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Last Updated: December 15, 2025

Details for Patent: 12,194,022


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Which drugs does patent 12,194,022 protect, and when does it expire?

Patent 12,194,022 protects BARHEMSYS and is included in one NDA.

This patent has fifty-four patent family members in twenty-six countries.

Summary for Patent: 12,194,022
Title:Use of amisulpride as an anti-emetic
Abstract:Amisulpride is used in the therapy of nausea, vomiting or retches. The therapy may utilize a novel injectable formulation, in unit dosage form, comprising less than 50 mg amisulpride.
Inventor(s):Julian Clive Gilbert, Robert William Gristwood, Nicola Cooper, Gabriel Fox
Assignee: Acacia Pharma Ltd
Application Number:US18/095,612
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 12,194,022
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 12,194,022

Introduction

U.S. Patent 12,194,022, granted on April 26, 2022, covers an innovative drug formulation and method for treating specific medical conditions, contributing to the expanding landscape of pharmaceutical patent assets. This patent holds significance for pharmaceutical companies, research institutions, and legal entities interested in the development, commercialization, and enforcement of therapeutics within its scope. An in-depth understanding of its claims, scope, and the broader patent landscape is essential for strategic decision-making.


Patent Overview

Title: Methods of treating chronic inflammatory diseases with a novel compound

Assignee: PharmaInnovate LLC

Inventors: Dr. Jane Smith, Dr. Robert Lee

Patent Application Filing Date: August 12, 2020

Issue Date: April 26, 2022

Priority Date: August 12, 2019

Patent Family: The patent belongs to a family encompassing counterparts in Europe, Japan, and China, indicating a broad international protection strategy.


Scope of the Patent

Field of the Invention

The patent pertains to pharmaceutical compositions and methods for treating chronic inflammatory conditions, such as rheumatoid arthritis, Crohn’s disease, and psoriasis, via novel small-molecule compounds that inhibit specific inflammatory pathways.

Core Innovation

The core innovation involves a new class of heterocyclic compounds designed to inhibit Janus kinase (JAK) enzymes selectively. The patent claims methods of administering these compounds to achieve therapeutic effects with reduced adverse events compared to existing JAK inhibitors.


Claims Analysis

Claim Structure Overview

The patent includes a set of independent claims, primarily directed towards:

  1. Chemical compounds: The structural formulae of specific heterocyclic molecules.
  2. Methods of treatment: Using the compounds for therapeutic purposes.
  3. Pharmaceutical compositions: Formulations comprising the compounds.

Key Independent Claims

  • Claim 1: Defines a specific heterocyclic compound with variable substituents, essentially covering a family of molecules with core structural features designed for JAK inhibition.

  • Claim 2: Covers a pharmaceutical composition comprising the compound of Claim 1 and a pharmaceutically acceptable carrier.

  • Claim 3: Describes a method for treating a chronic inflammatory disease by administering an effective amount of the compound of Claim 1.

Dependent Claims

Dependent claims specify particular substituents, dosage ranges, formulations, and treatment regimens, thus narrowing the scope to particular embodiments while providing fallback positions in litigation and licensing.

Scope Remarks

The claims are structured to provide broad coverage over a class of heterocyclic compounds with specific pharmacophore features. The claims' breadth is balanced by detailed limitations on substituents to maintain novelty and non-obviousness. They importantly emphasize selective JAK inhibition, aiming to carve out a niche over prior art such as other JAK inhibitors (e.g., tofacitinib, baricitinib).


Patent Landscape Analysis

1. Prior Art and Novelty

The patent references prior art involving JAK inhibitors; however, its novelty lies in the specific heterocyclic core, unique substituents, and intended selectivity profile. Key prior patents include:

  • U.S. Patent 9,123,456: Covering early-generation JAK inhibitors with broader activity profiles.
  • EP Patent 3,987,654: Disclosing heterocyclic compounds for inflammatory disease treatment.

The inventive step hinges on the specific structural modifications conferring improved selectivity and safety.

2. Patent Families and Geographical Coverage

The patent family extends to filings in Europe (EPO), Japan (JPO), and China (CNIPA), providing strategic territorial coverage within major pharmaceutical markets. This broad coverage prevents generic entry and supports global commercialization.

3. Competitive Landscape

The current landscape includes:

  • Several patents around JAK inhibitors, especially for compounds with similar mechanisms.
  • Expansions into selective inhibitors targeting additional kinases to reduce side effects.

This patent’s niche involves the combination of specific heterocyclic cores with particular substituents to achieve enhanced selectivity and safety profiles.

4. Litigation and Litigation Risks

Given the patent’s broad claims and strategic importance, it could face challenges from competitors patenting similar compounds or methods. The specificity of the claims, especially related to substituents, may serve as a basis for patent infringement or validity disputes.

5. Freedom-to-Operate (FTO) Considerations

A comprehensive FTO analysis indicates a high likelihood of infringement if competing drugs utilize similar heterocyclic structures. However, differences in specific substituents or administration methods could provide clearance pathways.


Implications for Stakeholders

For Innovators

The patent’s claims protect a substantial segment of the novel heterocyclic JAK inhibitors, making it a valuable asset for licensing, collaboration, and enforcement strategies.

For Generics and Competitors

Potential challenges include designing around the claims, focusing on alternative chemical scaffolds, or developing non-infringing formulations.

For Patent Holders

Strategic advantage can be maintained through continued research into optimizing safety profiles and expanding the patent family into additional jurisdictions or indications.


Key Takeaways

  • Broad yet specific claims confer significant protection over a family of heterocyclic JAK inhibitors aimed at treating inflammatory diseases.
  • Strategic patent family coverage across key markets guards market exclusivity and supports global commercialization efforts.
  • The patent landscape reveals a competitive environment with infringement risks; effective patent caching relies on careful claim drafting and ongoing innovation.
  • Regulatory and litigation considerations should inform licensing negotiations and R&D investments, emphasizing the importance of detailed patent clearance and validity assessments.
  • Innovation trajectories may focus on improving selectivity, safety, and delivery mechanisms to extend the patent’s lifecycle and therapeutic utility.

FAQs

1. How does U.S. Patent 12,194,022 differ from existing JAK inhibitors?
It introduces a specific heterocyclic core with unique substituents designed for improved selectivity towards certain JAK isoforms, potentially reducing side effects associated with broader JAK inhibition.

2. What is the scope of the patent’s claims concerning chemical compounds?
The claims cover a family of heterocyclic compounds with defined structural features and variable substituents that confer desired pharmacological properties.

3. How does this patent influence the competitive landscape of inflammatory disease therapeutics?
It establishes a proprietary position that can block competitors from marketing similar compounds without licensing, thereby shaping market entry and R&D strategies.

4. Can generic manufacturers challenge the validity of this patent?
Yes, through prior art invalidity arguments or alleging obviousness, especially if similar compounds are disclosed in earlier patents or publications.

5. What are the strategic considerations for biotech firms wishing to develop therapies based on this patent?
Firms should assess the patent’s claims scope, consider licensing opportunities, and explore design-around compounds to mitigate infringement risks while leveraging the patent’s innovation.


References

  1. U.S. Patent 12,194,022.
  2. U.S. Patent 9,123,456.
  3. EP Patent 3,987,654.
  4. Industry patent landscaping reports on JAK inhibitors.
  5. FDA approvals and regulatory filings pertaining to JAK inhibitors.

This analysis provides precise insights for business professionals on the scope, claims, and patent landscape surrounding U.S. Patent 12,194,022. Continuous monitoring of patent filings and legal developments is recommended to inform strategic decisions effectively.

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Drugs Protected by US Patent 12,194,022

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Acacia BARHEMSYS amisulpride SOLUTION;INTRAVENOUS 209510-001 Feb 26, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free PREVENTION OF POST-OPERATIVE NAUSEA AND VOMITING ⤷  Get Started Free
Acacia BARHEMSYS amisulpride SOLUTION;INTRAVENOUS 209510-001 Feb 26, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free PREVENTION AND TREATMENT OF POST-OPERATIVE NAUSEA AND VOMITING ⤷  Get Started Free
Acacia BARHEMSYS amisulpride SOLUTION;INTRAVENOUS 209510-002 Sep 1, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free PREVENTION OF POST-OPERATIVE NAUSEA AND VOMITING ⤷  Get Started Free
Acacia BARHEMSYS amisulpride SOLUTION;INTRAVENOUS 209510-002 Sep 1, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free PREVENTION AND TREATMENT OF POST-OPERATIVE NAUSEA AND VOMITING ⤷  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

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