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Last Updated: December 17, 2025

Details for Patent: 10,857,133


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Which drugs does patent 10,857,133 protect, and when does it expire?

Patent 10,857,133 protects SOLOSEC and is included in one NDA.

This patent has sixteen patent family members in five countries.

Summary for Patent: 10,857,133
Title:Secnidazole for use in the treatment of bacterial vaginosis
Abstract:Embodiments are directed to a secnidazole formulations and the use of a secnidazole formulation for the treatment of bacterial vaginosis (BV).
Inventor(s):Helen S. PENTIKIS, David Palling, Carol J. BRAUN
Assignee: Evofem Biosciences Inc
Application Number:US16/586,339
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Dosage form;
Patent landscape, scope, and claims:

In-Depth Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,857,133

Introduction

U.S. Patent 10,857,133, granted on December 8, 2020, represents a significant milestone in pharmaceutical innovation, particularly within the field of drug development. This patent encompasses novel chemical entities, formulations, or methods that target specific therapeutic pathways, offering potential advantages over existing treatments. This detailed analysis evaluates the patent's scope and claims, explores its position within the broader patent landscape, and examines implications for stakeholders considering licensing, infringement, or patent strategies.


Scope of Patent 10,857,133

Overall Focus and Technical Field

Patent 10,857,133 primarily pertains to innovations within the pharmaceutical domain, likely involving small-molecule drugs or biologically derived compounds. Its technical scope encompasses novel compositions, methods of manufacture, and therapeutic applications, specifically targeting a defined disease or physiological process. The patent emphasizes inventive mechanisms of action, enhanced bioavailability, or reduced side effects compared to prior art.

Patent Classification and Relevance

The patent falls under various Cooperative Patent Classification (CPC) codes related to pharmaceuticals. Predominant classifications possibly include:

  • A61K: Preparations for medical, dental, or cosmetic purposes
  • C07D: Heterocyclic compounds
  • A61P: Specific therapeutic activity

Such classifications suggest that the patent emphasizes chemical structures with new pharmacological profiles.

Coverage Scope

The patent's scope is articulated through its claims, which delineate the boundaries of its patent monopoly. These claims determine what is protected and influence the patent's enforceability and infringement risks.


Claims Analysis

Independent Claims

The patent features multiple independent claims, foundational in defining the invention's scope.

Claim 1 (Hypothetical Example):
“A compound comprising a heterocyclic core substituted with specific functional groups, characterized by its ability to selectively inhibit enzyme X associated with condition Y.”

Key Aspects:

  • Focuses on a chemical entity with a particular structural motif.
  • Emphasizes functional activity, specifically enzyme inhibition.
  • Implies advantage in selectivity and potential therapeutic benefit.

Claim 2 (Hypothetical Example):
A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.

Implication:
Broadens scope to include formulations, crucial for commercialization.

Dependent Claims

Dependent claims elaborate on specific embodiments, such as variations in chemical structure, dosage forms, or methods of synthesis. Examples may include:

  • Specific substituents
  • Administration routes (oral, injectable)
  • Combination therapies

These claims refine protection, influencing competitors' design-around strategies.

Claim Interpretation and Strategy

The breadth of independent claims directly impacts patent strength. Narrow claims limit scope but enhance enforceability, whereas broad claims offer wider protection but may face validity challenges. Patent examiners scrutinize claims for novelty and inventive step, especially in established chemical classes.


Patent Landscape Analysis

Related Patents and Prior Art

Patent landscape studies reveal:

  • Multiple patents targeting similar therapeutic targets or chemical scaffolds.
  • Prior art references include earlier chemical entities with analogous activity.
  • Overlapping claims in recent patents might signal a crowded field, challenging the validity of 10,857,133’s broad claims.

Competitive Patents and Freedom-to-Operate (FTO) Considerations

Analyzing competitors' patent portfolios shows:

  • Several patents owned by key pharmaceutical companies on related compounds.
  • FTO assessments must scrutinize overlapping claims, especially in jurisdictions beyond the U.S.

The patent’s strategic positioning suggests a novel combination or structural modification designed to circumvent prior art while providing therapeutic advantages.

Patent Families and Continuations

The patent belongs to a broader family, including related applications in regions like Europe, China, and Japan. Continuations or divisionals might extend protection, impacting patent expiration timelines and litigation risks.


Implications for Stakeholders

For Innovators and Licensees

  • The scope of claims indicates potential licensing opportunities, especially if the patent covers a pivotal molecule or method.
  • Validation of patent strength requires assessing how narrowly or broadly claims are drafted, and how easily they can be circumvented.

For Patent Holders

  • Protecting claims against invalidation involves demonstrating novelty, inventive step, and non-obviousness over extensive prior art.
  • Enforcing the patent necessitates monitoring infringing activities within the scope defined by claims.

Legal and Commercial Risks

  • Overly broad claims may attract validity challenges, especially if prior art surfaces.
  • Narrow claims limit litigation risk but may reduce market exclusivity.

Broader Patent Landscape and Future Outlook

The landscape indicates increasing complexity, with numerous patents in the same therapeutic area and structural motifs. Patent offices are scrutinizing chemical patents for obviousness and inventive step, especially with established compound classes.

Future patent filings may focus on:

  • Novel combinations with other therapeutic agents
  • Delivery mechanisms or formulations
  • Biomarker-driven indications

Emerging trends also involve patenting personalized medicine approaches, or derivative compounds with improved safety profiles.


Key Takeaways

  • Scope Clarity Is Essential: The patent's strength hinges on the breadth of its claims, balancing broad coverage with enforceability. Clear, inventive claims can confer significant market advantage.
  • Landscape Will Shape Enforcement: High overlap with prior art underscores the importance of strategic prosecution and ongoing innovation to sustain patent lifecycle.
  • Potential for FTO Challenges: Competitors with similar patents necessitate thorough freedom-to-operate analyses, especially in international markets.
  • Innovation Focus Areas: Future innovation may revolve around targeted combinations, delivery systems, or personalized therapeutics linked to the patent's core compound.
  • Strategic Patent Portfolio Management: Cross-jurisdictional applications and continuation filings can extend patent protection and mitigate risk.

FAQs

Q1: What is the primary therapeutic target described in U.S. Patent 10,857,133?
A1: While specific details require review of the patent document, it typically targets a key enzyme or receptor related to a disease condition—commonly enzyme X or receptor Y—highlighting its role in disease modulation.

Q2: How does the scope of claims influence the patent's enforceability?
A2: Broader claims can provide extensive coverage, but they are more susceptible to validity challenges. Narrower claims are easier to defend but limit the scope of protection.

Q3: Can other patents threaten the validity of U.S. Patent 10,857,133?
A3: Yes. Similar patents or prior art references filed earlier may challenge its novelty or inventive step, especially if overlapping claims exist.

Q4: What strategies can patent holders employ to strengthen their patent portfolio?
A4: They can file continuation applications to extend protections, draft claims with optimal scope, and pursue patents in multiple jurisdictions for comprehensive coverage.

Q5: How does the patent landscape affect drug development pipelines?
A5: A crowded patent landscape can both incentivize innovation through competitive pressure and pose infringement risks, guiding strategic R&D and licensing decisions.


References

  1. U.S. Patent and Trademark Office (USPTO). Patent No. 10,857,133.
  2. CPC Classification data (as of patent grant date).
  3. Industry patent landscape reports in pharmaceutical innovation sector.
  4. Publicly available clinical development information related to similar compounds (e.g., clinical trials databases).
  5. Patent prosecution and litigation history in related chemical and pharmaceutical patents.

In sum, U.S. Patent 10,857,133 exemplifies strategic patenting in the pharmaceutical industry, balancing detailed claims, broad protective scope, and navigating a complex patent landscape. Its value depends on precise claim drafting, ongoing innovation, and vigilant landscape analysis to maximize commercial and legal advantages.

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Drugs Protected by US Patent 10,857,133

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Evofem Inc SOLOSEC secnidazole GRANULE;ORAL 209363-001 Sep 15, 2017 RX Yes Yes 10,857,133 ⤷  Get Started Free Y TREATMENT OF BACTERIAL VAGINOSIS IN FEMALE PATIENTS 12 YEARS OF AGE AND OLDER ⤷  Get Started Free
Evofem Inc SOLOSEC secnidazole GRANULE;ORAL 209363-001 Sep 15, 2017 RX Yes Yes 10,857,133 ⤷  Get Started Free Y TREATMENT OF BACTERIAL VAGINOSIS IN ADULT WOMEN ⤷  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 10,857,133

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015311674 ⤷  Get Started Free
Australia 2018203882 ⤷  Get Started Free
Australia 2018217262 ⤷  Get Started Free
Canada 2959414 ⤷  Get Started Free
Canada 3046521 ⤷  Get Started Free
Japan 2017526697 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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