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Phase III Study With Idebenone in Patients With Duchenne Muscular Dystrophy (SIDEROS-E)

Phase 3
Terminated
Conditions
Duchenne Muscular Dystrophy
Interventions
Registration Number
NCT03603288
Lead Sponsor
Santhera Pharmaceuticals
Brief Summary

The purpose of the study is to assess the long-term safety and efficacy of idebenone in patients with Duchenne muscular dystrophy (DMD) who completed the SIDEROS study.

Detailed Description

The study is an open-label, single-group, multi-center extension study in patients with DMD receiving glucocorticoid steroids who participated in the SIDEROS study and who meet all the inclusion criteria and none of the exclusion criteria for this extension study.

The study consists of 4 study visits scheduled every 6 months (Visit 1/Baseline, Visit 2/Week 26, Visit 3/ Week 52 and Visit 4/ Week 78), and a follow-up visit 4 weeks after treatment discontinuation. Visit 8/Week 78 in SIDEROS study is also SIDEROS-E Visit 1/Baseline.

Recruitment & Eligibility

Status
TERMINATED
Sex
Male
Target Recruitment
161
Inclusion Criteria
  1. Completion of the SIDEROS study at Visit 8/ Week 78
  2. Signed and dated Informed Consent Form for SIDEROS-E
Exclusion Criteria
  1. Patients who discontinued SIDEROS study prematurely (i.e. did not attend all visits from V1 to V8)
  2. Safety, tolerability or other issues arising during the course of the SIDEROS study which in the opinion of the Investigator may put the patient at significant risk or may interfere significantly with the patient's participation in the SIDEROS-E study
  3. Use of any investigational drug other than the study medication

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
idebenone 150 mg film-coated tabletsidebenone 150 mg film-coated tablets900 mg idebenone/day (2 tablets to be taken 3 times a day with meal)
Primary Outcome Measures
NameTimeMethod
Number of patients with premature discontinuations of study treatment due to adverse events.From baseline until visit 4 (week 78)

To assess the long-term safety of idebenone in DMD patients who completed the SIDEROS study.

Number of patients with abnormal vital signs.4 weeks after discontinuation of treatment

To assess the long-term safety of idebenone in DMD patients who completed the SIDEROS study.

Incidence and severity of adverse events, as per ICH Topic E2A4 weeks after discontinuation of treatment

To assess the long-term safety of idebenone in DMD patients who completed the SIDEROS study.

Number of patients with abnormal safety laboratory parameters.4 weeks after discontinuation of treatment

To assess the long-term safety of idebenone in DMD patients who completed the SIDEROS study.

Number of patients with abnormal ECG.From baseline until visit 4 (week 78)

To assess the long-term safety of idebenone in DMD patients who completed the SIDEROS study.

Secondary Outcome Measures
NameTimeMethod
Change from Baseline in Peak Expiratory Flow (PEF) as percent of predicted (PEF%p)From baseline until visit 4 (week 78)

To describe the long-term evolution of respiratory function in idebenone-treated DMD patients who completed the SIDEROS study.

Change from Baseline in Forced Expiratory Volume in 1 second (FEV1) as percent of predicted (FEV1%p)From baseline until visit 4 (week 78)

To describe the long-term evolution of respiratory function in idebenone-treated DMD patients who completed the SIDEROS study.

Change from Baseline in Forced Vital Capacity (FVC) as percent of predicted (FVC%p).From baseline until visit 4 (week 78)

To describe the long-term evolution of respiratory function in idebenone-treated DMD patients who completed the SIDEROS study.

Trial Locations

Locations (39)

Gillette Children's Specialty Healthcare

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Saint Paul, Minnesota, United States

Banner University of Arizona Medical Center

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Tucson, Arizona, United States

Children's Hospital of Los Angeles

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Los Angeles, California, United States

University of Alabama - Birmingham, Child Health Research

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Birmingham, Alabama, United States

Children's Hospital Boston, Harvard Medical School, Department of Neurology

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Boston, Massachusetts, United States

Center for Integrative Rare Disease Research, Rare Disease Research, LLC

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Atlanta, Georgia, United States

UC Davis Department of Physical Medicine and Rehabilitation

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Sacramento, California, United States

Johns Hopkins University

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Baltimore, Maryland, United States

University of Iowa, Department of Pediatrics

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Iowa City, Iowa, United States

MetroHealth Medical Center

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Cleveland, Ohio, United States

Neurosciences Institute, Neurology - Charlotte Carolinas Healthcare System

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Charlotte, North Carolina, United States

Cincinnati Children's Hospital

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Cincinnati, Ohio, United States

Hรดpital Hรดtel Dieu, Service Explorations Fonctionnelles - Centre de Rรฉfรฉrence de Maladies Neuromusculaires rares

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Nantes, France

Hรดpital des enfants, Pรฉdiatrie Neurologie et infectiologie Pรดle enfants

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Toulouse, France

I-Motion - Plateforme d'essais cliniques pรฉdiatriques Hรดpital Armand Trousseau bรขtiment Lemariey porte 20, 2รจme รฉtage

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Paris, France

University Medical Center Hamburg - Eppendorf, Department of Paediatrics

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Hamburg, Germany

U.O. Malattie Neuromuscolari, Istituto Giannina Gaslini

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Genova, Italy

Scientific Coordinator Nemo Sud Clinical CenterAOU Policlinico "G. Martino"

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Messina, Italy

Fondazione IRCCS Eugenio Medea

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Bosisio Parini, Italy

Centro Clinico NEMO (NEuroMuscular Omnicentre), Niguarda Hospital

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Milano, Italy

Servizio di Cardiomiologia e Genetica Medica AOU Universitร  degli Studi della Campania Luigi Vanvitelli

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Napoli, Italy

Reparto Di Neurologia dell'Osperdale Di Padova

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Padova, Italy

U.O.C. Neuropsichiatria Infantile

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Roma, Italy

Hospital Sant Joan de Deu Neuropediatra, Unidad de patologia nueromuscular, Servicio de Neurologia

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Barcelona, Spain

Hospital La Fe de Valencia Avinguda de Fernando Abril Martorell Servicio de Neurologia Torre D

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Valencia, Spain

Center for neuromuscular disorders, Universitรคts-Kinderspital beider Basel (UKBB)

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Basel, Switzerland

Leeds Teaching Hospital NHS Trust

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Leeds, United Kingdom

UCL, National Hospital for Neurology and Neurosurgery

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London, United Kingdom

Great Ormond Street Hospital for Children

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London, United Kingdom

Clinical Research Facility Level 6 Leazes Wing Royal Victoria Infirmary

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Newcastle Upon Tyne, United Kingdom

Robert Jones and Agnes Hunt Orthopaedic Hospital

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Oswestry, United Kingdom

CHR Citadelle

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Liรจge, Belgium

Dipartimento di Clinica Neurologica e Psichiatrica dell'Eta Evolutiva della Fondazione IRCCS "C. Mondino" di Pavia

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Pavia, Italy

Gottfried von Preyer'sches Kinderspital

๐Ÿ‡ฆ๐Ÿ‡น

Vienna, Austria

University Hospital Leuven

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Leuven, Belgium

Service de neuropรฉdiatrie Pรดle Pรฉdiatrie CHRU de Lille - Hรดpital Jeanne de Flandre

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Lille, France

Center for neuromuscular disorders, Dr. v. Haunersche Kinderklinik, Universitรคt Mรผnchen

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Mรผnchen, Germany

CHRU de Montpellier - Hรดpital Gui de Chauliac, Dรฉpartement de pรฉdiatrie - neuropรฉdiatrie

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Montpellier, France

Children's Hospital of Philadelphia, Division of Pulmonology

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Philadelphia, Pennsylvania, United States

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