[The importance of scientific clinical trials].

Well-designed clinical trials have been the only ways to answer many questions as to the "uncertainty" of cancer treatment. However, general physicians and mass media have not been willing to accept clinical trials because they were experiments on patients. In order to break through the present bottleneck it is very important to recognize the clinical significance of clinical trials by physicians themselves and to establish a system for reviewing and managing protocol study and for collecting clinical data. It is also important to obtain honest informed consent from patients tested in clinical trials. To accumulate the scientific evidences from clinical trials was the best way to achieve significant advances in cancer therapy.