What Are Clinical Trial Phases?

What Are Clinical Trial Phases?
This video explains the main phases of clinical trials.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.
What Are Clinical Trial Phases?
This video explains the main phases of clinical trials.