Clinical research is gaining importance as a career and as an industry, and is expected to provide jobs for thousands of B.Pharm,M.Pharm,MBBS and Science graduate.Continued progress in clinical research field has encouraged me to produce this book. This edition has been prepared by keeping in mind the basic need of Clinical Pharmacokinetic studies.Book provide an overview on four important domains these domains are clinical, Bioanalytical, Statistical and Data management.