論文 - 詳細
| RRC ID | 51913 |
|---|---|
| 著者 | Kojo Y, Matsunaga S, Suzuki H, Sato H, Seto Y, Onoue S. |
| タイトル | Improved oral absorption profile of itraconazole in hypochlorhydria by self-micellizing solid dispersion approach. |
| ジャーナル | Eur J Pharm Sci |
| Abstract |
The present study was aimed to evaluate the applicability of a self-micellizing solid dispersion (SMSD) system of itraconazole (ITZ) with the use of Soluplus® to achieve improved dissolution and stable oral absorption of ITZ under hypochlorhydric conditions. The SMSD of ITZ (SMSD/ITZ) was prepared by the freeze-drying method. Physicochemical properties of SMSD/ITZ were assessed in terms of morphology, crystallinity, particle size, thermal behavior, dissolution profile, and stability. The pharmacokinetic profile of SMSD/ITZ was evaluated in both normal rats and omeprazole-treated rats as a hypochlorhydric model. From the crystallinity assessment, ITZ in SMSD/ITZ might exist in an amorphous state. The dissolution behavior of SMSD/ITZ was markedly improved under both acidic and neutral conditions through the formation of nano-micelles with a diameter of 127nm. The degradation of ITZ in SMSD/ITZ was negligible after storage under accelerated conditions at 40°C or 40°C/75%RH for 4weeks. Under light exposure, ca. 33% of ITZ in SMSD/ITZ was degraded, suggesting the need for protection from light. Although the oral absorption of crystalline ITZ was negligible, SMSD/ITZ showed an improved pharmacokinetic profile in normal rats, with an absolute bioavailability (BA) of 2.9%, and even 6.3% in the hypochlorhydric model. From these findings, SMSD technology could be beneficial for improving the absorption profiles of weak basic drugs, even in hypochlorhydric patients. |
| 巻・号 | 97 |
| ページ | 55-61 |
| 公開日 | 2017-1-15 |
| DOI | 10.1016/j.ejps.2016.10.032 |
| PII | S0928-0987(16)30471-7 |
| PMID | 27810562 |
| MeSH | Achlorhydria / drug therapy Achlorhydria / metabolism* Administration, Oral Animals Antifungal Agents / administration & dosage Antifungal Agents / chemistry Antifungal Agents / metabolism* Cell Line Drug Liberation / drug effects Drug Liberation / physiology Intestinal Absorption / drug effects Intestinal Absorption / physiology* Intestinal Mucosa / drug effects Intestinal Mucosa / metabolism Itraconazole / administration & dosage Itraconazole / chemistry Itraconazole / metabolism* Male Micelles* Polyethylene Glycols / administration & dosage Polyethylene Glycols / chemistry Polyethylene Glycols / metabolism* Polyvinyls / administration & dosage Polyvinyls / chemistry Polyvinyls / metabolism* Rats Rats, Sprague-Dawley X-Ray Diffraction |
| IF | 3.616 |
| 引用数 | 10 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | News |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ヒト・動物細胞 | IEC 6(RCB0993) |