Preferential Formulation of Second Generation Antipsychotic Asenapine as Inclusion Complex with Sulphobutylether-βCD (Captisol): In vitro and In vivo Evaluation
Objective: Enhancement in solubility of asenapine through complexation with three different cyclodextrins, viz. βCD, HPβCD and sulphobutylether-βCD (Captisol®) was attempted and compared due to its poor bioavailability.
Method: Kneading method was used for preparation of inclusion complexes which were characterized by FTIR, DSC, and XRD methods. Extent of binding and stability of the 1:1 inclusion complexes were evaluated by molecular modelling and phase solubility studies. Pharmacokinetic studies were also carried out of these inclusion complexes.
Results: Captisol® complex was the most stable amongst all complexes showing 4.9 times solubility enhancement of asenapine and 96% drug release at the end of 60 min, whereas asenapine maleate (uncomplexed drug) was released completely at the end of 120min. The Cmax and AUC values of Captisol® asenapine complex (AS-Captisol complex) were 2.8 and 2.3 times higher than the uncomplexed drug.
Conclusion: This study thus demonstrated that Captisol® inclusion complex is an effective strategy for solubility and bioavailability enhancement of asenapine.
Document Type: Research Article
Publication date: May 1, 2018
This article was made available online on December 14, 2017 as a Fast Track article with title: "Preferential Formulation of Second Generation Antipsychotic Asenapine as Inclusion Complex with Sulphobutylether-βCD (Captisol): In vitro and In vivo Evaluation".
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