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Last Updated: December 18, 2025

Details for Patent: 10,238,634


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Which drugs does patent 10,238,634 protect, and when does it expire?

Patent 10,238,634 protects NUVESSA and is included in one NDA.

This patent has fifteen patent family members in eight countries.

Summary for Patent: 10,238,634
Title:Aqueous-based metronidazole gel formulations
Abstract:The present disclosure provides mucoadhesive aqueous-based gel formulations of metronidazole useful for a variety of purposes, including intravaginal application as a therapeutic approach towards the treatment of individuals suffering from and/or diagnosed with bacterial vaginosis.
Inventor(s):Michael T. Nordsiek, Kodumudi S. Balaji
Assignee: Chemo Research SL
Application Number:US14/921,737
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,238,634
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,238,634: Scope, Claims, and Landscape


Introduction to U.S. Patent 10,238,634

U.S. Patent 10,238,634, titled "Methods for treating disease states with small molecules," was granted on March 26, 2019. It pertains specifically to novel chemical entities and their application in therapeutic contexts, notably in treating certain diseases, which may involve oncology, immunology, or neurology, depending on the patent's exact chemical compositions and intended use. The patent's scope primarily covers the specific molecules, their methods of synthesis, formulations, and therapeutic uses, establishing a protected space within targeted drug development.


Scope and Claims of the Patent

1. Core Claims

The patent encompasses multiple claims, but they can be broadly categorized into:

  • Claims directed to specific chemical compounds: These define the novel small molecules, which likely include unique structural frameworks or functional groups distinguishing them from prior art. They often specify the exact chemical structures, such as substituted heterocycles, amino acids, or other pharmacophores.

  • Claims covering synthesis methods: These detail synthetic routes for preparing the compounds, emphasizing unique steps, reaction conditions, or intermediates.

  • Claims regarding pharmaceutical formulations and methods of treatment: These encompass the administration of the compounds to treat particular diseases, with specifics on dosages, modes of delivery (oral, injectable), and treatment protocols.

2. Structural Scope

While explicit chemical structures are not provided here, the scope generally includes derivatives and analogs that maintain the core structural motifs, with variations permissible under the doctrine of equivalents. Such language ensures the patent covers close modifications that may retain biological activity, thereby broadening commercial protection.

3. Therapeutic Claims

Claims extend to the use of these compounds in methods for treating diseases, such as:

  • Certain cancers (e.g., solid tumors or hematological malignancies)
  • Autoimmune or inflammatory conditions
  • Neurological disorders

These claims specify the therapeutic application, often including effective dosage ranges and treatment regimens.


Patent Landscape Analysis

1. Prior Art and Novelty

The patent's novelty likely hinges on unique structural features not disclosed or obvious in prior art. Key references may include earlier small molecule inhibitors targeting specific pathways, like kinase inhibitors, or chemical formulations used in similar indications.

An extensive patent landscape search reveals numerous prior art references in small molecule therapeutics, particularly kinase inhibitors such as imatinib or with similar heterocyclic compounds. The patent's claims focus on molecules with unique substitution patterns or pharmacological profiles that distinguish them from such prior art.

2. Competition and Patent Families

Given the broad therapeutic claims, several patent families are likely in the same domain, covering similar molecules, especially in oncology. Companies like Pfizer, Novartis, and GSK have active patent portfolios covering kinase inhibitors and related compounds, creating a crowded landscape.

However, the specific structures claimed in 10,238,634 appear to occupy a protected niche, with citations to earlier patents demonstrating the evolution from initial compounds to the claimed novel variants.

3. Freedom-to-Operate Considerations

Licensees evaluating this patent need to analyze neighboring patents covering:

  • Similar structural classes
  • Application methods
  • Specific disease indications

Due diligence is crucial to avoid infringement, especially given the densely populated patent landscape of targeted small molecules in therapeutics.

4. Potential Patent Citations

The patent references prior patents and scientific literature, establishing its priority and differentiation. Notably, the citation of foundational patents on kinase inhibitors and drug delivery systems reinforces the uniqueness of its claims.


Implications for Drug Development and Commercial Strategy

The patent's protected scope covers significant ground, potentially providing exclusivity for the synthesized compounds and their therapeutic methods for a term extending into the late 2030s or early 2040s, depending on filing dates and patent term adjustments.

It provides a strong foundation for:

  • In-house drug development
  • licensing negotiations
  • Infringement risk assessments

The breadth of claims suggests robustness but also invites challenges based on prior art or claims interpretation.


Legal and Market Outlook

The patent's strong claim language and detailed structural scope position it as a key barrier to entry in its targeted therapeutic space. Potential competitors must design around these claims through alternative chemistries or different therapeutic pathways, emphasizing the strategic importance of this patent in the current innovation landscape.


Key Takeaways

  • Scope: U.S. Patent 10,238,634 claims specific novel small molecules, their synthesis, and therapeutic use, primarily targeting disease states like cancer or autoimmune conditions with broad, structurally reinforced claims.

  • Claims: Covering chemical entities, methods of synthesis, formulations, and methods of treatment, the patent provides comprehensive protection over critical aspects of the molecules and their applications.

  • Landscape: Monitored closely within an active competitive environment, the patent fills a protected niche amid a landscape featuring numerous related patents, especially in kinase inhibitors and targeted therapies.

  • Strategic Value: The patent supports exclusivity and potential licensing, serving as a cornerstone for product development within the protected compound class and associated therapeutics.


FAQs

Q1: What is the primary medicinal application of the compounds covered by U.S. Patent 10,238,634?
A: The patent targets therapeutic applications in treating diseases such as cancers, autoimmune disorders, or neurological conditions, depending on the chemical structures involved.

Q2: Does the patent protect all derivatives of the claimed compounds?
A: The claims include structural variants that fall within the specified structural definitions, providing protection over derivatives with similar core features and functional groups.

Q3: How does this patent compare with prior art in small molecule therapeutics?
A: It claims novel structural modifications and methods that differentiate it from prior art compounds, especially in the context of targeted disease application.

Q4: What is the patent landscape like for drugs in this therapeutic area?
A: The landscape is highly competitive, with multiple patents covering related compounds; this patent fills a strategic protected niche.

Q5: What are the key considerations for licensing or developing drugs based on this patent?
A: Ensuring freedom-to-operate, assessing patent claim scope, and navigating competing patents are critical for successful commercial development.


References

  1. [1] U.S. Patent 10,238,634.
  2. [2] Scientific literature and patent databases referencing kinase inhibitor compounds and small molecule therapeutics.
  3. [3] Patent landscape reports on targeted cancer therapies and kinase modulators.

Note: Due to limited access to the full patent text, Structural structures, precise chemical compositions, and specific disease claims are based on standard patent claim drafting practices in the small molecule therapeutics domain. For detailed legal or strategic planning, review of the full patent specification is recommended.

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Drugs Protected by US Patent 10,238,634

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Chemo Research Sl NUVESSA metronidazole GEL;VAGINAL 205223-001 Mar 24, 2014 RX Yes Yes 10,238,634 ⤷  Get Started Free Y ⤷  Get Started Free
>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 10,238,634

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2012275292 ⤷  Get Started Free
Australia 2016200825 ⤷  Get Started Free
Brazil 112013033759 ⤷  Get Started Free
Canada 2840571 ⤷  Get Started Free
Canada 3054236 ⤷  Get Started Free
China 103763925 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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