- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01540409
Efficacy, Safety, and Tolerability Rollover Study of Eteplirsen in Subjects With Duchenne Muscular Dystrophy
Open-Label, Multiple-Dose, Efficacy, Safety, and Tolerability Study of Eteplirsen in Subjects With Duchenne Muscular Dystrophy Who Participated in Study 4658-US-201
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This is an open label, multiple dose extension study to assess the ongoing efficacy, safety, and tolerability of weekly intravenous (IV) infusions of eteplirsen in DMD subjects who have successfully completed Study 4658-us 201.
Subjects will have the opportunity to enroll in this study during the last visit of Study 4658-us-201 (Week 28). Eligible subjects will receive once weekly IV infusions of eteplirsen (50 or 30 mg/kg) for an additional 212 weeks. Subjects will receive the same dose of eteplirsen they received in Study 4658-us-201. Subjects will thereafter continue to receive once weekly IV infusions of eteplirsen for up to an additional 72 week period (through week 284). If commercial eteplirsen becomes available during this additional 72 week period, participation in the study will be discontinued as subjects transition to commercial eteplirsen.
Safety, efficacy, pharmacokinetic (PK), and biomarker assessments will be performed at scheduled visits; adverse events (AEs) and concomitant medications and therapies will be continuously monitored.
If review of data from this open label study suggests that continued treatment with eteplirsen is warranted, this study may be extended by protocol amendment or subjects who successfully complete this study may have the opportunity to participate in a separate follow on, open label eteplirsen study.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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California
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Long Beach, California, United States, 90806
- Miller Children's Hospital
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Florida
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Gainesville, Florida, United States, 32610
- University of Florida Clinical Research Center
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Illinois
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Chicago, Illinois, United States, 60612
- Rush University Medical Center
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Massachusetts
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Boston, Massachusetts, United States, 02114
- Massachusetts General Hospital
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Missouri
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Saint Louis, Missouri, United States, 63110
- Washington University Medical School
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New York
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Liverpool, New York, United States, 13088
- Summerwood Pediatrics/Infusacare Medical Services
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North Carolina
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Charlotte, North Carolina, United States, 28203
- Levine Children's Hospital
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Ohio
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Columbus, Ohio, United States, 43205
- Nationwide Children's Hospital
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Pennsylvania
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Pittsburgh, Pennsylvania, United States, 15224
- Children's Hospital of Pittsburgh of UPMC
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Virginia
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Norfolk, Virginia, United States, 23510
- Children's Specialty Group, Pediatric Neurology
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Wisconsin
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Osceola, Wisconsin, United States, 54020
- Osceola Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
A subject must meet all of the following criteria to be eligible for this study.
- The subject and/or their parent/legal guardian are willing and able to provide signed informed consent.
- The subject has successfully completed 28 weeks of treatment in Study 4658-US-201.
- The subject has a parent(s) or legal guardian(s) who is able to understand and comply with all of the study procedure requirements.
Exclusion Criteria:
A subject who meets any of the following criteria will be excluded from this study.
1. The subject has a prior or ongoing medical condition that, in the Investigator's opinion, could adversely affect the safety of the subject or make it unlikely that the course of treatment or follow-up would be completed or impair the assessment of study results.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: AVI-4658 (Eteplirsen)
Multiple-Dose Extension Study
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Eteplirsen will be administered once weekly via an IV infusion.
There are two treatment groups, 30 mg/kg and 50 mg/kg.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in the 6 Minute Walk Test (6MWT) at Week 240
Time Frame: Parent Baseline and Week 240
|
This study used a modified version of the 6MWT test procedure described in American Thoracic Society (ATS) 2002 guidelines, specifically adapted for patients with Duchenne muscular dystrophy.
The participant was asked to walk a set course of 25 meters for 6 minutes (timed) and the distance walked in meters was recorded.
Increases from baseline in 6MWT distance are indicative of improvement and decreases from baseline indicate worsening.
Baseline here corresponds to the baseline in the parent study (4658-us-201, NCT01396239).
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Parent Baseline and Week 240
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Change From Baseline in the Percentage of Dystrophin Positive Fibers (PDPF) at Week 48
Time Frame: Parent Baseline and Week 48
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Dystrophin expression as assessed by percent dystrophin positive fibers was measured by immunohistochemistry (IHC) technique using primary anti-dystrophin antibody.
Percent change from baseline is the arithmetic difference of the treatment time point minus baseline divided by baseline calculated for individual subjects.
Baseline here corresponds to the baseline in the parent study (4658-us-201, NCT01396239).
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Parent Baseline and Week 48
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Collaborators and Investigators
Sponsor
Investigators
- Study Director: Medical Director, Sarepta Therapeutics, Inc.
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 4658-us-202
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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Kevin FlaniganSarepta Therapeutics, Inc.Completed
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Imperial College LondonSarepta Therapeutics, Inc.; Department of Health, United KingdomCompletedDuchenne Muscular DystrophyUnited Kingdom