Clinical trials are conducted in four distinct phases that allow our physicians to answer different questions about the efficacy and safety of the drug or treatment. At Unison, we primarily focus on phase III and phase IV trials.
Phase I
These are experimental trials that are performed on a small group of healthy people to evaluate a brand new drug’s safety and side effects for the first time.
Phase II
Once a treatment or drug has passed its phase I trials, it will be given to a slightly larger group of people who have the disease intended to be treated or controlled by the study drug to assess its effectiveness and confirm its safety.
Phase III
In phase III trials, the drug or treatment will be administered to an even larger group of people to confirm its effectiveness, gain more information regarding side effects and optimal dose and collect critical safety information.
Phase IV
These post-marketing trials are designed to acquire additional information regarding risks, benefits and best uses for an already approved drug.
