Table 2.
Cox regression analysis with respect to OS and PFS in patients with HRR and/or TP53 pathogenic variants.
| Univariate | Multivariate* | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Event/Total | HR (95% CI) | p-value | Event/Total | HR (95% CI) | p-value | ||||
| Entire cohort with HRR and/or TP53 pathogenic variants-excluding mucinous tumors | OS | ||||||||
| Pathogenic variants | 0.023 | 0.23 | |||||||
| HRR only | 21/39 | 0.54 (0.34-0.87) | 0.012 | 21/39 | 0.69 (0.43-1.12) | 0.14 | |||
| TP53 only | 128/196 | 0.77 (0.59-1.01) | 0.058 | 125/188 | 0.83 (0.63-1.10) | 0.19 | |||
| Both | 89/114 | Reference | – | 88/111 | Reference | – | |||
| Clonal pathogenic variants | 0.016 | 0.091 | |||||||
| HRR only | 18/38 | 0.45 (0.27-0.78) | 0.004 | 18/36 | 0.55 (0.32-0.94) | 0.030 | |||
| TP53 only | 142/210 | 0.84 (0.61-1.15) | 0.27 | 138/201 | 0.83 (0.60-1.15) | 0.25 | |||
| Both | 53/69 | Reference | – | 53/69 | Reference | – | |||
| PFS** | |||||||||
| Pathogenic variants | 0.036 | 0.19 | |||||||
| HRR only | 24/39 | 0.56 (0.36-0.88) | 0.012 | 24/39 | 0.67 (0.42-1.05) | 0.081 | |||
| TP53 only | 145/186 | 0.83 (0.64-1.08) | 0.16 | 140/179 | 0.86 (0.66-1.12) | 0.26 | |||
| both | 92/112 | Reference | – | 91/110 | Reference | – | |||
| Clonal pathogenic variants | 0.055 | 0.16 | |||||||
| HRR only | 22/37 | 0.56 (0.34-0.93) | 0.023 | 22/36 | 0.62 (0.38-1.03) | 0.063 | |||
| TP53 only | 160/201 | 0.95 (0.70-1.30) | 0.75 | 154/193 | 0.93 (0.68-1.27) | 0.63 | |||
| Both | 54/68 | Reference | – | 54/68 | Reference | – | |||
| Advanced HGSOC | OS | ||||||||
| Pathogenic variants | 0.10 | 0.31 | |||||||
| HRR only | 19/29 | 0.61 (0.37-1.02) | 0.057 | 19/29 | 0.75 (0.45-1.26) | 0.28 | |||
| TP53 only | 102/146 | 0.79 (0.58-1.06) | 0.12 | 101/141 | 0.81 (0.59-1.09) | 0.17 | |||
| Both | 74/91 | Reference | – | 73/90 | Reference | ||||
| Clonal pathogenic variants | 0.023 | 0.044 | |||||||
| HRR only | 13/26 | 0.42 (0.23-0.78) | 0.006 | 13/26 | 0.47 (0.25-0.87) | 0.016 | |||
| TP53 only | 116/161 | 0.84 (0.59-1.19) | 0.32 | 114/155 | 0.75 (0.53-1.07) | 0.11 | |||
| Both | 44/55 | Reference | – | 44/55 | Reference | – | |||
| PFS** | |||||||||
| Pathogenic variants | 0.23 | – | |||||||
| HRR only | 22/29 | 0.69 (0.43-1.10) | 0.12 | ||||||
| TP53 only | 114/142 | 0.83 (0.62-1.11) | 0.21 | ||||||
| Both | 76/90 | Reference | – | ||||||
| Clonal pathogenic variants | 0.088 | 0.17 | |||||||
| HRR only | 17/26 | 0.55 (0.31-0.96) | 0.037 | 17/26 | 0.58 (0.33-1.02) | 0.058 | |||
| TP53 only | 129/157 | 0.94 (0.67-1.33) | 0.74 | 125/151 | 0.85 (0.60-1.21) | 0.37 | |||
| Both | 44/54 | Reference | – | 44/54 | Reference | – | |||
HR, hazard ratio; CI, confidence interval; HRR, homologous recombination repair; HGSOC, high-grade serous ovarian cancer; PFS, progression-free survival; OS, overall survival.
*Adjusting for age and performance status.
**Assessed in patients treated with 1st line chemotherapy.
Statistically significant p-values are shown in bold.