Nanocrystal solid dispersion of fuzapladib free acid with improved oral bioavailability

Nanocrystal solid dispersion of fuzapladib free acid with improved oral bioavailability
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具有改善口服生物利用度的fuzapladib游离酸纳米晶体固体分散体

DOI:
10.1002/bdd.2314
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发表时间:
2022
影响因子:
2.1
通讯作者:
Onoue Satomi
Onoue Satomi
中科院分区:
医学4区
文献类型:
--
作者:
Yamada Kohei;Hayashi Yuto;Sasaki Kenta;Higuchi Koji;Shindo Takeshi;Shikama Hiroshi;Sato Hideyuki;Onoue Satomi

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本研究旨在开发一种具有增强吸收性的 fuzapladib (FZP) 口服纳米晶体固体分散体 (nCSD),用于治疗急性胰腺炎 (AP)。评估结晶FZP游离酸(结晶FZP)和FZP钠盐(FZP/Na)的水合特性以选择稳定的晶型。使用多入口涡旋混合器制备 FZP 游离酸的 nCSD (nCSD/FZP),并对其物理化学和药代动力学特性进行评估。 X射线粉末衍射分析结果表明,结晶FZP作为无水物是稳定的,而FZP/Na在水分活度高于0.2时转化为一水合物。 nCSD/FZP 中的纳米晶体分散在羟丙基纤维素-SSL 中,平均粒径为 160 nm,呈均匀的球形。在溶出测试中,与结晶 FZP 相比,nCSD/FZP 表现出快速溶出,并在最初 30 分钟内达到 FZP 的饱和浓度。大鼠口服给药(2 mg-FZP/kg)后,nCSD/FZP 的最大血浆浓度和生物利用度分别比结晶 FZP 高 7.3 倍和 5.2 倍,这是由于纳米化改善了溶出度。总之,nCSD/FZP 可能是一种新型口服剂型,具有增强的吸收性,促进 FZP 治疗动物 AP 的有效疗效。
This study aimed to develop an oral nanocrystal solid dispersion (nCSD) of fuzapladib (FZP) with enhanced absorbability for the treatment of acute pancreatitis (AP). The hydration properties of crystalline FZP free acid (crystalline FZP) and FZP sodium salt (FZP/Na) were assessed to select a stable crystal form. The nCSD of FZP free acid (nCSD/FZP) was prepared using a multi‐inlet vortex mixer and evaluated in terms of physicochemical and pharmacokinetic properties. The results of X‐ray powder diffraction analysis indicated that crystalline FZP was stable as an anhydrate, while FZP/Na was converted to its monohydrate at water activity of above 0.2. The nanocrystals in nCSD/FZP were dispersed in hydroxy propyl cellulose‐SSL, and their mean particle size were 160 nm with uniform spherical shape. In dissolution testing, nCSD/FZP exhibited rapid dissolution compared with crystalline FZP and reached a saturated concentration of FZP within initial 30 min. After oral administration (2 mg‐FZP/kg) to rats, the maximum plasma concentration and bioavailability were 7.3‐ and 5.2‐fold higher for nCSD/FZP than crystalline FZP, respectively, due to improved dissolution by nanosization. In conclusion, nCSD/FZP may be a novel oral dosage form with enhanced absorbability facilitating potent therapeutic effects of FZP for the treatment of AP in animals.
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