Clinical trials are a group of biomedical or behavioral efficacy and safety studies, completed in humans, that are usually broken down into four phases. Phase I clinical trials test a treatment’s safety, dosage range and side effects in a small group of healthy people to determine if a treatment can be checked for efficacy. Phase II is initiated with a therapeutic dose to determine the treatment’s effectiveness and further safety. Phase III clinical trials are administered to a larger group of people to finally verify efficacy and safety. Phase IV studies, or post-marketing studies, are completed after the treatment has been brought to market to determine the effect of long-term use in a wide range of patient populations. There are a wide range of topics covered in our clinical trial webinars – from tips on clinical trial start-up and adaptive trials to risk-based monitoring and best practices for clinical trial enrollment.