Relapsing Multiple SclerosisPhase 3NCT06846281
Efficacy and Safety of Remibrutinib After Switching From Ocrelizumab in Participants Living With Relapsing Multiple Sclerosis.
A Phase 3 study testing Remibrutinib oral treatment and Ocrelizumab in people with Relapsing Multiple Sclerosis, run by Novartis Pharmaceuticals at 131 sites in 19 countries.
Trial summary
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). Read more about this study
- Who is it for?
- Ages 40 to 70 years
- Conditions the study is for
- Relapsing Multiple Sclerosis
- What is being tested?
- Remibrutinib oral treatment and Ocrelizumab
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 400 participants
- Where
- 131 sitesin 19 countries
- Study dates
- 23 Jun 2025to 25 Jun 2031
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 40 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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
Show all 10Show fewer
- Participant who is unable to undergo MRI scans
- History of life-threatening infusion or injection reaction related to ocrelizumab
- Participants not adequately controlled on ocrelizumab (CD19+ B-cell count ≥10 cells/µL at screening)
- Other inclusion and exclusion criteria may apply
Trial locations and contacts
131 sites in 19 countries. Contact the study team or a site near you to ask about taking part.
Novartis Pharmaceuticals contact
131 sites in 19 countries
United States45 sites, 44 recruiting
- Recruiting
University of New Mexico
Albuquerque, New Mexico, 87131-0001
Emily Reese, +1 505 272 2836, ejreese@salud.unm.edu
Clotilde Hainline
- Recruiting
Neurology of Central FL Res Ctr
Altamonte Springs, Florida, 32714
Adiana Perez, +1 407 790 4990, adiresearchcfl@gmail.com
Alicia V Cabrera
- Recruiting
Austin Regional Clinic
Austin, Texas, 78731
Katerina Rodriguez, +1 512 344 0362, krodriguez@innovoresearch.com
Diana Andino
- Withdrawn
Tufts Medical Center
Boston, Massachusetts, 02111
- Recruiting
SUNY Buffalo The Jacobs Neuro Inst
Buffalo, New York, 14203
Kara Patrick, kpatrick@buffalo.edu
Bianca Weinstock-Guttman
- Recruiting
Lahey Hospital and Medical Center
Burlington, Massachusetts, 01805
Anish Panda, +1 781 744 3874, Anish.Panda@lahey.org
Dan Michael Pineda
- Recruiting
Premier Health
Centerville, Ohio, 45459
Don McHone, djmchone@premierhealth.com
Jon Williams
- Recruiting
University of North Carolina
Chapel Hill, North Carolina, 27517
Marleny Nolasco, nolascom@neurology.unc.edu
Monica Maria Diaz
- Recruiting
Rush University Medical Center
Chicago, Illinois, 60607
Bartosz Jacher, Bartosz.Jacher@Northwestern.edu
Allison Osen
- Recruiting
University of Chicago
Chicago, Illinois, 60637
Cheryl Bibbs, +1 773 702 5382, cbibbs@bsd.uchicago.edu
Veronica Cipriani
- Recruiting
Univ of Cincinnati Medical Center
Cincinnati, Ohio, 45219
Gideon Gyebi, + 1 513 558 4489, gyebign@ucmail.uc.edu
Aram Zabeti
- Recruiting
Cleveland Clinic Foundation
Cleveland, Ohio, 44195
Dawn Maniawski, +1 216 445 5788, maniawd@ccf.org
Devon Conway
- Recruiting
Ohio Health Research Institute
Columbus, Ohio, 43214
Megan Heckathorn, 1 614 566 1262, Megan.Heckathorn@ohiohealth.com
Jacqueline Nicholas
- Recruiting
Univ of Texas Southwest Med Center
Dallas, Texas, 75390-9034
Manuel Huichapa, manuel.huichapa@utsouthwestern.edu
Peter Sguigna
- Recruiting
Sanford Health
Fargo, North Dakota, 58102
Neurology Research Coordinator, 701-234-2474, clinicalresearch@sanfordhealth.org
Scott Belliston
- Recruiting
Michigan Institute of Neurological
Farmington Hills, Michigan, 48334
Emily Blazejewski, +1 248 553 0010, eblazejewski@mindonline.com
Martin Belkin
- Recruiting
John Peter Smith Hospital
Fort Worth, Texas, 76104
Valentina Jovic, +1 817 702 1680, Vjovic@jpshealth.org
Horacio Chiong-Rivero
- Recruiting
Neurology Center of New England PC
Foxborough, Massachusetts, 02035
Jillian Pellegrini, +1 781 551 5812, jpellegrini@neurocenterne.com
Salvatore Napoli
- Recruiting
University of Florida
Gainesville, Florida, 32610
Whitney Miller, wjm1433@ufl.edu
Torge Rempe
- Recruiting
Center for Neurological Disorders G
Greenfield, Wisconsin, 53228-1321
Emily Barraza, Emily.barraza@cndmilwaukee.com
Bhupendra Khatri
- Recruiting
Premier Neurology
Greenville, South Carolina, 29605
Anna Lares, +1 864 655 4005, anna.l@premier-neuro.com
Mary Denise Hughes
- Recruiting
Memorial Healthcare System
Hollywood, Florida, 33021
Hina Khan, +1 954 265 6934, hikhan@mhs.net
Buse Sengul
- Recruiting
University of California Irvine
Irvine, California, 92697
Veronica Martin, vero@hs.uci.edu
Michael Sy
- Recruiting
University of Kansas Hospital
Kansas City, Kansas, 66160
Vonda Whitley, +1 913 588 9600, vwhitley@kumc.edu
Sharon Lynch
- Recruiting
Sibyl Wray MD Neurology PC
Knoxville, Tennessee, 37922
Kim Puccio, +1 865 218 6222, kpuccio@hopeneuro.com
Sibyl Wray
- Recruiting
Cleveland Clinic Foundation
Las Vegas, Nevada, 89106
Laurinda Keelen, +1 702 483 6003, keelenl@ccf.org
Carrie M Hersh
- Recruiting
Neurology Associates PA
Maitland, Florida, 32751
Nicole Perovic, +1 407 647 5996, nicole.naparesearch@gmail.com
William David Honeycutt
- Recruiting
Elite Clinical Research
Miami, Florida, 33144
Rebeca Fernandez, +1 305 262 3396, rfernandez@eliteclinicalresearch.com
Gelasio A Baras
- Recruiting
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
Anna Freiberg, +1 414 805 5249, afreiberg@mcw.edu
Ahmed Obeidat
- Recruiting
Aqualane Clinical Research
Naples, Florida, 34105
Taylor Kerskie, +1 239 434 0332, taylor@aqualaneresearch.com
Matthew J Baker
- Recruiting
MedStar Montgomery Medical Center
Olney, Maryland, 20832
Yemisrach Tadesse, yemisrach.g.tadesse@medstar.net
Faria Amjad
- Recruiting
Advent Health Orlando
Orlando, Florida, 32803
McKinzie McTyeire, +1 407 303 5600, mckinzie.mctyeire@adventhealth.com
Anita Fletcher
- Recruiting
Orlando Health Clinical Trials
Orlando, Florida, 32806
Charlene Carlo, +1 407 352 5434, Charlene.carlo@orlandohealth.com
Amparo Gutierrez
- Recruiting
Memorial HC Ins for Neuroscience
Owosso, Michigan, 48867
Samantha Katt, skatt@memorialhealthcare.org
Robert Joseph Pace
- Recruiting
Saturn Research Solutions LLC
Plano, Texas, 75024
Maxine Fligg, +1 972 403 8184, mfligg@saturnclinical.com
Annette Okai
- Recruiting
Providence Neurological Services West
Portland, Oregon, 97225
Hunter Weaver, +1 503 216 1150, hunter.weaver@providence.org
Jessica Rice
- Recruiting
Velocity Clinical Research
Raleigh, North Carolina, 27607
Harsh Patel, HPatel@velocityclinical.com
Casey Jeffreys
- Recruiting
Virginia Commonwealth University
Richmond, Virginia, 23298-0111
Aarati Pokharel, aarati.pokharel@vcuhealth.org
Ryan Canissario
- Recruiting
Perseverance Research Center
Scottsdale, Arizona, 85253
Adriana Romero, aromero@prcresearcheducation.com
Barry Hendin
- Recruiting
WA Uni School Of Med
St Louis, Missouri, 63110
Kiontay Watson, +1 314 362 3293, k.watson@wustl.edu
Matthew R Brier
- Recruiting
Tallahassee Neurological Clinic
Tallahassee, Florida, 32308
Sharon Devore, +1 850 878 8121, sharondevore@hotmail.com
Winston Ortiz
- Recruiting
University Of South Florida
Tampa, Florida, 33612
Amber McPherson, +1 813 974 9423, amjackson@usf.edu
John Ciotti
- Recruiting
Holy Name Medical Center
Teaneck, New Jersey, 07666
Diome Kramer, dkramer@holyname.org
Mary Ann Picone
- Recruiting
Vero Beach Neurology
Vero Beach, Florida, 32960
Clellia Bergamino, +1 772 492 7051#232, cbergamino@geodysseyrsch.com
Stuart Shafer
- Recruiting
Medstar Washington Hospital Center
Washington D.C., District of Columbia, 20010-2975
Anu Bhooshan, +1 202 877 8946, anu.r.bhooshan@medstar.net
Brian Barry
France11 sites, 11 recruiting
- Recruiting
Novartis Investigative Site
Bordeaux, 33076
- Recruiting
Novartis Investigative Site
Clermont-Ferrand, 63003
- Recruiting
Novartis Investigative Site
Lille, 59000
- Recruiting
Novartis Investigative Site
Marseille, 13885
- Recruiting
Novartis Investigative Site
Nice, 06000
- Recruiting
Novartis Investigative Site
Nîmes, 30029
- Recruiting
Novartis Investigative Site
Paris, 75940
- Recruiting
Novartis Investigative Site
Poitiers, 86021
- Recruiting
Novartis Investigative Site
Strasbourg, 67000
- Recruiting
Novartis Investigative Site
Toulouse, 31059
- Recruiting
Novartis Investigative Site
Tours, 37044
Spain11 sites, 11 recruiting
- Recruiting
Novartis Investigative Site
Barcelona, 08035
- Recruiting
Novartis Investigative Site
Córdoba, 14004
- Recruiting
Novartis Investigative Site
El Palmar, Murcia, 30120
- Recruiting
Novartis Investigative Site
Madrid, 28009
- Recruiting
Novartis Investigative Site
Madrid, 28034
- Recruiting
Novartis Investigative Site
Madrid, 28040
- Recruiting
Novartis Investigative Site
Madrid, 28222
- Recruiting
Novartis Investigative Site
Málaga, 29010
- Recruiting
Novartis Investigative Site
Seville, 41009
- Recruiting
Novartis Investigative Site
Valencia, Valencia, 46017
- Recruiting
Novartis Investigative Site
Valencia, 46026
Germany10 sites, 10 recruiting
- Recruiting
Novartis Investigative Site
Berlin, 13353
- Recruiting
Novartis Investigative Site
Bochum, 44791
- Recruiting
Novartis Investigative Site
Erbach im Odenwald, 64711
- Recruiting
Novartis Investigative Site
Essen, 45147
- Recruiting
Novartis Investigative Site
Greifswald, 17475
- Recruiting
Novartis Investigative Site
Heidelberg, 69120
- Recruiting
Novartis Investigative Site
Marburg, Hesse, 35043
- Recruiting
Novartis Investigative Site
Münster, 48149
- Recruiting
Novartis Investigative Site
Ulm, 89073
- Recruiting
Novartis Investigative Site
Ulm, 89081
Italy7 sites, 7 recruiting
- Recruiting
Novartis Investigative Site
Bergamo, BG, 24127
- Recruiting
Novartis Investigative Site
Foggia, FG, 71122
- Recruiting
Novartis Investigative Site
Genova, GE, 16132
- Recruiting
Novartis Investigative Site
Milan, MI, 20132
- Recruiting
Novartis Investigative Site
Pavia, PV, 27100
- Recruiting
Novartis Investigative Site
Roma, RM, 00133
- Recruiting
Novartis Investigative Site
Roma, RM, 00168
Brazil6 sites, 6 recruiting
- Recruiting
Novartis Investigative Site
Fortaleza, Ceará, 60120-002
- Recruiting
Novartis Investigative Site
Joinville, Santa Catarina, 89202-165
- Recruiting
Novartis Investigative Site
Porto Alegre, Rio Grande do Sul, 90430-001
- Recruiting
Novartis Investigative Site
Porto Alegre, Rio Grande do Sul, 90560-032
- Recruiting
Novartis Investigative Site
São Paulo, São Paulo, 01244-030
- Recruiting
Novartis Investigative Site
São Paulo, São Paulo, 04076-004
Czechia6 sites, 5 recruiting
- Active, not recruiting
Novartis Investigative Site
Brno, 602 00
- Recruiting
Novartis Investigative Site
Brno, 625 00
- Recruiting
Novartis Investigative Site
Hradec Králové, 500 05
- Recruiting
Novartis Investigative Site
Jihlava, 586 01
- Recruiting
Novartis Investigative Site
Pardubice, 532 03
- Recruiting
Novartis Investigative Site
Prague, 150 06
Argentina4 sites, 4 recruiting
- Recruiting
Novartis Investigative Site
Buenos Aires, C1055AAF
- Recruiting
Novartis Investigative Site
Caba, C1182
- Recruiting
Novartis Investigative Site
Rosario, Santa Fe Province, 2000
- Recruiting
Novartis Investigative Site
Rosario, Santa Fe Province, S2000BZL
Australia4 sites, 3 recruiting
- Withdrawn
Novartis Investigative Site
Liverpool, 2170
- Recruiting
Novartis Investigative Site
Melbourne, Victoria, 3004
- Recruiting
Novartis Investigative Site
Parkville, Victoria, 3050
- Recruiting
Novartis Investigative Site
St Leonards, 2065
Canada4 sites, 4 recruiting
- Recruiting
Novartis Investigative Site
Edmonton, Alberta, T6G 2B7
- Recruiting
Novartis Investigative Site
Lévis, Quebec, G6W 0M5
- Recruiting
Novartis Investigative Site
Montreal, Quebec, H4A 3T2
- Recruiting
Novartis Investigative Site
Vancouver, British Columbia, V6T 2A1
United Kingdom4 sites, 4 recruiting
- Recruiting
Novartis Investigative Site
Leeds, LS1 3EX
- Recruiting
Novartis Investigative Site
London, W6 8RF
- Recruiting
Novartis Investigative Site
Sheffield, South Yorkshire, S10 2JF
- Recruiting
Novartis Investigative Site
Swansea, SA6 6NL
Greece3 sites, 3 recruiting
- Recruiting
Novartis Investigative Site
Chaïdári, 124 62
- Recruiting
Novartis Investigative Site
Larissa, 411 10
- Recruiting
Novartis Investigative Site
Thessaloniki, 532 46
Portugal3 sites, 3 recruiting
- Recruiting
Novartis Investigative Site
Braga, 4710-243
- Recruiting
Novartis Investigative Site
Coimbra, 3004-561
- Recruiting
Novartis Investigative Site
Lisbon, 1169-050
Switzerland3 sites, 3 recruiting
- Recruiting
Novartis Investigative Site
Bern, 3010
- Recruiting
Novartis Investigative Site
Lausanne, 1011
- Recruiting
Novartis Investigative Site
Zurich, 8091
Belgium2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Bruges, 8000
- Recruiting
Novartis Investigative Site
Overpelt, 3900
Denmark2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Aarhus N, 8200
- Recruiting
Novartis Investigative Site
Glostrup Municipality, 2600
Mexico2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Mexico City, Mexico City, 06700
- Recruiting
Novartis Investigative Site
Mexico City, 14050
Slovakia2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Bratislava, Slovakia, 826 06
- Recruiting
Novartis Investigative Site
Trnava, Slovakia, 917 02
South Africa2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Cape Town, Western Cape, 7405
- Recruiting
Novartis Investigative Site
Pretoria, 0041
About this study
Official title: 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
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).
Read the detailed description
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.
- Conditions
- Relapsing Multiple Sclerosis
- Being tested
- Remibrutinib oral treatment, Ocrelizumab
- Keywords
- MS, RMS, Remibrutinib, LOU064, Ocrelizumab, Age, MRI, T2 lesions, NEDA-3
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Remibrutinib oral treatmentDrug
Also called LOU064
Remibrutinib tablet taken daily
OcrelizumabDrug
Ocrelizumab 600mg infusion or 920mg injection
| Study group | Role | What they receive |
|---|---|---|
| Remibrutinib Core | Experimental | Remibrutinib tablet taken orally Receives: Drug: Remibrutinib oral treatment |
| Ocrelizumab Core | Active comparator | Ocrelizumab at standard dose and route of administration (i.v. or s.c) per label Receives: Drug: Ocrelizumab |
| Remibrutinib Extension | Experimental | Remibrutinib tablet taken orally Receives: Drug: Remibrutinib oral treatment |
| Remibrutinib Extension (Ocrelizumab in Core) | Experimental | Remibrutinib tablet taken orally Receives: Drug: Remibrutinib oral treatment |
What is being measured
The primary outcome is the main question the study is designed to answer.
Annualized rate of new or enlarging T2 lesions_Core Part
Number of new/enlarging T2 lesions per year on MRI at month 24 (relative to baseline)
Measured: Baseline up to month 24
Secondary outcomes (5)
Participants with no evidence of disease activity-3 (NEDA-3)_Core Part
Participants with no evidence of disease activity-3 (NEDA-3), as assessed by absence of confirmed MS relapses, 6-month confirmed disability progression (6mCDP) and new/enlarging T2 lesions on MRI
Measured: Baseline up to month 24
Number of adverse events (AEs) and serious adverse events (SAEs)_Core Part
Adverse events will be collected throughout the trial. Any safety assessment findings such as laboratory, vital signs, electrocardiogram data that are considered clinically significant or meet the protocol definition of an adverse event will be reported as adverse event or serious adverse event, as appropriate
Measured: Baseline up to month 24
Annualized rate of new or enlarging T2 lesions_Extension Part
Number of new/enlarging T2 lesions per year on MRI
Measured: Month 24 up to month 48
Participants with no evidence of disease activity-3 (NEDA-3)_Extension Part
Participants with no evidence of disease activity-3 (NEDA-3), as assessed by absence of confirmed MS relapses, 6-month confirmed disability progression (6mCDP) and new/enlarging T2 lesions on MRI
Measured: Month 24 up to month 48
Number of Adverse events and serious adverse events_Extension Part
Adverse events will be collected throughout the trial. Any safety assessment findings such as laboratory, vital signs, electrocardiogram data that are considered clinically significant or meet the protocol definition of an adverse event will be reported as adverse event or serious adverse event, as appropriate
Measured: Month 24 up to month 48
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Feb 2025
- Study start23 Jun 2025
- Primary completion25 Jul 2029 (estimated)
- Study completion25 Jun 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Relapsing Multiple SclerosisStudies of the same condition, open and under way.
- More trials run by Novartis PharmaceuticalsThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Novartis Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06846281
- Sponsor's protocol ID
- CLOU064C12306
- Other IDs
- 2023-509275-17, 2023
- Status last verified
- Oct 2026
- First submitted
- 24 Feb 2025
- Last updated
- 26 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com.
Study at a glance
From the registry record, last updated by the sponsor on 26 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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 ID
- NCT06846281
- Acronym / sponsor ID
- CLOU064C12306
- Conditions
- Relapsing Multiple Sclerosis
- Keywords
- MS, RMS, Remibrutinib, LOU064, Ocrelizumab, Age, MRI, T2 lesions
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- Novartis PharmaceuticalsIndustry (pharma, biotech, devices)
- Study start
- 23 Jun 2025 (actual)
- Primary completion
- 25 Jul 2029 (estimated)
- Study completion
- 25 Jun 2031 (estimated)
- First posted
- 26 Feb 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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).
Detailed description
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Remibrutinib Core | Experimental | Drug: Remibrutinib oral treatmentRemibrutinib tablet taken orally |
| Ocrelizumab Core | Active comparator | Drug: OcrelizumabOcrelizumab at standard dose and route of administration (i.v. or s.c) per label |
| Remibrutinib Extension | Experimental | Drug: Remibrutinib oral treatmentRemibrutinib tablet taken orally |
| Remibrutinib Extension (Ocrelizumab in Core) | Experimental | Drug: Remibrutinib oral treatmentRemibrutinib tablet taken orally |
Who may qualify
- Ages
- 40 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- 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 (10 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Remibrutinib oral treatmentAlso: LOU064Remibrutinib tablet taken daily | Drug | Remibrutinib Core, Remibrutinib Extension, Remibrutinib Extension (Ocrelizumab in Core) |
| OcrelizumabOcrelizumab 600mg infusion or 920mg injection | Drug | Ocrelizumab Core |
Primary outcome
Annualized rate of new or enlarging T2 lesions_Core Part
Time frame: Baseline up to month 24
Number of new/enlarging T2 lesions per year on MRI at month 24 (relative to baseline)
5 secondary outcomes
Participants with no evidence of disease activity-3 (NEDA-3)_Core Part
Time frame: Baseline up to month 24
Number of adverse events (AEs) and serious adverse events (SAEs)_Core Part
Time frame: Baseline up to month 24
Annualized rate of new or enlarging T2 lesions_Extension Part
Time frame: Month 24 up to month 48
Participants with no evidence of disease activity-3 (NEDA-3)_Extension Part
Time frame: Month 24 up to month 48
Number of Adverse events and serious adverse events_Extension Part
Time frame: Month 24 up to month 48
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Oct 2026.
- Individual participant dataSharing planned: Yes. Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Novartis Pharmaceuticals contact
131 sites in 19 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Remibrutinib oral treatment and Ocrelizumab in people with Relapsing Multiple Sclerosis, run by Novartis Pharmaceuticals at 131 sites in 19 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 26 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 131 sites in United States, France, Spain, Germany, Italy and 14 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Novartis Pharmaceuticals (1-888-669-6682, novartis.email@novartis.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Annualized rate of new or enlarging T2 lesions_Core Part (time frame: Baseline up to month 24). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Oct 2026.