Phase III studies usually involve 500 to 5000 patients, and patient demographics should as far as possible be representative of the population in which the new drug will ultimately be used
Phase III studies usually involve 500 to 5000 patients, and patient demographics should as far as possible be representative of the population in which the new drug will ultimately be used. 15 years to take a drug from laboratory discovery to FDA approval. Out of every 5-10 000 compounds evaluated pre-clinically, only five enter clinical trials, and of these only one gains regulatory approval. More information on the efficacy, safety and mechanism of action should be sought from early-stage clinical trials to minimize late-stage attrition. Medical imaging has an enlarging role in new drug development. This progress is ex229 (compound 991) driven by several factors, including the growing technical capabilities of imaging methods and the increasing focus by drug developers on chronic diseases. The application of medical imaging in pharmaceutical…