About CTCAE Rápido
What it is
Fast lookup of adverse event grades in CTCAE v6.0 (Common Terminology Criteria for Adverse Events), published by the US National Cancer Institute (NCI) in July 2025. Type or say the event and see grades 1 to 5 instantly. There is no clinical guidance: the site shows the scale only.
How to read the grades
General CTCAE scale; each event has its own description, which is the one that applies.
- G1Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated.
- G2Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate instrumental ADL.
- G3Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care ADL.
- G4Life-threatening consequences; urgent intervention indicated.
- G5Death related to AE.
Instrumental ADL: preparing meals, shopping, using the telephone, managing money. Self-care ADL: bathing, dressing and undressing, feeding self, using the toilet, taking medications, and not bedridden.
Where the data comes from
Official CTCAE v6.0 spreadsheet (MedDRA 28.0) downloaded from the NCI website, including the January 2026 errata. The English text is the original. Portuguese and Spanish versions are unofficial translations made for this site; when in doubt, the English original prevails.
Privacy
The site uses no cookies, shows no ads and collects no personal or patient data. Favorites, theme and language are stored only in your browser. Voice search uses the browser’s own speech recognition (Chrome and Edge send audio to Google or Microsoft to transcribe it); CTCAE Rápido never receives or stores audio.
Who makes it
Gabriel Chácara, medical oncologist (CRM MG 63539, Brazil). Contact: [email protected].