Multi-site Neuromodulation for ALS Treatment
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Solution Overview
Problem
Current treatments for amyotrophic lateral sclerosis (ALS) are limited in effectiveness, with only three FDA-approved drugs offering very limited benefits, and there is a significant unmet need for non-invasive treatments that can slow or halt the progression of the disease.
Innovation Solution
The use of non-invasive multi-site direct current stimulation (DCS) applied to multiple locations along the neural axis, including the spinal column, peripheral nerves, and cranium, to suppress hyperexcitable spinal motor neurons and reduce spasticity and disease progression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current FDA-approved drugs are used for ALS treatment, then some therapeutic effect is achieved, but the effectiveness is very limited and cannot sufficiently slow or halt disease progression
Solution Approach 1:
The patent replaces pharmacological treatment (chemical system) with electrical stimulation (physical system). Multi-site DCS uses direct current electrical fields to modulate neuronal activity and protein expression, substituting drug-based therapy with a physics-based approach that directly targets hyperexcitability and disease progression mechanisms without relying on metabolic pathways affected by the disease.
Solution Approach 2:
The patent changes the fundamental treatment parameter from chemical concentration (drug dosage) to physical intensity (electrical current density, pulse duration, frequency). By adjusting electrical stimulation parameters such as current strength, pulse width, and stimulation pattern, the treatment can be optimized to reduce neuronal hyperexcitability and slow disease progression more effectively than fixed-dose pharmacological approaches.
2Reliability
If invasive treatments are used to address ALS, then some therapeutic benefit may be achieved, but the treatment complexity and patient burden increase significantly
Solution Approach 1:
The patent divides the treatment into multiple independent stimulation sites along the spinal cord and neural axis, each addressed by separate electrode placements. This segmented approach allows non-invasive treatment of multiple affected regions simultaneously, avoiding the need for single invasive implantation while maintaining comprehensive therapeutic coverage of the disease-affected areas.
Solution Approach 2:
The patent uses skin surface electrodes as intermediaries to deliver electrical stimulation without direct tissue penetration. These non-invasive electrodes act as mediators between the electrical stimulus and the underlying neural structures, enabling treatment efficacy comparable to invasive methods while eliminating surgical risks, infection concerns, and device implantation complexity.
3Ease of operation
If adaptive treatments directed at clinical manifestations are used, then symptomatic relief is achieved, but the underlying disease progression is not halted
Solution Approach 1:
The patent applies electrical stimulation before severe neuronal damage occurs, targeting the underlying hyperexcitability and protein misfolding processes early in disease progression. By intervening at the molecular and cellular level through electrical field effects on protein expression and neuronal membrane stability, the treatment prevents rather than merely responds to clinical manifestations, potentially halting disease progression before irreversible damage accumulates.
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
The multi-site DCS approach has been shown to reduce tremors, slow disease progression, improve motor function, increase the preservation of spinal motor neurons, and enhance survival in SOD1-G93A mice models of ALS, by modulating protein expression and reducing neuronal hyperexcitability.
Implementation Method 1
applying a source of direct current (DC) to multiple locations along the neural axis
Data Source
AI summary
Methods and systems for treating ALS and related motor neuron diseases using multi-site neuromodulation are disclosed.