Stabilized Bacterial Extract Formulations for Clear Liquid Dosing

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Solution Overview

Problem

Existing bacterial extract formulations are physically unstable, leading to sedimentation and precipitation, which limits their use in alternative pharmaceutical forms and administration routes such as intranasal, pulmonary, and intratracheal, and poses challenges in manufacturing and storage, affecting regulatory approval and patient convenience.

Innovation Solution

Stabilized bacterial extract formulations prepared by alkaline lysis and neutralization with specific organic acids, followed by filtration and pH adjustment, ensuring improved physical stability under various conditions, allowing for diverse pharmaceutical forms and routes of administration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If bacterial extracts are formulated in liquid or alternative forms, then ease of administration and patient convenience are improved, but physical stability deteriorates due to sedimentation and precipitation

Engineering Contradiction:
Improveease of administrationVSAvoidphysical stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent applies parameter changes by modifying the chemical composition parameters of the bacterial extract formulation. Specifically, it adjusts the concentration of excipients, pH levels, and buffer compositions to optimize physical stability while maintaining the extract's bioactivity in liquid and alternative formulations suitable for various administration routes.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials by creating a multi-component formulation system that combines bacterial extract with carefully selected excipients, stabilizers, and buffer systems. This composite approach prevents sedimentation and precipitation while enabling the development of liquid formulations, inhalable powders, and other alternative dosage forms that improve ease of administration.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If bacterial extracts are used in alternative pharmaceutical forms and administration routes, then adaptability and versatility are improved, but manufacturing complexity increases due to stability challenges

Engineering Contradiction:
Improveadaptability to administration routesVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies universality by developing a standardized stable formulation platform that can be adapted across multiple administration routes and pharmaceutical forms. The core stabilized bacterial extract composition serves as a universal base that can be processed into liquid formulations for injection, inhalable powders for respiratory delivery, and other alternative dosage forms, reducing manufacturing complexity through platform technology.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements preliminary action by pre-stabilizing the bacterial extract through optimized formulation development and stability testing before scaling to manufacturing. This preliminary stabilization work establishes robust formulation parameters and processing protocols that simplify subsequent manufacturing operations across different pharmaceutical forms and administration routes.

Inventive Principle:
Principle #10Preliminary action

3Duration of action of stationary object

If bacterial extracts are stored for extended periods, then duration of action is improved, but stability deteriorates due to aggregation and precipitation

Engineering Contradiction:
Improvestorage durationVSAvoidcompositional stability
Core Design Contradiction:
Duration of action of stationary objectVSStability of the object's composition

Solution Approach 1:

The patent applies continuity of useful action by implementing a continuous stabilization strategy that maintains formulation integrity throughout the entire storage duration. This involves selecting excipients and buffer systems that continuously prevent aggregation and precipitation, along with establishing appropriate storage conditions that maintain compositional stability over extended periods, thereby enabling long-term storage while preserving bioactivity.

Inventive Principle:
Principle #20Continuity of useful action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The stabilized bacterial extracts maintain clarity and prevent aggregation for extended periods, facilitating broader administration routes, enhancing manufacturing processes, and ensuring precise dosing with user-friendly delivery devices, improving treatment adherence and patient convenience.

Implementation Method 1

The present invention relates to a stable purified bacterial extract obtainable by alkaline lysis of one or more bacterial species

Methodology Applied
Scientific EffectAlkaline lysis:

Implementation Method 2

followed purification by filtration of the neutralized bacterial extract

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP4721819A2Stable bacterial extracts as pharmaceuticals
Publication Date: 2026.04.08 OM PHARMA SA
  • EP4721819A2 patent drawingFigure 1
  • EP4721819A2 patent drawingFigure 2
  • EP4721819A2 patent drawingFigure 3

AI summary

The present invention relates to novel stable bacterial extract preparations having substantial increased stability overtime, novel methods of preparation thereof, pharmaceutical formulations based on these novel stabilized bacterial extracts, as well as novel routes of administration and delivery devices for treating and/or preventing acute and chronic immunological disorders resulting from infections and/or inflammation and/or neoplasms and/or dysbiosis.