natalizumab
Humanized monoclonal antibody targeting alpha4-beta1 integrin.
References
Ransohoff RM. Natalizumab for multiple sclerosis. N Engl J Med. 2007 Jun 21;356(25):2622-9. PMID: 17582072
Steinman L. Blocking adhesion molecules as therapy for multiple sclerosis: natalizumab. Nat Rev Drug Discov. 2005 Jun;4(6):510-8. PMID: 15931259