A Study to Evaluate Rebif® New Formulation (Interferon-beta-1a) in Relapsing Remitting Multiple Sclerosis (IMPROVE)
General Note: throughout this record, "Rebif® New Formulation" is used for historical and consistency purposes.
Primary: To evaluate the efficacy of Rebif® New Formulation (Interferon-beta-1a [IFN-beta-1a], RNF), compared to placebo, in subjects with Relapsing Remitting Multiple Sclerosis and active disease by means of Magnetic Resonance Imaging (MRI) at the end of 16 weeks of treatment Secondary: To evaluate the efficacy of RNF by comparing the mean number of combined unique (CU) lesions per scan per subject between the initial 16 weeks of placebo treatment and 24 weeks of RNF treatment in the same subjects, originally randomized to placebo.
Primary Endpoints: The primary endpoint is the difference between the number of CU active MRI lesions at Week 16 in the RNF group (Group 1) versus the placebo group (Group 2).
Secondary Endpoints: The secondary endpoint is the difference in the mean number of CU active MRI lesions per scan per subject over the following treatment periods: Study Day 1 - Week 16 versus Weeks 17 - 40 for the subjects randomized to Group 2.
|Multiple Sclerosis, Relapsing-Remitting||Drug: Rebif® New Formulation (IFN-beta-1a, RNF) Drug: Placebo||Phase 3|
|Study Design:||Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
|Official Title:||A Two-arm, Randomized, Double-blind, Control Group-compared, Multicenter, Phase IIIb Study With Monthly MRI and Biomarker Assessments to Evaluate the Efficacy, Safety, and Tolerability of Rebif® New Formulation (IFN Beta-1a) in Subjects With Relapsing Remitting Multiple Sclerosis|
- Number of Combined Unique (CU) Active Magnetic Resonance Imaging (MRI) Lesions at Week 16 [ Time Frame: 16 Weeks ]CU active lesions were defined as a unique newly active or persistently active lesion on the protocol density/time constant 2 (PD/T2) scan or the gadolinium (Gd-) enhanced time constant 1 (T1) scan (with a method to avoid double counting).
- Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: Baseline up to Week 40 ]An adverse event (AE) was defined as any new untoward medical occurrences/worsening of pre-existing medical condition without regard to possibility of causal relationship. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect. AEs were categorized based upon the treatment period during which they occurred, that is, double-blind period (up to Week 16) and rater-blind period (Week 17 up to Week 40).
- Mean Number of CU Lesions Per Scan Between the Initial 16 Weeks of Placebo Treatment and 24 Weeks of RNF Treatment in the Same Participants, Originally Randomized to Placebo. [ Time Frame: Day 1 up to Week 16 and Week 17 up to Week 40 ]CU active lesions were defined as a unique newly active or persistently active lesion on the PD/T2 scan or the gadolinium enhanced T1 scan (with a method to avoid double counting). Only "Placebo Followed by RNF" arm was evaluable for this outcome measure.
- Number of CU Active MRI Lesions [ Time Frame: Up to Week 40 ]CU active lesions were defined as a unique newly active or persistently active lesion on the PD/T2 scan or the gadolinium enhanced T1 scan (with a method to avoid double counting).
|Study Start Date:||December 2006|
|Study Completion Date:||February 2009|
|Primary Completion Date:||November 2008 (Final data collection date for primary outcome measure)|
|Experimental: Rebif® New Formulation (IFN-beta-1a, RNF)||
Drug: Rebif® New Formulation (IFN-beta-1a, RNF)
RNF will be administered at a dose of 44 mcg subcutaneously three times a week for 40 weeks.
Other Name: IFN-beta-1a
|Placebo Comparator: Placebo/RNF||
Matching placebo will be administered subcutaneously three times a week for 16 weeks.Drug: Rebif® New Formulation (IFN-beta-1a, RNF)
RNF will be administered at a dose of 44 mcg subcutaneously three times a week from Week 17 to Week 40.
Other Name: IFN-beta-1a
Please refer to this study by its ClinicalTrials.gov identifier: NCT00441103
|Study Director:||Bettina Stubinski, MD||Merck Serono SA - Geneva, an affiliate of Merck KGaA Darmstadt, Germany|