An Investigation into the Effect of Maltitol, Sorbitol, and Xylitol on the Formation of Carbamazepine Solid Dispersions Through Thermal Processing.

IF 4.9 3区 医学 Q1 PHARMACOLOGY & PHARMACY
Madan Sai Poka, Marnus Milne, Anita Wessels, Marique Aucamp
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Abstract

Background: Carbamazepine (CBZ) is a Biopharmaceutical Classification System (BCS) class II drug, that is practically insoluble in water, influencing the oral bioavailability. Polyols are highly hydrophilic crystalline carriers studied for their success in developing solid dispersions (SDs) for improved solubility and dissolution rate. Polyols are generally regarded as safe (GRAS) and maltitol (MAL), xylitol (XYL) and sorbitol (SOR) are among the approved polyols for market use. While xylitol (XYL) and sorbitol, have shown promise in improving the solubility and dissolution rates of poorly soluble drugs, their full potential in the context of improving the solubility of carbamazepine have not been thoroughly investigated. To the best of our knowledge, maltitol (MAL) was not studied previously as a carrier for preparing SDs. Hence, the purpose of this study was to investigate their use in the preparation of CBZ SDs by the fusion method. Methods: CBZ-polyol SDs were prepared in varying molar ratios (2:1, 1:1 and 1:2) and characterised for solid-state nature, solubility and in-vitro dissolution rate. Results: Solid-state characterisation of the CBZ-polyol SDs revealed the existence of the SDs as continuous glass suspensions with fine CBZ crystallites suspended in the amorphous polyol carriers. Among the polyols studied, XYL exhibited good miscibility with CBZ and showed significant improvement in the solubility and dissolution rate. The prepared SDs showed a 2 to 6-folds increase in CBZ solubility and 1.4 to 1.9-folds increase in dissolution rate in comparison with pure CBZ. Conclusions: The study explains the possible use of polyols (XYL and SOR) based SDs of BCS Class II drugs with good glass forming ability for enhanced solubility and dissolution.

麦芽糖醇、山梨糖醇和木糖醇对卡马西平固体分散体热合成影响的研究。
背景:卡马西平(Carbamazepine, CBZ)是生物药品分类系统(BCS)ⅱ类药物,几乎不溶于水,影响口服生物利用度。多元醇是一种高度亲水性的晶体载体,研究了它们在提高溶解度和溶解速度方面取得的成功。多元醇通常被认为是安全的(GRAS),麦芽糖醇(MAL)、木糖醇(XYL)和山梨糖醇(SOR)是获准上市使用的多元醇。虽然木糖醇(XYL)和山梨醇在改善难溶性药物的溶解度和溶出率方面表现出了希望,但它们在改善卡马西平溶解度方面的全部潜力尚未得到彻底的研究。据我们所知,以前没有研究过麦芽糖醇(MAL)作为制备SDs的载体。因此,本研究的目的是探讨它们在融合法制备CBZ SDs中的应用。方法:以不同的摩尔比(2:1,1:1和1:2)制备cbz -多元醇SDs,并对其固态性质、溶解度和体外溶出率进行表征。结果:CBZ-多元醇SDs的固态表征表明,SDs以连续的玻璃悬浮液的形式存在,精细的CBZ晶体悬浮在无定形多元醇载体中。在所研究的多元醇中,XYL与CBZ具有良好的混相性,在溶解度和溶出率方面均有显著改善。与纯CBZ相比,SDs的CBZ溶解度提高2 ~ 6倍,溶出率提高1.4 ~ 1.9倍。结论:该研究解释了基于多元醇(XYL和SOR)的BCS II类药物的SDs具有良好的玻璃化能力,可以提高溶解度和溶解性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Pharmaceutics
Pharmaceutics Pharmacology, Toxicology and Pharmaceutics-Pharmaceutical Science
CiteScore
7.90
自引率
11.10%
发文量
2379
审稿时长
16.41 days
期刊介绍: Pharmaceutics (ISSN 1999-4923) is an open access journal which provides an advanced forum for the science and technology of pharmaceutics and biopharmaceutics. It publishes reviews, regular research papers, communications,  and short notes. Covered topics include pharmacokinetics, toxicokinetics, pharmacodynamics, pharmacogenetics and pharmacogenomics, and pharmaceutical formulation. Our aim is to encourage scientists to publish their experimental and theoretical details in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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