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PGN-EDODM1 for infusion

Phase 1

Myotonic Dystrophy 1 | Small molecule | Rare Disease |PepGen Inc.|Trials Updated: Feb 13, 2026

PGN-EDODM1 for infusion development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Jan 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment24

FDA Designations

ORPHAN_DRUGFAST_TRACK

PGN-EDODM1 for infusion clinical trials

PGN-EDODM1 for infusion · 1 trial · 1 indication

Phase 1 1
NCT06204809Safety, Tolerability, PK, and PD Study of PGN-EDODM1 in Participants With Myotonic Dystrophy Type 1Myotonic Dystrophy 1
COMPLETED24 Analytics
PHASE1COMPLETED
Safety, Tolerability, PK, and PD Study of PGN-EDODM1 in Participants With Myotonic Dystrophy Type 1
Myotonic Dystrophy 1Unlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with Adverse Events, Serious Adverse Events, with abnormal Clinical Laboratory tests, abnormal ECGs, and abnormal Vital Signs
Baseline to Week 16

Secondary Endpoints

Maximum Observed Plasma Drug Concentration (Cmax) of PGN-EDODM1
Baseline up to Day 3
Time to Maximum Observed Plasma Drug Concentration (Tmax) of PGN-EDODM1
Baseline up to Day 3
Apparent Terminal Half-Life (t½) of PGN-EDODM1
Baseline up to Day 3
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PGN-EDODM1EXPERIMENTALPGN-EDODM1 for infusion
PlaceboPLACEBO_COMPARATOR0.9% NaCl

Interventions

NameTypeDescription
PGN-EDODM1 for infusionDRUGSingle dose of PGN-EDODM1 by intravenous (IV) infusion
PlaceboOTHERAdministered by IV infusion
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Eligibility Criteria

Age Range18 Years to 60 Years
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion Criteria: * Confirmed diagnosis of DM1, as defined as having a repeat sequence in the DMPK gene with at least 100 CTG repeats * Medical Research Council (MRC) score of ≥ Grade 4- in bilateral tibialis anterior (TA) muscles (the ability to move through full range of motion and hold against...

Countries:United StatesCanadaUnited Kingdom
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Frequently asked questions about PGN-EDODM1 for infusion

What is PGN-EDODM1 used for?

PGN-EDODM1 is an investigational therapy being developed for the treatment of myotonic dystrophy type 1, a rare genetic disorder. It is administered by infusion. The program is in Phase 1 clinical development, and the drug has not been approved for any indication.

Who is developing PGN-EDODM1?

PGN-EDODM1 is being developed by PepGen Inc., which trades under the ticker symbol PEPG. PepGen is the sponsor of the clinical program evaluating the drug in myotonic dystrophy type 1.

What phase is PGN-EDODM1 in?

PGN-EDODM1 is in Phase 1 clinical development. Its single Phase 1 trial, NCT06204809, has been completed. The drug is investigational and has not received FDA approval for any indication.

What clinical trials is PGN-EDODM1 in?

PGN-EDODM1 has been studied in one Phase 1 trial, NCT06204809, titled a Safety, Tolerability, PK, and PD Study of PGN-EDODM1 in Participants With Myotonic Dystrophy Type 1. The trial enrolled 24 participants across the United States, Canada, and the United Kingdom and is now completed.

What FDA designations has PGN-EDODM1 received?

PGN-EDODM1 has received two FDA designations: Orphan Drug and Fast Track. These designations relate to its development for myotonic dystrophy type 1. The drug remains investigational and has not been approved by the FDA.

How was the Phase 1 trial of PGN-EDODM1 designed?

The Phase 1 trial NCT06204809 was a randomized, double-blind, placebo-controlled study of PGN-EDODM1 in adults with myotonic dystrophy type 1. It enrolled 24 participants aged 18 years and older, across the United States, Canada, and the United Kingdom, and evaluated safety, tolerability, pharmacokinetics, and pharmacodynamics.