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Absorption And Drug Development Solubility Permeability And Charge State

Author: Alex Avdeef
Publisher: John Wiley & Sons
ISBN: 1118286030
Size: 59.73 MB
Format: PDF, Mobi
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Explains how to perform and analyze the results of the latest physicochemical methods With this book as their guide, readers have access to all the current information needed to thoroughly investigate and accurately determine a compound's pharmaceutical properties and their effects on drug absorption. The book emphasizes oral absorption, explaining all the physicochemical methods used today to analyze drug candidates. Moreover, the author provides expert guidance to help readers analyze the results of their studies in order to select the most promising drug candidates. This Second Edition has been thoroughly updated and revised, incorporating all the latest research findings, methods, and resources, including: Descriptions and applications of new PAMPA models, drawing on more than thirty papers published by the author's research group Two new chapters examining permeability and Caco-2/MDCK and permeability and the blood-brain barrier Expanded information and methods to support pKa determination New examples explaining the treatment of practically insoluble test compounds Additional case studies demonstrating the use of the latest physicochemical techniques New, revised, and expanded database tables throughout the book Well over 200 drawings help readers better understand difficult concepts and provide a visual guide to complex procedures. In addition, over 800 references serve as a gateway to the primary literature in the field, facilitating further research into all the topics covered in the book. This Second Edition is recommended as a reference for researchers in pharmaceutical R&D as well as in agrochemical, environmental, and other related areas of research. It is also recommended as a supplemental text for graduate courses in pharmaceutics.

Physicochemical And Biomimetic Properties In Drug Discovery

Author: Klara Valko
Publisher: John Wiley & Sons
ISBN: 1118770323
Size: 47.21 MB
Format: PDF, Kindle
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Demonstrating how and why to measure physicochemical and biomimetic properties in early stages of drug discovery for lead optimization, Physicochemical and Biomimetic Properties in Drug Discovery encourages readers to discover relationships between various measurements and develop a sense of interdisciplinary thinking that will add to new research in drug discovery. This practical guide includes detailed descriptions of state-of-the-art chromatographic techniques and uses real-life examples and models to help medicinal chemists and scientists and advanced graduate students apply measurement data for optimal drug discovery.

Drug Like Properties

Author: Li Di
Publisher: Academic Press
ISBN: 0128013222
Size: 50.84 MB
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Of the thousands of novel compounds that a drug discovery project team invents and that bind to the therapeutic target, only a fraction have sufficient ADME (absorption, distribution, metabolism, elimination) properties, and acceptable toxicology properties, to become a drug product that will successfully complete human Phase I clinical trials. Drug-Like Properties: Concepts, Structure Design and Methods from ADME to Toxicity Optimization, Second Edition, provides scientists and students the background and tools to understand, discover, and develop optimal clinical candidates. This valuable resource explores physiochemical properties, including solubility and permeability, before exploring how compounds are absorbed, distributed, and metabolized safely and stably. Review chapters provide context and underscore the importance of key concepts such as pharmacokinetics, toxicity, the blood-brain barrier, diagnosing drug limitations, prodrugs, and formulation. Building on those foundations, this thoroughly updated revision covers a wide variety of current methods for the screening (high throughput), diagnosis (medium throughput) and in-depth (low throughput) analysis of drug properties for process and product improvement. From conducting key assays for interpretation and structural analysis, the reader learns to implement modification methods and improve each ADME property. Through valuable case studies, structure-property relationship descriptions, and structure modification strategies, Drug-Like Properties, Second Edition, offers tools and methods for ADME/Tox scientists through all aspects of drug research, discovery, design, development, and optimization. Provides a comprehensive and valuable working handbook for scientists and students in medicinal chemistry Includes expanded coverage of pharmacokinetics fundamentals and effects Contains updates throughout, including the authors’ recent work in the importance of solubility in drug development; new and currently used property methods, with a reduction of seldom-used methods; and exploration of computational modeling methods

Animal Models In Toxicology Second Edition

Author: Shayne C. Gad
Publisher: CRC Press
ISBN: 142001420X
Size: 30.77 MB
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Reflecting more than a decade’s worth of changes, Animal Models in Toxicology, Second Edition is a practical guide to the common statistical problems encountered in toxicology and the methodologies that are available to solve them. The book presents a historical review of the use of animal models and an overview of broad considerations of metabolism and relevance used in toxicology. Individual chapters covering the eight major species used in toxicology and experimental biology form the core of the book. With contributions from experts in toxicology, toxicological pathology, and species-specific metabolism, each of these chapters provide an excellent introductory “course” along with guidance to the literature for more detailed understanding. The book goes on to make the case for a range of species not commonly used for safety assessment studies but which may provide useful alternative models for some specific endpoints. The chapter authors discuss special considerations regarding the evaluation and interpretation of the clinical pathology of the eight major model species as well as how to select a model species and how to extrapolate the results to humans. They detail potential pitfalls and situations that cause either human or model to be significantly more sensitive than the other or totally irrelevant to each other. The book concludes with an overview of the increasingly complex laws and regulations that govern how laboratory animals are obtained, maintained, and utilized, and an appendix that provides a quick guide to commercial sources of laboratory animals.

Drug Bioavailability

Author: Han van de Waterbeemd
Publisher: John Wiley & Sons
ISBN: 3527605150
Size: 45.14 MB
Format: PDF
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The peroral application (swallowing) of a medicine means that the body must first resorb the active substance before it can begin to take effect. The efficacy of drug uptake depends on the one hand on the chemical characteristics of the active substance, above all on its solubility and membrane permeability. On the other hand, it is determined by the organism's ability to absorb pharmaceuticals by way of specific transport proteins or to excrete them. Since many pharmacologically active substances are poorly suited for oral intake, a decisive criterion for the efficacy of a medicine is its so-called bioavailability. Written by an international team from academia and the pharmaceutical industry, this book covers all aspects of the oral bioavailability of medicines. The focus is placed on methods for determining the parameters relevant to bioavailability. These range from modern physicochemical techniques via biological studies in vitro and in vivo right up to computer-aided predictions. The authors specifically address possibilities for optimizing bioavailability during the early screening stage for the active substance. Its clear structure and comprehensive coverage make this book equally suitable for researchers and lecturers in industry and teaching.

Pharmacokinetics And Metabolism In Drug Design

Author: Dennis A. Smith
Publisher: John Wiley & Sons
ISBN: 3527645292
Size: 12.70 MB
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In this new edition of a bestseller, all the contents have been brought upto-date by addressing current standards and best practices in the assessment and prediction of ADMET properties. Although the previous chapter layout has been retained, substantial revisions have been made, with new topics such as pro-drugs, active metabolites and transporters covered in detail in a manner useful to the Drug Discovery scientist. The authors discuss the parameters and processes important for the absorption, distribution and retention of drug compounds in the body, plus the potential problems created by their transformation into toxic byproducts. While aimed at all those dealing professionally with the development and application of pharmaceutical substances, the readily comprehensible style makes this book equally suitable for students of pharmacy and related subjects. Uniquely comprehensive, the book relates physicochemistry and chemical structure to pharmacokinetic properties and ultimately drug efficacy and safety.

Fundamentals Of Medicinal Chemistry

Author: Gareth Thomas
Publisher: John Wiley & Sons
ISBN: 0470871695
Size: 65.74 MB
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Provides a concise introduction to the chemistry of therapeutically active compounds, written in a readable and accessible style. The title begins by reviewing the structures and nomenclature of the more common classes of naturally occurring compounds found in biological organisms. An overview of medicinal chemistry is followed by chapters covering the discovery and design of drugs, pharmacokinetics and drug metabolism, The book concludes with a chapter on organic synthesis, followed by a brief look at drug development from the research stage through to marketing the final product. The text assumes little in the way of prior biological knowledge. relevant biology is included through biological topics, examples and the Appendices. Incorporates summary sections, examples, applications and problems Each chapter contains an additional summary section and solutions to the questions are provided at the end of the text Invaluable for undergraduates studying within the chemical, pharmaceutical and life sciences.

New Drug Development

Author: J. Rick Turner
Publisher: John Wiley & Sons
ISBN: 047007373X
Size: 28.44 MB
Format: PDF, ePub
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This book acquaints students and practitioners in the related fields of pharmaceutical sciences, clinical trials, and evidence-based medicine with the necessary study design concepts and statistical practices to allow them to understand how drug developers plan and evaluate their drug development. Two goals of the book are to make the material accessible to readers with minimal background in research and to be straightforward enough for self-taught purposes. By bringing the topic from the early discovery phase to clinical trials and medical practice, the book provides an indispensable overview of an otherwise confusing and fragmented set of topics. The author’s experience as a respected scientist, teacher of statistics, and one who has worked in the clinical trials arena makes him well suited to write such a treatise.

Drug Products For Clinical Trials Second Edition

Author: Donald Monkhouse
Publisher: CRC Press
ISBN: 082475462X
Size: 25.23 MB
Format: PDF, Mobi
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Addressing issues at the forefront of interest for the Clinical Trial Materials Professional (CTMP), this Second Edition highlights the most critical concepts related to the planning, manufacturing, packaging, labeling, distribution, reconciliation, and quality and regulatory control of clinical trial materials-offering an authoritative selection of chapters on the current and evolving state of clinical supplies operations by esteemed researchers and consultants in industry.