Table 1 Patient characteristics

Age (years)

80.5 (75–89)^a

Sex

 Male/female

6/12

Performance status

 0/1/2/3

1/9/5/3

Body weight (kg)

47.7 (38.3–65.7)^a

Serum albumin level (g/dL)

3.6 (1.6–4.5)^a

Total bilirubin level (mg/dL)

0.6 (0.4–1.0)^a

Serum creatinine level (mg/dL)

0.73 (0.38–1.14)^a

eGFR (mL/min)

60.2 (48.5–115)^a

EGFR mutation

 Exon 19/exon 21

8/10