17.2 ctDNA

Longitudinal changes in tumour size since baseline for patients by changes in ctDNA status (clearance, decrease or increase) since baseline.

A data frame with 270 rows and 5 variables:

• id Patient ID
• cohort Study Cohort: A = Squamous cell carcinoma of soft pallate, B = Triple negative breast cancer, C = Ovarian, high grade serous, D = Melanoma, E = Other Solid Tumor
• ctdna_status Change in ctDNA since baseline
• time Number of weeks on treatment
• size_change Percentage change in tumour measurement