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Clinical trials are research studies involving patients, which compare a new or different type of treatment with the best treatment currently available (if there is one). This section of the website contains more information and short films about clinical trials, particularly randomised controlled trials.

The MRC Clinical Trials Unit runs trials in a range of disease areas. We specialise in trials in infectious diseases and in cancer, but we also run trials in other areas.

Most of the trials we run are randomised controlled trials. The following pages give more information about clinical trials.

We also have a glossary of terms used on this website, and answers to some frequently asked questions about our work.

Hanging orange folders for clinical trials