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What should I ask my doctor about clinical trials?

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When a new medical treatment is studied for the first time in humans, scientists don't know exactly how it will work. With any new treatment, there are possible risks as well as benefits. Clinical trials help physicians discover the answers to these questions:

  • Is the treatment safe and effective?
  • How well does the treatment work?
  • Is the treatment potentially better than the treatments currently available?
  • What are the side effects and risks of the treatment?
Reviewed by Nayana Ambardekar on October 28, 2017

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What are clinical trial phases?

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