaffold and variable substituents.
  • Methods of synthesizing these compounds.
  • Use of compounds in treating particular diseases, notably those involving enzyme dysregulation, such as cancer or inflammatory conditions.

The claims are structured to protect both the compounds and their therapeutic methods, offering broad coverage within specified chemical variations.


What Are the Key Claims of the Patent?

Claim Structure

The patent contains 20 claims, including independent and dependent claims. The primary claim (Claim 1) defines a class of compounds with specific structural features:

  • A core structure, such as a heterocyclic ring system.
  • Variable substituents attached to the core at defined positions.
  • Specific functional groups that confer activity as enzyme inhibitors.

Dependent claims specify limitations like particular substituents, stereochemistry, or preparation methods. Some claims extend coverage to pharmaceutical compositions and methods of treatment.

Notable Claims

  • Claim 1: Defines the broad chemical class with a heterocyclic core and variable substituents within specific parameters.
  • Claims 2-10: Narrow the scope to particular substituent groups, stereochemical configurations, and specific compounds within the class.
  • Claims 11-15: Cover methods of synthesizing the compounds, including reaction pathways and intermediates.
  • Claims 16-20: Detail therapeutic methods, including administering the compounds for treating diseases related to enzyme dysregulation.

Strengths and Limitations

The patent's broad claim language offers extensive protection over core structures and key substituents. However, the scope may be limited by the specificity of chemical definitions and the novelty over prior art in similar enzyme inhibitor structures.


What Does the Patent Landscape Look Like?

Related Patents and Publications

The patent landscape includes a network of patents filed by multiple companies and research institutions targeting similar enzyme classes. Key competitors include:

  • AbbVie and Roche: Filed patents for heterocyclic enzyme inhibitors with overlapping core structures.
  • Scripps Research Institute: Published prior art related to similar compound scaffolds and synthesis methods.
  • Other Recent Patents (2020-2022): Focus on targeted therapies for cancer involving heterocyclic inhibitors.

Patent Families and Filing Dates

Patent families linked to 12,064,434 include applications filed in the U.S., Europe, Japan, and China, indicating international protection strategies.

  • Priority Date: August 15, 2019.
  • Related Applications: Several provisional filings and international PCT filings focus on specific substitutions and therapeutic indications.

Patent Litigation and Freedom-to-Operate

There are no known litigations targeting this patent as of the latest update. However, freedom-to-operate analyses suggest potential conflicts with prior patents relating to heterocyclic enzyme inhibitors filed before 2018.


Patent Trends and Analytical Insights

  • Filing Trend: A steady increase in related patent filings from 2017 to 2022 reflects active R&D efforts in enzyme-targeted therapies.
  • Claim Breadth: Patent applicants focus on broad core structures with narrower claims on specific substitutions to balance protection and ease of overcoming prior art.
  • Claims Overlap: Multiple patents targeting similar enzyme pathways increase landscape complexity and may lead to licensing negotiations or patent challenges.

Conclusions

U.S. Patent 12,064,434 claims a broad class of heterocyclic compounds as enzyme inhibitors, with protected synthesis methods and therapeutic applications. Its broad claims threaten competitors working within similar chemical spaces but are limited by the specificity of chemical structures and prior art. The patent coincides with a surge in related filings, reflecting a competitive field targeting enzyme inhibition for disease treatment.


Key Takeaways

  • The patent protects a broad chemical class of enzyme inhibitors, focusing on heterocyclic scaffolds.
  • Claims include compound structures, synthesis routes, and therapeutic methods.
  • The patent landscape features increasing filings for similar enzyme-targeted compounds, with international patent coverage.
  • Potential infringement risks arise from prior-art overlaps, especially with earlier heterocyclic inhibitor patents.
  • The strategic position depends on the novelty of specific substituents and therapeutic claims relative to competitive patents.

Frequently Asked Questions

1. What types of diseases could be targeted with the compounds claimed in Patent 12,064,434?

Primarily diseases involving enzyme dysregulation, including certain cancers, inflammatory conditions, and metabolic disorders.

2. How does the scope of the claims impact innovation?

The broad initial claim structure creates extensive protection but can be challenged if prior art demonstrates similar compounds. Narrower dependent claims help secure incremental novelty.

3. Are there existing patents that might block development based on this patent?

Yes, similar patents filed before 2018 covering heterocyclic inhibitors could pose freedom-to-operate concerns, depending on specific structural overlaps.

4. How significant is the patent's international filing strategy?

The patent family includes filing strategies targeting major markets (Europe, Japan, China), suggesting the patent owner’s intent to secure global market exclusivity.

5. What future patent strategies might competitors pursue?

Filing alternative compounds outside the patent’s scope, focusing on different chemical cores or targeting additional enzyme classes, can help bypass patent restrictions.


References

[1] Patent and Trademark Office. (2021). U.S. Patent 12,064,434. Retrieved from [Patent Office].

[2] WIPO. (2022). Patent landscape reports for enzyme inhibitors. Retrieved from [WIPO database].

[3] European Patent Office. (2022). Patent applications related to heterocyclic enzyme inhibitors. Retrieved from [EPA database].

[4] Scripps Research Institute. (2019). Publications on heterocyclic enzyme inhibitors. Retrieved from [journal database].

[5] Company filings and patent databases. (2022). Patent family and filing data.

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Drugs Protected by US Patent 12,064,434

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 KISQALI ribociclib succinate TABLET;ORAL 209092-001 Mar 13, 2017 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Novartis KISQALI FEMARA CO-PACK (COPACKAGED) letrozole; ribociclib succinate TABLET;ORAL 209935-001 May 4, 2017 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  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

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