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What happens in a clinical trial?

In a clinical trial, there are usually two groups of patients:

  • those who receive the newer treatment (the intervention group)
  • those who receive standard treatment (the control group).

Standard treatment is the currently recommended treatment. In some cases, standard treatment may be no treatment. This is called best-supportive care.

Two groups of patients are needed, to see whether the newer treatment is better than standard treatment. Women who take part in a clinical trial cannot choose whether to have the newer treatment or standard treatment.

There are no additional costs for people who join a clinical trial.