JC-virus (JCV) Epidemiology in Multiple Sclerosis (MS)

Epidemiology of Anti-JCV Antibody Prevalence in Multiple Sclerosis Patients

The objective of the study is to estimate the prevalence of anti-JCV antibodies in multiple sclerosis (MS) participants.

This is a cross-sectional, multi-center, multi-national, epidemiological study to estimate the prevalence of anti-JCV antibody in MS participants. This study will provide an estimate of the prevalence of anti-JCV antibody in the MS population and will investigate inter-country differences.

Key Inclusion Criteria:

• All candidates for this study must have the ability to understand the purpose of the study and provide signed and dated informed consent.
• All patients with a diagnosis of Multiple Sclerosis (MS) of any type, irrespective of their treatment, are eligible to participate once.

Key Exclusion Criteria:

• None

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.