Open-label, Randomized, Active-controlled Study of LEV Used as Monotherapy in Patients With Partial-Onset Seizures

An Open-label, Randomized, Parallel-group, Active-controlled Study Comparing the Efficacy and Safety of Levetiracetam to Carbamazepine Used as Monotherapy in Subjects Newly or Recently Diagnosed as Epilepsy and Partial-onset Seizures

To demonstrate the non-inferiority of Levetiracetam (1000 mg/day) versus Carbamazepine Immediate-Release (400 mg/day) used as monotherapy for at least 6 months in a Chinese population with newly or recently diagnosed Epilepsy who are experiencing Partial-Onset Seizures (POS).

Inclusion Criteria:

• Subject is of Chinese origin and ≥ 16 years of age
• Subject is newly or recently diagnosed with Epilepsy, having experienced unprovoked Partial-Onset Seizures (POS)
• Subject has experienced at least 2 unprovoked seizures in the year preceding randomization, of which at least 1 unprovoked seizure occurred in the 3 months preceding randomization
• Subject has had an Electroencephalogram (EEG) and a brain Computed Tomography (CT) scan or brain Magnetic Resonance Imaging (MRI) scan consistent with a diagnosis of Epilepsy with POS

Exclusion Criteria:

• Subject tests positive for human leukocyte antigen major histocompatibility complex, class I,B (HLA-B)* 1502 allele
• Subject has a history or presence of seizures of other types than Partial-Onset Seizures (POS)
• Subject has only experienced type IA nonmotor seizures
• Subject has a history or presence of seizures occurring only in clustered patterns
• Subject has a history of clinical or Electroencephalogram (EEG) findings suggestive of Idiopathic Generalized Epilepsy prior to randomization
• Subject has current or previous diagnosis of pseudoseizures, conversion disorders, or other nonepileptic ictal events that could be confused with seizures
• Subject has a history of Status Epilepticus