Linzagolix Oral Solid Formulation for Rapid, Stable Dissolution

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Solution Overview

Problem

Existing oral solid preparations containing Linzagolix or its pharmacologically acceptable salts do not maintain rapid dissolution properties when the content varies over a wide range, and they lack adequate storage stability.

Innovation Solution

An oral solid preparation comprising Linzagolix or its pharmacologically acceptable salt, crystalline cellulose, low-substituted hydroxypropyl cellulose, and one or more disintegrants such as carmellose sodium, carmellose calcium, or croscarmellose sodium, with specific ratios and formulations to ensure rapid dissolution and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the content of Linzagolix in the oral solid preparation is increased to achieve higher therapeutic efficacy, then the therapeutic effectiveness is improved, but the dissolution property deteriorates and rapid dissolution cannot be satisfied

Engineering Contradiction:
Improvecontent of LinzagolixVSAvoiddissolution speed
Core Design Contradiction:
Quantity of substanceVSSpeed

Solution Approach 1:

The patent changes the physical and chemical parameters of the formulation by introducing specific disintegrants (carmellose sodium, carmellose calcium, or croscarmellose sodium) and controlling the total amount of cellulose and disintegrant components within specific ranges (20-40% by mass). This parameter optimization allows the formulation to maintain rapid dissolution even at high Linzagolix content (50-65% by mass), resolving the contradiction between high drug content and fast dissolution rate.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the content of Linzagolix in the oral solid preparation is varied over a wide range to accommodate different dosage requirements, then the adaptability is improved, but the dissolution property deteriorates

Engineering Contradiction:
Improvecontent range of LinzagolixVSAvoiddissolution speed
Core Design Contradiction:
Adaptability or versatilityVSSpeed

Solution Approach 1:

The patent creates a universal formulation formula that can accommodate wide content ranges of Linzagolix (from low to high dosage requirements) while maintaining consistent rapid dissolution properties. The specific combination of disintegrants and cellulose derivatives serves multiple functions: binding, disintegration, and dissolution control, making the formulation adaptable to different therapeutic needs without sacrificing dissolution performance.

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

3Volume of moving object

If the content of Linzagolix in the oral solid preparation is increased to achieve miniaturization, then the dosage form size is reduced, but the dissolution property deteriorates

Engineering Contradiction:
Improvesize of dosage formVSAvoiddissolution speed
Core Design Contradiction:
Volume of moving objectVSSpeed

Solution Approach 1:

The patent optimizes formulation parameters including the total amount of disintegrant and cellulose components (20-40% by mass) and the specific types of disintegrants used. This allows miniaturization of the dosage form while maintaining rapid dissolution through enhanced disintegrant activity and controlled release characteristics, enabling small tablet sizes with high Linzagolix content that still dissolve quickly.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250249004A1Oral solid preparation
Publication Date: 2025.08.07 KISSEI PHARMACEUTICAL CO LTD
  • US20250249004A1 patent drawing
  • US20250249004A1 patent drawing

AI summary

An object of the present invention is to provide an oral solid preparation having a rapid dissolution property even when the content of Linzagolix or a pharmacologically acceptable salt thereof in the oral solid preparation varies over a wide range.The present invention relates to an oral solid preparation comprising Linzagolix or a pharmacologically acceptable salt thereof; crystalline cellulose; low-substituted hydroxypropyl cellulose; and one or more disintegrants selected from the group consisting of carmellose sodium, carmellose calcium and croscarmellose sodium, and the like.