Genomic Classifier for Lung Nodule Malignancy Risk

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Solution Overview

Problem

Current lung cancer diagnosis methods are invasive and often fail to detect cancer early, leading to high mortality rates due to the inability to accurately assess the malignancy risk of lung nodules, especially in intermediate-risk patients.

Innovation Solution

A method using a trained algorithm to analyze genomic and clinical features from nasal or bronchial epithelial samples, assigning a second-level risk of malignancy with a negative predictive value greater than 90%, allowing for non-invasive or minimally invasive risk stratification and potentially avoiding invasive diagnostic procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If invasive diagnostic procedures (biopsy, bronchoscopy) are used to assess lung nodule malignancy, then diagnostic accuracy can be improved, but patient suffering and procedural complexity increase

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidpatient suffering
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent introduces genomic classifiers and risk assessment tools as intermediary methods between non-invasive imaging and invasive biopsy procedures. These classifiers analyze genomic data from liquid biopsies or imaging features to predict malignancy risk, serving as a mediator that reduces the need for painful invasive procedures while maintaining diagnostic accuracy through high negative predictive value (>90%).

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces mechanical invasive procedures (physical biopsy, bronchoscopy) with computational and molecular methods. Genomic sequencing, bioinformatic analysis, and AI-based risk stratification algorithms substitute for traditional mechanical tissue sampling, achieving comparable or superior diagnostic accuracy without physical invasion.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If invasive diagnostic procedures are performed to confirm malignancy, then reliability of cancer detection improves, but the complexity and invasiveness of the diagnostic process worsens

Engineering Contradiction:
Improvecancer detection reliabilityVSAvoiddiagnostic process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the diagnostic process into distinct risk stratification tiers (low, intermediate, high risk) based on genomic classifier results. This segmentation allows tailored diagnostic pathways where low-risk patients avoid invasive procedures entirely, intermediate-risk patients receive further non-invasive evaluation, and only high-risk patients undergo invasive biopsy, thereby reducing overall diagnostic complexity while maintaining reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary risk assessment using non-invasive genomic classifiers and imaging analysis before committing patients to invasive diagnostic procedures. This preliminary action filters out low-risk cases that would not benefit from invasive procedures, reducing unnecessary diagnostic complexity while preserving reliability for true positive cases.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If traditional imaging and biopsy methods are used for lung cancer detection, then early detection capability is limited, but the simplicity of the method is maintained

Engineering Contradiction:
Improveearly detection capabilityVSAvoiddiagnostic method complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent changes the diagnostic parameters from traditional anatomical imaging metrics to molecular genomic parameters. By analyzing genomic alterations in circulating tumor DNA, cell-free DNA, or tissue samples through sequencing and bioinformatic classification, the system detects cancer at molecular levels before anatomical changes are visible on traditional imaging, achieving superior early detection capability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240071622A1Clinical classifiers and genomic classifiers and uses thereof
Publication Date: 2024.02.29 VERACYTE INC
  • US20240071622A1 patent drawing
  • US20240071622A1 patent drawing
  • US20240071622A1 patent drawing

AI summary

Provided herein are methods and systems for analyzing a sample of a subject to determine whether the subject has, or is at risk of having or developing, a cancer, such as lung cancer.