Table 2. Radiologic and Pathologic Patient Outcomes in Neoadjuvant Checkpoint Inhibitor Studies of High-Risk Resectable Melanoma.
Study | Patients, No. | Follow-up, median (range), mo | Planned surgical resection, No. | Radiologic response, No. | Pathologic response, No. | Discordance between radiologic and pathologic response | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
CR | PR | SD | PD | CR | nCR | PR | >PR | |||||
Amaria et al,13 2018 | ||||||||||||
Nivolumab | 12 | 15.0 (5.8-22.6) | 10 | 0 | 3 | 5 | 2 | 3 | NR | NR | NR | Yes |
Ipilimumab + nivolumab | 11 | 15.6 (5.8-24.4) | 11 | 1 | 7 | 2 | 1 | 5 | NR | NR | NR | Yes |
Blank et al,10 2018 | ||||||||||||
NAT arma | 10 | 21.6 (15.9- NR) | 10 | 0 | 4 | 3 | 1 | 3 | 3 | 1 | 2 | Yes |
Adjuvant arm | 10 | NR | ||||||||||
Huang et al,14 2019 | ||||||||||||
NAT trial | 29 | 25.0 | 29 | 0 | 3b | 3b | NR | 5 | 3 | 15 | NR | No |
Rozeman et al,15 2019 | ||||||||||||
Group 1 | 30 | 24.6 (21.6-27.6) | 30 | 2 | 17 | 9 | 2 | 14 | 7 | 3 | 6 | Yes |
Group 2 | 30 | 29 | 3 | 14 | 10 | 2 | 17 | 2 | 4 | 7 | Yes | |
Group 3 | 26 | 24 | 1 | 8 | 12 | 5 | 6 | 6 | 5 | 8 | Yes | |
Amaria et al,16 2022 | ||||||||||||
Single NAT arm | 30 | 24.4 (7.1-34.6) | 29 | 0 | 18 | 9 | 3 | 17 | 2 | 2 | 8 | Yes |
Reijers et al,17 2022 | ||||||||||||
Single NAT arm | 99 | 28.1 (25.0-33.8) | 90 | 14 | 31 | 38 | 13 | 48 | 12 | 11 | 19 | Yes |
Patel et al,18 2023 | ||||||||||||
NAT-adjuvant arm | 144c | 14.7 | 127 | 9 | 58 | 54 | 23 | 28d | NR | NR | NR | Yes |
Adjuvant only arm | 151 | 151 | NR | NR | NR | NR | NR | NR | NR | NR | NR |
Abbreviations: CR, complete response; nCR, near-complete response; NAT, neoadjuvant therapy; NR, not reported; PD, progressive disease; PR, partial response; SD, stable disease.
In the neoadjuvant arm, radiologic data were available from 8 patients, and pathologic data from 9 patients.
Pathologic response was assessed in 27 patients, and radiologic response was assessed in 6 patients.
Three patients either withdrew consent or defected. All statistics are done with 141 as the baseline number.
Among 132 patients evaluated.