The book presents an innovative technology based on injection of a very weak current to trace the quantity of a drug carried immediately after the administration. The book makes the reader familiar with the technology, from the conception through the design of the instrument, up to the preliminary clinical applications. In the first chapter, the method of transdermal drug delivery and the use of impedance spectroscopy in the dermatological field are presented. The second chapter describes a screening measurement campaign aimed at proving the feasibility of the assessment method and identifying the bandwidth of interest. The prototyping, validation and characterization of an instrument to measure the amount of drug delivered (DUSM: Drug Under Skin Meter) are presented in chapter three. In the fourth chapter three experimental campaigns, based on the electrical analysis of the biological tissue behavior due to the drug delivery, are reported: (i) laboratory emulation on eggplants, (ii) ex-vivo tests on pig ears, and finally (iii) in-vivo tests on human volunteers. In the fifth chapter a behavioral model, based on Finite Elements and Partial Differential Equation, of an impedance-based measurement system for assessing the drug released under the skin, during transdermal delivering, is proposed. The last chapter is dedicated to present a campaign in order to prove the suitability for insulin therapy applications. This book is intended for biomedical engineers, biomedical engineering students, operators working in the field of biomedical instrumentation, biotechnologists, and technicians of transdermal vehiculation.

Presents authoritative state-of-the-art discussions of the key issues pertinent to transdermal drug delivery, examining those topics necessary to enable a critical evaluation of a drug candidate's potential to be delivered across the skin; from physical chemistry and assessment of drug permeability to available enhancement technolgies, to regulatory approval.

With the improvements in formulation science and certain transdermal delivery technologies, the non-invasive mode of drug delivery is now ready to compete with traditional methods of oral and injectible routes of drug delivery. The Handbook of Non-Invasive Drug Delivery Systems encompasses the broad field of non-invasive drug delivery systems that include drug delivery via topical, transdermal-passive, transdermal-active (device- aided enhanced penetration), trans-mucosal membrane, trans-ocular membrane as well as delivery via alveolar membrane from inhaled medication. Patient compliance has been found to be much higher when administrated by non-invasive routes and therefore they are considered to be a preferred mode of drug delivery. The book includes both science and technological aspects of new drug delivery systems. Its unique focus is that it is on new drug delivery systems that are considered to be "non-invasive". Other unique features include a chapter on Regulatory Aspects of non-invasive systems and one on FDA guidance for topical nano-drug delivery. Two chapters covering market trends and perspectives, as well as providing guidance to those marketing such systems are also included.

The book presents an innovative technology based on injection of a very weak current to trace the quantity of a drug carried immediately after the administration. The book makes the reader familiar with the technology, from the conception through the design of the instrument, up to the preliminary clinical applications. In the first chapter, the method of transdermal drug delivery and the use of impedance spectroscopy in the dermatological field are presented. The second chapter describes a screening measurement campaign aimed at proving the feasibility of the assessment method and identifying the bandwidth of interest. The prototyping, validation and characterization of an instrument to measure the amount of drug delivered (DUSM: Drug Under Skin Meter) are presented in chapter three. In the fourth chapter three experimental campaigns, based on the electrical analysis of the biological tissue behavior due to the drug delivery, are reported: (i) laboratory emulation on eggplants, (ii) ex-vivo tests on pig ears, and finally (iii) in-vivo tests on human volunteers. In the fifth chapter a behavioral model, based on Finite Elements and Partial Differential Equation, of an impedance-based measurement system for assessing the drug released under the skin, during transdermal delivering, is proposed. The last chapter is dedicated to present a campaign in order to prove the suitability for insulin therapy applications. This book is intended for biomedical engineers, biomedical engineering students, operators working in the field of biomedical instrumentation, biotechnologists, and technicians of transdermal vehiculation.

Practical drug development approaches presented by leading experts Designed to support the development of new, effective therapeutics, Topical and Transdermal Drug Delivery: Principles and Practice explains the principles underlying the field and then demonstrates how these principles are put into practice in the design and development of new drug products. Drawing together and reviewing the latest research findings, the book focuses on practical, tested, and proven approaches that are backed by industry case studies and the authors' firsthand experience. Moreover, the book emphasizes the mechanistic information that is essential for successful drug product development. Topical and Transdermal Drug Delivery: Principles and Practice is divided into two parts: Part One, Current Science, Skin Permeation, and Enhancement Approaches, offers readers a fundamental understanding of the underlying science in the field. It describes the principles and techniques needed to successfully perform experimental approaches, covering such issues as skin permeation, enhancement, and assessment. Part Two, Topical and Transdermal Product Development, guides readers through the complete product development process from concept to approval, offering practical tips and cautions from experts in the field. This part also discusses regulations that are specific to the development of dermal drug products. The final chapter explores current and future trends, forecasting new development techniques and therapeutics. Throughout the book, the authors clearly set forth the basic science and experimental procedures, making it possible for researchers to design their own experimental approaches and accurately interpret their results. With contributions from experienced drug researchers, this text is highly recommended for all researchers involved in topical and transdermal product development who need to know both the state of the science and the standards of practice.

Transdermal Drug Delivery: Concepts and Application provides comprehensive background knowledge and documents the most recent advances made in the field of transdermal drug delivery. It provides comprehensive and updated information regarding most technologies and formulation strategies used for transdermal drug delivery. There has been recent growth in the number of research articles, reviews, and other types of publications in the field of transdermal drug delivery. Research in this area is active both in the academic and industry settings. Ironically, only about 40 transdermal products with distinct active pharmaceutical ingredients are in the market indicating that more needs to be done to chronicle recent advances made in this area and to elucidate the mechanisms involved. This book will be helpful to researchers in the pharmaceutical and biotechnological industries as well as academics and graduate students working in the field of transdermal drug delivery and professionals working in the field of regulatory affairs focusing on topical and transdermal drug delivery systems. Researchers in the cosmetic and cosmeceutical industries, as well as those in chemical and biological engineering, will also find this book useful. Captures the most recent advancements and challenges in the field of transdermal drug delivery Covers both passive and active transdermal drug delivery strategies Explores a selection of state-of-the-art transdermal drug delivery systems