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Frexalimab

Phase 3

Multiple Sclerosis | Small molecule | Neurology |Sanofi|Last Updated: Jul 20, 2026

Success Probability
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Market & Valuation
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment2,758
FDA Designations
No designations recorded
Clinical trial landscape

Frexalimab · 6 trials · 5 indications

Phase 3 3Phase 2 3
NCT07325292Non-inferiority Study of Frexalimab Subcutaneous Administration Compared to Intravenous Administration in Adult Participants With Multiple SclerosisMultiple Sclerosis
RECRUITING160 Analytics
NCT06141486Efficacy and Safety Study of Frexalimab (SAR441344) in Adults With Nonrelapsing Secondary Progressive Multiple SclerosisMultiple Sclerosis
ACTIVE NOT_RECRUITING943 Analytics
NCT06141473Efficacy and Safety Studies of Frexalimab (SAR441344) in Adults With Relapsing Forms of Multiple SclerosisMultiple Sclerosis
ACTIVE NOT_RECRUITING1,655 Analytics
PHASE3RECRUITING
Non-inferiority Study of Frexalimab Subcutaneous Administration Compared to Intravenous Administration in Adult Participants With Multiple Sclerosis
Multiple SclerosisUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Efficacy and Safety Study of Frexalimab (SAR441344) in Adults With Nonrelapsing Secondary Progressive Multiple Sclerosis
Multiple SclerosisUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Efficacy and Safety Studies of Frexalimab (SAR441344) in Adults With Relapsing Forms of Multiple Sclerosis
Multiple SclerosisUnlock trial analytics
Study Endpoints
Primary Endpoints
Area under the curve over the interval W20 to W24(part A)
Until Week 24

AUCW20-W24

Trough concentration at steady state(part A)
Until Week 24

Ctrough,SS

Time to onset of composite confirmed disability progression (cCDP) confirmed over 6 months in the double-blind treatment period
Up to 36 months

Defined as Increase from the baseline expanded disability status scale (EDSS) score of ≥1.0 point when the baseline is \<5.5, or ≥0.5 point when the baseline is ≥5.5, OR Increase of ≥20% from the baseline time in the 9 hole peg test (9HPT),OR Increase of ≥20% from the baseline time in the timed 25 foot walk (T25FW) test

Annualized relapse rate (ARR) during the study period assessed by protocol defined adjudicated relapses
Until Week 156

ARR during the study period assessed by protocol-defined adjudicated relapses. This endpoint will be analyzed in the ITT population of each study using a negative binomial model with the total number of adjudicated relapses per participant occurring during the observation period as the response variable and with terms for treatment group, Gd-enhancing T1 lesions at baseline (presence, absence), EDSS strata (\<4, ≥4), and geographical region (US, non-US).

Composite efficacy failure rate (BPAR, graft loss, and death) by 1 year post kidney transplantation
by 1 year

BPAR is defined as biopsy confirmed T cell mediated and antibody mediated rejection as categorized by BANFF 2022; graft loss is defined as the first date the patients meet any of the following criteria: chronic dialysis for a least 56 days, day of allograft nephrectomy, or day of re-transplant.

Percent reduction in urine protein to creatinine ratio (UPCR)
From baseline to Week 12
Change in mean 2h mixed meal tolerance test (MMTT) stimulated C-peptide concentration, calculated from AUC from baseline to W52 for Part B (12-21 y.o.)
Baseline to Week 52

mixed meal tolerance test (MMTT) stimulated C-peptide concentration is to be calculated from AUC

Change in mean 2h mixed meal tolerance test (MMTT) stimulated C-peptide concentration, calculated from AUC from baseline to W26 for Part C (6-11 y.o.)
Baseline to Week 26

mixed meal tolerance test (MMTT) stimulated C-peptide concentration is to be calculated from AUC

Secondary Endpoints
Frexalimab plasma concentrations over time(part A)
Until Week 24
Pharmacokinetic parameters: Cmax(part A)
Until Week 24
Pharmacokinetic parameters: Tmax(part A)
Until Week 24
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Frexalimab SCEXPERIMENTALFrexalimab SC (home self-administration via on-body delivery system(OBDS), is allowed from the beginning of Part B after appropriate training and participant and Investigator agreement)
Frexalimab IVEXPERIMENTALFrexalimab IV
FrexalimabEXPERIMENTALFrexalimab IV administration
PlaceboPLACEBO_COMPARATORMatching placebo
TeriflunomideACTIVE_COMPARATORParticipants will receive teriflunomide tablet and placebo infusion.
TacrolimusACTIVE_COMPARATORTacrolimus
BrivekimigEXPERIMENTALBrivekimig active dose
RilzabrutinibEXPERIMENTALRilzabrutinib active dose
Frexalimab Dose 1EXPERIMENTAL -
Frexalimab Dose 2EXPERIMENTAL -
Frexalimab Dose 3EXPERIMENTAL -
Interventions
NameTypeDescription
FrexalimabDRUGPharmaceutical form:Solution for injection-Route of administration:SC injection
MRI contrast-enhancing preparationsDRUGRoute of administration:IV injection
PlaceboDRUGSolution for IV infusion
MRI contrast-enhancing agentsDRUGIV, as per respective label
TeriflunomideDRUGAubagio oral tablet
Placebo infusionDRUGSolution for IV infusion
Placebo tabletDRUGOral tablet
CholestyramineDRUGoral, 8 g 3 times daily for 11 days for accelerated elimination procedure (4 g 3 times daily for 11 days in case of intolerance). The teriflunomide local label should be followed.
Activated charcoalDRUGoral, 50 g every 12 hours for 11 days for accelerated elimination procedure. The teriflunomide local label should be followed.
TacrolimusDRUGPharmaceutical form:Capsule-Route of administration:Oral
rabbit anti-thymocyte globulinDRUGPharmaceutical form:Solution for injection-Route of administration:IV
mycophenolate mofetilDRUGPharmaceutical form:Tablet or capsule-Route of administration:Oral
mycophenolate sodiumDRUGPharmaceutical form:Tablet-Route of administration:Oral
methylprednisoloneDRUGPharmaceutical form:Solution for injection-Route of administration:IV
prednisoneDRUGPharmaceutical form:Tablet-Route of administration:Oral
brivekimigDRUGbrivekimig treatment
rilzabrutinibDRUGrilzabrutinib treatment
InsulinDRUGSC injection, dose and frequency will be established and/or adjusted by investigator
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Eligibility Criteria
Age Range18 Years to 60 Years
SexALL
Healthy VolunteersNo
Study Sites34

Inclusion Criteria: The participant must qualify for inclusion per either Group A or B criteria as detailed below, meeting all the inclusion criteria of the applicable group: Group A (RMS) * The participant must be 18 to 55 years of age, inclusive, at the time of signing the informed consent. * T...

Countries:United StatesBelgiumChinaJapanArgentinaAustraliaBrazilBulgariaCanadaChileCzechiaFranceGermanyGreeceHungaryIndiaItalyNetherlandsPolandPortugalSaudi ArabiaSouth KoreaSpainSwedenTurkey (Türkiye)UkraineUnited KingdomAustriaCroatiaDenmarkHong KongIsraelLithuaniaMalaysiaMexicoPuerto RicoRomaniaSingaporeSlovakiaSouth AfricaSwitzerlandTaiwanThailandUnited Arab EmiratesFinlandSlovenia
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Recent Changes (Last 90 Days)
LOWJul 20, 2026NCT06500702lastUpdatePostDate: changed
LOWJul 20, 2026NCT06141473lastUpdatePostDate: changed
LOWJul 20, 2026NCT06500702lastUpdatePostDate: changed
LOWJul 20, 2026NCT06141473lastUpdatePostDate: changed
MEDIUMJun 29, 2026NCT06111586Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJun 29, 2026NCT06111586Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJun 23, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 23, 2026NCT07325292lastUpdatePostDate: changed
LOWJun 23, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 23, 2026NCT07325292lastUpdatePostDate: changed
LOWJun 8, 2026NCT06500702lastUpdatePostDate: changed
LOWJun 8, 2026NCT06500702lastUpdatePostDate: changed
LOWJun 8, 2026NCT06500702lastUpdatePostDate: changed
LOWJun 5, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 5, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 5, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 5, 2026NCT07412470lastUpdatePostDate: changed
LOWJun 2, 2026NCT06111586lastUpdatePostDate: changed
LOWJun 2, 2026NCT06111586lastUpdatePostDate: changed
LOWJun 2, 2026NCT06111586lastUpdatePostDate: changed