E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Dravet syndrome or Lennox-Gastaut syndrome |
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E.1.1.1 | Medical condition in easily understood language |
Dravet syndrome or Lennox-Gastaut syndrome |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10048816 |
E.1.2 | Term | Lennox-Gastaut syndrome |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10073682 |
E.1.2 | Term | Dravet syndrome |
E.1.2 | System Organ Class | 100000004850 |
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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 assess the long-term safety and tolerability of ZX008 |
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E.2.2 | Secondary objectives of the trial |
To assess the effect of ZX008 on the following effectiveness measures: − Investigator assessment of convulsive seizure response (<25%, ≥25%, ≥50%, ≥75%, or 100% [ie, seizure-free] improvement) − Clinical Global Impression – Improvement (CGI-I) rating, global and symptomatic, as assessed by the investigator − CGI-I rating, global and symptomatic, as assessed by the parent/caregiver |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Male or nonpregnant, nonlactating female • Satisfactory completion of a core study • Has a rare seizure disorder, such as epileptic encephalopathy and has successfully completed another Zogenix-sponsored clinical trials with ZX008 • Subject's caregiver is willing and able to be compliant with study procedures, visit schedule and study drug accountability |
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E.4 | Principal exclusion criteria |
• Current cardiac valvulopathy or pulmonary hypertension that is clinically significant • Moderate or severe hepatic impairment • Receiving prohibited medication (please see protocol section 5.6.2), within 14 days of receiving ZX008
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E.5 End points |
E.5.1 | Primary end point(s) |
The safety endpoints of the study are: • AEs • Laboratory safety (hematology, chemistry) • Vital signs (blood pressure, heart rate, temperature, and respiratory rate) • Physical examination • Neurological examination • Electrocardiogram (ECGs) • Doppler echocardiogram (ECHOs) • Body weight/height • Chest x-ray (subjects in France and Netherlands only) • Electroencephalogram (EEG) (in Italy only) |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
The effectiveness endpoints of the study are: − CGI-I, global and symptomatic, as assessed by parent/caregiver − CGI-I, global and symptomatic, as assessed by investigator (or designee) − Percent improvement in seizure burden as assessed by the investigator (or designee) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
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 | 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.8.2.4 | Number of treatment arms in the trial | 1 |
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 | 43 |
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 |
Belgium |
Canada |
Denmark |
France |
Germany |
Italy |
Japan |
Mexico |
Netherlands |
Poland |
Spain |
Sweden |
United Kingdom |
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
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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 | 3 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | 23 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 7 |
E.8.9.2 | In all countries concerned by the trial days | 22 |