TABLE 1.

Therapy Response Assessment Criteria Based on Imaging

		Non-PD
Response criteria	Imaging	Complete response	Partial response	Stable response	PD
PCWG3 imaging	CT (2)	Disappearance of all lesions	Decrease of ≥30% in sum of target lesions (without new lesion or nontarget lesion progression)	Not meeting criteria for partial response, complete response, or progressive disease	Increase of ≥20% in sum of target lesions, unequivocal progression of nontarget lesions, or appearance of new lesions
	BS (14)	Disappearance of all suggestive lesions	No new lesion or appearance of <2 new lesions	No new lesion or appearance of <2 new lesions	Appearance of at least ≥2 new lesions confirmed on subsequent scan
EAU/EANM PSMA	PSMA PET/CT (6)	Disappearance of any lesion with tracer uptake	Reduction of uptake and tumor PET volume by >30%	Change in uptake and tumor PET volume by ≤30%, without evidence of new lesions	Increase of uptake or tumor PET volume by >30%, appearance of ≥2 new lesions (with or without CT change), or both