Clinical study design

A clinical study design is like a plan that tells scientists how to do an experiment. It helps scientists find out if a new medicine works or if it is safe. It involves making sure that people in the study group are similar to each other, so that the researchers can have a fair test. The researchers will decide before the study starts how many people will be in the study, who those people will be and what tests should be done. Everyone involved in the study follows the plan, so the experiment is done with consistency and the results are reliable.