کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8994849 | 1114466 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioavailability enhancement of a COX-2 inhibitor, BMS-347070, from a nanocrystalline dispersion prepared by spray-drying
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
داروسازی، سم شناسی و علوم دارویی
اکتشاف دارویی
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چکیده انگلیسی
Spray drying drug with excipients is usually associated with the preparation of microcrystalline or amorphous drug in order to improve bioavailability. It was found that BMS-347070, when spray-dried with Pluronic F127 from acetone or methylene chloride, was dispersed as nanosized crystalline drug within the water-soluble Pluronic matrix. The reduction in drug particle/crystallite size, coupled with wetting by the Pluronic, resulted in a fast-onset formulation with bioavailability comparable to that of a solubilized and a NanoCrystal® formulation. For this system, it is theorized that the polyethylene oxide segments of Pluronic crystallize and that the polypropylene oxide segments remain amorphous, providing a size-restricted domain in which the COX-2 drug crystallizes. This results in improved bioavailability while limiting the potential risk of conversion of an amorphous drug to its crystalline state. © 2005 Wiley-Liss, Inc. and the American Pharmacists Association.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 94, Issue 7, July 2005, Pages 1598-1607
Journal: Journal of Pharmaceutical Sciences - Volume 94, Issue 7, July 2005, Pages 1598-1607
نویسندگان
Shawn X. Yin, Miriam Franchini, Jinling Chen, Alice Hsieh, Sandy Jen, Tu Lee, Munir Hussain, Ronald Smith,