Tiagabine therapy for complex partial seizures. A dose-frequency study. The Tiagabine Study Group.

Autor:	Sachdeo RC; Department of Neurology, University of Medicine and Dentistry of New Jersey, New Brunswick 08901-2160, USA., Leroy RF, Krauss GL, Drake ME Jr, Green PM, Leppik IE, Shu VS, Ringham GL, Sommerville KW
Jazyk:	angličtina
Zdroj:	Archives of neurology [Arch Neurol] 1997 May; Vol. 54 (5), pp. 595-601.
DOI:	10.1001/archneur.1997.00550170069016
Abstrakt:	Objective: To evaluate the efficacy and safety of 2 regimens of tiagabine as add-on therapy for patients with complex partial seizures (CPSs) that are refractory to other treatment. Design: Randomized, double-blind, placebo-controlled, add-on, parallel-group trial with an 8-week baseline period, 12-week experimental period (4 weeks of dose titration and 8 weeks of fixed-dose therapy), and 4-week termination period. Setting: Twenty-six centers throughout the United States. Patients: Three hundred fifty-one patients were enrolled, 318 were entered in the double-blind period, and 271 completed the study. Interventions: Tiagabine, 16 mg 2 times per day (106 patients); tiagabine, 8 mg 4 times daily (105 patients); and placebo (107 patients). The doses of tiagabine were titrated in 3 steps to the fixed dose. Main Outcome Measure: The median change in the 4-week rate of CPSs from baseline to experimental period. Results: The median change from baseline was -1.6 CPSs per 4 weeks in the group of patients who were given tiagabine 2 times per day, and it was -1.2 CPSs in the group of patients who were given tiagabine 4 time per day (P = .06 and P = .02, respectively, compared with placebo). The 4-week seizure frequency was reduced by 50% or more in 31% of the patients who were given tiagabine 2 times per day and in 27% of the patients who were given tiagabine 4 times per day vs 10% of the placebo-treated patients (P < or = .001 for each tiagabine-treated group compared with the placebo group). The most frequent adverse events involved the central nervous system and occurred in comparable proportions in the 3 treatment groups. Similar proportions of patients discontinued the study prematurely for adverse events. Conclusions: Tiagabine administered 2 and 4 times daily as add-on pharmacotherapy was effective in reducing CPSs in patients with epilepsy whose conditions were refractory to treatment with other antiepileptic agents, and it was well tolerated.
Databáze:	MEDLINE
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