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CYB704

Phase 3

Relapsing Multiple Sclerosis | Monoclonal antibody | Neurology |Novartis AG|Last Updated: May 29, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment183

FDA Designations

No designations recorded

Clinical trial landscape

CYB704 · 1 trial · 1 indication

Phase 3 1
NCT06847724Comparative PK, PD, Efficacy, and Safety Assessment of the Proposed Ocrelizumab Biosimilar CYB704 and Ocrevus in Participants With Relapsing Multiple SclerosisRelapsing Multiple Sclerosis
ACTIVE NOT_RECRUITING183 Analytics
PHASE3ACTIVE NOT_RECRUITING
Comparative PK, PD, Efficacy, and Safety Assessment of the Proposed Ocrelizumab Biosimilar CYB704 and Ocrevus in Participants With Relapsing Multiple Sclerosis
Relapsing Multiple SclerosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Area under the concentration time curve
Week 1 - 3, week 3 - 25

Demonstrate similar PK between Ocrevus and CYB704

Secondary Endpoints

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
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
CYB704EXPERIMENTALDrug: 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-EUACTIVE_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

NameTypeDescription
CYB704BIOLOGICALIntravenous Infusion
Ocrevus-EUBIOLOGICALIntravenous Infusion
Ocrevus-USBIOLOGICALIntravenous Infusion
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites41

Inclusion Criteria: * 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 s...

Countries:United StatesBosnia and HerzegovinaBulgariaCroatiaGeorgiaNorth MacedoniaPolandSerbia
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Frequently asked questions about CYB704

What is CYB704 used for in relapsing multiple sclerosis?

CYB704 is an investigational monoclonal antibody being studied for the treatment of relapsing multiple sclerosis. It is currently in Phase 3 clinical development as a proposed biosimilar to Ocrevus. The drug is being evaluated for its efficacy, pharmacokinetics, pharmacodynamics, and safety in patients with this condition.

What does CYB704 target?

CYB704 is a monoclonal antibody designed as a proposed biosimilar to Ocrevus. As a biosimilar, it targets the same molecular target as Ocrevus, which is the CD20 antigen on B-cells. By binding to CD20, it is intended to deplete B-cells, a mechanism relevant to the treatment of relapsing multiple sclerosis.

Who makes CYB704?

CYB704 is being developed by Novartis AG, a multinational pharmaceutical company traded on the New York Stock Exchange under the ticker symbol NVS. The company is conducting a Phase 3 clinical trial to assess the proposed biosimilar in participants with relapsing multiple sclerosis.

What phase is CYB704 in?

CYB704 is in Phase 3 clinical development. It is an investigational drug, not yet approved by regulatory authorities. The ongoing Phase 3 trial is actively not recruiting participants and is designed to compare CYB704 with Ocrevus in patients with relapsing multiple sclerosis.

What clinical trials is CYB704 in?

CYB704 is being studied in one Phase 3 clinical trial with the identifier NCT06847724. This randomized, double-blind, active-controlled study is assessing the comparative pharmacokinetics, pharmacodynamics, efficacy, and safety of CYB704 versus Ocrevus in 183 participants with relapsing multiple sclerosis across multiple countries.

Is CYB704 the same as Ocrevus?

CYB704 is not the same as Ocrevus, but it is being developed as a proposed biosimilar to Ocrevus. A biosimilar is a biological product that is highly similar to an already approved reference product, with no clinically meaningful differences in safety or efficacy. CYB704 is currently being compared to Ocrevus in a Phase 3 trial.