NCI CTCAE v5.0
Clinical Research Tool

Map findings to
CTCAE terminology

Describe a patient observation in plain language. Get the correct NCI CTCAE v5.0 adverse event term and grade definitions instantly.

v5.0
CTCAE Version
800+
AE Terms
26
System Organ Classes
Free
Always
Clinical description or observation
Try:

Press Ctrl + Enter to search

Enter a clinical description above to find matching CTCAE v5.0 terms

Important: This tool is intended as a reference aid only. Always verify results against the official NCI CTCAE v5.0 document. Protocol-specific guidance and clinical judgment supersede all suggestions made by this tool.