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phase I trial

  1. Home
  2. Cancer information
  3. Resources
  4. Glossary
  5. phase I trial
Print

Description

The first step in a clinical trial in which researchers study the safety and side effects of a new treatment, the best way to give the treatment (for example, by mouth, injection or intravenously) and the best dose (the highest dose that does not cause harmful side effects). Phase I trials include a small group of participants.

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