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Yıl:2016; Cilt: 27; Sayı: 2>> Özet
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Türk Psikiyatri Dergisi; 2016;27(2):84-91
Topiramatın Şizofreni ve İki Uçlu Duygudurum I Bozukluğu Olan Hastalarda İlaca Bağlı Kilo Alımına Etkileri: Doz Ayarlarının Seçkisiz Klinik Çalışması
A Talaei, F Faridhosseini, H Kazemi, MRF Bordbar, AR Ardani
Psikiyatri ve Davranışsal Bilimler Araştırma Merkezi, İran
Amaç: Bu çalışmanın amacı olanzapin ile tedavi edilen hastalarda topiramatın kilo alımı üzerindeki koruyucu etkilerini araştırmak ve farklı dozlardaki kullanımının vücut ağırlığına etkisini değerlendirmektir. Yöntem: Bu araştırma topiramatın kilo alımını önleyici etkilerini değerlendirmek ve ilaca bağlı kilo alınımında optimal doz tahmininde bulunmak için yürütülen, 12 hafta süreli, çift-kör ve plasebo kontrollü bir klinik çalışmadır (İran Klinik Çalışma Kayıt Kodu: 201402085280N15). 2009-2011 yılları arasında İran’ın en büyük ikinci şehri olan Meşhed’de hastanede yatan akut şizofreni ve iki uçlu duygudurum I bozukluğunun mani döneminde olan, yaşları 18 ve 60 arası olan 86 hasta seçilmiştir. Hastalar seçkisiz olarak 1-plasebo; 2-50 mg/gün; 3- 100 mg/gün; ve 4- 200 mg/gün topiramat kullanımı olarak dört gruba ayrılmıştır. İki psikiyatrist, katılımcıları müdahale gruplarına atayarak tedavi sürecini takip etmiştir. Değerlendiriciler, hastaları başlangıçta, birinci, ikinci, dördüncü, altıncı, sekizinci ve on ikinci haftalarda tartmıştır. Bel ve bilek çevresi ise başlangıçta, dördüncü, sekizinci ve on ikinci haftalarda ölçülmüştür. Vücut ağırlığı, beden kitle endeksi (BKİ), bilek ve bel çevrelerindeki değişimler çalışmanın sonuç bulguları olarak kullanılmıştır. Toplanan veriler ANOVA, post hoc Tukey testi, Kruskal-Wallis, Mann-Whitney U, ve Cohen’in d’si SPSS versiyon 14 ile analiz edilmiştir. 0.05 den küçük p-değerine sahip bulgular istatistiksel olarak anlamlı kabul edilmiştir. Bulgular: Tüm topiramat gruplarındaki ölçümlerin dördüncü haftadan başlayarak on ikinci haftanın sonuna kadar, plasebo grubuna göre anlamlı derecede daha düşük olduğu görülmüştür. Fakat, hiç bir noktada topiramat grupları arasında istatistiksel olarak anlamlı bir fark gözlemlenmemiştir. Sonuç: Topiramat ilacının bütün dozlarının (günlük 50, 100 ve 200 mg) şizofreni ve iki uçlu duygudurum hastalarında görülen olanzapine bağlı obeziteyi önleyici etkileri olduğu saptanmıştır.
Effect of Topiramate on Drug Associated Weight Gain of Patients with Schizophrenia and Bipolar I Disorders: A Dose Ranging Randomized Trial
Introduction: The aim of this study was to explore the probable prophylactic effects and evaluate different doses of topiramate on body weight in patients treated with olanzapine. Materials and Methods: This was a 12 week, double-blind, placebo-controlled clinical trial (Iranian Clinical Trial Registration Code: 201402085280N15) to assess the preventative effects and estimate the optimal dosage of topiramate in drug-induced weight gain. Sixty eight patients aged 18 to 60 that were hospitalized and treated with olanzapine between 2009-2011due to the onset of an acute episode of schizophrenia or a manic episode of bipolar I disorder were selected in Mashhad, the second largest city in the northeast of Iran. Patients were randomly assigned to 4 groups, including 1- placebo; 2- 50 mg/day; 3- 100 mg/day; and 4- 200 mg/day topiramate. Two psychiatrists assigned participants to an intervention group and followed up the treatment process. Raters weighed patients at baseline and also at weeks 1, 2, 4, 6, 8, and 12, respectively. Waist and wrist circumferences were measured at baseline and weeks 4, 8, and 12. Body weight, BMI, wrist, and waist circumference changes were outcome measures of the study. Collected data were analyzed by ANOVA, post hoc Tukey test, Kruskal-Wallis, Mann-Whitney U, and Cohen’s d with SPSS version 14. A p-value of less than 0.05 was considered significant. Results: All outcome measures were significantly less than the placebo group compared to the topiramate groups at the end of the fourth week and continued to twelfth week. Nevertheless, there was no statistically significant difference in the measures of any of the topiramate groups with each other at any interval. Conclusion: All doses of 50, 100, and 200mg were shown effective in preventing olanzapine-related obesity in schizophrenic and/or bipolar patients.

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