Statistical analysis
In the phase II REGOLD study, the median PFS was 2.2 months. With a PFS threshold of 2.2 months and an expected PFS of 4.0 months, simulation results indicated a sample size of 26 with Patient baseline characteristics were described. PFS and OS were estimated using Kaplan–Meier survival curves. The correlation between geriatric assessment and survival outcomes was evaluated by the Cox proportion hazard model. Statistical analyses were conducted using SPSS software. All statistical tests were two‐sided, and a significance level of 