A clinical researcher is a health professional who works directly with patients, or uses data from patients, to do research on health and disease and to develop new treatments. Clinical researchers may also do research on how health care practices affect health and disease. Clinical investigators are clinical researchers who are involved in a clinical trial.
National Cancer Institute (NCI) Dictionary of Cancer Terms – Clinical Researcher
NCATS Toolkit for Patient-Focused Therapy Development: With Academic Researchers and Clinicians
NCATS Toolkit for Patient-Focused Therapy Development: Organize In-Person Scientific Meetings