Enhanced Selective Inhibitors of EGFR Exon 20 Insertion Mutants

Publication ID: 24-11857513_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Selective Inhibitors of EGFR Exon 20 Insertion Mutants,” Published Technical Disclosure No. 24-11857513_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857513_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. 11,857,513.

Summary of the Inventive Concept

This inventive concept improves upon the original patent by introducing novel methods, systems, and compositions for treating EGFR-mutated lung cancer, enhancing the efficacy and safety of selective inhibitors, and providing personalized treatment options.

Background and Problem Solved

The original patent disclosed a method for treating malignant lung tumors with EGFR exon 20 insertion mutations. However, the existing approach has limitations in terms of monitoring treatment response, identifying responsive patients, and ensuring optimal bioavailability and toxicity profiles of the inhibitors. This inventive concept addresses these limitations by introducing non-invasive diagnostic imaging techniques, personalized treatment systems, and optimized pharmaceutical compositions.

Detailed Description of the Inventive Concept

The new claims introduce several key advancements. Firstly, the method of claim 1 incorporates monitoring of treatment response using non-invasive diagnostic imaging techniques, enabling more accurate assessment of inhibitor efficacy. Secondly, the system of claim 2 provides personalized cancer treatment by analyzing genomic information and selecting corresponding selective inhibitors. Thirdly, the pharmaceutical composition of claim 3 enhances the bioavailability and reduces the toxicity of the inhibitors. Additionally, the method of claim 4 identifies responsive patients by detecting biomarkers associated with the inhibitor's efficacy, and the kit of claim 5 facilitates diagnosis of EGFR exon 20 insertion mutations.

Novelty and Inventive Step

The new claims introduce several novel and non-obvious features, including the use of non-invasive diagnostic imaging techniques for monitoring treatment response, the integration of genomic information analysis for personalized treatment, and the optimization of pharmaceutical compositions for enhanced bioavailability and reduced toxicity.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different non-invasive diagnostic imaging techniques, such as MRI or PET scans, or the integration of additional biomarkers for identifying responsive patients. Variations of the pharmaceutical composition could include different carrier molecules or formulations to further enhance the inhibitor's efficacy and safety.

Potential Commercial Applications and Market

The enhanced selective inhibitors of EGFR exon 20 insertion mutants have significant commercial potential in the oncology market, particularly in the treatment of non-small cell lung cancer. The personalized treatment approach and optimized pharmaceutical compositions could provide a competitive advantage in the market, and the diagnostic kit could generate additional revenue streams.

CPC Classifications

SectionClassGroup
A A61 A61K31/519
A A61 A61P35/00

Original Patent Information

Patent NumberUS 11,857,513
TitleSelective inhibitor of exon 20 insertion mutant EGFR
Assignee(s)TAIHO PHARMACEUTICAL CO., LTD.