Study of Tysabri (Natalizumab) in Patients Who Failed Anti-TNF-α Therapy

This study has been withdrawn prior to enrollment.
(Study sponsor decided to withdraw the current study prior to enrollment of first participant.)
Sponsor:
Collaborator:
Biogen Idec
Information provided by:
Elan Pharmaceuticals
ClinicalTrials.gov Identifier:
NCT00801125
First received: December 1, 2008
Last updated: January 23, 2009
Last verified: January 2009
No Study Results Posted on ClinicalTrials.gov for this Study
Study was withdrawn before participants were enrolled.
  Study Status: This study has been withdrawn prior to enrollment.
  Estimated Study Completion Date: No date given
  Estimated Primary Completion Date: May 2010 (Final data collection date for primary outcome measure)