FIGURE 1.

Treatment exposure to pembrolizumab and summary of best overall response assessed per RECIST by investigator review (N=26). Patients with radiographic progression who were clinically stable or clinically improved, with no further evidence of RECIST progression on subsequent scans could continue treatment after consultation with the sponsor and at the investigator’s discretion. PD indicates progressive disease; PR, partial response; RECIST, Response Evaluation Criteria in Solid Tumors version 1.1.