Demographic and baseline characteristics by treatment arm
| Single-agent arm | Combination arm | |
| Demographic variables | N=39 | N=53 |
| Age (years), median (range) | 61.0 (31–79) | 60.0 (34–84) |
| Female, n (%) | 22 (56.4) | 23 (43.4) |
| Race, n (%) | ||
| Caucasian | 24 (61.5) | 36 (67.9) |
| Asian | 10 (25.6) | 10 (18.9) |
| Other | 2 (5.1) | 1 (1.9) |
| Unknown | 2 (5.1) | 3 (5.7) |
| Black or African–American | 1 (2.6) | 3 (5.7) |
| ECOG performance status, n (%) | ||
| 0 | 21 (53.8) | 19 (35.8) |
| 1 | 17 (43.6) | 34 (64.2) |
| 2 | 1 (2.6) | 0 (0.0) |
| Diagnosis, n (%) | ||
| Colorectal cancer | 5 (12.8) | 10 (18.9) |
| Cutaneous melanoma | 1 (2.6) | 6 (11.3) |
| Ovarian cancer | 4 (10.3) | 4 (10.3) |
| Breast cancer | 3 (7.7) | 2 (3.8) |
| Cervical cancer | 3 (7.7) | 2 (3.8) |
| Mesothelioma | 3 (7.7) | 0 (0.0) |
| Pancreatic cancer | 3 (7.7) | 2 (3.8) |
| Others | 16 (41.0) | 31 (58.4) |
| Number of prior antineoplastic regimens, n (%) | ||
| 1 | 7 (17.9) | 9 (17.0) |
| 2 | 11 (28.2) | 13 (24.5) |
| 3 | 5 (12.8) | 9 (17.0) |
| 4 | 5 (12.8) | 8 (15.1) |
| ≥5 | 11 (28.2) | 18 (33.9) |
ECOG, Eastern Cooperative Oncology Group.