Enhanced Treatment of Cholestatic Diseases with Elafibranor

Publication ID: 24-11857523_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Treatment of Cholestatic Diseases with Elafibranor,” Published Technical Disclosure No. 24-11857523_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857523_0001_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,523.

Summary of the Inventive Concept

This inventive concept introduces novel methods and systems for treating cholestatic diseases, particularly PBC, by improving the efficacy, safety, and bioavailability of elafibranor, a promising therapeutic agent.

Background and Problem Solved

The original patent disclosed methods for treating pruritus associated with cholestatic diseases using elafibranor. However, the existing patent has limitations, such as variable bioavailability, potential side effects, and limited treatment options. The new inventive concept addresses these limitations by introducing controlled release systems, liposomal formulations, combination therapies, and personalized dosing strategies.

Detailed Description of the Inventive Concept

The new inventive concept comprises four key aspects: (1) a system for controlled release of elafibranor, ensuring prolonged efficacy while minimizing side effects; (2) a liposomal formulation to enhance bioavailability; (3) a combination therapy with a bile acid sequestrant to optimize therapeutic effects; and (4) a device for monitoring patient response and predicting treatment outcomes based on genetic markers. These innovations collectively improve the treatment of cholestatic diseases, offering patients more effective and personalized therapeutic options.

Novelty and Inventive Step

The new claims introduce novel and non-obvious solutions to the limitations of the original patent, including controlled release systems, liposomal formulations, and combination therapies. These innovations provide a significant improvement over the existing art, enabling more effective and efficient treatment of cholestatic diseases.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include different formulations, such as nanoparticles or microemulsions, or varying the ratio of elafibranor to bile acid sequestrant. Additionally, the monitoring device could be adapted for use with other therapeutic agents or diseases, expanding the scope of the inventive concept.

Potential Commercial Applications and Market

The enhanced treatment of cholestatic diseases with elafibranor has significant commercial potential in the pharmaceutical industry, particularly in the areas of gastroenterology and hepatology. The target market includes patients with PBC and other cholestatic diseases, as well as healthcare providers and pharmaceutical companies seeking more effective treatment options.

CPC Classifications

SectionClassGroup
A A61 A61K31/192
A A61 A61K45/06
A A61 A61P37/06

Field of Art

Pharmaceutical medicine, specifically hepatology and drug delivery systems for treating cholestatic liver diseases, with expertise in drug formulation, pharmacokinetics, and targeted therapeutic interventions

Person of Ordinary Skill (PHOSITA) Profile

A medical researcher or pharmaceutical scientist with advanced degrees in pharmacology, medicinal chemistry, or related fields, possessing knowledge of liver disease treatments, drug delivery mechanisms, and therapeutic optimization strategies

Obviousness Rationale

A person having ordinary skill in the art would recognize that the published technical disclosure represents predictable variations and extensions of the source patent's core therapeutic approach. The proposed modifications to elafibranor's delivery, formulation, and administration represent standard pharmaceutical engineering techniques for improving drug efficacy and patient outcomes. These variations would be considered routine optimization strategies within the existing technological framework of cholestatic disease treatment.

Obvious Combinations & Variations

Source Patent Element
Oral administration of elafibranor for treating PBC-related pruritus
PTD Variation
Controlled release system for prolonged elafibranor delivery
Obviousness Reasoning
Extending drug release duration is a known pharmaceutical technique for improving patient compliance and maintaining consistent therapeutic levels, representing a predictable design choice for a skilled practitioner
Source Patent Element
Pharmaceutical composition for treating cholestatic diseases
PTD Variation
Liposomal formulation to enhance bioavailability
Obviousness Reasoning
Liposomal drug delivery is a well-established method for improving absorption and reducing side effects, which would be an obvious optimization strategy for a skilled researcher
Source Patent Element
Method of treating PBC with elafibranor
PTD Variation
Combination therapy with bile acid sequestrant
Obviousness Reasoning
Combination therapies are standard practice in treating complex diseases, and a skilled practitioner would recognize the potential synergistic effects of combining complementary therapeutic agents
Source Patent Element
Treatment of cholestatic diseases with pharmaceutical composition
PTD Variation
Genetic marker-based treatment monitoring device
Obviousness Reasoning
Personalized medicine and genetic screening are established approaches in modern pharmaceutical research, representing a logical extension of existing treatment methodologies
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in this published technical disclosure would have been obvious to a person having ordinary skill in the art at the time of invention, with a reasonable expectation of success, when considered in light of US Patent 11857523. The proposed modifications represent routine pharmaceutical engineering techniques that would be apparent to a skilled practitioner seeking to optimize therapeutic interventions for cholestatic diseases.

Original Patent Information

Patent NumberUS 11,857,523
TitleMethods of treatment of cholestatic diseases
Assignee(s)Genfit