Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle. Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle.
The term âfutilityâ is used to refer to the inability of a clinical trial to achieve its objectives. In particular, stopping a clinical trial when the interim results suggest that it is unlikely to achieve statistical significance can save resources that could be used on more promising research.
Medical Definition of Clinical trials Our Clinical Trials Main Article provides a comprehensive look at the who, what, when and how of Clinical Trials Clinical trials: Trials to evaluate the effectiveness and safety of medications or medical devices by monitoring their effects on large groups of people. Clinical research trials may be conducted by government health agencies such as NIH, researchers affiliated with a hospital or university medical program, independent researchers, or private industry.