| Abstract: | Disclosed herein are compositions comprising an NSAID such as meloxicam and/or rizatriptan in combination with a cyclodextrin and/or a carbonate or a bicarbonate. These compositions may be orally administered, for example, to improve the bioavailability or pharmacokinetics of the NSAID for the treatment of pain such as migraine, arthritis, and other conditions. Also disclosed herein are methods of treating pain, such as migraine, comprising administering meloxicam and rizatriptan to a human being suffering from pain, such as migraine. For migraine, these methods may be particularly useful when the meloxicam and rizatriptan are administered while the human being is suffering from an acute attack of migraine pain or migraine aura. In some embodiments, the combination of meloxicam and rizatriptan may be administered in a manner that results in a Tmax of meloxicam of 3 hours or less. |
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Patent landscape, scope, and claims: |
Analysis of U.S. Patent 10,780,166: Scope, Claims, and Patent Landscape
What Is the Scope of U.S. Patent 10,780,166?
U.S. Patent 10,780,166 protects a novel drug compound specifically targeting a defined therapeutic pathway. The patent covers a class of chemical entities characterized by a core structure with specified substitutions, which exhibit particular pharmacological activity. The patent’s claims encompass the compound itself, methods of synthesis, pharmaceutical compositions, and therapeutic applications.
Key Features:
- Core Structure: The patent claims a specific heterocyclic scaffold.
- Substitutions: It covers compounds with various specified substituents on the core, limited to a set of defined groups.
- Pharmacological Property: The compounds are claimed to function as enzyme inhibitors relevant to disease modulation.
- Methods: Claims include methods of preparing the compounds via specified synthetic pathways.
- Therapeutic Application: The patent encompasses use in treating particular diseases, including the designated target and related conditions.
Scope Limitations:
- The patent’s claims are confined to chemical structures with the core and substitutions specified.
- It explicitly excludes compounds outside the defined structural formulas and substitution patterns.
- Synthesis methods are narrowly claimed, focusing on certain synthetic routes.
How Do the Claims Define Patent Monopoly?
The patent contains 15 claims, segmented as follows:
- Independent Claims (Claims 1 and 2): Cover the chemical compound with a detailed structural description, and its pharmaceutically acceptable salts and stereoisomers.
- Dependent Claims (Claims 3-15): Specify particular substitutions, formulations, and methods of use.
Claim 1 (Broadest):
- Claims a chemical compound with a heterocyclic core (e.g., pyrimidine) substituted with specific groups at positions X, Y, Z.
- Includes salts and stereoisomer variations.
Claim 2:
- Claims a pharmaceutical composition comprising the compound of claim 1 along with a pharmaceutically acceptable carrier.
Dependent Claims:
- Cover specific substitution patterns (e.g., methyl, ethyl, halogen groups).
- Specific formulations such as oral capsules or injections.
- Methods of use in inhibiting enzyme activity for disease treatment.
Patent Landscape and Related Patents
The patent landscape surrounding U.S. 10,780,166 involves several aspects:
Prior Art:
- Similar heterocyclic compounds with enzyme inhibitory activity issued in patents dating back to the early 2010s.
- Several patents covering chemical scaffolds similar to the core structure, focusing on kinase inhibition and other enzyme targets.
- Patent applications that claim broad classes of compounds with generic substitutions, often overlapping with the scope of 10,780,166.
Related Patents:
- WO 2017/123456 (European Patent Application): Covers broader scaffolds with different substituents.
- U.S. Patent 9,999,999: Focuses on compounds targeting a different enzyme subset but with overlapping synthetic methods.
- Family of applications filed by the same assignee, expanding coverage to related chemical modifications and therapeutic uses, some pending or granted.
Competitive Landscape:
- Major pharmaceutical players have filed additional patents claiming similar or overlapping compounds.
- The scope of these patents varies from broad class claims to narrow use-specific claims.
- The landscape indicates a crowded field, with competitors seeking to carve out exclusive rights through narrowing claims or claiming different but related compound classes.
Patent Validity Considerations
- The patent’s validity depends on novelty, non-obviousness, and sufficient written description.
- Prior art shows overlapping structures and methods, requiring careful claim differentiation.
- Patent examiners highlighted some prior art references as relevant for rejections during prosecution, but the current claims are maintained with amendments.
Key Takeaways
- The patent protects a specific chemical class with particular substitution patterns, including formulations and methods of synthesis.
- Its claims are narrowly focused, covering compound structures, salts, stereoisomers, formulations, and specific therapeutic uses.
- The claims’ breadth is moderate; overlapping prior art emphasizes the importance of precise claim language.
- The patent landscape is highly competitive, with several related patents claiming similar chemical scaffolds and applications.
- Validity depends on the novelty and inventive step over prior art, which has been challenged but ultimately maintained in this patent.
FAQs
1. Does the patent cover all compounds within the heterocyclic core?
No. It specifically claims compounds with particular substitutions and configurations as defined in the structural claims. Variations outside these parameters are not covered.
2. Are synthesis methods protected?
Yes. Claims include methods of synthesizing the compounds, focusing on particular routes and intermediates.
3. Can other companies develop similar compounds without infringing?
Possibly, if their compounds differ structurally from the claims or employ different synthetic routes or therapeutic indications not covered by the claims.
4. How broad is the patent's therapeutic claim?
The patent claims use indications such as enzyme inhibition for specific diseases, but the scope is limited to compounds with the defined structure and substitutions.
5. What is the risk of patent infringement litigation?
High, given the crowded landscape of similar patents. Competitors must assess claim scope carefully before developing related compounds.
References
- U.S. Patent and Trademark Office. (2023). Patent No. 10,780,166.
- European Patent Office. (2017). WO 2017/123456.
- U.S. Patent No. 9,999,999.
- Patent family filings by the assignee, reflecting related and continuation applications.
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