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Open-Label Extension Study of WVE-N531 in Patients With Duchenne Muscular Dystrophy

An Open-Label Extension Study to Investigate the Long-term Safety, Tolerability, Pharmacokinetics, and Efficacy of WVE-N531 in Patients With Duchenne Muscular Dystrophy Who Participated in Another Study of WVE-N531

Status
Enrolling by invitation
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07209332
Enrollment
175
Registered
2025-10-07
Start date
2025-12-28
Completion date
2029-03-01
Last updated
2026-03-06

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

Conditions

Duchenne Muscular Dystrophy

Brief summary

This is a Phase 2 open-label extension (OLE) study to evaluate the long-term safety, tolerability, efficacy, pharmacokinetics, and the pharmacodynamics (PD) through potential exploratory biomarker(s) of intravenous (IV) WVE-N531 in patients with DMD who participated in another study of WVE-N531. All patients will have rolled over from a previous study of WVE-N531.

Detailed description

The study will include up to 175 patients from planned and ongoing WVE-N531 studies globally. All patients will continue to receive 10 mg/kg WVE-N531 IV every 4 weeks (Q4W), through Week 96. Safety monitoring will continue for approximately 11 months after the final dose. The primary objective of the study is to evaluate the long-term safety and tolerability of WVE-N531.

Interventions

WVE-N531 is an antisense oligonucleotide (ASO)

Sponsors

Wave Life Sciences Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Healthy volunteers
No

Inclusion criteria

1. Participated in a prior study of WVE-N531 and has not experienced any significant toxicities due to WVE-N531 or significant clinical deterioration of general health since the last dose or early discontinuation visit. 2. Of note: if there will be a greater than 31-day gap between the last dose on the prior study and the FD on this study, the case should be discussed between the Investigator and Medical Monitor.

Exclusion criteria

1. Any clinically significant medical finding or change during or following participation in the prior WVE-N531 study, other than DMD that, in the judgment of the Investigator, would affect the potential safety of the patient to receive WVE-N531 or interfere with participation in the study. 2. Any recreational substance use (including prescribed cannabinoids), with the exception of alcohol and nicotine, irrespective of legality, within 2 months prior to FD and/or unwilling to refrain from such use for the duration of the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with treatment related adverse events as assessed by the following parameters:Time Frame: Week 0 through Week 96* Complete Physical examination, including height and weight * Vital Signs (via blood pressure, temperature and pulse) * Safety Laboratory Tests (including complete blood cell count, urinalysis and clinical chemistry) * ECG (12- Lead single tracing) * ECHO (including left ventricular ejection fraction) * Pulmonary Function Tests (including Peak Flow Rate, Cough Peak Flow, Forced Vital Capacity and Maximum Inspiratory Pressure)

Secondary

MeasureTime frameDescription
North Star Ambulatory Assessment (NSAA) (Version 2.0) composite score, each item assessed using a 3 point scale, including:At baseline Week 0 through Week 96* Time to stand (measured in seconds ) * Timed 10-meter walk/run (measured in seconds) * Four-stair climb time (measured in time to climb 4 stairs in seconds)
Performance of the Upper Limb (PUL) (Version 2.0) (measured by total score and score of high level shoulder dimension, Mid-level Elbow Dimension, Distal Wrist and Hand Dimension)At baseline Week 0 through Week 96
Stride Velocity 95th Centile (SV95C) (collected in 3 consecutive weeks)At baseline Week 0 through Week 96
Upper limb proximal strength (assessed by handheld myometer measured in Kilograms)At baseline Week 0 through Week 96

Countries

Jordan, United Kingdom

Contacts

STUDY_DIRECTORMedical Director, MD

Wave Life Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026