Predicting clinical progression in multiple sclerosis after 6 and 12 years

Area of Science:

• Neurology
• Neuroimaging
• Clinical Prediction

Background:

• Multiple sclerosis (MS) is a chronic neurological disease characterized by progressive disability and cognitive impairment.
• Predicting the long-term course of MS is crucial for patient management and therapeutic development.

Purpose of the Study:

• To identify early clinical and imaging predictors of disability and cognitive function in multiple sclerosis (MS) patients.
• To assess the predictive value of baseline and 2-year measures for outcomes at 6 and 12 years.

Main Methods:

• A cohort of 115 MS patients was followed for up to 12 years.
• Disability was assessed using the Expanded Disability Status Scale (EDSS); cognition was evaluated via neuropsychological testing.
• Predictors included EDSS scores, brain/lesion volumes, and demographic factors.

Main Results:

• Early EDSS scores and whole-brain volume changes predicted 6-year disability (R²=0.56).
• Primary progressive MS, lower education, male sex, and early brain atrophy predicted 6-year cognition (R²=0.26).
• Higher T1-hypointense lesion volumes predicted 12-year disability and cognition.

Conclusions:

• Early neurodegeneration and progressive onset are associated with increased disability and cognitive decline in MS.
• Male sex and lower education specifically impact cognitive dysfunction, suggesting a need for advanced imaging in prediction.
• Early identification of at-risk patients can guide personalized MS management strategies.