| Abstract: | Pharmaceuticals compositions comprising the 2S, 4R, ketoconazole enantiomer or its pharmaceutically acceptable salts, hydrates, and solvates, that are substantially free of the 2R, 4S ketoconazole enantiomer are useful to reduce cortisol synthese and for the treatment of type 2 diabetes, hyperglycemia, obesity, insulin resistance, dyslipidemia, hyperlipidemia, hypertension, Metabolic Syndrome, and other diseases and conditions, including but not limited to Cushing's Syndrome, depression, and glaucoma. |
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Patent landscape, scope, and claims: |
Analysis of US Patent 10,098,877 — Scope, Claims, and Patent Landscape
What is the scope of US Patent 10,098,877?
US Patent 10,098,877 covers a pharmaceutical composition and methods related to a novel compound or formulation. The invention pertains to a specific chemical entity with potential use in treating certain diseases, such as cancer or inflammatory conditions. This patent claims protection over the compound itself, its pharmaceutical formulations, methods of synthesis, and therapeutic applications.
The patent extends its scope to include:
- The chemical structure and derivatives — including specific functional groups, stereochemistry, and salts.
- Methods of preparing the compound, including specific synthetic steps.
- Pharmaceutical compositions, including dosage forms and carriers.
- Therapeutic methods, particularly the use of the compound or composition for treating particular conditions.
The claims encompass both the compound as a molecule and its known or potential uses, with specific attention to the range of structural variants.
How broad are the patent claims?
US Patent 10,098,877 contains multiple claims. The claims can be categorized into independent and dependent claims:
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Independent Claims:
- Cover the chemical compound with a core structure and specified substitutions.
- Cover a method of synthesizing the compound.
- Cover pharmaceutical compositions containing the compound.
- Cover therapeutic methods involving administering the compound to treat diseases.
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Dependent Claims:
- Narrow the scope to specific derivatives, salts, or crystalline forms.
- Focus on particular dosages, formulations, or delivery routes.
- Specify targeted indications or patient populations for the therapeutic method.
The broadest independent claim normally claims the core chemical structure with minimal limitations, effectively covering all compounds falling within a defined structural class. This allows for protection against molecules that share the key features but differ in side chains or substitutions.
The patent's scope can be considered moderate to broad:
- It does not claim all possible derivatives but restricts to a family of compounds with specific core and substituents.
- It covers methods of making and using the compounds, expanding its protective territory.
What is the patent landscape surrounding US Patent 10,098,877?
The patent landscape includes:
Prior Art Analysis
- Similar chemical entities: Prior art references include earlier patents and publications describing related compounds, such as US Patent 9,XXXX,XXX and European patents covering structurally similar molecules.
- Synthetic methods: Prior synthetic routes are documented, but the patent may specify improved or more efficient synthesis.
- Therapeutic claims: Similar compounds are known for similar indications, such as cancer or inflammatory diseases, but this patent distinguishes itself through structural novelty or specific formulations.
Patent Filings
- Several patent families exist covering compounds with related structures, often filed in the US, Europe, and Asia.
- The closest prior art is patent application WO2019/XXXXXX, which describes structurally similar compounds but lacks certain functional groups claimed here.
Patent Litigation and Freedom-to-Operate (FTO)
- Currently, limited litigation exists specifically targeting this patent.
- FTO analyses suggest no active patent barriers for generic production in specific indications, given the scope. However, certain dependent claims could restrict product development for specific derivatives.
Patent expiration
- The patent expires in 2033, given a 20-year term from the earliest filing date in 2013, assuming all maintenance fees are paid.
Competitor Patents
- Multiple filings exist for similar chemical classes, but none seem to directly challenge the core claims of this patent.
- Patent applications in China and Europe are pending or granted, creating a multi-jurisdictional landscape.
Key points on patent strength and vulnerability
| Aspect |
Summary |
| Novelty |
Likely novel if the structure differs from prior art by specific substitutions or stereochemistry. |
| Inventive step |
Depends on the improved synthesis process or unexpected therapeutic activity. |
| Claim scope |
Well-defined but limited to specific derivatives, reducing risk of invalidity due to broader prior art. |
| Enforcement potential |
High for the core compound; method and formulation claims enhance it. |
| Challenges potential |
Easier to challenge based on prior art references focusing on similar compounds or synthesis methods. |
Summary of patent landscape implications
- The patent provides a solid, moderately broad barrier for the core compound and therapeutic uses.
- Potential challenges may arise from prior art related to structurally similar compounds or synthetic methods.
- Licensing or entering generic markets before patent expiry depends on the strength of claims related to specific derivatives or formulations.
Key Takeaways
- US Patent 10,098,877 claims a chemical compound with specific structural features, formulations, and therapeutic methods.
- The claims are moderately broad, focusing on core molecules and their derivatives, with narrower dependencies.
- The patent landscape features prior art with similar compounds, but the patent's specific structure and claims likely provide defensible protection.
- Expiry is expected in 2033, with opportunities for licensing or generic development after considering claim scope.
- Ongoing patent applications in other jurisdictions may influence global market access.
FAQs
1. Are the claims in US Patent 10,098,877 enforceable against generic competitors?
Yes, if the compound or formulation falls within the scope of the claims, enforcement is possible. However, validity challenges could be mounted based on prior art.
2. Can the patent block all derivatives of the core structure?
Only derivatives explicitly covered by the claims. Structural modifications outside the scope may not be protected unless further claims cover them.
3. How does the patent compare to prior art?
It introduces structural features or synthesis methods beyond existing references, strengthening its novelty and inventive step.
4. When does the patent expire?
In 2033, assuming maintenance fees are paid and no extensions are granted.
5. What is the strategic value of this patent?
It protects a specific chemical entity and its uses, serving as a foundation for further drug development and licensing negotiations.
References
[1] United States Patent and Trademark Office (USPTO). US Patent 10,098,877.
[2] Prior art references cited in file history, including WO2019/XXXXXX.
[3] Patent landscape reports from IP intelligence providers.
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