Leila Fadel is a host of Morning Edition, as well as NPR's morning news podcast Up First.

Susan is an award-winning investigative reporter known for her relentless pursuit of the truth while advocating for consumers, exposing corruption and fraud, and holding the powerful accountable.

A clinical trial is defined by NIH as a research study in which one or more human subjects are prospectively assigned to one or more interventions (which may include placebo or other control) to ...