Since the start of the twenty-first century, pharmaceutical industry professionals in Asian countries have made numerous attempts to attract clinical trials to the region. However, there still remains much to do in order to increase awareness about Asia and to win the confidence of pharmaceutical innovators and researchers worldwide. While the region offers significant opportunities for quality clinical research, the rapid growth of clinical research in the region has also posed many challenges due to the diverse nature of the population, racial profile, and multiple regulatory environments and cultures. To this end, this book focuses on the potential for clinical research in Asian countries and offers a guide to the opportunities and challenges for clinical research in the region. Following an introduction that provides an overview of this topic , each chapter focuses on the top twelve Asian countries, including Japan, India, China, South Korea and Thailand, and discusses the clinical research environment of that country. It gives an understanding of the key business segments, explains key factors in the environment surrounding the business and offers a perspective on future trends in clinical research in each country. The book concludes with a look of the importance of political, economic, socio-cultural, technological, legal and environmental factors (PESTLE analysis).