In a retrospective study conducted at the University Hospital Cologne, the radiological criteria iRECIST and RECIST 1.1 were compared for assessing treatment response in melanoma and NSCLC patients receiving immune checkpoint inhibitors.
The results indicate that iRECIST is better suited for capturing atypical treatment responses to immunotherapies, especially in patients experiencing pseudoprogression. iRECIST could thus contribute to a more accurate evaluation of treatment response and improved immunotherapy outcomes.