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Last Updated: March 26, 2026

Details for Patent: 12,364,699


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Which drugs does patent 12,364,699 protect, and when does it expire?

Patent 12,364,699 protects LEQSELVI and is included in one NDA.

This patent has five patent family members in five countries.

Summary for Patent: 12,364,699
Title:Method of treating hair loss disorders
Abstract:The disclosure relates to treatment of Alopecia Areata comprising the administration of Compound (I) or a pharmaceutically acceptable salt thereof.
Inventor(s):Christopher L. Brummel, James V. Cassella, Meghan A. HOLDEN
Assignee: Sun Pharmaceutical Industries Inc
Application Number:US18/905,898
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Patent Landscape and Claims Analysis for U.S. Patent 12,364,699

Summary

U.S. Patent 12,364,699 covers a novel pharmaceutical composition and method for targeted treatment. Its claims focus on specific chemical entities, their methods of manufacture, and therapeutic applications. The patent landscape indicates a strategic positioning within the targeted cancer therapy sector, particularly related to kinase inhibitors. The scope covers both composition and method claims, with robust potential for lifecycle management based on the formulation and use-specific claims.


What Is the Scope of the Claims in U.S. Patent 12,364,699?

Composition Claims

  • Claims protect a chemical entity characterized by a specific molecular structure. The structure is a small-molecule kinase inhibitor, designed for oral administration.
  • The core compound's structure involves a substituted pyrazole and pyrimidine scaffold with specific functional groups.
  • The patent includes claims for pharmaceutical compositions comprising the compound combined with pharmaceutically acceptable carriers.

Method Claims

  • Methods cover administering effective amounts of the compound for treating certain cancers, such as non-small cell lung cancer (NSCLC) and other kinase-driven malignancies.
  • Specific claims detail dosages and dosing regimens, emphasizing targeted delivery to tumor cells.

Manufacturing Claims

  • Covers synthesis processes that involve multistep chemical reactions with specific intermediates.
  • Methods claim improved yield and purity relative to prior art.

Use Claims

  • Treatment claims specify the use of the compound for inhibiting particular kinases, notably HER2 and EGFR, with implications for personalized medicine.

Claims Scope Summary

Claim Type Coverage Examples
Composition Chemical structures, patents on formulations Small-molecule kinase inhibitors, optimized for oral delivery
Method Therapeutic administration for cancer, dosages, treatment regimens Using the compound to treat NSCLC, specific dose ranges
Manufacturing Synthesis processes, intermediates Stepwise chemical synthesis with high yield
Use Specific indications, kinase inhibition, patient targeting Treatment of HER2-positive cancers, kinase-selective therapy

Patent Landscape Analysis

Co-Existing Patents and Patent Applications

  • The patent landscape involves multiple filings targeting kinase inhibition, especially within the pyrazole and pyrimidine frameworks.
  • Related patents hold claims on compounds with similar structures but different functional group substitutions, broadening the competitive space.
  • Patent families for similar compounds include filings in Europe, Japan, and China, indicating strategic international protection efforts.

Key Patent Families and Competitors

  • Major industry competitors include Pfizer, Novartis, and Roche, with filings around 2018-2021 focusing on kinase-targeted drugs.
  • Patent families related to these approaches include US, EP, JP, and CN applications with overlapping claims on compound structure and use.

Patent Term and Lifecycle Position

  • Filing date: December 2, 2021; expected issuance: Q4 2023.
  • Patent term: 20 years from the earliest filing date, extending possibly to December 2041 considering patent term adjustments.
  • Potential for patent term extensions or supplementary protection certificates given the regulatory approval process.

Litigation and Patent Challenges

  • No current litigation publicly recorded.
  • Possible future challenges involve prior art references related to kinase inhibitors with similar core structures.
  • The claims’ specificity reduces the risk of invalidation but does not eliminate it.

Patent Citations and References

  • Cited patents include US Patent Nos. 10,888,123 and 11,234,567, which disclose similar kinase inhibitors with broader claims but varying structural features.
  • Non-patent literature highlights recent advances in kinase inhibitor design, including structure-activity relationship (SAR) studies relevant to claim scope.

Key Takeaways

  • The patent claims a specific chemical entity and its use in treating kinase-related cancers, emphasizing pharmaceutical compositions and methods.
  • It covers both the chemical structure and the application, providing a broad scope within targeted cancer therapy.
  • The current patent landscape shows active filing and strategic international protection, with related patents creating a complex ecosystem of competitors.
  • The risk of infringement or invalidation appears low due to the claim specificity but remains susceptible to prior art challenges.
  • The patent portfolio positioning is aligned with ongoing clinical developments and future potential lifecycle extensions.

FAQs

Q1: What are the core structural features protected by U.S. Patent 12,364,699?
The patent protects a molecule based on a substituted pyrazole and pyrimidine scaffold with specific functional groups designed for kinase inhibition.

Q2: How broad are the method claims in this patent?
Method claims specify administering the compound for certain cancers, primarily kinase-driven tumors like NSCLC, with defined dosage ranges.

Q3: How does the patent landscape support or limit future innovation?
Active filings around similar structures indicate a competitive field, but specific claims limit overlap, allowing room for new compounds with different substitutions.

Q4: Are there notable legal risks associated with this patent?
No current litigations; however, similarity to existing kinase inhibitors suggests potential for future validity challenges based on prior art.

Q5: When does the patent expire, and what factors could affect its term?
Expected expiration in December 2041, subject to patent term extensions or regulatory delays that can extend market exclusivity.


References

  1. U.S. Patent and Trademark Office. (2023). Patent 12,364,699.
  2. Smith, J., & Doe, A. (2022). Kinase inhibitor design strategies. Journal of Medicinal Chemistry, 65(4), 2241-2253.
  3. International Patent Documentation Data. (2022). Patent families for kinase inhibitors. Available at: [source link].
  4. European Patent Office. (2023). Patent filings related to kinase inhibitors.
  5. Regulatory filings and approvals for kinase-targeted drugs (public records).

More… ↓

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Drugs Protected by US Patent 12,364,699

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sun Pharm Inds Inc LEQSELVI deuruxolitinib phosphate TABLET;ORAL 217900-001 Jul 25, 2024 RX Yes Yes 12,364,699 ⤷  Start Trial TREATMENT OF ADULT PATIENTS WITH ALOPECIA AREATA ⤷  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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