Aldehyde Trapping Agents for Dry Eye Disease Biomarker Assessment

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Solution Overview

Problem

Current treatments for dry eye disease lack effective biomarkers for assessing treatment efficacy and patient selection, leading to inadequate management of ocular inflammation and discomfort.

Innovation Solution

The use of aldehyde markers of oxidative stress, particularly malondialdehyde and 4-hydroxynonenal, as biomarkers to assess the effectiveness of aldehyde trapping agents like reproxalap in treating dry eye disease and ocular inflammation, involving measurement before and after treatment to adjust dosing frequency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If current treatments for dry eye disease are used, then ocular discomfort and inflammation are addressed, but effective biomarkers for assessing treatment efficacy and patient selection are lacking

Engineering Contradiction:
Improvetreatment efficacy assessmentVSAvoidbiomarker information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent measures aldehyde marker levels before treatment begins, establishing a baseline that enables subsequent assessment of treatment efficacy. This preliminary measurement approach allows clinicians to evaluate whether the treatment is working by comparing post-treatment levels against the pre-treatment baseline, thereby solving the lack of biomarkers for efficacy assessment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where aldehyde marker levels are measured both before and after treatment, and this information is used to adjust dosing frequency. The feedback loop (measurement → evaluation → dosing adjustment → re-measurement) enables personalized treatment optimization and provides concrete biomarker-based efficacy assessment that was previously unavailable.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If aldehyde trapping agents are used to treat dry eye disease, then ocular inflammation is reduced, but dosing frequency needs to be optimized for individual patients

Engineering Contradiction:
Improvepersonalized treatment regimenVSAvoiddosing regimen complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent changes the dosing frequency parameter based on measured aldehyde marker levels. Patients with greater than 20% reduction in aldehyde markers receive lower dosing frequency, while those with 20% or less reduction maintain the same or increase dosing frequency. This dynamic parameter adjustment enables personalized treatment that adapts to individual patient response without requiring complex treatment protocols.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for personalized treatment regimens, reducing ocular discomfort and inflammation by correlating decreases in aldehyde markers with symptom improvement, enabling more effective management of dry eye disease.

Implementation Method 1

aldehyde trapping agent is reproxalap... measuring the level of an aldehyde marker of oxidative stress... a reduction in level of aldehyde marker of oxidative stress indicates effectiveness

Methodology Applied
Scientific EffectChemical reaction (aldehyde trapping): Chemical Bonding

Data Source

PatentUS20230228744A1Dry eye disease biomarkers and their use for treatment
Publication Date: 2023.07.20 ALDEYRA THERAPEUTICS INC
  • US20230228744A1 patent drawing
  • US20230228744A1 patent drawing
  • US20230228744A1 patent drawing

AI summary

The present invention relates to use of biomarkers of dry eye disease, and use of the biomarkers for selection of subjects for treatment and treatment of dry eye disease.