Summary of measurement approaches for two assessments

irRC simulating RECIST1.0irRC simulating RECIST1.1
Number of target lesionsUp to 5 per organ, up to 10 in totalUp to 2 per organ, up to 5 in total
Measurable lesions≥10 mm in the longest diameter for all lesions≥10 mm in the longest diameter for all lesions except for lymph nodes
≥15 mm in short axis for nodes
Measurement of each lesionThe longest diameter for all target lesionsThe longest diameter for non-nodal lesions, short axis for lymph nodes
New lesionsThe presence of new lesion does not define progressionSame as irRC simulating RECIST1.0 except:
The measurements of the new lesion (s) are included in the sum of the measurementsA lymph node has to be ≥15 mm in short axis to be a measurable new lesion and its short axis measurement is included in the sum
Up to 5 new lesions per organ, up to 10 new lesions in total can be added to measurementsUp to 2 new lesions per organ, up to 5 new lesions in total can be added to the measurements