Literature DB >> 21967069

Long-term assessment of topiramate for epilepsy: an open-label, single-arm, multicentre, prospective study in a naturalistic setting.

Andreas Hufnagel1, Andreas Kowalik, Klaus Rettig, Andreas Schreiner, Barbara Schäuble.   

Abstract

BACKGROUND AND
OBJECTIVE: Most patients with epilepsy require long-term medical therapy. Newer antiepileptic drugs (AEDs) appear to be overall similarly effective to older agents but may be better tolerated. However, most of the clinical data available for newer AEDs derive from a number of short-term studies. The objective of this study was to explore long-term outcomes in patients with epilepsy treated with topiramate in routine clinical practice.
METHODS: This was an open-label, multicentre, optional follow-up monotherapy study that included adolescents and adults with epilepsy who completed two similarly designed 28- or 30-week studies and agreed to participate for an additional 52 weeks. Seizure types and frequency, topiramate dose, vital signs and treatment-emergent adverse events (TEAEs) after 12, 26, 39 and 52 weeks were documented. Post hoc analyses to explore differences between males and females were conducted.
RESULTS: 114 patients (49.0% women, mean ± SD age 43 ± 17.5 years) with a mean ± SD disease duration of 61 ± 118 months (men 54 ± 96 vs women 68 ± 138 months) were followed up for a median of 18.5 months. Seventy-eight percent of patients completed the study. Reasons for premature discontinuation were: loss to follow-up (10.5%), TEAE (5.3%), lack of efficacy (2.6%), non-adherence (0.9%) and other reasons (4.4%). Seizure frequency per 4 weeks decreased from a mean ± SD 5.0 ± 28.3 at baseline to 0.6 ± 2.1 during the whole observation period. Fifty-four patients (52.9%) were seizure free during the whole observation period. In addition, 69 of 95 patients (72.6%) whose topiramate therapy was stable within a range of ±50 mg/day for a period of at least 12 months (maintenance phase) were seizure free while treated with a median topiramate dose of 100 mg/day. The most frequently reported TEAEs were paraesthesias (13.2% of patients), dizziness (7.0%) and seizure-related events (7.0%). No significant differences between males and females were found for treatment response or retention.
CONCLUSION: Topiramate is an effective and well tolerated long-term treatment option for adolescents and adults with epilepsy.

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Year:  2011        PMID: 21967069     DOI: 10.2165/11593850-000000000-00000

Source DB:  PubMed          Journal:  Clin Drug Investig        ISSN: 1173-2563            Impact factor:   2.859


  23 in total

1.  Levetiracetam: a long-term follow-up study of efficacy and safety.

Authors:  J Bauer; E Ben-Menachem; G Krämer; W Fryze; S Da Silva; D G A Kasteleijn-Nolst Trenité
Journal:  Acta Neurol Scand       Date:  2006-09       Impact factor: 3.209

2.  Randomized dose-controlled study of topiramate as first-line therapy in epilepsy.

Authors:  S Arroyo; W E Dodson; M D Privitera; T A Glauser; D K Naritoku; D J Dlugos; S Wang; S K Schwabe; R E Twyman
Journal:  Acta Neurol Scand       Date:  2005-10       Impact factor: 3.209

3.  Time course of adverse events in patients with localization-related epilepsy receiving topiramate added to carbamazepine.

Authors:  Jerzy Majkowski; Walter Neto; Robert Wapenaar; Joop Van Oene
Journal:  Epilepsia       Date:  2005-05       Impact factor: 5.864

4.  Long-term seizure outcome and antiepileptic drug treatment in surgically treated temporal lobe epilepsy patients: a controlled study.

Authors:  C G Bien; M Kurthen; K Baron; S Lux; C Helmstaedter; J Schramm; C E Elger
Journal:  Epilepsia       Date:  2001-11       Impact factor: 5.864

5.  Epilepsy outcomes in elderly treated with topiramate.

Authors:  H Stefan; L Hubbertz; I Peglau; J Berrouschot; B Kasper; A Schreiner; J Krimmer; B Schauble
Journal:  Acta Neurol Scand       Date:  2008-03-31       Impact factor: 3.209

6.  Sustained efficacy and long-term safety of oxcarbazepine: one-year open-label extension of a study in refractory partial epilepsy.

Authors:  Ahmad Beydoun; Rajesh C Sachdeo; Ekrem Kutluay; Kevin McCague; Joseph D'Souza
Journal:  Epilepsia       Date:  2003-09       Impact factor: 5.864

7.  A dose-comparison trial of topiramate as monotherapy in recently diagnosed partial epilepsy.

Authors:  F G Gilliam; F Veloso; M A M Bomhof; S K Gazda; V Biton; J P Ter Bruggen; W Neto; C Bailey; G Pledger; S-C Wu
Journal:  Neurology       Date:  2003-01-28       Impact factor: 9.910

8.  Retention rates of new antiepileptic drugs in localization-related epilepsy: a single-center study.

Authors:  J Peltola; M Peltola; A Auvinen; J Raitanen; M Fallah; T Keränen
Journal:  Acta Neurol Scand       Date:  2008-06-24       Impact factor: 3.209

9.  Topiramate in add-on therapy: results from an open-label, observational study.

Authors:  K Krakow; U Lengler; K Rettig; A Schreiner; B Schauble
Journal:  Seizure       Date:  2007-05-31       Impact factor: 3.184

10.  The SANAD study of effectiveness of carbamazepine, gabapentin, lamotrigine, oxcarbazepine, or topiramate for treatment of partial epilepsy: an unblinded randomised controlled trial.

Authors:  Anthony G Marson; Asya M Al-Kharusi; Muna Alwaidh; Richard Appleton; Gus A Baker; David W Chadwick; Celia Cramp; Oliver C Cockerell; Paul N Cooper; Julie Doughty; Barbara Eaton; Carrol Gamble; Peter J Goulding; Stephen J L Howell; Adrian Hughes; Margaret Jackson; Ann Jacoby; Mark Kellett; Geoffrey R Lawson; John Paul Leach; Paola Nicolaides; Richard Roberts; Phil Shackley; Jing Shen; David F Smith; Philip E M Smith; Catrin Tudur Smith; Alessandra Vanoli; Paula R Williamson
Journal:  Lancet       Date:  2007-03-24       Impact factor: 79.321

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