E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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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 | 17.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10015037 |
E.1.2 | Term | Epilepsy |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To confirm the efficacy of levetiracetam (LEV) at doses of 1 and 3 g/day in reducing seizure frequency in patients with partial epilepsy not fully controlled despite treatment with 1 to 3 concomitant Anti-epileptic drugs (AED(s)), and to evaluate the efficacy of LEV at doses of 0.5 and 2 g/day compared to Placebo (PBO).
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E.2.2 | Secondary objectives of the trial |
* To evaluate a dose-response relationship of LEV at doses of 0.5, 1, 2 and 3 g/day and Placebo (PBO), in reducing seizure frequency in patients with partial epilepsy not fully controlled despite treatment with 1 to 3 concomitant AED(s).
* To evaluate the safety and tolerability of LEV at doses of 0.5, 1, 2 and 3 g/day in a placebo-controlled manner, in patients with partial epilepsy not fully controlled despite treatment with 1 to 3 concomitant AED(s).
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Subjects aged from 16 to 65 years at the acquisition of informed consent to the trial participation
- Seizure type: subjects with epileptic seizures which were diagnosed as partial seizures more than 2 years ago according to “Clinical and electroencephalographic classification of epileptic seizures (1981)” defined by the International League Against Epilepsy (ILAE) and confirmed with an EEG that has been performed within 1 year before Screening or at the Screening Visit
- Subjects whose previous therapy before screening involved at least two standard anti-epileptic drugs (AEDs) for partial seizures, and in whom it can be confirmed that the doses met the daily dose specified for the treatment of epilepsy in the package insert and that the therapy has been continued for at least 3 months
- Frequency of epileptic seizures: subjects experiencing partial seizures at least 12 times in 12 weeks during the Baseline Period (Week −12 to Week 0) and at least twice in every 4 weeks
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E.4 | Principal exclusion criteria |
- Subjects who were diagnosed with status epilepticus within 3 months before screening
- Subjects with no partial seizures of which frequency was measured during the Baseline Period
- Subjects who underwent surgery for epilepsy within 2 years before Screening or who were scheduled to undergo brain surgery during the study period and within 4 weeks after the completion of this study
- Subjects with a history of oral treatment with Levetiracetam (LEV)
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E.5 End points |
E.5.1 | Primary end point(s) |
Percent reduction from Baseline in partial (Type I) seizure frequency per week over the Evaluation Period
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
From Baseline to the 12-week Evaluation Period
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E.5.2 | Secondary end point(s) |
- Partial (Type I) seizure frequency per week over the Evaluation Period
- Partial (Type I) seizure responder rates (50 %, 75 %) over the Evaluation Period
- Seizure freedom over the Evaluation Period
- Categorized percentage reduction from Baseline in partial (Type I) seizure frequency per week over the Evaluation Period
- Percentage reduction from Baseline in seizure frequency per week by seizure subtype (IA, IB, IC, IA + IB, other) over the Evaluation Period
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- 12-week Evaluation Period
- From Baseline to the 12-week Evaluation Period
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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 | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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 | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 5 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | Yes |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | No |
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.8.9.2 | In all countries concerned by the trial years | 2 |