Brain scans reveal clues to uneven muscle weakness in progressive MS
NCT ID NCT04918225
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 46 people with progressive multiple sclerosis who have more weakness on one side of their body. Researchers used MRI scans to see how damage in the brain and spinal cord relates to muscle strength in each limb. The goal was to better understand what causes physical disability in progressive MS.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
-
46 people
The number who actually took part.
- Started
-
Nov 2021
- Finished
-
Feb 2026
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patient population will consist of progressive Multiple Sclerosis patients (both Primary Progressive Multiple Sclerosis and Secondary Progressive Multiple Sclerosis), a population for whom a better understanding of the causes of disability is an unmet need.
- Ages
-
18 to 60 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
1. \- Inclusion Criteria: 1.1/ Patients: * Aged between 18 and 60 years. * Primary Progressive Multiple Sclerosis or Secondary Progressive Multiple Sclerosis as defined by Mac Donald revised criteria in 2017. * Expanded Disability Status Scale lower or equal to 8.0, at inclusion. * asymmetric motor deficit. The motor deficit asymmetry will be defined by a difference of 3 or more at the American Society Injury. Association motor sub-score per limb between the right lower limb and the left lower limb. * No evidence of focal inflammatory activity for at least 3 years (no clinical relapse, no gadolinium enhancement on an Magnetic Resonance Imaging scan and no new T2 lesion) * Provided written informed consent according to the Institutional review board approval * Affiliated to the French healthcare system. 1.2 / Controls: * Aged between 18 and 60 years, sex and age matched with patients. * Provided written informed consent according to the Institutional review board approval * Affiliated to the French healthcare system. 2. \- Non-inclusion criteria: 2.1 /Patients: * cerebellar Expanded Disability Status Scale sub score higher than pyramidal Expanded Disability Status Scale sub score. * Relapse or corticosteroids in the 30 days preceding inclusion. * Other neurological diseases. * Lack of ability to understand the Institutional review board consent form. * Magnetic Resonance contraindications. * Pregnancy and breastfeeding. * Major persons subject to legal protection (legal safeguards, guardianship,curatorship), persons deprived of their liberty 2.2 / Controls: * Personal history of central nervous related disease * Familial history of Multiple Sclerosis. * Personal history of spinal cord injury. * Personal history of spondylotic myelopathy. * Magnetic Resonance Imaging contraindication. * Lack of ability to understand the Institutional review board form. * Major persons subject to legal protection (legal safeguards, guardianship, curatorship), persons deprived of their liberty * Pregnancy and breastfeeding.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Multiple sclerosis, primary progressive are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
CHU de Rennes - Hôpital Pontchaillou
Rennes, 35033, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can an Iron-Based dye reveal hidden inflammation in progressive MS?
- Blood filtering therapy shows promise for MS in early trial
- Mountain-Air breathing trick may boost MS muscle strength
- Allergy pill shows promise for MS repair in small trial
- Can a common supplement slow MS brain damage? new trial seeks answers.
- New hope for progressive MS: ocrelizumab trial targets disability