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zeleciment basivarsen

Phase 3

Myotonic Dystrophy Type 1 (DM1) | Small molecule | Other |Dyne Therapeutics, Inc.|Last Updated: Jun 1, 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_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment150
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07486934Efficacy, Safety, and Tolerability of Zeleciment Basivarsen (DYNE-101) in Participants With Myotonic Dystrophy Type 1PHASE3 RECRUITING 150Apr 1, 2026Jan 1, 2029Jun 1, 20266 United States, Japan
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Study Endpoints
Primary Endpoints
5 Times Sit-To-Stand (5×STS) Time
Baseline, Week 49
Secondary Endpoints
Video Hand Opening Time (vHOT) [Middle Finger]
Baseline, Week 49
Quantitative Muscle Testing (QMT) Total
Baseline, Week 49
Clinician Global Impression of Change (CGI-C)
Week 49
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Placebo-Controlled Period: DYNE-101EXPERIMENTALParticipants will be randomized to receive DYNE-101, once every 8 weeks (Q8W) for up to 48 weeks.
Placebo-Controlled Period: PlaceboPLACEBO_COMPARATORParticipants will be randomized to receive DYNE-101 matching placebo, Q8W for up to 48 weeks.
Long-Term Extension Period: DYNE-101EXPERIMENTALParticipants who receive DYNE-101 in Placebo-Controlled Period will continue to received DYNE-101, Q8W for up to 24 weeks. Participants who received placebo in Placebo-Controlled Period will receive DYNE-101, Q8W for up to 24 weeks.
Interventions
NameTypeDescription
zeleciment basivarsen (DYNE-101)DRUGAdministered by IV infusion
PlaceboDRUGAdministered by IV infusion
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Eligibility Criteria
Age Range16 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: * Diagnosis of DM1 confirmed by molecular genetics with trinucleotide repeat size greater than (\>) 100. Historical results from clinical testing are acceptable. * Able to walk 10 meters and complete 5 times sit to stand independently (inserts or supports that don't go above the...

Countries:United StatesJapan
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Recent Changes (Last 90 Days)
LOWJun 2, 2026NCT07486934lastUpdatePostDate: changed
LOWJun 2, 2026NCT07486934lastUpdatePostDate: changed
LOWJun 2, 2026NCT07486934lastUpdatePostDate: changed
LOWMay 26, 2026NCT07486934primaryCompletionDate: changed
LOWMay 24, 2026NCT07486934studyFirstPostDate: changed