REbif FLEXible Dosing in Early Multiple Sclerosis (MS)

Summary

The study is a 24 months randomized, double-blind, Placebo-controlled, multi-center clinical trial with an optional 12 months open label extension. The primary objective of the study is to evaluate the effect of fetal bovine serum \[FBS\]-free/human serum albumin \[HSA\]-free formulation of Interferon \[IFN\] beta-1a (RNF) 44 microgram (three times weekly and once weekly) versus placebo on the time to conversion to McDonald multiple sclerosis (MS) criteria (2005) in subjects with a first clinical demyelinating event at high risk of converting to MS. The main secondary objective of study is to evaluate the effect of RNF 44 microgram (three times weekly and once weekly) versus placebo on the "Time to conversion to clinically definite MS (CDMS)" in subjects with a first clinical demyelinating event at high risk of converting to MS. At the end of 24 month double-blind core REFLEX trial, subjects who will not convert to CDMS and decide to receive open-label (OL) treatment will be enrolled into an open-label, 12 month extension period to evaluate the effect of RNF 44 mcg three times weekly treatment on the time to conversion to McDonald MS and time to conversion to CDMS.

Timeline

Start

2006-11

Primary completion

2010-08

Completion

2011-07

Publications

• Kuhle J, Leppert D, Comi G, de Stefano N, Kappos L, Freedman MS, Seitzinger A, Roy S. Serum neurofilament light chain correlations in patients with a first clinical demyelinating event in the REFLEX study: a post hoc analysis. Ther Adv Neurol Disord. 2024 Mar 29;17:17562864241239101. doi: 10.1177/17562864241239101. eCollection 2024.
• Battaglini M, Vrenken H, Tappa Brocci R, Gentile G, Luchetti L, Versteeg A, Freedman MS, Uitdehaag BMJ, Kappos L, Comi G, Seitzinger A, Jack D, Sormani MP, Barkhof F, De Stefano N. Evolution from a first clinical demyelinating event to multiple sclerosis in the REFLEX trial: Regional susceptibility in the conversion to multiple sclerosis at disease onset and its amenability to subcutaneous interferon beta-1a. Eur J Neurol. 2022 Jul;29(7):2024-2035. doi: 10.1111/ene.15314. Epub 2022 Apr 4.
• Freedman MS, De Stefano N, Barkhof F, Polman CH, Comi G, Uitdehaag BM, Casset-Semanaz F, Hennessy B, Lehr L, Stubinski B, Jack DL, Kappos L. Patient subgroup analyses of the treatment effect of subcutaneous interferon beta-1a on development of multiple sclerosis in the randomized controlled REFLEX study. J Neurol. 2014 Mar;261(3):490-9. doi: 10.1007/s00415-013-7222-6. Epub 2014 Jan 12.
• De Stefano N, Comi G, Kappos L, Freedman MS, Polman CH, Uitdehaag BM, Hennessy B, Casset-Semanaz F, Lehr L, Stubinski B, Jack DL, Barkhof F. Efficacy of subcutaneous interferon beta-1a on MRI outcomes in a randomised controlled trial of patients with clinically isolated syndromes. J Neurol Neurosurg Psychiatry. 2014 Jun;85(6):647-53. doi: 10.1136/jnnp-2013-306289. Epub 2013 Nov 29.
• Comi G, De Stefano N, Freedman MS, Barkhof F, Polman CH, Uitdehaag BM, Casset-Semanaz F, Hennessy B, Moraga MS, Rocak S, Stubinski B, Kappos L. Comparison of two dosing frequencies of subcutaneous interferon beta-1a in patients with a first clinical demyelinating event suggestive of multiple sclerosis (REFLEX): a phase 3 randomised controlled trial. Lancet Neurol. 2012 Jan;11(1):33-41. doi: 10.1016/S1474-4422(11)70262-9. Epub 2011 Dec 4.

Drugs

Indications