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An Observational Study Utilising Data From the US Tysabri TOUCH Programme and Select EU MS Registries to Estimate the Risk of Progressive Multifocal Leukoencephalopathy (PML) and Other Serious Opportunistic Infections Among Patients Who Were Exposed to an MS Disease Modifying Treatment Prior to Treatment With Tysabri
Conditions
Interventions
Tysabri
Locations
1
United States
Research Site
Cambridge, Massachusetts, United States
Start Date
June 1, 2017
Primary Completion Date
December 31, 2023
Completion Date
December 31, 2023
Last Updated
March 19, 2024
NCT04453917
NCT01132053
NCT04091932
NCT00746941
Lead Sponsor
Biogen
Data Source & Attribution
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