Recent Updates
Recently added Catalysts

SAR446268

Phase 1

Myotonic Dystrophy | Monoclonal antibody | Neurology |Sanofi|Trials Updated: Sep 21, 2026

SAR446268 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Feb 2025

SAR446268 target and mechanism

Molecular targetDMPK
Target classGene
ModalityMonoclonal antibody

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment32

FDA Designations

FAST_TRACKORPHAN_DRUG

SAR446268 clinical trials

SAR446268 · 1 trial · 1 indication

Phase 1 1
NCT06844214A Study to Investigate the Safety, Tolerability, and Efficacy of SAR446268, an Adeno-associated Viral Vector-mediated Gene Therapy in Participants Aged 10 to 55 Years of Age With Non-congenital Myotonic Dystrophy Type 1Myotonic Dystrophy
RECRUITING32 Analytics
PHASE1RECRUITING
A Study to Investigate the Safety, Tolerability, and Efficacy of SAR446268, an Adeno-associated Viral Vector-mediated Gene Therapy in Participants Aged 10 to 55 Years of Age With Non-congenital Myotonic Dystrophy Type 1
Myotonic DystrophyUnlock trial analytics

Study Endpoints

Primary Endpoints

Part A and Part B: Incidence of treatment-emergent adverse events (TEAEs) following SAR446268 administration
Baseline to Week 52

Number of TEAEs post-SAR446268 administration

Part B: Proportion of participants with at least 40% DMPK mRNA knockdown in muscle biopsy at Weeks 12 and 52 following SAR446268 administration
Weeks 12 and 52

Secondary Endpoints

Part A: Change in 10-meter walk-run test from baseline to Weeks 26 and 52 following SAR446268 administration
Baseline to Week 26 and 52
Part A: Change in myotonia from baseline to Weeks 26 and 52 following SAR446268 administration as measured by the hand opening time (middle finger)
Baseline to Week 26 and 52
Part A: Change in bilateral hand grip test from baseline to Weeks 26 and 52 following SAR446268 administration
Baseline to Week 26 and 52
Unlock Study Endpoints

Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SAR446268EXPERIMENTALParticipants will receive a single dose of SAR446268 on Day 1

Interventions

NameTypeDescription
SAR446268BIOLOGICALPharmaceutical form: Solution for infusion; Route of administration: IV infusion
Unlock Study Design Details

Eligibility Criteria

Age Range10 Years to 55 Years
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria: Participants are eligible to be included in the study only if all of the following criteria apply: * For Part A, participants must be 18 to 55 years of age inclusive, at the time of signing the informed consent. * For Part B, participants must be as follows: * 10 to 17 years...

Countries:United StatesArgentinaAustraliaCanadaIsraelUnited Kingdom
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWSep 21, 2026NCT06844214lastUpdatePostDate: changed
LOWSep 21, 2026NCT06844214lastUpdatePostDate: changed

Frequently asked questions about SAR446268

What is SAR446268?

SAR446268 is an investigational gene therapy being developed by Sanofi for myotonic dystrophy. It is designed to deliver an adeno-associated viral vector and is currently in Phase 1 clinical development. It has received Fast Track and Orphan Drug designations from the FDA.

What is SAR446268 used for in myotonic dystrophy?

SAR446268 is being studied for the treatment of non-congenital myotonic dystrophy type 1 in participants aged 10 to 55 years. The Phase 1 trial is evaluating its safety, tolerability, and efficacy in this patient population. It is not yet approved for any indication.

What does SAR446268 target?

SAR446268 targets DMPK, the gene associated with myotonic dystrophy type 1. It is an adeno-associated viral vector-mediated gene therapy, meaning it uses a viral vector to deliver genetic material aimed at the DMPK target. This gene-focused approach distinguishes it from conventional small molecule or antibody therapies.

Who is developing SAR446268?

SAR446268 is being developed by Sanofi, which trades under the ticker SNY. Sanofi is running the clinical program for this gene therapy candidate in myotonic dystrophy type 1. The company holds both Fast Track and Orphan Drug designations from the FDA for this asset.

What phase is SAR446268 in?

SAR446268 is in Phase 1 clinical development. It is an investigational therapy and has not been approved by the FDA. The single active trial is currently recruiting participants, and no trials have been completed to date.

What clinical trials is SAR446268 in?

SAR446268 is being evaluated in one clinical trial, NCT06844214, titled a study of SAR446268, an adeno-associated viral vector-mediated gene therapy, in participants aged 10 to 55 with non-congenital myotonic dystrophy type 1. The trial is Phase 1, currently recruiting, with an planned enrollment of 32 participants across the United States, Argentina, Australia, Canada, Israel, and the United Kingdom.