Impact of daclizumab versus interferon beta-1a on patient-reported outcomes in relapsing-remitting multiple sclerosis

Mult Scler Relat Disord. 2017 Jan;11:18-24. doi: 10.1016/j.msard.2016.11.005. Epub 2016 Nov 13.


Background: Patient-reported outcomes (PROs) provide information on treatment effects from the patient's perspective that complement outcomes on clinical measures. In DECIDE, daclizumab demonstrated superior efficacy in reducing relapses, 24-week confirmed disability progression, and brain lesions (assessed by magnetic resonance imaging [MRI]) versus intramuscular interferon beta-1a in relapsing-remitting multiple sclerosis.

Objective: To examine the impact of daclizumab versus interferon beta-1a on PROs in DECIDE.

Methods: DECIDE was a randomized, double-blind, active-controlled, phase 3 study comparing daclizumab 150mg subcutaneous every 4 weeks with interferon beta-1a 30mcg intramuscular once weekly. The 29-item Multiple Sclerosis Impact Scale (MSIS-29) and EuroQoL 5-Dimensions (EQ-5D) were assessed at baseline and every 24 weeks. Mean changes from baseline were analyzed using analysis of covariance models. Individual items for the MSIS-29 physical (PHYS) and psychological (PSYCH) subscales were analyzed post hoc.

Results: Daclizumab treatment resulted in greater mean improvements relative to baseline in MSIS-29 PHYS and PSYCH scores starting at week 24 that persisted over 96 weeks. Mean improvements from baseline in MSIS-29 PHYS and PSYCH scores were significantly greater for daclizumab versus intramuscular interferon beta-1a at week 96. Daclizumab-treated patients showed steady improvements in EQ-5D health utility index and EQ-5D visual analog scale scores over the study period, with significantly greater improvements versus intramuscular interferon beta-1a at week 96 (p=0.0048 and p=0.0006, respectively).

Conclusions: Improvements in patient-reported physical and psychological functioning and general health status with daclizumab compared with intramuscular interferon beta-1a are consistent with outcomes on clinical and brain MRI lesion measures in DECIDE (NCT01064401).

Keywords: Daclizumab; Multiple sclerosis; Patient-reported outcomes; Relapsing-remitting.

Publication types

  • Clinical Trial, Phase III
  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Adult
  • Antibodies, Monoclonal, Humanized / therapeutic use*
  • Daclizumab
  • Double-Blind Method
  • Humans
  • Immunoglobulin G / therapeutic use*
  • Immunologic Factors / therapeutic use*
  • Interferon beta-1a / therapeutic use*
  • Middle Aged
  • Multiple Sclerosis, Relapsing-Remitting / drug therapy*
  • Patient Reported Outcome Measures
  • Time Factors
  • Young Adult


  • Antibodies, Monoclonal, Humanized
  • Immunoglobulin G
  • Immunologic Factors
  • Daclizumab
  • Interferon beta-1a

Associated data