Immune Marker Classification for SIRT Response Prediction

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Solution Overview

Problem

Current methods for classifying cancer patients for treatment with selective internal radiation therapy (SIRT) lack accuracy in predicting response, leading to suboptimal treatment outcomes.

Innovation Solution

An in vitro method involving the measurement of immune marker expression in leukocyte samples to classify patients as sustained responders (SR) or transient/non-responders (TR/NR) to SIRT, using a processing unit to allocate probability scores based on immune marker profiles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If current classification methods are used for SIRT treatment, then treatment can be provided to patients, but prediction accuracy of treatment response is low

Engineering Contradiction:
Improveprediction accuracyVSAvoidclassification system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the patient population into distinct response categories (sustained responders, transient responders, non-responders) based on immune marker profiles. This segmentation enables precise prediction of treatment response by classifying patients into specific groups with characteristic immune signatures, directly improving measurement precision while maintaining manageable system complexity through defined classification criteria.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes changes in immune marker parameters (expression levels, ratios, combinations) to predict treatment response. By monitoring specific immune parameters before and after treatment, the system achieves high prediction accuracy without requiring complex diagnostic infrastructure, as these parameters can be measured using standard immunological assays.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If immune marker measurement is performed to classify patients, then prediction accuracy improves, but time and resources for analysis increase

Engineering Contradiction:
Improveresponse prediction accuracyVSAvoidclassification time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs immune marker measurements and classifications before treatment initiation (pre-treatment baseline assessment). This preliminary action allows clinicians to identify sustained responders who are most likely to benefit from SIRT, enabling informed treatment decisions before committing resources, thereby reducing wasted time and resources on patients unlikely to respond.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent focuses measurements on specific, locally-defined immune markers and their relationships (ratios, combinations) rather than comprehensive immune profiling. This localized approach to quality measurement captures the essential predictive information needed for accurate classification while minimizing the time and resources required for analysis.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If comprehensive immune marker profiling is used, then treatment personalization improves, but system complexity increases

Engineering Contradiction:
Improvetreatment personalizationVSAvoidprofiling system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by focusing on specific immune markers and their relationships rather than comprehensive immune system profiling. By measuring particular markers (and their ratios or combinations) that have demonstrated predictive value, the system achieves effective treatment personalization without the complexity of analyzing the entire immune repertoire.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent creates a universal classification framework that can be applied across different SIRT treatment contexts and patient populations. The immune marker-based classification system serves multiple functions: predicting response, guiding treatment decisions, and potentially monitoring treatment efficacy, thereby achieving high adaptability through a relatively simple, multi-functional assessment tool.

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

Data Source

PatentUS12276664B2Method for classifying cancer patients into appropriate hepatocellular carcinoma treatment groups and compounds for treating the patient
Publication Date: 2025.04.15 SINGAPORE HEALTH SERVICES PTE LTD
  • US12276664B2 patent drawing
  • US12276664B2 patent drawing
  • US12276664B2 patent drawing

AI summary

A method for the prognosis of response to treatment for a patient suffering from cancer, the method comprising: measuring the expression of at least one immune marker in a leukocyte sample taken from the patient with cancer; classifying the patient sample into (i) sustainable responders (SR) to selective internal radiation therapy (SIRT) or (ii) transient/non-responders (TR/NR) to (SIRT) based on expression of the at least one immune marker in relation to a predetermined value and treating sustainable responders (SR) to SIRT or SIRT or a composition comprising SIRT and an immunotherapy. In a preferred embodiment, the method is for the prognosis of response to treatment of a Hepatocellular carcinoma (HCC) patient comprising detecting the co-expression of PD-1 or Tim-3 with CCR5; or expression of PD-1, Tim-3, CXCR6, or combinations thereof in a leukocyte sample taken from the patient.