Because of a lapse in government funding, the information on this website may not be up to date transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit

Updates regarding government operating status and resumption of normal operations can be found at

Taking Part in Cancer Treatment Research Studies

  • Resize font
  • Print
  • Email
  • Facebook
  • Twitter
  • Google+
  • Pinterest

This booklet is for people with cancer who are thinking about joining a clinical trial, which is a research study that involves people.

This booklet explains:

  • How clinical trials take place in a series of steps, called phases
  • How your rights are protected
  • The process of randomization and why it is important
  • The benefits and risks of taking part
  • Questions for you to think about and discuss with your doctor
  • How to find a clinical trial

By looking closely at all your treatment options, including clinical trials, you are taking an active role in a decision that affects your life. This booklet can help you talk with your family, friends, and doctor and make a decision that is right for you.

The information in this booklet was last updated in November 2016.