New drug discovery and development is a complex, flexible and cost-effective but systematic process that follows a sequence of clinical steps, rules and regulations governed by the experienced regulatory authorities in each country. The rules laid down by the experienced authorities consistently have need of the code of ethics by which every individual involved in clinical research has to stand. Besides these ethical principles, a clinical trial involves multidisciplinary functions which require concepts and approaches, using modern research tools and techniques. In this book, the authors...