What Happens in a Phase III Cancer Prevention Clinical Trial?
If you decide to join a Phase
III cancer prevention trial, you'll work with a research team.
Team members may include doctors, nurses, social workers, and
other health care providers. They will give you clear instructions.
You may be asked to take a medication. You also may be asked
to keep a diary or answer questions about how you're feeling.
During the study, a research
team will review your health carefully. (This means that you
may have more tests and doctor visits than you would if you
weren't in the study.) Team members also may check on you for
a while after the trial ends (followup). To make the trial results
as reliable as possible, it is important for you to follow the
research team's instructions. That means having all doctor visits
and tests, taking medicines on time, and filling out logs or
answering questions. Careful review and followup help you and
scientists find out quickly what agent is best for reducing
cancer risk.
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National Cancer Institute
April 1999
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