OnCo
termsTerm

Deauville score and PET-adapted therapy

aka Deauville, Deauville score, interim PET, end-of-treatment PET, PET-adapted, PET-guided, PET-negative, PET-positive, PET-directed, Lugano classification, Lugano, metabolic response, complete metabolic response

A 1-to-5 scale for how brightly a lymphoma lights up on a PET scan, compared with the liver and the middle of the chest. Scores of 1-3 after two cycles mean the treatment is working and allow it to be shortened; 4-5 means intensify.

The Deauville five-point scale (1 no uptake; 2 ≤ mediastinum; 3 ≤ liver; 4 moderately above liver; 5 markedly above or new lesions) underpins the Lugano response criteria for lymphoma. Interim PET after two cycles is used to omit bleomycin or radiotherapy in Hodgkin lymphoma (RATHL, HD16/HD17), to escalate to BEACOPP in non-responders, and to shorten R-CHOP in early-stage DLBCL (FLYER). PET-adapted de-escalation is spreading to HER2-positive breast cancer (PHERGain, omitting chemotherapy in PET responders). A complete metabolic response is the PET equivalent of complete remission.

Category
Pathology & biomarkers

Connected

11top