Download e-book for kindle: Active Pharmaceutical Ingredients: Development, by Stanley Nusim

By Stanley Nusim

Targeting the 3 most crucial parts that effectively carry an API to market-process improvement, production, and governmental legislation and approval-this reference serves as a step by step advisor to the making plans and transparent knowing of the majority production of APIs. This consultant deals present and well timed discussions of the method improvement cycle, layout engineering, the approval technique, quality controls and insurance, and validation, in addition to plant production actions together with fabrics administration, upkeep, and protection.

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Extra info for Active Pharmaceutical Ingredients: Development, Manufacturing, and Regulation (Drugs and the Pharmaceutical Sciences)

Sample text

Applied effort plane introduced in Fig. 6. During these stage-specific discussions, the three bulk development tasks will serve as the basis and along the lines of Fig. 5. Process Development 25 C. The Stages of Bulk Drug Process Development 1. The Preparative Stage Although preparative work takes place throughout the process development cycle, this first stage is most aptly described as the preparative stage. Its focus, although not exclusively, is the preparation of limited amounts of bulk drug for assorted preclinical purposes, then followed by first scale-up to support Phase I activities, which include testing the drug in healthy subjects (humans or the target animals if a veterinary drug).

FROM THE BENCH TO THE PILOT PLANT AND BEYOND A. Process Conception and Bench Scale Development Except for fermentation or recovery from natural sources, all other chemical entities are obtained by chemical synthesis from organic chemicals and the process conception starts with that of the synthesis route—the scheme by which selected starting structures are converted to the target drug candidate. Factors considered by the synthetic chemistry team are: (a) Starting materials that are available (or could be available) that promise an attractive route, and a wish list for such a route could be as follows: 1.

Although the latter goal requires that the desired route be at the scaled-up stage, considerable progress can be made if pieces of the desired route are scaled-up before the total route is brought to the pilot plant. (c) It is also during the development scale that the definition and achievement of the desired physicochemical attributes of the bulk drug is pursued in earnest, hopefully after the dosage form development team has narrowed down the ranges for those properties after the major decision—which particular salt or the free base or the acid will be the bulk drug form of the biologically active structure.

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Active Pharmaceutical Ingredients: Development, Manufacturing, and Regulation (Drugs and the Pharmaceutical Sciences) by Stanley Nusim


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