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| Author | : Marzena Rams-Baron |
| Publisher | : Springer |
| Total Pages | : 234 |
| Release | : 2018-02-09 |
| Genre | : Science |
| ISBN | : 3319720023 |
Download Amorphous Drugs Book in PDF, ePub and Kindle
This book explains theoretical and technological aspects of amorphous drug formulations. It is intended for all those wishing to increase their knowledge in the field of amorphous pharmaceuticals. Conversion of crystalline material into the amorphous state, as described in this book, is a way to overcome limited water solubility of drug formulations, in this way enhancing the chemical activity and bioavailability inside the body. Written by experts from various fields and backgrounds, the book introduces to fundamental physical aspects (explaining differences between the ordered and the disordered solid states, the enhancement of solubility resulting from drugs amorphization, physical instability and how it can be overcome) as well as preparation and formulation procedures to produce and stabilize amorphous pharmaceuticals. Readers will thus gain a well-funded understanding and find a multi-faceted discussion of the properties and advantages of amorphous drugs and of the challenges in producing and stabilizing them. The book is an ideal source of information for researchers and students as well as professionals engaged in research and development of amorphous pharmaceutical products.
| Author | : Ann Newman |
| Publisher | : John Wiley & Sons |
| Total Pages | : 502 |
| Release | : 2015-03-09 |
| Genre | : Science |
| ISBN | : 1118455207 |
Download Pharmaceutical Amorphous Solid Dispersions Book in PDF, ePub and Kindle
Providing a roadmap from early to late stages of drug development, this book overviews amorphous solid dispersion technology – a leading platform to deliver poorly water soluble drugs, a major hurdle in today’s pharmaceutical industry. • Helps readers understand amorphous solid dispersions and apply techniques to particular pharmaceutical systems • Covers physical and chemical properties, screening, scale-up, formulation, drug product manufacture, intellectual property, and regulatory considerations • Has an appendix with structure and property information for polymers commonly used in drug development and with marketed drugs developed using the amorphous sold dispersion approach • Addresses global regulatory issues including USA regulations, ICH guidelines, and patent concerns around the world
| Author | : Ann Newman |
| Publisher | : John Wiley & Sons |
| Total Pages | : 505 |
| Release | : 2015-02-27 |
| Genre | : Science |
| ISBN | : 111890138X |
Download Pharmaceutical Amorphous Solid Dispersions Book in PDF, ePub and Kindle
Providing a roadmap from early to late stages of drug development, this book overviews amorphous solid dispersion technology – a leading platform to deliver poorly water soluble drugs, a major hurdle in today’s pharmaceutical industry. • Helps readers understand amorphous solid dispersions and apply techniques to particular pharmaceutical systems • Covers physical and chemical properties, screening, scale-up, formulation, drug product manufacture, intellectual property, and regulatory considerations • Has an appendix with structure and property information for polymers commonly used in drug development and with marketed drugs developed using the amorphous sold dispersion approach • Addresses global regulatory issues including USA regulations, ICH guidelines, and patent concerns around the world
| Author | : Navnit Shah |
| Publisher | : Springer |
| Total Pages | : 702 |
| Release | : 2014-11-21 |
| Genre | : Medical |
| ISBN | : 1493915983 |
Download Amorphous Solid Dispersions Book in PDF, ePub and Kindle
This volume offers a comprehensive guide on the theory and practice of amorphous solid dispersions (ASD) for handling challenges associated with poorly soluble drugs. In twenty-three inclusive chapters, the book examines thermodynamics and kinetics of the amorphous state and amorphous solid dispersions, ASD technologies, excipients for stabilizing amorphous solid dispersions such as polymers, and ASD manufacturing technologies, including spray drying, hot melt extrusion, fluid bed layering and solvent-controlled micro-precipitation technology (MBP). Each technology is illustrated by specific case studies. In addition, dedicated sections cover analytical tools and technologies for characterization of amorphous solid dispersions, the prediction of long-term stability, and the development of suitable dissolution methods and regulatory aspects. The book also highlights future technologies on the horizon, such as supercritical fluid processing, mesoporous silica, KinetiSol®, and the use of non-salt-forming organic acids and amino acids for the stabilization of amorphous systems. Amorphous Solid Dispersions: Theory and Practice is a valuable reference to pharmaceutical scientists interested in developing bioavailable and therapeutically effective formulations of poorly soluble molecules in order to advance these technologies and develop better medicines for the future.
| Author | : Harry G. Brittain |
| Publisher | : CRC Press |
| Total Pages | : 656 |
| Release | : 2018-11-12 |
| Genre | : Medical |
| ISBN | : 1420073222 |
Download Polymorphism in Pharmaceutical Solids Book in PDF, ePub and Kindle
Using clear and practical examples, Polymorphism of Pharmaceutical Solids, Second Edition presents a comprehensive examination of polymorphic behavior in pharmaceutical development that is ideal for pharmaceutical development scientists and graduate students in pharmaceutical science. This edition focuses on pharmaceutical aspects of polymorphism a
| Author | : Mary Kleppe |
| Publisher | : |
| Total Pages | : 212 |
| Release | : 2018 |
| Genre | : Amorphous substances |
| ISBN | : |
Download The Effects of Temperature and Dissolution Media on Crystallization of Amorphous Drugs and Potential Effects on Predicting Bioavailability Book in PDF, ePub and Kindle
Poorly soluble crystalline drug candidates are often made amorphous to increase their solubility with the intent to enhance oral bioavailability, thus improving the likelihood of becoming a commercial drug product. Currently, considerable time, material and effort are expended to determine whether an amorphous approach will provide the required bioavailability improvement. However, often the solubility enhancement of the amorphous form is not fully realized in vivo due to solution-mediated phase transformation (SMPT). This study investigated the effects of key factors, through experimentation and modeling, that affect SMPT and model the potential effects of SMPT on bioavailability. Sparsely parameterized biopharmaceutical models were developed to quickly obtain estimates of the bioavailability from in vitro dissolution data for compounds that precipitate in the gastrointestinal tract. The models highlight the complex effects of drug absorption rate on expected in vivo drug peak concentration and duration in the small intestinal lumen from where orally administered drug is absorbed, depending on whether the peak concentration or the peak duration is assumed to better translate from in vitro to in vivo. Furthermore, a model with limited number of input variables allowed us to quantify variation in bioavailability based on known variations of one or more model input parameters. The differences in SMPT of a supersaturating system were compared in biorelevant media and a medium without surfactants. Amorphous spironolactone underwent SMPT to a channel hydrate in all three media which was confirmed by the decrease in dissolution rates assessed in a flow-through dissolution apparatus, as well as by the appearance of crystals on the amorphous solid surface detected by polarized light microscopy. Longer duration of supersaturation was found in both biorelevant media, compared to the medium without surfactants. The contribution(s) of the molecular mobility of the hydrated amorphous drug and degree of supersaturation to the rate of SMPT of amorphous spironolactone. The degree of supersaturation was not the sole determinant of SMPT. Rather, mobility of the solid at/near the dissolution surface of amorphous material, relative to 37°C (id est, physiological relevant temperature) is more likely to be govern the extent and time course of dissolution enhancement by amorphous drugs.
| Author | : Robert O. Williams III |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 656 |
| Release | : 2011-12-04 |
| Genre | : Medical |
| ISBN | : 1461411440 |
Download Formulating Poorly Water Soluble Drugs Book in PDF, ePub and Kindle
This volume is intended to provide the reader with a breadth of understanding regarding the many challenges faced with the formulation of poorly water-soluble drugs as well as in-depth knowledge in the critical areas of development with these compounds. Further, this book is designed to provide practical guidance for overcoming formulation challenges toward the end goal of improving drug therapies with poorly water-soluble drugs. Enhancing solubility via formulation intervention is a unique opportunity in which formulation scientists can enable drug therapies by creating viable medicines from seemingly undeliverable molecules. With the ever increasing number of poorly water-soluble compounds entering development, the role of the formulation scientist is growing in importance. Also, knowledge of the advanced analytical, formulation, and process technologies as well as specific regulatory considerations related to the formulation of these compounds is increasing in value. Ideally, this book will serve as a useful tool in the education of current and future generations of scientists, and in this context contribute toward providing patients with new and better medicines.
| Author | : Allen C Templeton |
| Publisher | : Springer |
| Total Pages | : 510 |
| Release | : 2014-10-31 |
| Genre | : Medical |
| ISBN | : 1493913999 |
Download Discovering and Developing Molecules with Optimal Drug-Like Properties Book in PDF, ePub and Kindle
This authoritative volume provides a contemporary view on the latest research in molecules with optimal drug-like properties. It is a valuable source to access current best practices as well as new research techniques and strategies. Written by leading scientists in their fields, the text consists of fourteen chapters with an underlying theme of early collaborative opportunities between pharmaceutical and discovery sciences. The book explores the practical realities of performing physical pharmaceutical and biopharmaceutical research in the context of drug discovery with short timelines and low compound availability. Chapters cover strategies and tactics to enable discovery as well as predictive approaches to establish, understand and communicate risks in early development. It also examines the detection, characterization, and assessment of risks on the solid state properties of advanced discovery and early development candidates, highlighting the link between solid state properties and critical development parameters such as solubility and stability. Final chapters center on techniques to improve molecular solubilization and prevent precipitation, with particularly emphasis on linking physiochemical properties of molecules to formulation selection in preclinical and clinical settings.
| Author | : Dennis Douroumis |
| Publisher | : John Wiley & Sons |
| Total Pages | : 404 |
| Release | : 2012-04-24 |
| Genre | : Science |
| ISBN | : 1118307879 |
Download Hot-Melt Extrusion Book in PDF, ePub and Kindle
Hot-melt extrusion (HME) - melting a substance and forcing it through an orifice under controlled conditions to form a new material - is an emerging processing technology in the pharmaceutical industry for the preparation of various dosage forms and drug delivery systems, for example granules and sustained release tablets. Hot-Melt Extrusion: Pharmaceutical Applications covers the main instrumentation, operation principles and theoretical background of HME. It then focuses on HME drug delivery systems, dosage forms and clinical studies (including pharmacokinetics and bioavailability) of HME products. Finally, the book includes some recent and novel HME applications, scale -up considerations and regulatory issues. Topics covered include: principles and die design of single screw extrusion twin screw extrusion techniques and practices in the laboratory and on production scale HME developments for the pharmaceutical industry solubility parameters for prediction of drug/polymer miscibility in HME formulations the influence of plasticizers in HME applications of polymethacrylate polymers in HME HME of ethylcellulose, hypromellose, and polyethylene oxide bioadhesion properties of polymeric films produced by HME taste masking using HME clinical studies, bioavailability and pharmacokinetics of HME products injection moulding and HME processing for pharmaceutical materials laminar dispersive & distributive mixing with dissolution and applications to HME technological considerations related to scale-up of HME processes devices and implant systems by HME an FDA perspective on HME product and process understanding improved process understanding and control of an HME process with near-infrared spectroscopy Hot-Melt Extrusion: Pharmaceutical Applications is an essential multidisciplinary guide to the emerging pharmaceutical uses of this processing technology for researchers in academia and industry working in drug formulation and delivery, pharmaceutical engineering and processing, and polymers and materials science. This is the first book from our brand new series Advances in Pharmaceutical Technology. Find out more about the series here.
| Author | : V. P. Torchilin |
| Publisher | : Imperial College Press |
| Total Pages | : 758 |
| Release | : 2006 |
| Genre | : Technology & Engineering |
| ISBN | : 186094907X |
Download Nanoparticulates as Drug Carriers Book in PDF, ePub and Kindle
Written by key experts in the field of nanomedicine, this book provides a broad introduction to the important field of nanomedicine and application of nanotechnology for drug delivery. It covers up-to-date information regarding various nanoparticulate drug delivery systems, describes the various opportunities for the application of nanoparticular drug carriers in different areas of clinical medicine, and analyzes already available information on their clinical applications. This book can be used as an advanced textbook by graduate students and young scientists and clinicians at the early stages of their career. It is also suitable for non-experts from related areas of chemistry, biochemistry, molecular biology, biomedical engineering, physiology, experimental and clinical medicine, and pharmaceutical sciences, who are interested in general problems of drug delivery and drug targeting, as well as in more specialized topics of using nanoparticulate-mediated drug delivery approaches in the individual areas of clinical medicine. Prof Torchilin is an expert in Nanomedicine and a recipient of numerous awards including the Lenin Prize in Science & Technology of the former USSR, membership in the European Academy of Sciences, and AAPS Research Achievement Award in Pharmaceutics and Drug Delivery. He served as an Associate Professor of Radiology at Harvard Medical School before joining Northeastern University as the Chairman of the Department of Pharmaceutical Sciences. Sample Chapter(s). Chapter 1: Introduction. Nanocarriers for Drug Delivery: Needs and Requirements (442 KB). Contents: Nanoparticle Flow: Implications for Drug Delivery (A T Florence); Polymer Micelles as Drug Carriers (E V Batrakova et al.); Lipoproteins as Pharmaceutical Carriers (S Liu et al.); Dendrimers as Nanoparticular Drug Carriers (S Svenson & D A Tomalia); Cells and Cell Ghosts as Drug Carriers (J M Lanao & M L Sayalero); Magnetic Nanoparticles as Drug Carriers (U O Hnfeli & M Chastellain); Liposomal Drug Carriers in Cancer Therapy (A A Gabizon); Delivery of Nanoparticles to the Cardiovascular System (B-A Khaw); Nanoparticles for Targeting Lymphatics (W Phillips); Nanoparticular Carriers for Ocular Drug Delivery (A Sanchez & M J Alonso); and other papers. Readership: Graduate students, academics in nanomedicine, clinicians, pharmacologists, pharmacists, bioengineers, researchers in biotechnology and diagnostic imaging."
