E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The clinical trial will be conducted on patients with Mucopolysaccharidosis Type VI. MPS VI is characterized by growth retardation, corneal clouding, cardiac valve disease, organomegaly, skeletal dysplasia, without central nervous system involvement |
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E.1.1.1 | Medical condition in easily understood language |
Mucopolysaccharidosis type VI,Lysosomal Storage Disorder |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
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 safety of the drug |
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E.2.2 | Secondary objectives of the trial |
To investigate the efficacy of the drug |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Subjects must have a documented biochemical and molecular diagnosis of MPS VI. 2. Subjects must be 4 years old or older. 3. Subjects should have received Enzyme Replacement Therapy (ERT) for at least 12 months before enrolment, and should continue to receive treatment until 7-14 days before IMP administration. 4. Documented informed consent; willingness to adhere to protocol and required long-term follow-up as evidenced by written informed consent.
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E.4 | Principal exclusion criteria |
1.Subjects unable or unwilling to meet requirements of the study. 2.History of severe anaphylactoid reaction to Naglazyme in subjects receiving ERT that could affect the safety (severe reaction is meant to be an event with respiratory impairment that is lifethreatening). 3.Serum AST or ALT above the upper limit of normal range at the baseline evaluations (Baseline 2, -5 days). 4. Detectable serum neutralizing antibodies (NAB) against AAV8 vector. |
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E.5 End points |
E.5.1 | Primary end point(s) |
• Overall short-term and long-term safety and tolerability measured by recording of adverse events, physical examination including vital signs, laboratory tests and liver ultrasound. • Inflammation of the liver, as shown by an elevation in transaminases. • Kidney fuction by monitoring of parameters: creatinine, albumin, total protein and BUN • Presence of immune-complexes by monitoring of C3 and C4 complement protein level
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
The safety endpoints will be monitored in the days immediately following the infusion of the drug (short-term monitoring) and during the following weeks, months and years (monitoring long-term). L 'outcome of efficacy will be evaluated during the three days post treatment and at 4 and 9 months, a year, a year and a half, two years, two and a half years and three years. |
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E.5.2 | Secondary end point(s) |
•Leukocyte ARSB levels (enzyme activity), •Endurance measured by 6-minute walk test (6MWT) and 3-minute stair climb test (3MSCT), •Forced vital capacity (FVC) and forced expiratory volume at 1 minute (FEV1) in cooperative subjects. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
•Leukocyte ARSB levels (enzyme activity) measured at screening; the day before treatment: 3 weeks post-treatment; 10 weeks post-treatment; 14 weeks post-treatment ; 4,9,12 months post-trattamento1.5, 2, 2.5, 3 years post-treatment •Endurance measured by 6-minute walk test (6MWT) and 3-minute stair climb test (3MSCT) measured at baseline1; 2 days pretreatment; 4,9,12 months post-treatment; 1.5, 2, 2.5, 3 years post-trattamento, •Forced vital capacity (FVC) and forced expiratory volume at 1 minute (FEV1) in cooperative subjects measured at baseline1; 1 o 2 days pre-treatment; 4,9,12 months post-treatment; 1.5, 2, 2.5, 3 years 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 | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
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) | Yes |
E.7.1.1 | First administration to humans | Yes |
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) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
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
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 2 |
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 |
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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
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 5 |