CTCAE v4.0!

The National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) is a standardized system to quantify or grade the severity of adverse events (AE) that occur with drug treatment or from medical devices. A definition of mild (grade 1), moderate (2), severe (3), life-threatening (4) and death related to AE (5) events is provided for each AE term. May 29, 2009NIH publication # 09-7473