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
| No |
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 |
Canada |
Japan |
Mexico |
United States |
France |
Poland |
Sweden |
Netherlands |
Spain |
Germany |
Italy |
Belgium |
Denmark |
United Kingdom |
|
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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LVLS, when ZX008 is approved by regulatory authorities for the subject's indication, a managed access program is established as allowed per country-specific requirements in addition to legal and regulatory guidelines in the subjects country of residence, or the investigational product development for the subject's indication is stopped by the Sponsor, whichever comes first. |
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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 | |
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 |
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 |