Enhanced Bacillus Calmette-Guerin (BCG) and Antigen Presenting Cells for Bladder Cancer Treatment

Publication ID: 24-11857612_0001_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Bacillus Calmette-Guerin (BCG) and Antigen Presenting Cells for Bladder Cancer Treatment,” Published Technical Disclosure No. 24-11857612_0001_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857612_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. 11,857,612.

Summary of the Inventive Concept

The inventive concept disclosed herein relates to novel improvements and enhancements to the original Bacillus Calmette-Guerin (BCG) and antigen presenting cells composition for treating bladder cancer, focusing on direct improvements and enhancements to make the original inventive concept better, faster, safer, or more efficient.

Background and Problem Solved

The original patent disclosed the use of BCG and antigen presenting cells for treating bladder cancer. However, the original composition had limitations, such as limited efficacy in elderly patients, lack of personalized treatment options, and limited immune response monitoring capabilities. The new inventive concept addresses these limitations by introducing novel formulations, devices, and methods that enhance the immune response, provide personalized treatment options, and enable effective immune response monitoring.

Detailed Description of the Inventive Concept

The new inventive concept comprises five key aspects: (1) a method for treating bladder cancer in elderly patients by administering a vaccine composition with enhanced immune response; (2) a system for personalized bladder cancer treatment using a device for isolating antigen presenting cells and a processor for determining optimal IL-15:IL-15Rα fusion protein complex dosage; (3) a vaccine composition with genetically modified antigen presenting cells expressing a bladder cancer-specific antigen; (4) a method for monitoring immune response to bladder cancer treatment by analyzing urine samples or bladder mucosa for immune cell activation markers; and (5) a kit for preparing a vaccine composition with an instruction manual for formulating the vaccine composition with an IL-15:IL-15Rα fusion protein complex. These aspects work together to provide a more effective, personalized, and efficient treatment for bladder cancer.

Novelty and Inventive Step

The new inventive concept is novel and non-obvious compared to the original patent, as it introduces new formulations, devices, and methods that address the limitations of the original composition. The inventive step lies in the combination of these new aspects, which provide a more comprehensive and effective treatment for bladder cancer.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different types of antigen presenting cells, modifying the IL-15:IL-15Rα fusion protein complex, or incorporating additional immune response enhancers. Variations of the system for personalized treatment could include using different devices or processors for determining optimal dosage.

Potential Commercial Applications and Market

The new inventive concept has significant commercial potential in the bladder cancer treatment market, which is expected to grow significantly in the coming years. The inventive concept's focus on personalized treatment, enhanced immune response, and effective immune response monitoring makes it an attractive solution for patients, clinicians, and pharmaceutical companies.

CPC Classifications

SectionClassGroup
A A61 A61K39/04
A A61 A61K35/15
A A61 A61K39/00114
A A61 A61K39/001119
A A61 A61K39/39
A A61 A61K2039/515
A A61 A61K2039/585

Original Patent Information

Patent NumberUS 11,857,612
TitleBacillus Calmette-Guerin (BCG) and antigen presenting cells for treatment of bladder cancer
Assignee(s)NantCell, Inc.