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SAR446959

Phase 1

Osteoarthritis | Small molecule | Musculoskeletal |Sanofi|Last Updated: Jan 12, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment32
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06704932A First-in-human Study to Investigate Safety and Tolerability of SAR446959 in Participants With Osteoarthritis of the KneePHASE1 COMPLETED 32Nov 20, 2024Dec 18, 2025Jan 12, 20261 Germany
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Study Endpoints
Primary Endpoints
Number of participants with adverse events (AEs)/treatment emergent adverse events (TEAEs) including injection site reactions
Day 1 up to the end-of-study visit (Day 85)

Assessment of adverse events (AE) / treatment-emergent adverse events (TEAE).

Number of participants with potentially clinically significant abnormalities (PCSAs)
Day 1 up to the end-of-study visit (Day 85)

Count of PCSAs and descriptive statistics will be done on clinical laboratory, vital signs and 12-Lead ECG parameters.

Secondary Endpoints
Pharmacokinetic (PK) parameter of SAR446959: Cmax
Day 1 up to the follow up visit (Day 169)
PK parameter of SAR446959: AUClast
Day 1 up to the follow up visit (Day 169)
PK parameter of SAR446959: AUC
Day 1 up to the follow up visit (Day 169)
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
SAR446959EXPERIMENTALParticipants will receive a single intra-articular dose of SAR446959 on Day 1
PlaceboPLACEBO_COMPARATORParticipants will receive a single intra-articular dose of placebo on Day 1. The injection volume of the placebo will be the same as the injection volume for SAR446959 in the corresponding dose level cohort.
Interventions
NameTypeDescription
SAR446959DRUGPharmaceutical form:solution for injection-Route of administration:Intra-articular injection
PlaceboDRUGPharmaceutical form:solution for injection-Route of administration:Intra-articular injection
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Eligibility Criteria
Age Range45 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: Participants must have a diagnosis of primary knee osteoarthritis, based on the American College of Rheumatology Clinical criteria using history and physical examination in the index knee * Participants must have index knee OA symptoms since at least 6 months before screening. *...

Countries:Germany
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