Characterization of New Phenotypes of Patients With Spinal Muscular Atrophy Treated With SMN Restoring Therapy

Exclusion Criteria

• •Other condition likely to interfere significantly with ASI assessment and clearly unrelated to the disease
• •Other associated neurological disease
• •Current pregnancy or breast-feeding (a pregnancy test will also be performed at inclusion).
• •Please note that patients with a specific contraindication to MRI (i.e. metallic foreign body, claustrophobia and other reasons determined by the investigators) will be allowed to participate in the study, but MRI will not be performed.