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Acta Neurol Scand. 2003 Mar;107(3):165-75.

Topiramate, carbamazepine and valproate monotherapy: double-blind comparison in newly diagnosed epilepsy.

Author information

  • 1Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA. michael.privitera@uc.edu

Abstract

OBJECTIVES:

To compare topiramate (TPM) with investigator's choice of carbamazepine (CBZ) or valproate (VPA) for initial treatment in patients with newly diagnosed epilepsy.

MATERIAL AND METHODS:

In patients with epilepsy diagnosed within previous 3 months, investigators selected CBZ (600 mg/day) or VPA (1250 mg/day) as preferred therapy based on the patient's clinical presentation. Based on investigators' treatment choice, patients (n=613) were assigned to the CBZ or VPA treatment branch. Within each branch, patients were randomized to double-blind treatment with the traditional antiepileptic drugs (CBZ or VPA), TPM 100 mg/day, or TPM 200 mg/day. Patients continued double-blind treatment until exiting the study or until 6 months after last patient randomized.

RESULTS:

No statistically significant differences between fixed doses of TPM and CBZ or VPA were observed in efficacy measures: time to exit, time to first seizure, and the proportion of patients seizure-free during the last 6 months of treatment. TPM 100 mg/day was associated with the fewest discontinuations due to adverse events.

CONCLUSION:

In patients with newly diagnosed epilepsy, an initial target dose of TPM 100 mg/day is at least as effective as therapeutic doses of CBZ and VPA.

PMID:
12614309
[PubMed - indexed for MEDLINE]
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