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Participation in Clinical Trials  I  Glossary  I  General Information on Clinical Trials

An Introduction to Clinical Trials
Choosing to participate in a clinical trial is an important personal decision. The following frequently asked questions provide introductory information about clinical trials. In addition, it is often helpful to talk to a physician, family members, or friends about deciding to join a trial. After identifying some trial options, the next step is to contact the study research staff and ask questions about specific trials.
»  What is a clinical trial?
»  Why participate in a clinical trial?
»  Where do the ideas for trials come from?
»  Who sponsors clinical trials?
»  What is a protocol?
»  What is a placebo?
»  What is a control or control group?
»  What are the different types of clinical trials?
»  What are the phases of clinical trials?

 
   

What is a protocol?

A protocol is a study plan on which all clinical trials are based. The plan is carefully designed to safeguard the health of the participants as well as answer specific research questions. A protocol describes what types of people may participate in the trial; the schedule of tests, procedures, medications, and dosages; and the length of the study. While in a clinical trial, participants following a protocol are seen regularly by the research staff to monitor their health and to determine the safety and effectiveness of their treatment.

 
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