A Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Ocrelizumab in Participants With Relapsing Multiple Sclerosis and Primary Progressive Multiple Sclerosis
A Multicenter, Open-label, Single-arm Study to Evaluate the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Ocrelizumab in Chinese Patients With Relapsing Multiple Sclerosis and Primary Progressive Multiple Sclerosis
1 other identifier
interventional
60
1 country
17
Brief Summary
The main purpose of this study is to evaluate the efficacy of ocrelizumab in participants with relapsing multiple sclerosis (RMS) and to characterize the ocrelizumab pharmacodynamic (PD) profile in Chinese participants with primary progressive multiple sclerosis (PPMS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Jul 2025
17 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
Study Start
First participant enrolled
July 4, 2025
CompletedFirst Submitted
Initial submission to the registry
March 16, 2026
CompletedFirst Posted
Study publicly available on registry
March 19, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 12, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 23, 2027
May 27, 2026
May 1, 2026
1.7 years
March 16, 2026
May 22, 2026
Conditions
Outcome Measures
Primary Outcomes (3)
RMS Cohort: Annualized Protocol-defined Relapse Rate
Up to approximately 1.6 years
PPMS Cohort: B-cell Levels in Blood
Up to Week 48
PPMS Cohort: Percentage of Participants Achieving Cluster of Differentiation 19 (CD19+) B-cell Levels of <10 Cells/Microliter (μL) at Week 48
At Week 48
Secondary Outcomes (18)
RMS Cohort: Percentage of Participants Who Have No Evidence of Disease Activity (NEDA3) During a 48-week Period
Up to Week 48
RMS Cohort: Percentage of Relapse-free Participants by Week 48
Up to Week 48
RMS Cohort: Percentage of Participants Who Have NEDA3 During a 24-week Period
Up to Week 24
RMS Cohort: Total Number of T1 Gadolinium (Gd)-enhancing Lesions as Detected by Brain Magnetic Resonance Imaging (MRI)
Up to Week 48
RMS Cohort: Total Number of New or Enlarging T2 Hyperintense Lesions as Detected by Brain MRI
Up to Week 48
- +13 more secondary outcomes
Study Arms (2)
RMS Cohort
EXPERIMENTALParticipants with RMS will receive ocrelizumab, 300 milligrams (mg), intravenous (IV) infusions on Days 1 and 15 of Cycle 1 and thereafter as a single infusion of 600 mg, IV, for all subsequent cycles every 24 weeks (Q24W) (1 Cycle=24 weeks).
PPMS Cohort
EXPERIMENTALParticipants with PPMS will receive ocrelizumab, 300 mg, IV infusions on Days 1 and 15 of Cycle 1 and thereafter as a single infusion of 600 mg, IV, at Week 24 (1 Cycle=24 weeks).
Interventions
Ocrelizumab will be administered as per the schedule specified in the respective arms.
Eligibility Criteria
You may qualify if:
- Diagnosis of RMS/PPMS in accordance with the revised 2017 McDonald Criteria
- EDSS score from 0-5.5 (RMS) or 3.0-6.5 (PPMS), inclusive, at screening and baseline
- Documented MRI of brain with abnormalities consistent with MS before screening
You may not qualify if:
- Diagnosis of PPMS or non-active secondary progressive multiple sclerosis (SPMS) (only for RMS cohort)
- History of relapsing remitting multiple sclerosis (RRMS) or SPMS at screening (only for PPMS cohort)
- Disease duration of more than 10 years in participants with an EDSS ≤ 2.0 at screening (only for RMS cohort)
- History of confirmed or suspected progressive multifocal leukoencephalopathy (PML)
- Inability to complete an MRI scan or contraindication to Gd administration
- Contraindications to mandatory pre-medications (i.e., corticosteroids and antihistamines)
- Known presence of other neurologic disorders if they could interfere with the diagnosis of MS or assessments of efficacy and/or safety during the study
- Any concomitant disease that may require chronic treatment with systemic corticosteroids or immunosuppressants during the course of the study
- Known history of human immunodeficiency virus (HIV) infection
- Lack of peripheral venous access
- Previous treatment with B-cell targeted therapies (i.e., rituximab, ocrelizumab, atacicept, belimumab, or ofatumumab), unless the last infusion was at least 6 months prior to screening
- Positive screening tests for hepatitis B virus (HBV) and/or hepatitis C virus (HCV)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (17)
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, 330209, China
Peking Union Medical College Hospital
Beijing, 100032, China
Peking University First Hospital
Beijing, 100034, China
Beijing Hospital of Ministry of Health
Beijing, 100730, China
Xiangya Hospital Central South University
Changsha, 410008, China
West China Hospital of Sichuan University
Chengdu, 610041, China
The First Affiliated Hospital, Chongqing Medical University
Chongqing, 400016, China
The First Affiliated Hospital of Sun Yat-sen University
Guangzhou, 510080, China
The Third Affiliated Hospital of Sun Yat-Sen University
Guangzhou, 510630, China
The First Affiliated Hospital of College of Medicine, Zhejiang University
Hangzhou, 310003, China
Inner Mongolia Autonomous Region People's Hospital
Hohhot, 010011, China
Lanzhou University Second Hospital
Lanzhou, 730030, China
The First Hospital of China Medical University
Shenyang, DUMMY_VALUE, China
The Second Hospital of Hebei Medical University
Shijiazhuang, 050000, China
1st Affiliated Hospital of Shanxi Medical University
Taiyuan, 030000, China
Xinjiang People Hospital
Ürümqi, 830000, China
Tongji Hospital Tongji Medical College Huazhong University of Science and Technology
Wuhan, 430030, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Clinical Trials
Hoffmann-La Roche
Central Study Contacts
Reference Study ID Number: YN44938 https://forpatients.roche.com/
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 16, 2026
First Posted
March 19, 2026
Study Start
July 4, 2025
Primary Completion (Estimated)
March 12, 2027
Study Completion (Estimated)
April 23, 2027
Last Updated
May 27, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will share
For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data\_sharing