‘Striking’ potential for ctDNA as a prognostic for melanoma outcomes

Circulating tumor DNA levels a few weeks after immunotherapy initiation could help identify patients with melanoma at greatest risk for recurrence or death.
A retrospective analysis showed individuals who had decreases in ctDNA levels from baseline had more than 30 times the likelihood of achieving disease control, 20-times greater odds of having an objective response, more than an 80% improvement in PFS and 70% improvement in OS compared with those who had increased ctDNA levels.
“Those were striking differences at a very early time point,” Vincent T. Ma, MD, assistant professor in the