About this trial
This is a multi-site study of ALS participants and healthy controls who will undergo brain and cervical spine MRIs and NfL blood testing at up-to 4 time points over the course of a year. The primary goal is to identify objective biomarkers of disease progression that are biologically relevant, linearly progressive, and sensitive to change.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
< 36 months since onset of symptoms
Definite, probable, lab-supported probable, or possible ALS by El Escorial criteria OR definite, probable, or possible ALS per Awaji-Shima criteria OR meets Gold Coast criteria
Forced vital capacity within the last 90 days ≥ 60% of the predicted value
Able to consent for themselves
Disqualifiers
Individuals will be excluded if they have any condition that makes MRI unsafe or if they are unable to comply with instructions.
All participants will undergo a neurologic examination at enrollment. Control participants with clinically significant abnormal findings on neurological examination will be excluded from the study.
Trial population
Adults with early-stage ALS
Trial design
Cohort
Cross-sectional
Treatments tested in this trial
Magnetic Resonance Imaging
Diagnostic testParticipants will undergo 3T MRI scanning of the brain and cervical spine MRIs
Plasma neurofilament light chain (NfL) quantification
Diagnostic testParticipants will undergo a blood draw for the quantification of plasma neurofilament light chain
Treatment groups
Trial outcomes
Primary outcomes
Fiber Density
This measure comes from the biophysical model used in brain imaging and is collected using MRI. It refers to the volume of the intra-axonal compartment per unit volume of the tissue. As this is a fraction it does not have a unit.
Fiber Cross-Section
This measure comes from the biophysical model used in brain imaging and is collected using MRI. It refers to the change it fiber cross-section at the fiber bundle level when undergoing spatial normalization. This measure does not have a unit.
Orientation Dispersion
This measure comes from the biophysical model used in brain imaging and is collected using MRI. Orientation dispersion is a measure of the uncertainty in the estimation of the fiber bundle orientation. It varies from 0 to 1 and does not have a unit. Higher values indicate greater uncertainty in estimation.
Intracellular Volume Fraction
This measure comes from the biophysical model used in brain imaging and is collected using MRI. It is the proportion of the imaging voxel occupied by intracellular compartments. This ratio varies from 0 to 1 and does not have a unit. Larger values indicate greater density of intracellular compartments.
Secondary outcomes
Plasma neurofilament light (NfL) quantification
Plasma NfL quantification will be reported in units of pg/ml.
ALS Functional Rating Scale, Revised (ALSFRS-R)
The ALSFRS-R includes 12 questions. Each task is rated on a five-point scale from 0 (can't do) to 4 (normal ability). Individual item scores are summed to produce a reported score of between 0=worst and 48=best.
Edinburgh Cognitive and Behavioural Screen (ECAS)
The ECAS is a 20-minute assessment of language, memory, verbal fluency, executive function, visuospatial function, and social cognition, which produce a number of subscales with a maximum total score of 136. Higher scores indicate better functioning.
Penn Upper Motor Neuron Score
The Penn Upper Motor Neuron Score (PUMNS) is a 28-item scale that measures upper motor neuron (UMN) signs in amyotrophic lateral sclerosis (ALS). The scale ranges from 0 (normal) to 32 (for widespread/severe UMN involvement) and evaluates the bulbar region (scores 0-4), upper limbs (scores 0-14), and lower limb (scores 0-14). Higher scores indicate greater disease burden.
Sponsors and contacts
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University of Minnesota
Lead sponsor
Food and Drug Administration (FDA)
Collaborator
Minnesota Office of Higher Education
Collaborator