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Participating in Clinical
Trials
Frequently Asked Questions
30. Why would a clinical trial be stopped
early?
Clinical trials can be stopped any time in any phase of testing for
several reasons.
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Early results may show that the experimental treatment works much
better than the others. In these cases, researchers would offer the
experimental treatment to the control group.
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The study may find no difference between the control group and
treatment group, so further testing is useless.
(Answer continues on next page.)
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