A study is conducted to evaluate the action of a new oral antidiabetic drug in patients with a new onset type 2 diabetes. All patients involved in the study are informed that they would be treated with a new oral antidiabetic drug. They are divided into three groups and each group would be treated with a different dose. Drug assessment is determined based on testing serum glucose and HgA1C regularly throughout the study. Which of the following best describes this type of study? A- Case-control study B- Randomized controlled study C- Randomized clinical trial D- Open-labeled clinical trial E- Cross sectional study http://medical-usmle.com/?p=1070
