An Open-Label Immunogenicity and Pharmacokinetics Study of Daclizumab High Yield Process Prefilled Syringe in Relapsing Remitting Multiple Sclerosis (OBSERVE)
Relapsing-Remitting Multiple Sclerosis
About this trial
This is an interventional other trial for Relapsing-Remitting Multiple Sclerosis focused on measuring Pre-filled syringe, Pharmacokinetic, Daclizumab High Yield Process, immunogenicity
Eligibility Criteria
Key Inclusion Criteria:
- Must have a confirmed diagnosis of RRMS according to McDonald criteria and previous cranial magnetic resonance imaging demonstrating lesion(s) consistent with MS
- Must have a baseline Expanded Disability Status Scale (EDSS) between 0.0 and 5.0, inclusive
- Must have had 1 or more clinical relapses within the previous 2 years
- Women of child bearing potential must be willing to practice effective contraception during the study and 4 months after the last dose
Key Exclusion Criteria:
- Other chronic disease of the immune system, malignancies, acute urologic, pulmonary, gastrointestinal disease
- Female subjects who are currently pregnant or breastfeeding
Key Inclusion criteria for 3-Year Treatment Extension:
To be eligible for participation in the 3-year treatment extension, participants must meet the following eligibility criteria at the time of reinitiation of DAC HYP:
- Must have been compliant with the 205MS302 (NCT01462318) protocol during the initial 24-week treatment period and the 20-week washout period in the opinion of the Investigator
- Must resume DAC HYP treatment ≤12 weeks after completion of the washout period (i.e., ≤12 weeks after their Week 44 visit).
- Participants who are currently receiving an approved IFN ß preparation must discontinue interferon (IFN) ß treatment at the time of reinitiation of DAC HYP dosing (no washout is required).
Key Inclusion criteria for the TP-DI Sub-study:
To be eligible for participation in the TP-DI Sub-Study, subjects must meet the following eligibility criteria at the Screening Visit at Week 40:
- Must have been compliant with the 205MS302 (NCT01462318) protocol during the initial 24-week treatment period and through Week 40 of the 20-week washout period in the opinion of the Investigator.
- Must agree to resume DAC HYP treatment ≤12 weeks after completion of the washout period (i.e., ≤12 weeks after their Week 44 visit).
- Must have normal liver function test results (total bilirubin ≤1.5 × upper limit of normal (ULN), alanine aminotransferase/aspartate aminotransferase ≤2 × ULN, and prothrombin time/partial thromboplastin time ≤1.2 × ULN).
- Must have normal renal function as estimated creatinine clearance >60 mL/min (Cockcroft-Gault formula).
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Sites / Locations
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Arms of the Study
Arm 1
Experimental
DAC HYP
DAC HYP 150 mg by a subcutaneous (SC) injection using the pre-filled syringe (PFS) every 4 weeks for 24 weeks followed by a 20-week washout period. After completion of the washout period, participants may resume monthly DAC HYP 150 mg using the PFS for up to 3 additional years. Participants in the TP-DI sub-study will receive probe-drug cocktail administration at Weeks 43 and 53. The probe-drug cocktail consists of oral midazolam 5 mg, caffeine 200 mg, S-warfarin 10 mg, vitamin K 10 mg, omeprazole 40 mg, and dextromethorphan 30 mg. The oral vitamin K is used to counteract warfarin's anticoagula nt effect prophylactically.