Tysabri Approval History
- FDA approved: Yes (First approved November 23rd, 2004)
- Brand name: Tysabri
- Generic name: natalizumab
- Previous name: Antegren
- Company: Biogen Idec / Elan Corporation, plc
- Treatment for: Multiple Sclerosis, Crohn's Disease, Maintenance
Tysabri (natalizumab) is a recombinant humanized IgG4κ monoclonal antibody for the treatment of multiple sclerosis and Crohn's disease.
Development History and FDA Approval Process for Tysabri
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