Comparative PK, PD, Efficacy, and Safety Assessment of the Proposed Ocrelizumab Biosimilar CYB704 and Ocrevus in Participants With Relapsing Multiple Sclerosis
A Randomized, Double-blind, Parallel-group Study to Compare the Pharmacokinetics, Efficacy, Pharmacodynamics, Safety, and Immunogenicity of CYB704 (Proposed Ocrelizumab Biosimilar) and Ocrevus® in Participants With Relapsing Multiple Sclerosis (RMS) [STRIVE-MS].
1 other identifier
interventional
175
8 countries
41
Brief Summary
The goal of this clinical trial is to learn if drug CYB704, a proposed biosimilar to Ocrevus, works to treat multiple sclerosis in the same way as the reference product Ocrevus(R). The main questions it aims to answer are:
- Is CYB704 distributed in the body in the same way as the reference product (demonstration of pharmacokinetic (PK) similarity)?
- Does have CYB704 the same treatment effect and side effects as the reference product? Researchers will compare CYB704 to a Ocrevus (Ocrevus-US and Ocrevus-EU). Participants will:
- Take drug CYB704 or Ocrevus (Ocrevus-US and Ocrevus-EU)
- Visit the clinic for at least 15 treatment visits, checkups and tests
- Will undergo regular magnetic resonance imaging (MRI) examinations
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Jun 2025
Typical duration for phase_3
41 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 19, 2025
CompletedFirst Posted
Study publicly available on registry
February 26, 2025
CompletedStudy Start
First participant enrolled
June 10, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 14, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 14, 2029
April 27, 2026
April 1, 2026
1.3 years
February 19, 2025
April 24, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Area under the concentration time curve
Demonstrate similar PK between Ocrevus and CYB704
Week 1 - 3, week 3 - 25
Secondary Outcomes (10)
Area under the plasma concentration versus time curve (AUC)
Week 1 - 25
Peak Plasma Concentration (Cmax)
Day 1 and Day 15
CD19+ B-cell count
Up to 48 weeks
Number of new T1 GdE lesions on brain MRI scans
Up to 48 weeks
Number of T1 GdE lesions
Up to 48 weeks
- +5 more secondary outcomes
Study Arms (2)
CYB704
EXPERIMENTALDrug: CYB704 (Ocrelizumab) Patients will be dosed 300 mg on day 1 and day 15. Subsequent dose of 600 mg will be administered 24 weeks after the initial dose.
Ocrevus-US/Ocrevus-EU
ACTIVE COMPARATORDrug: Ocrevus-US/Ocrevus-EU Patients will be dosed 300 mg on day 1 and day 15 with Ocrevus-US. Subsequent dose of 600 mg Ocrevus-EU will be administered 24 weeks after the initial dose.
Interventions
Eligibility Criteria
You may qualify if:
- Diagnosis of RMS (relapsing remitting multiple sclerosis (MS) or active secondary progressive MS)
- Evidence of recent disease activity as defined in study protocol
- Expanded Disability Status scale score of 0 to 5.5 (inclusive) at screening
- Neurological stability (no new signs or symptoms referable to Central Nervous System (CNS) within 30 days before both screening and first study treatment
You may not qualify if:
- Diagnosis of primary progressive MS
- Disease duration of more than 10 years in participants with an Expanded Disability Status Scale (EDSS) ≤2.0 at screening
- Inability to complete an MRI or contraindication to gadolinium administration
- History of allergic or anaphylactic reactions to ocrelizumab or one of the premedications (methylprednisolone or equivalent corticosteroid, antihistamine, antipyretic)
- Pregnant participants
- Current or history of medical conditions as outlined in the study protocol
- Prohibited medications (current and history) as outlined in the study protocol
- Abnormal laboratory blood values as outlined in the study protocol
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sandozlead
Study Sites (41)
Sandoz Investigational Site
Maitland, Florida, 32751, United States
Sandoz Investigational Site
Ormond Beach, Florida, 32174, United States
Sandoz Investigational Site
Banja Luka, Bosnia and Herzegovina
Sandoz Investigational Site
Bihać, Bosnia and Herzegovina
Sandoz Investigational Site 2
Sarajevo, Bosnia and Herzegovina
Sandoz Investigational Site
Sarajevo, Bosnia and Herzegovina
Sandoz Investigational Site
Pleven, Bulgaria
Sandoz Investigational Site 2
Plovdiv, Bulgaria
Sandoz Investigational Site
Plovdiv, Bulgaria
Sandoz Investigational Site 2
Sofia, Bulgaria
Sandoz Investigational Site 3
Sofia, Bulgaria
Sandoz Investigational Site 4
Sofia, Bulgaria
Sandoz Investigational Site 5
Sofia, Bulgaria
Sandoz Investigational Site
Sofia, Bulgaria
Sandoz Investigational Site
Varaždin, Croatia
Sandoz Investigational Site
Zagreb, Croatia
Sandoz Investigational Site
Rustavi, Georgia
Sandoz Investigational Site 2
Tbilisi, Georgia
Sandoz Investigational Site 3
Tbilisi, Georgia
Sandoz Investigational Site 4
Tbilisi, Georgia
Sandoz Investigational Site 5
Tbilisi, Georgia
Sandoz Investigational Site 6
Tbilisi, Georgia
Sandoz Investigational Site 7
Tbilisi, Georgia
Sandoz Investigational Site 8
Tbilisi, Georgia
Sandoz Investigational Site
Tbilisi, Georgia
Sandoz Investigational Site
Shtip, North Macedonia
Sandoz Investigational Site
Skopje, North Macedonia
Sandoz Investigational Site
Bydgoszcz, Poland
Sandoz Investigational Site 2
Katowice, Poland
Sandoz Investigational Site
Katowice, Poland
Sandoz Investigational Site
Lodz, Poland
Sandoz Investigational Site 2
Lublin, Poland
Sandoz Investigational Site
Lublin, Poland
Sandoz Investigational Site
Nowa Sól, Poland
Sandoz Investigational Site 2
Poznan, Poland
Sandoz Investigational Site
Poznan, Poland
Sandoz Investigational Site
Szczecin, Poland
Sandoz Investigational Site
Warsaw, Poland
Sandoz Investigational Site
Zabrze, Poland
Sandoz Investigational Site
Belgrade, Serbia
Sandoz Investigational Site
Niš, Serbia
MeSH Terms
Interventions
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 19, 2025
First Posted
February 26, 2025
Study Start
June 10, 2025
Primary Completion (Estimated)
October 14, 2026
Study Completion (Estimated)
October 14, 2029
Last Updated
April 27, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share