Morphologic Tumor Response Based on Primary Tumor Site
| Prior177Lu-PRRT (n = 57) | 177Lu-PRRT–naïve (n = 34) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Site of primary | CR | PR | SD | PD | Not assessed | Site of primary | CR | PR | SD | PD | Not assessed |
| Foregut (n = 32) | 1 (3%) | 13 (40.6%) | 10 (31%) | 6 (18.7%) | 2 (6%) | Foregut (n = 15) | 0 | 7 (46.6%) | 2 (13.3%) | 3 (20%) | 3 (20%) |
| Midgut (n = 11) | 0 | 6 (54.5%) | 3 (27.3%) | 1 (9%) | 1 (9%) | Midgut (n = 9) | 0 | 5 (55.6%) | 2 (22.2%) | 0 | 2 (22.2%) |
| Hindgut (n = 7) | 1 (14.3%) | 2 (28.6%) | 2 (28.6%) | 2 (28.6%) | 0 | Hindgut (n = 1) | 0 | 0 | 1 (100%) | 0 | 0 |
| Unknown (n = 7) | 0 | 2 (28.6%) | 1 (14.3%) | 3 (42.8%) | 1 (14.3%) | Unknown (n = 9) | 0 | 3 (33.3%) | 2 (22.2%) | 1 (%) | 3 (33.3%) |
| Total (n = 57) | 2 (3.5%) | 23 (40.3%) | 16 (28%) | 12 (21%) | 4 | Total (n = 34) | 0 | 15 (44%) | 7 (20.6%) | 4 (11.8%) | 8 (23.6%) |
CR = complete response; PR = partial response; SD = stable disease.
Data are number and percentage.