IRAK4 Degraders for Treating Fibrotic Diseases and Beyond

Publication ID: 24-11857535_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “IRAK4 Degraders for Treating Fibrotic Diseases and Beyond,” Published Technical Disclosure No. 24-11857535_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857535_0002_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. 11,857,535.

Summary of the Inventive Concept

This inventive concept expands the application of IRAK4 degraders beyond MYD88-mutant B-cell lymphomas to treat fibrotic diseases, prevent scarring, and address inflammatory bowel disease and dry eye disease, leveraging the unique profile of IRAKIMiD degraders.

Background and Problem Solved

The original patent disclosed the use of IRAK4 degraders for treating MYD88-mutant B-cell lymphomas. However, fibrotic diseases, such as idiopathic pulmonary fibrosis, remain a significant unmet medical need. Current treatments are limited, and there is a pressing need for novel therapeutic approaches. This inventive concept addresses this limitation by applying IRAK4 degraders to fibrotic diseases, capitalizing on their ability to selectively degrade IRAK4 protein and IMiD targets.

Detailed Description of the Inventive Concept

The new claims describe methods for treating fibrotic diseases, detecting fibrotic diseases, preventing scarring, treating inflammatory bowel disease, and treating dry eye disease using IRAK4 degraders. These degraders selectively degrade IRAK4 protein and IMiD targets, thereby reducing fibrosis, inflammation, and promoting tear production. The IRAKIMiD degraders' unique profile, combining IRAK4 degradation and immunomodulatory IMiD activity, enables their application in these new disease areas. The inventive concept encompasses various IRAK4 degraders, including Compound A, and their pharmaceutically acceptable salts.

Novelty and Inventive Step

The new claims introduce a novel application of IRAK4 degraders, moving beyond the original patent's focus on MYD88-mutant B-cell lymphomas. The inventive concept's novelty lies in the recognition of IRAK4 degraders' potential in treating fibrotic diseases and related conditions, which is not obvious from the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different IRAK4 degraders, varying dosing regimens, or combination therapies with other agents. Additionally, the inventive concept could be adapted for use in other disease areas where fibrosis or inflammation play a key role.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the treatment of fibrotic diseases, inflammatory bowel disease, and dry eye disease, with a combined market size projected to exceed $10 billion by 2025. The ability to address these unmet medical needs with a novel therapeutic approach positions IRAK4 degraders as a promising solution for patients and healthcare providers.

Original Patent Information

Patent NumberUS 11,857,535
TitleMethods of treating mutant lymphomas
Assignee(s)Kymera Therapeutics, Inc.