CTCAE grading
Standardized severity classification system for adverse events in cancer treatment.
Full Definition
Common Terminology Criteria for Adverse Events (CTCAE) grading provides a standardized framework for classifying the severity of treatment-related toxicities in oncology. The system uses a 5-point scale where Grade 1 represents mild symptoms requiring no intervention, Grade 2 indicates moderate symptoms requiring minimal intervention, Grade 3 denotes severe symptoms requiring medical intervention, Grade 4 represents life-threatening consequences requiring urgent intervention, and Grade 5 indicates death related to the adverse event. CTCAE grading is essential for clinical trial reporting, treatment modification decisions, and communication between healthcare providers about toxicity severity.
Usage
Usage note: Specify CTCAE version (currently 5.0) as criteria have evolved over time.
In Context
- "The patient experienced Grade 3 dermatitis according to CTCAE grading criteria." — toxicity assessment report
- "Treatment was held due to Grade 4 neutropenia per CTCAE grading guidelines." — clinical progress note