New Combination Of Active Agents For The Treatment Of Progressive Fibrosing Interstitial Lung Diseases (Pf-Ild)

Patent No. EP3700529 (titled "New Combination Of Active Agents For The Treatment Of Progressive Fibrosing Interstitial Lung Diseases (Pf-Ild)") was filed by Boehringer Ingelheim on Oct 12, 2018. The application was issued on Jul 9, 2025.

Patent Summary

This invention provides a combination treatment for Progressive Fibrosing Interstitial Lung Diseases (PF-ILD), specifically Idiopathic Pulmonary Fibrosis (IPF) and Systemic Sclerosis ILD (SSc-ILD). The combination comprises a therapeutically effective amount of Nintedanib (or its monoethanesulfonate salt) and a PDE4B-inhibitor of formula I, preferably formula III. Formula I features a 6-membered aromatic Ring A with a chlorine substituent (R=Cl) and a chiral sulfur atom (S*). This combination demonstrates an overadditive synergistic inhibitory effect on fibroblast proliferation and inhibits the fibroblast-to-myofibroblast transition, providing complementary therapeutic efficacy to Nintedanib alone. The treatment aims to slow disease progression with acceptable gastrointestinal tolerability. Nintedanib is preferably administered to achieve a human free fraction between 1 nMol/L and 300 nMol/L.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
BOTTI & FERRARIApr 9, 2026BOTTI & FERRARI
TEVA PHARMACEUTICAL INDUSTRIES LTDApr 2, 2026ELKINGTON AND FIFE

Dossier Documents

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  • Date

    Description

EP3700529

BOEHRINGER INGELHEIM
Application Number
EP18785961A
Filing Date
Oct 12, 2018
Status
Granted And Under Opposition
Jun 6, 2025
Publication Date
Jul 9, 2025