Gabapentin monotherapy: II. A 26-week, double-blind, dose-controlled, multicenter study of conversion from polytherapy in outpatients with refractory complex partial or secondarily generalized seizures

A. Beydoun, J. Fischer, D. R. Labar, C. Harden, D. Cantrell, B. M. Uthman, J. C. Sackellares, B. Abou-Khalil, R. E. Ramsay, A. Hayes, M. Greiner, Elizabeth Garofalo, M. Pierce

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

This study evaluated gabapentin monotherapy in 275 patients with medically refractory complex partial or secondarily generalized seizures who were taking one or two antiepileptic drugs (AEDs). Following an 8-week baseline, patients received randomized dosages of gabapentin (600, 1,200, or 2,400 mg/d) during a 26-week double-blind phase comprising 2 weeks gabapentin add-on therapy, an 8-week AED taper, and a 16-week gabapentin monotherapy period. Patients exited the study if they experienced a protocol-defined exit event. Results of outcome measures, including time to exit, completion rate, and mean time on monotherapy, showed no significant differences among dosage groups. Possible reasons for this lack of a dose-response relationship include withdrawal seizures and the limited range of gabapentin dosages studied. Overall, 20% of patients completed the study. Completion rates were higher among patients who had discontinued one AED (23%) than two AEDs (14%), and higher among patients who were not withdrawn from carbamazepine (27%) than among those who were (16%).

Original languageEnglish (US)
Pages (from-to)746-752
Number of pages7
JournalNeurology
Volume49
Issue number3
DOIs
StatePublished - Sep 1997
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology

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