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Study identifier: NCT06844214 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

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

Condition: Myotonic Dystrophy  ·  Sponsor: Sanofi

PhasePhase 1/Phase 2
Planned participants32
Who can joinAll sexes, 10 Years to 55 Years
Healthy volunteersNo

About this study

This is a Phase 1/Phase 2 open-label single arm, multicenter, and multinational study with SAR446268 for treatment of male and female participants 10 to 55 years old with non-congenital myotonic dystrophy (DM) type 1 (DM1). The purpose of this study is to evaluate the safety and efficacy of SAR446268 in knocking down dystrophia myotonica protein kinase (DMPK) messenger ribonucleic acid (mRNA) levels and improving neuromuscular function in DM1 participants receiving a single intravenous (IV) administration of SAR446268. The study consists of a dose escalation part (Part A) during which single ascending doses of SAR446268 will be evaluated in 3 distinct cohorts and an optional fourth dose cohort. Once a safe and effective dose is identified, additional participants will be treated in Part B, the dose expansion phase of the study. The study duration will be 112 weeks (approximately 2 years) for each participant in Parts A and B respectively and includes an optional pre-screening period, approximately 8-week screening phase and a 104-week follow-up period post-SAR446268 administration.

This description comes directly from the study's public registry record.

Talk to the study team

Trial Transparency email recommended (Toll free for US & Canada)  ·  800-633-1610  ·  contact-us@sanofi.com

Always discuss trial participation with your own doctor first.

Locations (9)

University of Florida, 2004 Mowry Road - Site Number: 8400005Gainesville, Florida, United StatesRecruiting
University of South Florida - Neuromuscular Research, 13330 USF Laurel Drive - Site Number: 8400001Tampa, Florida, United StatesRecruiting
Columbia University Medical Center - Neurological Institute, 710 W. 168th, 2nd floor, suite 204 - Site Number : 8400003New York, New York, United StatesRecruiting
Virginia Commonwealth University Medical Center- Site Number : 8400006Richmond, Virginia, United StatesRecruiting
Hospital Italiano de Buenos Aires, Juan Domingo Peron 4190 - Site Number: 0320001Buenos Aires, ArgentinaRecruiting
Investigational Site Number : 0360001Brisbane, Queensland, AustraliaRecruiting
The Montreal Neurological Institute and Hospital, 3801 rue University - Site Number: 1240001Montreal, Quebec, CanadaRecruiting
Investigational Site Number : 3760002Ramat Gan, IsraelRecruiting
Investigational Site Number : 8260002Newcastle upon Tyne, United KingdomRecruiting

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Source record: clinicaltrials.gov/study/NCT06844214