Safety and Efficacy Study of Daclizumab High Yield Process (DAC HYP) to Treat Relapsing-Remitting Multiple Sclerosis
Safety and Efficacy Study of Daclizumab High Yield Process (DAC HYP) to Treat Relapsing-Remitting Multiple Sclerosis
The primary objective of this study is to determine whether DAC HYP, when compared to
 placebo, is effective in reducing the rate of relapses between baseline and Week 52. The
 secondary objectives are to determine whether DAC HYP is effective in reducing the number of
 new gadolinium (Gd)-enhancing lesions, reducing the number of new or newly-enlarging T2
 hyperintense lesions, reducing the proportion of participants with relapses, and improving
 quality of life.
Key Inclusion Criteria:

 -  Multiple Sclerosis (MS) subjects who have a confirmed diagnosis of relapsing-remitting
 MS according to McDonald criteria #1-4 and a baseline Expanded Disability Status Scale
 (EDSS) between 0.0 and 5.0, inclusive, who meet either of the following 2 criteria:

 -  Have experienced at least 1 relapse within the 12 months prior to randomization,
 with a cranial magnetic resonance imaging (MRI) demonstrating lesion(s)
 consistent with MS , OR

 -  Show evidence of gadolinium-enhancing lesions of the brain on an MRI performed
 within the 6 weeks prior to randomization.

 Key Exclusion Criteria:

 -  Diagnosis of primary progressive, secondary progressive, or progressive relapsing MS

 -  History of malignancy

 -  History of severe allergic or anaphylactic reactions or known drug hypersensitivity

 -  History of abnormal laboratory results based on investigator judgment

 -  History of human immunodeficiency virus (HIV) or other immunodeficient conditions

 -  History of drug or alcohol abuse within the 2 years prior to randomization

 -  An MS relapse that has occurred within the 50 days prior to randomization AND/OR the
 subject has not stabilized from a previous relapse prior to randomization

 -  Positive screening for active infection with Hepatitis B virus or Hepatitis C virus

 -  Varicella or herpes zoster virus infection or any severe viral infection within 6
 weeks before Screening

 -  Exposure to varicella zoster virus within 21 days before Screening.

 -  Abnormal blood tests at Screening: Hemoglobin ≤9.0 g/dL, Platelets ≤100 × 10^9/L,
 Lymphocytes ≤1.0 × 10^9/L, Neutrophils ≤1.5 × 10^9/L, alanine aminotransferase/serum
 glutamate pyruvate transaminase (ALT/SGPT), aspartate aminotransferase/serum glutamic
 oxaloacetic transaminase (AST/SGOT), or gamma-glutamyl-transferase >2 times the upper
 limit of normal (ULN) and serum creatinine >ULN.

 NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.