TABLE 1.
Total | Final dose 50 mg n = 25 (41.7%) | Final dose <50 mg n = 35 (58.3%) | p‐value | |
---|---|---|---|---|
Age (years) mean ± SD a | 64.3 ± 10.5 | 64.2 ± 10.5 | 64.3 ± 10.7 | NS b |
Sex, female/male | 39/21 | 15/10 | 24/11 | NS |
Histology, adeno/squamous | 59/1 | 24/1 | 35/0 | NS |
Stage, III/ IV | 4/56 | 2/23 | 2/33 | NS |
EGFR mutation | NS | |||
Ex 19 del/L858R | 11/7 | 4/2 | 7/5 | |
Negative | 19 | 7 | 12 | |
Not tested | 23 | 12 | 11 | |
Final dose (50/40/30) | 25/25/10 | 25/0/0 | 0/25/10 | |
Prior TKI, gefitinib/erlotinib | 43/17 | 18/7 | 25/10 | NS |
Line of afatinib treatment | NS | |||
3/4/5 | 2/27/19 | 0/8/9 | 2/19/10 | |
6/7/8/9/10 | 6/1/3/1/1 | 3/1//1/1 | 3/0/1/0/0 | |
Subsequent treatment | NS | |||
Supportive care only | 32 | 15 | 17 | |
One more regimen | 17 | 7 | 10 | |
Two or three regimens | 11 | 3 | 8 | |
Response rate (%) | 21.7 | 16.0 | 25.7 | NS |
Disease control rate (%) | 76.7 | 64.0 | 85.7 | |
PR/SD/PD/NE (number) c | 13/33/12/2 | 4/12/7/2 | 9/21/5/0 |
SD, standard deviation.
NS, not significant.
PR, partial remission; SD, stable disease; PD, progressive disease; NE, not evaluable.