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FDA Guideline on Dissolution Testing FDA关于溶出测试的指南 InAugust 2015, the FDA published the draft of a guideline on dissolution testingfor immediate release solid oral dosage forms. It is planned that afterits finalisation, a part of this guideline will replace the current guidelinefrom August 1997. 在2015年8月，FDA公布了即释固体口服制剂的溶出度测试指南草案。FDA计划在其定稿后，此指南的一部分将替代自1997年8月开始实施的现行指南。 TheBiopharmaceutics Classification System (BCS) distinguishes 4 different classesof APIs depending on their solubility and permeability. 生物药品分类系统（BCS）根据其溶解度和渗透性将原料药分为4类。 Onthe basis of this classification, a decision can be taken for determining whenbioavailability or bioequivalence studies are required, or when a successful invitro-in vivo correlation (IVIVC) is likely. 在此分类基础上，可以决定什么时候需要进行生物利用度或生物等效性研究，什么时候体内体外试验（IVIVC）能成功对应。 TheBCS proposes that, for certain medicinal products which contain a high solubleAPI, dissolution testing can be standardised. Due to their high solubility,medicinal products in the BCS classes 1 and 3 have a relatively low risk withregard to the impact on dissolution, provided that the in vitro performancemeets or exceeds the recommendations given. BCS提议对于特定的药品，如果含有可溶的原料药，其溶出度测试可以标准化。由于在BCS一类和三类的药品具有较高的溶解度，如果体外表现符合或超出所给出的建议，则其对溶出的影响风险相对较低。 Ifthese conditions are met, the new guideline will provide concrete provisionsregarding the methods which can be standardised: USP apparatus 1 (basketmethod) or 2 (paddle method) with fixed parameters for stirring rate,medium and temperature. For this, the permitted limits for the specificationsare laid down. In addition, the possibility is granted that, under certainconditions, disintegration testing can be used as alternative method. 如果符合这些条件，则新指南会提供一个具体的方法标准化条款：USP仪器1（转篮法）或2（桨法），配有固定的搅拌速度参数，介质和温度。对此，界定了质量标准所允许的限度。另外，在固定条件下，可以保证崩解试验可以用作替代方法。 你可以在上述网址找到FDA的指南全本。
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发表于 2016-3-10 00:24:11
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