Personalized Alpha-1 Antitrypsin Therapy for Reducing Acute Graft Versus Host Disease Risk

Publication ID: 24-11857610_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Personalized Alpha-1 Antitrypsin Therapy for Reducing Acute Graft Versus Host Disease Risk,” Published Technical Disclosure No. 24-11857610_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857610_0001_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. 11,857,610.

Summary of the Inventive Concept

The invention provides an improved method for reducing the risk of acute graft versus host disease (aGVHD) in patients undergoing hematopoietic cell transplantation (HCT) by leveraging genetic profiling, personalized treatment schedules, and optimized alpha-1 antitrypsin (A1AT) dosing.

Background and Problem Solved

The original patent disclosed methods for reducing aGVHD risk by administering A1AT prior to and following HCT. However, these methods have limitations, including a one-size-fits-all approach to dosing and a lack of consideration for individual genetic profiles. The new inventive concept addresses these limitations by incorporating genetic profiling and personalized treatment schedules to minimize aGVHD risk.

Detailed Description of the Inventive Concept

The new inventive concept comprises a system and method for reducing aGVHD risk by administering A1AT according to a personalized treatment schedule based on the patient's genetic profile. The system includes a processor configured to analyze the patient's genetic data and determine the optimal A1AT dosage and administration schedule. The method involves monitoring the patient's cytokine levels and adjusting the A1AT dosage accordingly. Additionally, the inventive concept includes a composition for treating aGVHD, comprising A1AT and at least one immunomodulatory agent, administered in a single dose prior to HCT. A real-time monitoring system is also disclosed, comprising a sensor configured to detect biomarkers of aGVHD and a processor configured to adjust the A1AT dosage based on the detected biomarkers.

Novelty and Inventive Step

The new inventive concept provides a novel approach to aGVHD risk reduction by incorporating genetic profiling and personalized treatment schedules, which is not disclosed in the original patent. The use of genetic profiling to determine optimal A1AT dosing and administration schedules is a non-obvious improvement over the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept include using different types of genetic profiling, such as whole-genome sequencing or gene expression analysis, to determine optimal A1AT dosing. Additionally, the inventive concept could be adapted for use in other types of transplantation, such as solid organ transplantation.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the field of hematopoietic cell transplantation, where aGVHD is a major complication. The market for aGVHD prevention and treatment is expected to grow significantly in the coming years, and the inventive concept is well-positioned to capitalize on this trend.

CPC Classifications

SectionClassGroup
A A61 A61K38/57
A A61 A61K35/12
A A61 A61P37/06
A A61 A61K2035/124

Original Patent Information

Patent NumberUS 11,857,610
TitleMethods for reducing risk of onset of acute graft versus host disease after hematopoietic cell transplantation
Assignee(s)CSL Behring AG