An Open-Label Immunogenicity and Pharmacokinetics Study of Daclizumab High Yield Process Prefilled Syringe in Relapsing Remitting Multiple Sclerosis (OBSERVE)
A Multicenter, Single-Arm, Open-Label Study to Evaluate the Immunogenicity and Pharmacokinetics of BIIB019, Daclizumab High Yield Process (DAC HYP), Prefilled Syringe Administered by Subcutaneous Injection in Subjects With Relapsing-Remitting Multiple Sclerosis
Sponsor: Biogen
A PHASE3 clinical study on Relapsing-Remitting Multiple Sclerosis, this trial is completed. The trial is conducted by Biogen and has accumulated 8 data snapshots since 2011. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.
Status Flow
Change History
8 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE3
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Sep 2024 — Sep 2025 [monthly]
Completed PHASE3
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Jan 2021 — Jul 2024 [monthly]
Completed PHASE3
-
Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
▶ Show 3 earlier versions
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May 2017 — Jun 2018 [monthly]
Completed PHASE3
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Feb 2017 — May 2017 [monthly]
Completed PHASE3
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Jan 2017 — Feb 2017 [monthly]
Completed PHASE3
First recorded
Nov 2011
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Biogen
For direct contact, visit the study record on ClinicalTrials.gov .