Wednesday, October 02, 2019 The CCTG IND.225 trial: A Phase II Study of the Assessment of Response to Pembrolizumab in Metastatic Melanoma: CT Texture Analysis as a Predictive Biomarker has been permanently closed/terminated. The main purpose of this study was to find out if a type of CT (computed topography) scan can help to know if pembrolizumab is working. This CT scan (called Texture Analysis) looks at the tumour in fine detail. The use of this type of CT scan has not been studied in patients with metastatic melanoma. Investigators want to see if this CT scan will show if some patients being treated with pembrolizumab respond better than others. One of the other purposes is to compare the costs within this trial to costs of the standard of care. Additional informtion:https://www.ctg.queensu.ca/trials/ind/i225