Bladder Instillation Composition with pH Buffer for Stability

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Solution Overview

Problem

Current treatments for interstitial cystitis lack effectiveness and stability, with existing compositions exhibiting poor storage stability and variable efficacy, often leading to the use of degraded products that can be harmful and reduce treatment success.

Innovation Solution

A pharmaceutical composition containing chondroitin sulfate, hyaluronic acid, and a phosphate buffer system, optimized to maintain a pH between 6.1 and 7.9, which enhances storage stability and efficacy by forming a stable matrix that prevents degradation of active ingredients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If existing compositions for treating interstitial cystitis are used, then treatment is provided, but storage stability is poor and active ingredients degrade

Engineering Contradiction:
Improvestorage stabilityVSAvoidefficacy consistency
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent applies parameter changes by optimizing the pH range (6.1-7.9) and specific concentrations of chondroitin sulfate (20 mg/ml) and hyaluronic acid (16 mg/ml) to enhance storage stability and prevent degradation of active ingredients during storage

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite material approach by combining chondroitin sulfate and hyaluronic acid in specific ratios within a phosphate buffer system, creating a synergistic formulation that improves both storage stability and therapeutic efficacy compared to single-ingredient compositions

Inventive Principle:
Principle #40Composite materials

2Duration of action of stationary object

If existing compositions are stored over time, then storage is possible, but active ingredient concentrations decrease and harmful degradation products form

Engineering Contradiction:
Improvestorage durationVSAvoiddegradation products
Core Design Contradiction:
Duration of action of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by incorporating a phosphate buffer system that proactively maintains pH within the optimal range (6.1-7.9), preventing the chemical conditions that would lead to degradation of chondroitin sulfate and hyaluronic acid before degradation can occur

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent optimizes concentration parameters and pH control to stabilize the composition during storage, preventing the formation of harmful degradation products while maintaining high active ingredient concentrations over extended storage periods

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11141424B2Bladder instillation composition containing chondroitin sulfate (20 mg/ml), hyaluronic acid (16 mg/ml) and a phosphate buffer (pH 6.1 to 7.9) with increased storage stability for treating cystitis
Publication Date: 2021.10.12 FARCO PHARMA GMBH

AI summary

The invention relates to a composition, in particular a pharmaceutical composition, which is suitable in particular for the prophylactic and/or therapeutic treatment preferably of inflammatory diseases of the urogenital tract, in particular inflammatory diseases of the bladder, preferably cystitis, to the uses thereof, to a storage or application device relating to same, to a packaging unit, and finally to a kit which is designed in particular as an instillation system.