Participating in Clinical Trials

Frequently Asked Questions

5. What is a prevention trial?

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Prevention trials study ways to reduce the risk of getting a disease. These trials attempt to find out if

• lifestyle changes, such as exercising more, getting more sleep, keeping mentally active, or eating nutritious foods, can prevent a problem
• taking certain medicines, vitamins, or getting vaccines will prevent a disease in people who have never had the disease or prevent a disease from returning.