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 evaluate the long term effectiveness of Levetiracetam (LEV) monotherapy on Treatment Failure Rate in subjects with newly diagnosed partial onset seizures with or without secondary generalized seizure, compared to Oxcarbazepine (OXC) monotherapy over 50 weeks from the first dose of study medication and to demonstrate that monotherapy with LEV (1,000 to 3,000 mg/day) is non-inferior to monotherapy with OXC (900 to 2,400 mg/day).
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E.2.2 | Secondary objectives of the trial |
- To evaluate the efficacy of LEV monotherapy on Time to First Seizure in subjects with newly diagnosed partial onset seizures with or without secondary generalized seizures compared to OXC monotherapy
- To evaluate the efficacy of LEV monotherapy on 24-week Seizure Freedom Rate for 24 consecutive weeks during the treatment period at any time and 48-week Seizure-Freedom Rate during the treatment period
- To evaluate the safety and tolerability of LEV monotherapy in subjects with newly diagnosed partial onset seizures with or without secondary generalized seizure compared to OXC monotherapy
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Male or female subjects from 16 to 80 years, inclusive. Vulnerable subjects (e.g., under 20 years or subject with learning disability but judged to be capable to understand) may only be included where legally permitted and ethically accepted
- Subjects with newly or recently diagnosed epilepsy having experienced unprovoked partial seizures (IA, IB, IC with clear focal origin), that are classifiable according to the International Classification of Epileptic seizure (1981). Undiscriminated subjects between IC and IIE could be included
- Subjects with at least 2 unprovoked seizures separated by a minimum of 48 hours in the year preceding randomization out of which at least 1 unprovoked seizure in the 6 months preceding randomization
- Subjects with documented evidence of EEG and brain MRI or CT scan in medical records which were performed within 1 year prior to Visit 1 (V1)
- Subjects have no treatment with anti-epileptic drugs in the 6 months preceding this study. The treatment for acute seizure control is acceptable with a maximum of 2 weeks duration and if the treatment was stopped at least 1 week before V1. For Phenobarbital and Phenobarbital derivatives, a minimum of 4 weeks wash-out is requested before V1
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E.4 | Principal exclusion criteria |
- Subject has a current or previous diagnosis of pseudoseizures, conversion disorders, or other non-epileptic ictal events which could be confused with seizures
- Subject taking 1 or more of the following medications on a regular basis within 28 days prior to Visit 1: neuroleptics, monoamine oxidase (MAO) inhibitors and narcotic analgesics
- Subject taking any immunosuppressant within 28 days prior to Visit 1
- Subject has a history of suicide attempt, has received professional counseling for suicidal ideation, or is currently experiencing active suicidal ideation
- Subject has a seizure disorder characterized primarily by isolated auras (ie, simple partial seizures without observable motor signs)
- Subject suffering from seizures other than partial (IA, IB, IC, with clear focal origin) seizures
- Subject has a history of status epilepticus within last 3-month period prior to Visit 1
- Subject has seizures that are uncountable due to clustering (ie, an episode lasting less than 30 minutes in which several seizures occur with such frequency that the initiation and completion of each individual seizure cannot be distinguished) during the 12-week period prior to Visit 1 and/or during the Screening Period
- Body weight is lower than 40 kg (< 40 kg) |
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E.5 End points |
E.5.1 | Primary end point(s) |
Percentage of subjects with a treatment failure, defined as (1) dropout due to related adverse event, lack of efficacy or need for addition of another Antiepileptic Drug (AED), or (2) need of a 1-step down-titration after 50 weeks from the first dose of study medication
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Week 0 (First Dose) to Week 50
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E.5.2 | Secondary end point(s) |
- Time to the first seizure defined as the time from the first dose of medication to the occurrence of the first seizure during the 48 weeks Treatment Period
- Percentage of subjects who achieved seizure freedom for 24 consecutive weeks during the 48 weeks Treatment Period at any time
- Percentage of subjects who achieved seizure freedom during the 48 weeks Treatment Period
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
From Week 2 to Week 50 (During Treatment 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) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
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) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
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 |