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C3391003 - A PHASE 3, MULTICENTER, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY TO EVALUATE THE SAFETY AND EFFICACY OF PF-06939926 FOR THE TREATMENT OF DUCHENNE MUSCULAR DYSTROPHY

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-508510-42-00
Acronym
C3391003
Enrollment
48
Registered
2024-07-10
Start date
2025-03-24
Completion date
Unknown
Last updated
2026-01-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

DUCHENNE MUSCULAR DYSTROPHY (DMD)

Brief summary

Change from Baseline at Week 52 in the NSAA total score.

Detailed description

Change from Baseline in percent normal mini-dystrophin expression level in biceps brachii muscle biopsies at Day 360 using a liquid chromatography mass spectrometry (LC-MS) assay., Change from Baseline in percent of muscle fibers expressing mini-dystrophin in biceps brachii muscle biopsies at Day 360 as assessed by immunofluorescence., Change from Baseline at Week 52 in serum CK concentration., Number of skills gained at Week 52 based on the individual items of the NSAA., Number of skills either improved or maintained at Week 52 based on the individual items of the NSAA., Change from Baseline at Week 52 in the 10 meter run/walk velocity., Change from Baseline at Week 52 in the rise from floor velocity., Change from Baseline at Week 52 in the Modified Pediatric Outcomes Data Collection Instrument (PODCI): Transfer and Basic Mobility Core Scale (Pediatric Parent)., Change from Baseline at Week 52 in the Modified PODCI: Sports and Physical Functioning Core Scale (Pediatric Parent).

Interventions

DRUGECULIZUMAB
DRUGPlacebo for PF-06939926

Sponsors

Pfizer Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
Male
Age
0 Years to 17 Years

Design outcomes

Primary

MeasureTime frame
Change from Baseline at Week 52 in the NSAA total score.

Secondary

MeasureTime frame
Change from Baseline in percent normal mini-dystrophin expression level in biceps brachii muscle biopsies at Day 360 using a liquid chromatography mass spectrometry (LC-MS) assay., Change from Baseline in percent of muscle fibers expressing mini-dystrophin in biceps brachii muscle biopsies at Day 360 as assessed by immunofluorescence., Change from Baseline at Week 52 in serum CK concentration., Number of skills gained at Week 52 based on the individual items of the NSAA., Number of skills either improved or maintained at Week 52 based on the individual items of the NSAA., Change from Baseline at Week 52 in the 10 meter run/walk velocity., Change from Baseline at Week 52 in the rise from floor velocity., Change from Baseline at Week 52 in the Modified Pediatric Outcomes Data Collection Instrument (PODCI): Transfer and Basic Mobility Core Scale (Pediatric Parent)., Change from Baseline at Week 52 in the Modified PODCI: Sports and Physical Functioning Core Scale (Pediatric Parent).

Countries

Belgium, France, Germany, Italy, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026