NCT04858555

Brief Summary

Recently two staging systems have been proposed for amyotrophic lateral sclerosis (ALS), based on clinical milestones The King's college clinical staging system (1) and ALS Milano-Torino Staging (ALS-MITOS) (2). Further research to validate and develop an accurate staging system in different populations will improve our understanding of its pathogenesis, disease activity and progression. General objective : To validate the two previously proposed staging system and to test the interest of considering Neurofilament biomarkers in these systems. Specific objectives: 1) To validate the two classification systems in an independent cohort of patients with ALS followed-up in the ALS expert center of Limoges (France) 2) To assess the interest of Nf biomarkers to predict neurological decline

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
16mo left

Started Dec 2022

Longer than P75 for all trials

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress73%
Dec 2022Dec 2027

First Submitted

Initial submission to the registry

April 21, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 26, 2021

Completed
1.6 years until next milestone

Study Start

First participant enrolled

December 2, 2022

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 14, 2024

Completed
3.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 2, 2027

Expected
Last Updated

June 26, 2026

Status Verified

June 1, 2026

Enrollment Period

1.4 years

First QC Date

April 21, 2021

Last Update Submit

June 25, 2026

Conditions

Keywords

Amyotrophic Lateral SclerosisALSStagingBiomarker

Outcome Measures

Primary Outcomes (1)

  • To validate the two previously proposed staging system and to develop an accurate staging system in ALS considering Neurofilament (Nf) biomarkers.

    To validate the two previously proposed staging system and to develop an accurate staging system in ALS considering Neurofilament (Nf) biomarkers

    2 years

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

patients with ALS, followed-up in the ALS expert center of Limoges university Hospital (France).

You may qualify if:

  • ALS cases recruited for retrospectively (between) 2007 to 2016 for the retrospective cohort
  • ALS cases recruited for prospectively by the ALS expert center of Limoges for one year.

You may not qualify if:

  • Previous neurosurgical operations
  • A recent history of neurotrauma
  • Peripheral neuropathies
  • ALS/frontotemporal dementia (ALS/FTD)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Limoges University Hospital

Limoges, 87042, France

Location

Tours University Hospital

Tours, 37044, France

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Blood samples will be collected from ALS incident cases. Neurofilaments levels will be determined in the plasma using ELISA Method

MeSH Terms

Conditions

Amyotrophic Lateral Sclerosis

Condition Hierarchy (Ancestors)

Spinal Cord DiseasesCentral Nervous System DiseasesNervous System DiseasesMotor Neuron DiseaseNeurodegenerative DiseasesTDP-43 ProteinopathiesNeuromuscular DiseasesProteostasis DeficienciesMetabolic DiseasesNutritional and Metabolic Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 21, 2021

First Posted

April 26, 2021

Study Start

December 2, 2022

Primary Completion

April 14, 2024

Study Completion (Estimated)

December 2, 2027

Last Updated

June 26, 2026

Record last verified: 2026-06

Locations