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SAR448851

Phase 2

Dementia, Alzheimer's Type | Small molecule | Neurology |Sanofi|Trials Updated: Sep 22, 2026

SAR448851 development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Jul 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment160

FDA Designations

No designations recorded

SAR448851 clinical trials

SAR448851 · 1 trial · 2 indications

Phase 2 1
NCT07688213A Study to Investigate the Safety and Effectiveness of SAR448851 in Participants With Early Alzheimer's DiseaseDementia, Alzheimer's Type
RECRUITING160 Analytics
PHASE2RECRUITING
A Study to Investigate the Safety and Effectiveness of SAR448851 in Participants With Early Alzheimer's Disease
Dementia, Alzheimer's TypeUnlock trial analytics

Study Endpoints

Primary Endpoints

Part A and optional dose 2 cohort: change from baseline to Week 48 in plasma p-tau217
From baseline to Week 48
Part B: Number of participants with treatment-emergent adverse events (TEAE), including ARIA-E and ARIA-H by brain MRI, laboratory assessments, vital sign measurements, ECGs and the C-SSRS
From Week 48 to Week 96

Number of participants experiencing at least one treatment-emergent adverse event (TEAE), including amyloid-related imaging abnormalities with edema (ARIA-E) and amyloid-related imaging abnormalities with hemosiderin (ARIA-H) by brain magnetic resonance imaging (MRI), laboratory assessments, vital sign measurements, electrocardiograms (ECGs) and the Columbia-Suicide Severity Rating Scale (C-SSRS)

Secondary Endpoints

Part A and optional dose 2 cohort: Change from baseline to Week 48 in plasma glial fibrillary acidic protein (GFAP) and cerebrospinal fluid (CSF) neurogranin (Ng)
From baseline to Week 48
Part A and optional dose 2 cohort: Change from baseline to Week 48 in brain amyloid plaque deposition as measured by amyloid positron emission tomography (PET)
From baseline to Week 48
Part A and optional dose 2 cohort: Change from baseline to Week 48 in CSF soluble triggering receptor expressed on myeloid cells 2 (sTREM2)
From baseline to Week 48
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SAR448851EXPERIMENTALParticipants will receive SAR448851 dose 1 or dose 2 oral daily for 48 weeks
PlaceboPLACEBO_COMPARATORParticipants will receive placebo oral daily for 48 weeks

Interventions

NameTypeDescription
SAR448851DRUGPharmaceutical form: Capsule Route of administration: Oral
PlaceboDRUGPharmaceutical form: Capsule Route of administration: Oral
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Eligibility Criteria

Age Range55 Years to 85 Years
SexALL
Healthy VolunteersNo
Study Sites11

Inclusion Criteria: * Participant must be 55 to 85 years (inclusive) of age, at the time of signing the informed consent. * Diagnosis of mild cognitive impairment (MCI) due to Alzheimer's disease (AD) (National Institute on Aging-Alzheimer's Association \[NIA-AA\] Stage 3) or mild AD dementia (NIA-...

Countries:United StatesAustraliaJapan
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Recent Changes (Last 90 Days)

LOWSep 22, 2026NCT07688213lastUpdatePostDate: changed
LOWSep 22, 2026NCT07688213lastUpdatePostDate: changed
LOWAug 11, 2026NCT07688213Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 11, 2026NCT07688213Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 11, 2026NCT07688213Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about SAR448851

What is SAR448851?

SAR448851 is an investigational small molecule drug being developed by Sanofi for the treatment of early Alzheimer's disease. It is currently in Phase 2 clinical development and has not been approved for any indication. The drug is being studied for its safety and effectiveness in participants with early Alzheimer's disease.

What is SAR448851 used for?

SAR448851 is being studied for the treatment of Dementia, Alzheimer's Type, specifically in participants with early Alzheimer's disease. It is an investigational therapy and is not approved for any use. The ongoing Phase 2 trial is evaluating its safety and effectiveness in this patient population.

Who is developing SAR448851?

SAR448851 is being developed by Sanofi, a global pharmaceutical company. Sanofi trades on the Nasdaq under the ticker symbol SNY. The company is responsible for the clinical development of this investigational small molecule for early Alzheimer's disease.

What phase is SAR448851 in?

SAR448851 is in Phase 2 clinical development. The ongoing trial is a randomized, double-blind, placebo-controlled study. It is currently recruiting participants and has not yet been completed. The drug remains investigational and has not received regulatory approval for any indication.

What clinical trials is SAR448851 in?

SAR448851 is being evaluated in a Phase 2 clinical trial identified as NCT07688213. The study is titled "A Study to Investigate the Safety and Effectiveness of SAR448851 in Participants With Early Alzheimer's Disease." It is currently recruiting and plans to enroll 160 participants across the United States, Australia, and Japan.

What are the details of the SAR448851 clinical trial?

The Phase 2 trial NCT07688213 is a randomized, double-blind, placebo-controlled study evaluating SAR448851 in participants with early Alzheimer's disease. It plans to enroll 160 participants aged 55 years and older, of all sexes, who are not healthy volunteers. The trial is recruiting in the United States, Australia, and Japan.