E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Nonsense mutation dystrophinopathy |
|
E.1.1.1 | Medical condition in easily understood language |
Duchenne and Becker muscular dystrophy |
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E.1.1.2 | Therapeutic area | Diseases [C] - Musculoskeletal Diseases [C05] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 17.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10013801 |
E.1.2 | Term | Duchenne muscular dystrophy |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
|
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 17.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10059117 |
E.1.2 | Term | Becker's muscular dystrophy |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the long-term safety of ataluren in boys with nonsense mutation dystrophinopathy, as determined by adverse events and laboratory abnormalities. |
|
E.2.2 | Secondary objectives of the trial |
Physical:
• To determine the effect of ataluren on ambulation in subjects who are ambulatory
• To evaluate the effect of ataluren on proximal muscle function in subjects who are able to perform timed function tests
• To evaluate the effect of ataluren on physical function in subjects who are able to perform the North Star Ambulatory Assessment
• To evaluate the effect of ataluren on upper limb function
Pulmonary function:
• To evaluate the effect of ataluren on pulmonary function
Patient-reported outcomes:
• To determine the effect of ataluren on health-related quality of life (HRQL) as reported by subjects and parents/caregivers
• To assess the effect of ataluren on activities of daily living
Exposure:
• To assess long-term ataluren plasma exposure |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Completion of study treatment in the previous Phase 3, double-blind study protocol (Protocol PTC124-GD-020-DMD).
2. Evidence of signed and dated informed consent/assent document(s) indicating that the subject (and/or his parent/legal guardian) has been informed of all pertinent aspects of the trial.
3. In subjects who are sexually active, willingness to abstain from sexual intercourse or employ a barrier or medical method of contraception during the study drug administration and 6-week follow-up period.
4. Willingness and ability to comply with scheduled visits, ataluren administration plan, study procedures, laboratory tests, and study restrictions. |
|
E.4 | Principal exclusion criteria |
1. Known hypersensitivity to any of the ingredients or excipients of the study drug (Litesse® UltraTM [refined polydextrose], polyethylene glycol 3350, Lutrol® micro F127 [poloxamer 407], mannitol 25C, crospovidone XL10, hydroxyethyl cellulose, vanilla, Cab-O-Sil® M5P [colloidal silica], magnesium stearate).
2. Ongoing participation in any other therapeutic clinical trial.
3. Prior or ongoing medical condition (eg, concomitant illness, psychiatric condition, behavioral disorder, alcoholism, drug abuse), medical history, physical findings, ECG findings, or laboratory abnormality that, in the investigator’s opinion, could adversely affect
the safety of the patient, makes it unlikely that the course of treatment or follow-up would be completed, or could impair the assessment of study results. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Safety profile characterized by type, frequency, severity, timing, and relationship to ataluren of any adverse events or laboratory abnormalities. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Screening visit, every 12 weeks up to 6 weeks post-treatment. |
|
E.5.2 | Secondary end point(s) |
Physical:
1. Change in ambulation as measured by the 6MWT
2. Change in proximal muscle function as assessed by timed function tests (time to rise from supine position, time to run 10 meters, and time to climb/descend 4 stairs)
3. Change in physical function as assessed by the North Star Ambulatory Assessment
4. Change in motor performance of the upper limb as measured by the Performance Upper Limb (PUL)
Pulmonary function:
5. Change in pulmonary function as measured by spirometry (eg. FVC, FEV1)
Patient-reported outcomes:
6. Change in patient- and parent/caregiver-reported HRQL as measured by the PODCI Transfer/Basic Mobility and Sports/Physical Functioning scores
7. Change in patient and parent/caregiver reported activities of daily living
Exposure:
8. Pre-dose ataluren plasma concentrations prior to morning ataluren administration at each clinic visit as assessed by a validated bioanalytical method
Safety:
9. Change from baseline in other safety parameters (eg, vital signs) |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
1, 2, 3, 4, 6, 7, 8: Screening visit and every 12 weeks up to week 96
5: Screening visit, at weeks 24, 48, 72 and 96
9: Screening visit, every 12 weeks up to 6 weeks post-treatment |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | Information not present in EudraCT |
E.8.1.2 | Open | Information not present in EudraCT |
E.8.1.3 | Single blind | Information not present in EudraCT |
E.8.1.4 | Double blind | Information not present in EudraCT |
E.8.1.5 | Parallel group | Information not present in EudraCT |
E.8.1.6 | Cross over | Information not present in EudraCT |
E.8.1.7 | Other | Information not present in EudraCT |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 4 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 23 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Brazil |
Canada |
Chile |
Israel |
Korea, Republic of |
Switzerland |
Turkey |
United States |
|
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 10 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 8 |
E.8.9.2 | In all countries concerned by the trial days | 23 |