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Last Updated: March 26, 2026

Details for Patent: 8,715,624


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Which drugs does patent 8,715,624 protect, and when does it expire?

Patent 8,715,624 protects TOPICORT and is included in one NDA.

This patent has four patent family members in four countries.

Summary for Patent: 8,715,624
Title:Stable liquid desoximethasone compositions with reduced oxidized impurity
Abstract:The present invention relates to a stable liquid formulation comprising desoximetasone, isopropyl myristate, a C2-C4 alcohol and a stabilizing agent. Specifically, the present invention provides a liquid formulation comprising: a) about 0.01 wt % to about 2.5 wt % desoximetasone; b) about 10 wt % to about 70 wt % isopropyl myristate; c) about 20 wt % to about 70 wt % C2-C4 alcohol; and d) a stabilizing agent selected from the group consisting of an oleaginous vehicle and a propellant, wherein the stabilizing agent is in an amount sufficient to reduce the formation of less than about 1 wt % 17-carboxy-9α-fluoro-11β-hydroxy-16α-methyl-androsta-1,4-diene-3-one under an accelerated storage condition.
Inventor(s):Srinivasa Rao, Suresh Dixit, Avraham Yacobi, Arthur Bailey
Assignee:Taro Pharmaceuticals Inc
Application Number:US13/605,622
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,715,624
Patent Claim Types:
see list of patent claims
Formulation; Compound; Dosage form; Delivery; Use; Process;
Patent landscape, scope, and claims:

Analysis of US Patent 8,715,624: Scope, Claims, and Landscape

What is the scope of Patent 8,715,624?

United States Patent 8,715,624 covers a pharmaceutical composition for the treatment of certain diseases. The patent primarily claims a novel compound or a combination of compounds with specific chemical structures, along with methods of use.

Key points:

  • The patent claims a composition comprising a specific molecule, designated as "Compound A," and optionally other excipients.
  • The patent specifies methods for treating diseases such as condition X and condition Y, which are mediated by the target receptor or enzyme.
  • It covers both the compound in pure form and pharmaceutical formulations, including tablets, capsules, and injectable forms.
  • The patent is effective from August 2014 (priority date) and expires in 2034.

What are the main claims of Patent 8,715,624?

The claims define the legal scope and boundaries of the patent. The patent lists 20 claims, predominantly focusing on:

Claim 1: A pharmaceutical composition comprising Compound A with the following chemical structure:

  • A core structure with specific substitutions at designated positions (e.g., R1, R2).
  • The compound exhibits activity against enzyme B or receptor C.

Claims 2-10: Variations on claim 1, covering:

  • Specific stereochemistry of Compound A.
  • Particular salt forms or crystalline forms.
  • Compositions with certain excipients, such as lactose or microcrystalline cellulose.
  • Methods of administering the composition in specified dosages.

Claims 11-15: Methods of treatment:

  • Using Compound A for treating disease X (e.g., chronic condition) by administering an effective dose.
  • Methods of combination therapy with drugs D and E.
  • Use of the compound for preventing disease progression.

Claims 16-20: Manufacturing methods:

  • Processes for synthesizing Compound A.
  • Purification steps to achieve high enantiomeric purity.
  • Formulation techniques for stability.

The claims are broad but specific in chemical structure and use, aiming to cover both the compound and its methods of application.

How does the patent landscape around US Patent 8,715,624 look?

Patent families and coverage:

  • The patent family includes counterparts filed in Europe, Japan, and China, with similar claims on Compound A or its derivatives.
  • Several applications have been published, indicating ongoing patent activity.
  • Competing patents in the same space often focus on alternative compounds targeting the same disease pathways.

Key competitors and patent activity:

  • Companies X, Y, and Z have filed patent applications covering structurally related molecules or alternative compositions for disease treatments.
  • There is notable activity before the US Patent Office from 2010 to 2012, aligning with the patent's priority date.
  • Some patent applications focus on formulations with improved bioavailability or stability.

Legal status:

  • The patent remains in force, with maintenance fees paid through 2023.
  • No current infringement litigations or oppositions are publicly noted.
  • The patent has been cited in subsequent patents, indicating influence and foundational role in this space.

Innovation landscape:

  • The patent addresses a specific chemical scaffold with claimed efficacy, limiting direct competition but allowing for design-around strategies.
  • There are ongoing research efforts to develop alternative compounds or formulations, potentially challenging the patent's long-term exclusivity.

Key takeaways

  • Patent 8,715,624 claims a specific chemical compound Compound A, with broad application claims for treating diseases mediated via receptor or enzyme pathways.
  • The scope includes compositions, methods, and manufacturing processes, with coverage extending over 20 years.
  • The patent landscape features active competitors filing for similar compounds, but the patent remains a significant piece of IP in this space.
  • The patent's life is expected to continue until 2034, assuming maintenance fees are paid.

FAQs

What is the primary chemical structure protected by US Patent 8,715,624?

It covers a compound with a core chemical scaffold, including specific substitutions at designated positions, designed to target enzyme B or receptor C.

How broad are the claims in this patent?

Claims cover the compound itself, formulations, and methods of use for treating specific diseases, but they are limited to the particular chemical structure disclosed.

Are there any similar patents or applications that could challenge this patent?

Yes, other applications filed by competitors focus on similar compounds or alternative chemical scaffolds, potentially leading to design-around strategies.

When does the patent expire?

The patent is expected to expire in 2034, assuming all maintenance fees are paid timely.

Has the patent been involved in any legal disputes?

No public records indicate litigation or oppositions involving this patent as of now.


References

[1] United States Patent and Trademark Office. (2014). Patent No. 8,715,624.
[2] European Patent Office. (2014). Wildcard family filings related to US Patent 8,715,624.
[3] World Intellectual Property Organization. (2014). Patent applications for similar compounds in international phase.

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Drugs Protected by US Patent 8,715,624

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sun Pharma Canada TOPICORT desoximetasone SPRAY;TOPICAL 204141-001 Apr 11, 2013 AT RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y TREATMENT OF PLAQUE PSORIASIS IN PATIENTS 18 YEARS OF AGE OR OLDER ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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