The aim of this book is to provide guidance for individuals who wish to learn about the exciting field of clinical research. The reader will gain a deep understanding of the approval process for modern pharmaceuticals used to treat cancer and other types of diseases. The reader will also learn the background of the various pharmaceutical companies and agencies such as the United States Food and Drug Administration working on these clinical research trials. The reader will gain a general knowledge of clinical research trials and how they are conducted. The primary focus will be the clinical trials process in the United States of America. An explanation of international clinical trials conduct is also mentioned in this book.