Last Update: Jan 26, 2026
A Randomized, Open-label, Parallel-group, Non-inferiority Study Comparing Efficacy, Safety, and Tolerability of Remibrutinib After Switching From Ocrelizumab in Participants Living With Relapsing Multiple Sclerosis, Followed by Open-label Treatment With Remibrutinib
ClinicalTrials.gov Identifier:
Novartis Reference Number:CLOU064C12306
All compounds are either investigational or being studied for (a) new use(s). Efficacy and safety have not been established. There is no guarantee that they will become commercially available for the use(s) under investigation.

Study Description

The purpose of this Phase 3b study is to assess the efficacy, safety and tolerability of remibrutinib after switching from ocrelizumab and compared to continuous ocrelizumab treatment, in patients living with relapsing multiple sclerosis (plwRMS). The study is a randomized, open-label, non-inferiority multi-center, Phase 3b study to provide efficacy, safety, and tolerability data for remibrutinib after switching from ocrelizumab and in comparison to continuous ocrelizumab in plwRMS.

This study consists of an initial Core Part (CP) (maximum duration per participant of up to 24 months), followed by an Extension Part (EP) (of up to 24 months duration) for eligible participants.

All participants completing the 24-month treatment of the Core Part of the study may be eligible to continue in the Extension Part, an open-label, single-arm, fixed-dose design in which participants are treated with remibrutinib for up to 24 months.

The study will be conducted in the USA among other countries globally.

Relapsing Multiple Sclerosis
Phase3
Recruiting
360
Jul 23, 2025
Dec 31, 2031
All
40 Years - 70 Years (Adult, Older Adult)

Interventions

Drug

Ocrelizumab

Ocrelizumab 600mg infusion or 920mg injection
Drug

Remibrutinib oral treatment

Remibrutinib tablet taken daily

Eligibility Criteria

Key Inclusion Criteria:

* Male or female aged 40 to 70 years (inclusive)
* Diagnosis of RMS according to the 2017 McDonald diagnostic criteria
* Treated with ocrelizumab according to routine clinical practice and at standard dose
* Neurologically stable within 30 days
* Suitable to be switched to remibrutinib based on physician judgement or patient preference

Key Exclusion Criteria:

* Diagnosis of primary progressive multiple sclerosis (PPMS) according to the revised 2017 McDonald criteria
* History of clinically significant Central Nervous System disease or neurological disorders
* History of confirmed Progressive Multifocal Leukoencephalopathy or neurological symptoms consistent
* Active clinically significant systemic bacterial, viral, parasitic or fungal infections
* Active, chronic disease of the immune system other than MS
* Severe cardiac disease or significant findings on the ECG
* Participant who is unable to undergo MRI scans
* History of life-threatening infusion or injection reaction related to ocrelizumab

Other inclusion and exclusion criteria may apply

Novartis Investigative Site

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Buenos Aires,C1055aaf,Argentina

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Buenos Aires,C1012aar,Argentina

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Rosario,Santa Fe Province,2000,Argentina

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Rosario,Santa Fe Province,S2000bzl,Argentina

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Liverpool,2170,Australia

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Parkville,Victoria,3050,Australia

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Melbourne,Victoria,3004,Australia

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St Leonards,2065,Australia

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Bruges,8000,Belgium

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Montreal,Quebec,H4a 3t2,Canada

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Lévis,Quebec,G6w 0m5,Canada

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Vancouver,British Columbia,V6t 2a1,Canada

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Aarhus N,8200,Denmark

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Glostrup Municipality,2600,Denmark

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Lille,59000,France

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Toulouse,31059,France

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Clermont-Ferrand,63003,France

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Poitiers,86021,France

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Bordeaux,33076,France

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Tours,37044,France

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Strasbourg,67000,France

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Paris,75940,France

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Nîmes,30029,France

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Nice,06001,France

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Thessaloniki,53246,Greece

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Larissa,411 10,Greece

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Chaïdári,124 62,Greece

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Bergamo,BG,24127,Italy

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Pavia,PV,27100,Italy

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Foggia,FG,71122,Italy

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Roma,RM,00133,Italy

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Roma,RM,00168,Italy

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Milan,MI,20132,Italy

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Genova,GE,16132,Italy

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Mexico City,14050,Mexico

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Mexico City,Mexico City,06700,Mexico

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Coimbra,3004-561,Portugal

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Lisbon,1169-050,Portugal

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Braga,4710243,Portugal

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Trnava,917 02,Slovakia

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Bratislava,826 06,Slovakia

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Pretoria,0041,South Africa

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Cape Town,Western Cape,7405,South Africa

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Valencia,46026,Spain

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El Palmar,Murcia,30120,Spain

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Valencia,Valencia,46017,Spain

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Madrid,28040,Spain

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Málaga,29010,Spain

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Majadahonda,Madrid,28222,Spain

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Córdoba,14004,Spain

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Madrid,28009,Spain

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Madrid,28034,Spain

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Seville,41009,Spain

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Barcelona,08035,Spain

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Bern,3010,Switzerland

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Zurich,8091,Switzerland

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Lausanne,1011,Switzerland

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Swansea,Sa6 6nl,United Kingdom

Holy Name Medical Center

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Teaneck,New Jersey,07666,United States

Diome Kramer
Mary Ann Picone

Premier Neurology

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Greenville,South Carolina,29605,United States

Mary Denise Hughes
Jada Crawford

Sibyl Wray MD Neurology PC

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Knoxville,Tennessee,37922,United States

Kim Puccio
Sibyl Wray

Neurology of Central FL Res Ctr

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Altamonte Springs,Florida,32714,United States

Adiana Perez
Alicia V Cabrera

John Peter Smith Hospital

Recruiting

Fort Worth,Texas,76104,United States

Valentina Jovic
Horacio Chiong-Rivero

Austin Regional Clinic

Recruiting

Austin,Texas,78731,United States

Jennifer Beanblossom
Diana Andino

Sanford Health

Recruiting

Fargo,North Dakota,58122,United States

Scott Belliston
Destini Spaeth

University of New Mexico

Recruiting

Albuquerque,New Mexico,87131-0001,United States

Emily Reese
Clotilde Hainline

Tallahassee Neurological Clinic

Recruiting

Tallahassee,Florida,32308,United States

Sharon Devore
Winston Ortiz

Memorial HC Ins for Neuroscience

Recruiting

Owosso,Michigan,48867,United States

Robert Joseph Pace
Mary Beth Blythe

Aqualane Clinical Research

Recruiting

Naples,Florida,34105,United States

Taylor Kerskie
Matthew J Baker

Neurology Associates PA

Recruiting

Maitland,Florida,32751,United States

William David Honeycutt
Kelly Holley

University of Florida

Recruiting

Gainesville,Florida,32610,United States

Torge Rempe
Semene Clement

Perseverance Research Center

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Scottsdale,Arizona,85253,United States

Barry Hendin
Adriana Romero

Michigan Institute of Neurological

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Farmington Hills,Michigan,48334,United States

Taylor Hess
Emily Blazejewski

University of Kansas Hospital

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Kansas City,Kansas,66160,United States

Vonda Whitley
Sharon Lynch

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Novartis Pharmaceuticals

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