Enhanced Stability Ready-to-Use Injectables of Melphalan

Publication ID: 24-11857677_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Stability Ready-to-Use Injectables of Melphalan,” Published Technical Disclosure No. 24-11857677_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857677_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,677.

Summary of the Inventive Concept

A novel approach to stabilize melphalan formulations, providing improved stability, safety, and efficiency in ready-to-use injectables for cancer treatment.

Background and Problem Solved

The original patent, 'Ready to use injectable formulations of melphalan and processes for preparation thereof', provides a foundation for stable melphalan formulations. However, the existing formulation still faces limitations in terms of degradation and stability. The new inventive concept addresses these limitations by introducing pH-adjusting agents, optimized solvent systems, and antimicrobial preservatives to enhance stability and shelf life.

Detailed Description of the Inventive Concept

The new inventive concept comprises a system for stabilizing melphalan formulations, a method for preparing ready-to-use injectable formulations, a melphalan formulation kit, and a process for preparing stable ready-to-use injectable formulations. These innovations involve the use of pH-adjusting agents to maintain a pH range of 5.0 to 7.0, solvent systems comprising polyethylene glycol, ethanol, and water, and preservatives such as benzyl alcohol and phenol. These components work synergistically to reduce degradation, enhance stability, and provide antimicrobial properties.

Novelty and Inventive Step

The new claims introduce novel pH-adjusting agents, optimized solvent systems, and antimicrobial preservatives, which are not present in the original patent. These innovations provide an inventive step over the existing formulation, enabling improved stability, safety, and efficiency in ready-to-use injectables.

Alternative Embodiments and Variations

Alternative embodiments may include using different pH-adjusting agents, solvent systems, or preservatives. Variations of the melphalan formulation kit could include different packaging configurations or reconstitution methods. Additionally, the inventive concept could be adapted for use with other pharmaceutical compounds or in different therapeutic areas.

Potential Commercial Applications and Market

The enhanced stability ready-to-use injectables of melphalan have significant commercial potential in the cancer treatment market. The improved stability and shelf life of these formulations can reduce costs associated with formulation preparation, storage, and transportation, while also enhancing patient safety and convenience. The target industries include pharmaceutical companies, hospitals, and cancer treatment centers.

CPC Classifications

SectionClassGroup
A A61 A61K9/08
A A61 A61K9/0019
A A61 A61K31/198
A A61 A61K47/10
A A61 A61K47/183
A A61 A61K47/32

Original Patent Information

Patent NumberUS 11,857,677
TitleReady to use injectable formulations of melphalan and processes for preparation thereof
Assignee(s)RK PHARMA INC.