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Fenebrutinib

Phase 3

Multiple Sclerosis, Primary Progressive | Small molecule | Neurology |Roche Holding AG|Last Updated: Sep 3, 2026

Target and mechanism

Molecular targetBTK
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment985

FDA Designations

No designations recorded

Clinical trial landscape

Fenebrutinib · 6 trials · 3 indications

Phase 3 3Phase 2 2Phase 1 1
NCT04586023Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Teriflunomide in Relapsing Multiple Sclerosis (RMS)Relapsing Multiple Sclerosis
ACTIVE NOT_RECRUITING751 Analytics
NCT04586010A Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Teriflunomide in Relapsing Multiple Sclerosis (RMS)Relapsing Multiple Sclerosis
ACTIVE NOT_RECRUITING746 Analytics
NCT04544449A Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Ocrelizumab in Adult Participants With Primary Progressive Multiple SclerosisMultiple Sclerosis, Primary Progressive
ACTIVE NOT_RECRUITING985 Analytics
PHASE3ACTIVE NOT_RECRUITING
Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Teriflunomide in Relapsing Multiple Sclerosis (RMS)
Relapsing Multiple SclerosisUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Teriflunomide in Relapsing Multiple Sclerosis (RMS)
Relapsing Multiple SclerosisUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Efficacy and Safety of Fenebrutinib Compared With Ocrelizumab in Adult Participants With Primary Progressive Multiple Sclerosis
Multiple Sclerosis, Primary ProgressiveUnlock trial analytics

Study Endpoints

Primary Endpoints

Annualized Relapse Rate (ARR)
Minimum of 96 weeks
Time to Onset of Composite 12-Week Confirmed Disability Progression (cCDP12)
Minimum of 120 weeks
Plasma Concentration of Fenebrutinib
Up to Week 96
Total Number of New T1 Gadolinium (Gd)-enhancing Lesions on Brain Observed Through Magnetic Resonance Imaging (MRI) Scans
At Week 12
DBT Phase: New Gadolinium (Gd) - Enhancing T1 Lesion Rate Observed on Magnetic Resonance Imaging (MRI) Scans of the Brain Over 12 Weeks
MRI scans performed at Weeks 4, 8 and 12

Radiologic evaluation for Gd enhancing T1 lesion rate was performed using a standardized MRI protocol at screening, and at Weeks 4, 8, and 12. All MRI scans were read by a centralized reading center for efficacy endpoints. The total number of new Gd-enhancing T1 lesions were calculated as the sum of the individual number of new lesions observed at Weeks 4, 8 and 12. The lesion rate (new lesions per scan) was estimated from a negative binomial regression model for the total number of events and was adjusted for the covariate 'presence or absence of T1 Gd+ lesions on the screening MRI'. Log-transformed number of scans were included in the negative binomial model as an "offset" variable to account for different number of scans.

Percentage of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs) Percentage of the Total Radioactive Dose Administered Excreted from Urine and Feces"; TimeFrame: "Day 1 to end of study (approximately 35 days post-dose)
Screening to end of study (approximately 35 days post-dose)

An AE is defined as any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A SAE is defined as any AE that can be fatal, life threatening, prolongs inpatient hospitalization, significant disability, congenital anamoly, is a significant medical event in the Investigator's judgment.

Secondary Endpoints

Time to Onset of Composite 12-week Confirmed Disability Progression (cCDP12)
Minimum of 96 weeks
Time to Onset of Composite 24-week Confirmed Disability Progression (cCDP24)
Minimum of 96 weeks
Time to Onset of 12-week Confirmed Disability Progression (CDP12)
Minimum of 96 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
FenebrutinibEXPERIMENTALParticipants will receive oral (PO) fenebrutinib, with teriflunomide-matching placebo.
TeriflunomideACTIVE_COMPARATORParticipants will receive PO teriflunomide, with fenebrutinib-matching placebo in a blinded fashion.
OcrelizumabACTIVE_COMPARATORParticipants will receive IV ocrelizumab and oral fenebrutinib-matching placebo.
PlaceboPLACEBO_COMPARATORParticipants will receive oral placebo.
Single Oral Solution DoseEXPERIMENTALSingle 200-mg (approximately 100-µCi) oral solution dose of \[14C/12C\]-fenebrutinib under fasted conditions.

Interventions

NameTypeDescription
FenebrutinibDRUGParticipants will receive fenebrutinib.
TeriflunomideDRUGParticipants will receive teriflunomide.
PlaceboDRUGParticipants will receive teriflunomide-matching placebo or fenebrutinib-matching placebo.
OcrelizumabDRUGParticipants will receive ocrelizumab.
Placebo matched to ocrelizumabDRUGParticipants will receive ocrelizumab-matching placebo.
Placebo matched to fenebrutinibDRUGParticipants will receive fenebrutinib-matching placebo
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites106

Inclusion Criteria: * Expanded Disability Status Scale (EDSS) score of 0 - 5.5 at screening * A diagnosis of RMS in accordance with the revised 2017 McDonald Criteria * Ability to complete the 9-hole Peg Test (9-HPT) for each hand in \< 240 seconds * Ability to perform the Timed 25-foot Walk Test (...

Countries:United StatesAustriaBrazilBulgariaCanadaDenmarkFranceGreeceGuatemalaIndiaItalyMexicoPolandRussiaSouth KoreaTurkey (Türkiye)United KingdomArgentinaChinaDominican RepublicFinlandGeorgiaGermanyHong KongHungaryKenyaNetherlandsNorth MacedoniaPeruPortugalSerbiaSpainSwitzerlandTunisiaUkraineAustraliaChileColombiaIsraelPuerto RicoBosnia and HerzegovinaCroatiaCzechiaSlovakia
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Recent Changes (Last 90 Days)

LOWSep 3, 2026NCT04544449Completion: 2027-07-21 → 2027-02-28
LOWSep 3, 2026NCT04586023lastUpdatePostDate: changed
LOWSep 3, 2026NCT04544449Completion: 2027-07-21 → 2027-02-28
LOWSep 3, 2026NCT04586023lastUpdatePostDate: changed
LOWAug 19, 2026NCT05119569Completion: 2026-12-30 → 2026-12-26
LOWAug 19, 2026NCT05119569Completion: 2026-12-30 → 2026-12-26
LOWAug 14, 2026NCT04586010lastUpdatePostDate: changed
LOWAug 14, 2026NCT04586010lastUpdatePostDate: changed
LOWAug 14, 2026NCT04586010lastUpdatePostDate: changed
LOWAug 11, 2026NCT07161258lastUpdatePostDate: changed
LOWAug 11, 2026NCT07161258lastUpdatePostDate: changed

Frequently asked questions about Fenebrutinib

What is Fenebrutinib used for?

Fenebrutinib is an investigational small molecule being studied for multiple sclerosis, including relapsing multiple sclerosis and primary progressive multiple sclerosis. It is also being evaluated in healthy participants for safety and tolerability. Fenebrutinib is not approved and remains in clinical development.

What does Fenebrutinib target?

Fenebrutinib is a kinase inhibitor, belonging to the -tinib class of drugs. It targets Bruton's tyrosine kinase (BTK), an enzyme involved in B-cell and microglial signaling. By inhibiting BTK, Fenebrutinib may modulate immune responses implicated in multiple sclerosis pathology.

Who makes Fenebrutinib?

Fenebrutinib is being developed by Roche Holding AG, which trades under the ticker RHHBY. Roche is conducting clinical trials to evaluate the drug's safety and efficacy in multiple sclerosis indications.

What phase is Fenebrutinib in?

Fenebrutinib is in Phase 3 clinical development for relapsing multiple sclerosis and primary progressive multiple sclerosis. A Phase 2 trial in relapsing multiple sclerosis is also active. It is not FDA approved and remains investigational.

What clinical trials is Fenebrutinib in?

Fenebrutinib has four trials listed on ClinicalTrials.gov. NCT04544449 is a Phase 3 study comparing it with ocrelizumab in primary progressive MS. NCT04586010 is a Phase 3 study versus teriflunomide in relapsing MS. NCT05119569 is a Phase 2 study in relapsing MS. NCT03596632 is a completed Phase 1 healthy volunteer study.

Is Fenebrutinib the same as other drugs?

Fenebrutinib is a distinct investigational drug and is not known to be the same as any other approved medication. It is being studied as a monotherapy in multiple sclerosis trials, and no alternative names have been reported.