PREP Inhibitors for Lung Inflammation in COPD

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Solution Overview

Problem

Current treatments for chronic obstructive pulmonary disease (COPD) primarily focus on symptom management and are limited in addressing the underlying inflammatory processes, with no effective cure available, and existing medications have significant side effects due to immunomodulatory actions.

Innovation Solution

Development of novel low molecular weight compounds that inhibit prolyl endopeptidase (PREP), reducing the production of proline-glycine-proline (PGP), a key mediator in lung inflammation, thereby decreasing neutrophil recruitment and inflammation in COPD and other inflammatory disorders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional immunomodulatory medications are used to treat COPD, then inflammatory processes are suppressed, but significant side effects occur

Engineering Contradiction:
Improveinflammatory processesVSAvoidside effects
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent uses selective PREP inhibition as an intermediary mechanism to reduce PGP levels, which in turn decreases neutrophil recruitment and inflammation. This indirect approach avoids direct immunomodulation and its associated side effects, targeting the specific inflammatory pathway through PGP-PREP interaction rather than broad immune suppression

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the biochemical parameter of PGP concentration by selectively inhibiting PREP enzyme activity. This specific parameter change (reducing PGP levels) achieves anti-inflammatory effects without the non-specific immunomodulatory actions that cause side effects in conventional treatments

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If symptom management treatments are used for COPD, then patient symptoms are relieved, but the underlying inflammatory processes are not addressed

Engineering Contradiction:
Improvesymptom managementVSAvoidunderlying inflammatory processes
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by targeting and reducing PGP levels before they can fully drive neutrophil recruitment and inflammatory cascades. By inhibiting PREP early in the inflammatory pathway, the treatment prevents the full development of inflammatory processes rather than merely managing their symptoms

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention extracts and targets the specific inflammatory mediator PGP from the complex inflammatory pathway. By selectively removing or reducing PGP through PREP inhibition, the treatment addresses the root inflammatory driver rather than treating downstream symptoms

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10722501B2Substituted 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-A]pyridine-3(2H)-ones and 2,5,6,7-tetrahydro-3H-pyrrolo[2,1-C][1,2,4]triazol-3-ones, and use thereof
Publication Date: 2020.07.28 BAYER PHARMA AG
  • US10722501B2 patent drawing
  • US10722501B2 patent drawing
  • US10722501B2 patent drawing

AI summary

The present application relates to novel substituted 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridin-3(2H)-ones and 2,5,6,7-tetrahydro-3H-pyrrolo[2,1-c][1,2,4]triazol-3-ones of formula (I), to processes for preparation thereof, to the use thereof, alone or in combinations, for treatment and/or prophylaxis of diseases, and to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases, especially for treatment and/or prophylaxis of lung inflammation disorders.