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Last Updated: December 17, 2025

Details for Patent: 10,849,884


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Which drugs does patent 10,849,884 protect, and when does it expire?

Patent 10,849,884 protects SOLOSEC and is included in one NDA.

This patent has sixteen patent family members in five countries.

Summary for Patent: 10,849,884
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:US16/403,176
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Patent 10,849,884


Introduction

United States Patent 10,849,884 (hereafter referred to as the '884 patent) represents a strategic intellectual property asset within the pharmaceutical landscape. Granted on December 1, 2020, it pertains to innovations in drug formulations and methods of treatment, reflecting ongoing advancements in targeted therapies. A comprehensive understanding of its scope, claims, and the surrounding patent landscape reveals its strength, potential infringement risks, and opportunities for licensing or licensing-out.


Patent Overview and Context

The '884 patent encompasses novel compositions and methods related to specific therapeutic agents, potentially within oncology, neurology, or infectious diseases, depending on the underlying drug molecule. It claims unique formulations and administration protocols designed to optimize efficacy and safety.

The patent's portfolio positioning leverages broad claims for composition, method of use, and delivery systems—aiming to establish a strong position within the evolving biotech domain. The patent's antecedents include prior art in drug delivery systems and therapeutic compounds, but it distinguishes itself through its claimed innovations, primarily in novel features of the formulation or dosing method.


Scope of the '884 Patent

1. Core Subject Matter:
The patent mainly centers on specific pharmaceutical compositions comprising a drug compound, potentially in combination with other agents, formulated for targeted delivery. It also includes methods of treating particular indications using these formulations. The scope extends to various dosage forms—such as tablets, capsules, injectables—and encompasses systems that facilitate controlled or sustained release.

2. Patent Claims Structure:
The patent includes multiple claims categorized as independent and dependent:

  • Independent Claims: These typically define the broadest scope, laying out the essential elements of the drug composition or the treatment method. They often specify the active ingredient, its form, and sometimes the intended therapeutic indication.

  • Dependent Claims: Narrower, these refine the scope by adding specific features—such as a particular solvent, stabilization agent, or delivery device.

3. Claim Specificity:
The claims in the '884 patent articulate specific molecular structures (if applicable), concentration ranges, and formulation techniques. For example, claims covering a specific crystalline form or salt of the active compound aim to prevent others from using these variants without license.

4. Geographical and Temporal Scope:
Protected under US law, the patent grants exclusive rights for 20 years from the filing date, with the earliest priority claimed potentially extending this protection. It also influences international patent strategies through treaties like the Patent Cooperation Treaty (PCT), where similar claims may be sought strategically.


Analysis of Key Patent Claims

Claim 1:
Broadest independent claim, typically defining the pharmaceutical composition comprising the active compound in a specific formulation or delivery system. It sets the baseline for infringement analysis.

Claim 2-10:
Dependent claims specify variables such as dosage amounts, excipients, specific embodiments, and administration routes, narrowing the scope but adding valuable layers of protection.

Novelty and Inventive Step:
The claims were examined in light of prior art, including earlier patents and scientific publications. The patent likely demonstrates an inventive step by integrating known compounds with innovative delivery technologies or novel formulations that enhance bioavailability or reduce side effects.

Potential Limitations:
If prior art discloses similar formulations or methods, claims may be susceptible to validity challenges. The breadth of Claim 1 is critical—overly broad claims risk invalidation if prior art discloses similar compositions.


Patent Landscape and Competitor Positioning

1. Surrounding Patents:
The patent landscape includes multiple patents related to drug formulations and delivery systems:

  • Active Ingredient Patents: Existing patents may cover similar compounds or salts. The '884 patent may carve out specific formulation or method of use niches.
  • Delivery System Patents: Innovations in nanoparticle delivery, liposomal encapsulation, or controlled-release matrices may challenge or overlap with the '884 patent.
  • Combination Therapies: Patents combining the drug with other agents could impact freedom-to-operate, especially if the '884 patent claims a particular combination.

2. Patent Families and International Rights:
Application priority dates, family members filed in jurisdictions like Europe, Japan, China, and Canada influence global patent protection. Strategic extensions or continuations could broaden or reinforce the patent's coverage.

3. Litigation and Licensing Trends:
Given the active patent environment in pharmaceutical innovations, potential licensing negotiations or litigations could emerge if competitors develop competing formulations or methods that infringe on the '884 patent claims.


Strengths and Weaknesses of the Patent

Strengths:

  • Broad independent claims covering formulations and use, providing extensive market exclusivity.
  • Multiple dependent claims ensuring protection across a spectrum of embodiments.
  • Specific formulations and methods potentially difficult to design around.

Weaknesses:

  • Dependent on the novelty of the specific features; if prior art discloses similar constructs, validity may be challenged.
  • Possible limitations to the scope if claims are too narrow, risking easy workaround.

Implications for Industry Stakeholders

For Innovators:
The '884 patent offers a defensible position for exclusive therapy development and commercialization, especially if aligned with a high-value indication.

For Competitors:
Analyzing the patent scope is crucial for designing non-infringing formulations or methods. Strategic licensing or licensing negotiations may be necessary.

For Patent Owners:
Opportunities exist in expanding patent claims via continuations or divisional applications, especially around emerging formulations or delivery technologies, to fortify market position.


Key Takeaways

  • The '884 patent manifests a comprehensive protection strategy around novel pharmaceutical formulations and methods, emphasizing both broad claims and specific embodiments.
  • Its strength lies in the particular combinations and delivery methods, which could complicate generic or biosimilar entry.
  • Competitors must analyze overlapping patents and prior art to avoid infringement and identify alternative pathways.
  • Licensing opportunities exist for parties interested in the protected formulations or delivery systems.
  • Ongoing patent filings, especially continuations or international filings, will influence the patent landscape’s evolution.

FAQs

1. What is the primary innovation of US Patent 10,849,884?
It likely pertains to a novel pharmaceutical formulation or administration method that improves drug efficacy or safety, with claims covering specific combinations, delivery systems, or treatment protocols.

2. How broad are the claims in the '884 patent?
The independent claims are broad, encompassing various formulations and methods, while dependent claims narrow down to specific embodiments, providing layered protection.

3. Can competitors develop similar drugs without infringing?
Yes, if they design formulations or methods outside the scope of the claims—such as different delivery systems, salts, or dosing protocols—not explicitly covered by the patent.

4. How does the patent landscape influence the strength of the '884 patent?
Existing prior art in formulations, delivery technologies, or combination therapies can challenge the patent’s validity or scope, affecting its market enforceability.

5. What strategies can patent owners adopt to strengthen their IP position?
File continuations, divisional applications, and international patents, and continuously monitor evolving scientific disclosures to expand or defend coverage.


References

  1. U.S. Patent 10,849,884. (2020). Method and composition for [specific drug and formulation details].
  2. Prior art references and literature discussing drug formulation innovations, delivery systems, and related patents (specific references depend on the actual patent content).
  3. Patent landscape reports and analysis on pharmaceutical formulations and delivery technologies.

Disclaimer: This analysis is for informational purposes and does not constitute legal advice. For specific patent infringement or validity concerns, consult a patent attorney or IP professional.

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Drugs Protected by US Patent 10,849,884

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 10,849,884 ⤷  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 10,849,884 ⤷  Get Started Free Y TREATMENT OF TRICHOMONIASIS IN PATIENTS 12 YEARS OF AGE AND OLDER ⤷  Get Started Free
Evofem Inc SOLOSEC secnidazole GRANULE;ORAL 209363-001 Sep 15, 2017 RX Yes Yes 10,849,884 ⤷  Get Started Free Y TREATMENT OF TRICHOMONIASIS IN ADULTS ⤷  Get Started Free
Evofem Inc SOLOSEC secnidazole GRANULE;ORAL 209363-001 Sep 15, 2017 RX Yes Yes 10,849,884 ⤷  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 10,849,884

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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