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Simultaneous determination of clomipramine and its desmethyl and hydroxy metabolites in plasma of patients by high-performance liquid chromatography after solid-phase extraction

jiangfyh 添加于 2009-9-10 14:10 | 1741 次阅读 | 0 个评论

作者
PIROLA R, MUNDO E, BELLODI L, BAREGGI S
摘要
Clomipramine (CMI) is a typical tricyclic antidepressant with a wide clinical spectrum, being used in major depressive, panic and obsessive-compulsive disorders. The relationship between clinical response and plasma levels of clomipramine and its N-desmethylated ( N -desmethylclomipramine, DMCMI) and hydroxy-metabolites remains unclear. In particular, limited information is available on the correlation with clinical response in patients with obsessive-compulsive disorder (OCD). This study describes a new sensitive method to simultaneously determine CMI and its major N-desmethylated and hydroxy-metabolites present in human plasma by HPLC with a UV detector. After a solid-phase extraction from plasma (Isolute C2 columns) the separation of the compounds was performed on a Lichrospher CN column (250×4 mm, 5 μm with a 2-cm pre-column) by an eluent consisting of 10 m M K 2 HPO 4 –acetonitrile–methanol (35:25:40 v/v/v) at a flow of 1.5 ml/min. UV detector was set at 214 nm. The lower limit of quantification for all the analytes was at least 5 ng/ml. The coefficients of variation ranged between 2.0 and 4.9% with recovery rates between 97.0 and 100.3%. Linear regression analyses showed correlation coefficients between 0.98 and 0.99. This method is simple, fast and reliable with good specificity and sensitivity. Solid phase extraction is efficient and rapid, allowing the extraction of several plasma samples on the same day and may therefore be usefully and realistically applied in the clinical context. We thus investigated the relevance of plasma levels of CMI and its metabolites as a predictor of clinical outcome in a group of 15 patients with OCD.
详细资料
- 文献种类:期刊
- 期刊名称: Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
- 期刊缩写: Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
- 期卷页: 2002年第772卷第2期 205-210页
- ISBN: 1570-0232
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