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A Phase 3 study of Viltolarsen in boys with Duchenne Muscular Dystrophy (DMD)

A Phase 3, Multi-center, Open-label Extension Study to Assess the Safety and Efficacy of Viltolarsen in Ambulant Boys with Duchenne Muscular Dystrophy (DMD) - RACER-53X

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-000122-10-IT
Enrollment
74
Registered
2021-06-08
Start date
2021-04-26
Completion date
Unknown
Last updated
2021-08-30

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

Conditions

Duchenne Muscular Dystrophy (DMD) MedDRA version: 20.0 Level: PT Classification code 10013801 Term: Duchenne muscular dystrophy System Organ Class: 10010331 - Congenital, familial and genetic disorders

Interventions

Sponsors

NS Pharma, Inc
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. Patient has completed the NS-065/NCNP-01-301 study; 2. Patient's parent(s) or legal guardian(s) has (have) provided written informed consent and Health Insurance Portability and Accountability Act authorization, where applicable, prior to any study-related procedures; patients will be asked to give written or verbal assent according to local requirements; 3. Patient and parent(s)/guardian(s) are willing and able to comply with scheduled visits, investigational product (IP) administration plan, and study procedures. Are the trial subjects under 18? yes Number of subjects for this age range: F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Patient had an adverse event in Study NS-065/NCNP-01-301 that, in the opinion of the investigator and/or the sponsor, precludes safe use of viltolarsen for the patient in this study; 2. Patient had a treatment which was made for the purpose of dystrophin or dystrophin-related protein induction after completion of Study NS-065/NCNP-01-301; 3. Patient took any other investigational drug(s) during or after completion of Study NS-065/NCNP-01-301; 4. Patient is judged by the investigator and/or the sponsor not to be appropriate to participate in the extension study for any reason.

Design outcomes

Primary

MeasureTime frame
Secondary Objective: Secondary Objective: To compare the efficacy of viltolarsen administered IV at weekly doses of 80 mg/kg in boys who have completed the NS-065/NCNP-01-301 study over a 96-week treatment period versus natural history controls using strength and endurance outcomes. Exploratory Objectives: - To evaluate health-related quality of life impact of viltolarsen treatment on patient's DMD - To evaluate preservation of ambulation of patients with DMD;Primary end point(s): - Vital signs - Physical examination - Clinical laboratory tests o Hematology and clinical chemistry o Urinalysis o Urine cytology - Antibodies to dystrophin and viltolarsen - 12-lead electrocardiogram (ECG) - Renal ultrasound - Treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs);Timepoint(s) of evaluation of this end point: At 96 weeks treatment;Main Objective: To evaluate the safety and tolerability of viltolarsen administered intravenously (IV) at weekly doses of 80 mg/kg in boys who have completed the NS-065/NCNP-01-301 study

Secondary

MeasureTime frame
Secondary end point(s): Secondary: - Time to Stand Test (TTSTAND) - Time to Run/Walk 10 Meters Test (TTRW) - Six-minute Walk Test (6MWT) - North Star Ambulatory Assessment (NSAA) - Time to Climb 4 Stairs Test (TTCLIMB) - Quantitative muscle strength measured by hand-held dynamometer (elbow extension, elbow flexion, knee extension, and knee flexion on the dominant side only) Exploratory: - Pediatric Outcome Data Collection Instrument (PODCI) - Personal Adjustment and Role Skills Scale, 3rd edition (PARS III) Questionnaire - Loss of ambulation;Timepoint(s) of evaluation of this end point: At 96 weeks treatment

Countries

Australia, Canada, Chile, China, Greece, Hong Kong, Italy, Japan, Korea, Republic of, Mexico, Netherlands, New Zealand, Norway, Russian Federation, Spain, Taiwan, Turkey, Ukraine, United Kingdom, United States

Contacts

Public ContactKyle Haas

Medpace

regsubmissions@medpace.com+151357999111270

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026