A concise guide and powerful software utility programme that provides a non-technical blueprint for the design and analysis of survival clinical trials. The book features a fast and easy-to-use interactive software programme that enables researchers to calculate the number of patients needed to complete their clinical trials. It allows clinical researchers to write more effective protocols or research grant proposals in less time than previously; they are given an insight into how biostaticians analyze trial data, and discover what "p-values" really tell them. The software allows changing parameters one at a time for easy browsing over alternate planning parameter configurations, The package ia aimed at pharmaceutical companies, biostatisticians, and pharmaceutical researchers.