Patients with metastatic renal cell carcinoma of non-clear cell histology undergoing cytoreductive nephrectomy prior to systemic therapy have better outcomes compared with those treated with systemic therapy alone. |
For patients who are not candidates for cytoreductive nephrectomy, immunotherapy plus tyrosine kinase inhibitor combination or, eventually, tyrosine kinase inhibitor monotherapy might be preferred. |
1 Introduction
2 Methods
2.1 Study Design and Population
2.2 Statistical Analysis
3 Results
3.1 Study Population
Characteristic, n (%) | Patients with nccRCC metastatic at diagnosis | ||
---|---|---|---|
Upfront cytoreductive nephrectomy n = 111 | No cytoreductive nephrectomy n = 110 | p-Value | |
Gender | |||
Male | 81 (73) | 87 (79) | 0.322 |
Female | 30 (27) | 23 (21) | |
Age, years (median) | 64 | 63 | – |
Range | 25–89 | 34–88 | |
Number of metastatic sites ≤1 | 28 (25) | 26 (24) | 0.870 |
Sites of metastases | |||
Lung | 67 (60) | 61 (55) | 0.476 |
Bone | 33 (30) | 44 (40) | 0.139 |
Liver | 35 (32) | 22 (20) | 0.054 |
Brain | 6 (5) | 12 (11) | 0.119 |
IMDC risk group | |||
Intermediate-risk | 84 (76) | 61 (55) | 0.002 |
Poor-risk | 27 (24) | 49 (45) |
Characteristic, n (%) | TKI n = 112 | IO+TKI n = 72 | IO+IO n = 37 | p-Value |
---|---|---|---|---|
Gender | ||||
Male | 88 (79) | 54 (75) | 26 (70) | 0.341 |
Female | 24 (21) | 18 (25) | 11 (30) | |
Age, years (median) | 64 | 63 | 64 | – |
Range | 25–88 | 34–89 | 36–87 | |
Number of metastatic sites ≤1 | 30 (27) | 14 (19) | 10 (27) | 0.314 |
Sites of metastases | ||||
Lung | 64 (57) | 44 (61) | 20 (54) | 0.604 |
Bone | 37 (33) | 28 (39) | 12 (32) | 0.531 |
Liver | 25 (22) | 22 (31) | 10 (27) | 0.354 |
Brain | 10 (9) | 6 (8) | 2 (5) | 0.529 |
IMDC risk group | ||||
Intermediate risk | 80 (71) | 43 (60) | 22 (59) | 0.148 |
Poor risk | 32 (29) | 29 (40) | 15 (41) | |
Type of first-line therapy | – | |||
Sunitinib | 74 (66) | 0 (0) | 0 (0) | |
Pazopanib | 25 (22) | 0 (0) | 0 (0) | |
Cabozantinib | 13 (12) | 0 (0) | 0 (0) | |
Pembrolizumab + axitinib | 0 (0) | 51 (71) | 0 (0) | |
Nivolumab + cabozantinib | 0 (0) | 13 (18) | 0 (0) | |
Pembrolizumab + lenvatinib | 0 (0) | 8 (11) | 0 (0) | |
Nivolumab + ipilimumab | 0 (0) | 0 (0) | 37 (100) | |
Second-line therapies | 56 (50) | 29 (40) | 14 (38) | 0.185 |
Type of second-line therapy | – | |||
Cabozantinib | 22 (20) | 27 (38) | 11 (30) | |
Nivolumab | 23 (21) | 0 (0) | 0 (0) | |
Axitinib | 5 (4) | 0 (0) | 0 (0) | |
Sunitinib | 0 (0) | 0 (0) | 2 (5) | |
Sorafenib | 3 (3) | 0 (0) | 0 (0) | |
Everolimus | 3 (3) | 0 (0) | 0 (0) | |
Clinical trials | 0 (0) | 2 (3) | 0 (0) |
3.2 OS and PFS
3.3 Comparison of OS and PFS Between Immune-Based Combinations and TKI Monotherapy According to Upfront CN
3.4 Univariate and Multivariate Cox Analyses
Overall survival | Univariate Cox regression | Multivariate Cox regression | ||
---|---|---|---|---|
HR (95% CI) | p-Value | HR (95% CI) | p-Value | |
Gender (female vs male) | 0.87 (0.54−1.41) | 0.570 | ||
Age (≥65 years vs <65 years) | 1.46 (0.93−2.14) | 0.094 | ||
IMDC prognostic group (poor vs intermediate) | 2.10 (1.39−3.18) | <0.001 | 1.83 (1.20−2.79) | 0.005 |
Upfront cytoreductive nephrectomy (yes vs no) | 0.48 (0.31−0.72) | <0.001 | 0.47 (0.31−0.72) | < 0.001 |
Number of metastatic sites (1 vs >1) | 0.52 (0.31−0.87) | 0.012 | 0.54 (0.32−0.91) | 0.021 |
Lung metastases (yes vs no) | 0.87 (0.58−1.30) | 0.485 | ||
Bone metastases (yes vs no) | 1.24 (0.82−1.87) | 0.319 | ||
Liver metastases (yes vs no) | 1.27 (0.81−1.99) | 0.299 | ||
First-line (TKI vs IO combinations) | 0.89 (0.59−1.34) | 0.579 |
Progression-free survival | Univariate Cox regression | Multivariate Cox regression | ||
---|---|---|---|---|
HR (95%CI) | p-value | HR (95%CI) | p-value | |
Gender (female vs male) | 0.91 (0.63−1.32) | 0.617 | ||
Age (≥65 years vs <65 years) | 0.97 (0.64−1.39) | 0.751 | ||
IMDC prognostic group (poor vs intermediate) | 1.47 (1.04−2.05) | 0.026 | 1.34 (0.95−1.87) | 0.092 |
Upfront cytoreductive nephrectomy (yes vs no) | 0.80 (0.58−1.10) | 0.171 | ||
Number of metastatic sites (1 vs >1) | 0.78 (0.54−1.14) | 0.201 | ||
Lung metastases (yes vs no) | 0.92 (0.67−1.26) | 0.604 | ||
Bone metastases (yes vs no) | 1.44 (1.04−1.99) | 0.028 | 1.42 (1.03−1.97) | 0.032 |
Liver metastases (yes vs no) | 1.10 (0.77−1.58) | 0.577 | ||
First-line (TKI vs IO combinations) | 1.63 (1.18−2.25) | 0.003 | 1.70 (1.23−2.36) | 0.001 |