IFNB Multiple Sclerosis Study Group trial

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This was a multicentre, blinded, randomised, placebo-controlled trial of interferon beta-1b in patients with mild relapsing-remitting multiple sclerosis.

372 patients were recruited:

  • mean age 35.5 years
  • ambulatory
  • mild disability (EDSS scores 0 - 5.5)
  • short duration of definite MS (mean duration 4.4 years)
  • duration of follow-up 3.5 to 5 years

The treatment arms consisted of:

  • low dose - 1.6 MIU subcutaneously alternate days
  • high dose - 8 MIU subcutaneously alternate days

The end-points were:

  • relapse frequency
  • disease burden on T2-weighted MRI scans of the brain
  • confirmed disease progression

Reference:

  • 1) The IFNB multiple sclerosis study group. (1993) Interferon beta-1b is effective in relapsing-remitting multiple sclerosis-I: clinical results of a multicentre, randomized, double-blind, placebo-controlled trial. Neurology, 43, 655-61
  • 2) The IFNB multiple sclerosis study group and the University of British Columbia MS/MRI analysis group. (1995) Interferon beta-1b in the treatment of multiple sclerosis: final outcome of the randomized controlled trial. Neurology 45, 1277-85

Last reviewed 01/2018

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