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Orelabrutinib

Phase 3

Multiple Sclerosis (MS) Primary Progressive | Small molecule | Neurology |Zenas BioPharma, Inc.|Last Updated: Jul 22, 2026

Success Probability
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment705
FDA Designations
No designations recorded
Clinical trial landscape

Orelabrutinib · 2 trials · 2 indications

Phase 3 2
NCT07067463A Study of Orelabrutinib in Patients With Primary Progressive Multiple SclerosisMultiple Sclerosis (MS) Primary Progressive
RECRUITING705 Analytics
NCT07299019A Study of Orelabrutinib in Patients With Secondary Progressive Multiple SclerosisSecondary Progressive Multiple Sclerosis
RECRUITING990 Analytics
PHASE3RECRUITING
A Study of Orelabrutinib in Patients With Primary Progressive Multiple Sclerosis
Multiple Sclerosis (MS) Primary ProgressiveUnlock trial analytics
PHASE3RECRUITING
A Study of Orelabrutinib in Patients With Secondary Progressive Multiple Sclerosis
Secondary Progressive Multiple SclerosisUnlock trial analytics
Study Endpoints
Primary Endpoints
Time to onset of composite confirmed disability progression (cCDP) , confirmed over at least 12 weeks (12-week cCDP)
Up to approximately 120 weeks

* Expanded disability status scale (EDSS) score increase ≥ 1.0 point from baseline when the baseline score is ≤ 5.0, or ≥ 0.5 points from baseline when the baseline score is \> 5.0, OR * ≥ 20% increase in the Timed 25-Foot Walk Test (T25FWT), OR * ≥ 20% increase in the 9-hole Peg Test (9HPT)

Time to onset of confirmed disability progression (CDP) events, confirmed over at least 24 weeks
Up to approximately 120 weeks

Expanded disability status scale (EDSS) score increase ≥ 1.0 point from baseline when the baseline score is ≤ 5.0, or ≥ 0.5 points from baseline when the baseline score is \> 5.0

Secondary Endpoints
Time to onset of composite confirmed disability progression (cCDP) , confirmed over at least 24 weeks (24-week cCDP)
Up to approximately 120 weeks
Time to onset of confirmed disability progression (CDP) , confirmed over at least 24 weeks (24-week CDP)
Up to approximately 120 weeks
MRI T2 lesion
Up to approximately 120 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Orelabrutinib GroupEXPERIMENTAL -
Placebo GroupPLACEBO_COMPARATOR -
Interventions
NameTypeDescription
OrelabrutinibDRUGOrally
PlaceboDRUGOrally
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Eligibility Criteria
Age Range18 Years to 60 Years
SexALL
Healthy VolunteersNo
Study Sites32

Inclusion Criteria: * 18 to 60 years of age, inclusive * Diagnosed with Primary Progressive MS (PPMS) according to 2017 McDonald criteria * Participant must have documented evidence of disability progression observed during the 24 months before screening. * Expanded disability status scale (EDSS) s...

Countries:United StatesBulgariaCroatiaCzechiaEstoniaGermanyItalyPolandSpain
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Recent Changes (Last 90 Days)
LOWJul 22, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 22, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 21, 2026NCT07299019lastUpdatePostDate: changed
LOWJul 21, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 17, 2026NCT07299019lastUpdatePostDate: changed
LOWJul 17, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 17, 2026NCT07299019lastUpdatePostDate: changed
LOWJul 17, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 14, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 14, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 10, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 10, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 7, 2026NCT07067463lastUpdatePostDate: changed
LOWJul 7, 2026NCT07067463lastUpdatePostDate: changed
LOWJun 30, 2026NCT07299019lastUpdatePostDate: changed
LOWJun 30, 2026NCT07299019lastUpdatePostDate: changed
LOWJun 30, 2026NCT07299019lastUpdatePostDate: changed
LOWJun 29, 2026NCT07067463lastUpdatePostDate: changed
LOWJun 29, 2026NCT07067463lastUpdatePostDate: changed
LOWJun 26, 2026NCT07067463lastUpdatePostDate: changed