Clinical Trial: important phases

Abstract

Clinical trials are an advance level of research designs used in biomedical research. Every year several clinical trials are conducted across the world. Presently, developed countries are moving faster than before in planning and registering high quality clinical research. Increase in research funds, advancement in biotechnology and easily available research participants are attraction for many clinicians for their involvement in clinical research. This paper aimed to provide brief information on important phases of the clinical trials.