A clinical trial is a medical research study involving human subjects. They are often designed to test new medications or treatments. Clinical trials are completely voluntary to join and can be stopped at any time for any reason. You can only join a clinical trial if you meet certain requirements or qualifications.
Technically, there are four different types of clinical trials performed in humans: Phase I, Phase II, Phase III, and Phase IV. Phase I studies test whether or not a new drug is safe and to identify side effects. These studies are only done on a small number of people, typically under 100. Phase II studies are done to determine drug dosing and efficacy in an attempt to figure out how well the medication works. Phase III studies are done on larger groups of people (usually in the thousands) and determine efficacy, effectiveness, and further monitor side effects. Often several Phase III studies need to be performed for a drug to be approved by the Food and Drug Administration (FDA). Phase IV studies are then done once a drug has been approved by the FDA to further track overall risks, benefits, and optimal use. It is important to note that all drugs must start at Phase I and successfully pass each phase before being approved for the next.
New Age Medical Research Corporation performs Phase II, Phase III, and Phase IV trials.