Clinical research studies are required by the government to test new investigational medicines. Every investigational medicine must have studies completed to show whether they are safe and effective before they can be approved to be taken.
These studies are led by doctors to improve the understanding of a particular disease and may lead to potential new treatment options.
People decide to participate in clinical studies for a variety of reasons. Some wish to contribute to research to help others with the same condition. Others may wish to try a different approach to treating their condition.