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PGN-EDODM1

Phase 2

Myotonic Dystrophy 1 | Small molecule | Other |PepGen Inc.|Last Updated: Apr 28, 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_CONTROLLEDDMC
Total Trials2
Total Enrollment72
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07220603An Open-Label Extension Study of PGN-EDODM1 in People With Myotonic Dystrophy Type 1 (FREEDOM-OLE)PHASE2 RECRUITING 48Dec 23, 2025Jan 1, 2029Mar 30, 20263 Canada
NCT06667453A Clinical Study of PGN-EDODM1 in People With Myotonic Dystrophy Type 1PHASE2 RECRUITING 24Dec 10, 2024Mar 1, 2027Apr 28, 20268 Canada, New Zealand +1
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Study Endpoints
Primary Endpoints
Safety and tolerability as assessed by number of participants with Adverse Events (AEs)
Baseline through Week 108
Secondary Endpoints
Maximum Observed Plasma Drug Concentration (Cmax) of PGN-EDODM1
Day 1 through Day 84
Time to Maximum Observed Plasma Drug Concentration (Tmax) of PGN-EDODM1
Day 1 through Day 84
Apparent Terminal Half-Life (t½) of PGN-EDODM1
Day 1 through Day 84
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PGN-EDODM1EXPERIMENTALParticipants will receive doses of PGN-EDODM1 once every 4 weeks (Q4W)
PlaceboPLACEBO_COMPARATORParticipants randomized to the placebo arm will receive doses of saline (0.9% NaCl), once every 4 weeks (Q4W) for 12 weeks
Interventions
NameTypeDescription
PGN-EDODM1DRUGAdministered by intravenous (IV) infusion
PlaceboOTHERAdministered by intravenous (IV) infusion
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Eligibility Criteria
Age Range16 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * Participant has completed a prior study with PGN-EDODM1 Exclusion Criteria: * Abnormal laboratory tests at screening considered clinically significant by the Investigator * Use of an investigational drug (other than PGN-EDODM1), device, or product, within 30 days or 5 half-l...

Countries:CanadaNew ZealandUnited Kingdom
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Recent Changes (Last 90 Days)
MEDIUMMay 26, 2026NCT06667453primaryCompletionDate: changed
LOWMay 26, 2026NCT07220603primaryCompletionDate: changed
LOWMay 24, 2026NCT06667453studyFirstPostDate: changed
LOWMay 24, 2026NCT07220603studyFirstPostDate: changed