Trials in people
Find out about our clinical trials process, how we work with doctors and volunteers throughout this process, and how to become a research volunteer. You can also access all the data from our trials in our Clinical Study Register.
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Clinical trial phases
There are always three, and sometimes four, phases in clinical trials. After the successful completion of each phase a gradually increased number of partcipants are involved in the next stage.
IE/COM/0015/14(1), date of preparation September 2015