Research Article

Retrospective Study on the Efficacy and Safety of Pyrotinib-Based Therapy for HER2-Positive Nonbreast Advanced Solid Tumors

Table. 1

Demographic and clinicopathologic characteristics of patients.

Characteristics

Median age of patients, years (range)56 (35-77)
  ≤60, (%)16 (64%)
 >60, (%)9 (36%)
Gender, (%)
 Male11 (44%)
 Female14 (56%)
ECOG performance status, (%)
 0-19 (36%)
  ≥216 (64%)
Tumor type
 Lung cancer16 (64%)
 Gastric cancer6 (24%)
 Colorectal cancer2 (8%)
 Cholangiocarcinoma1 (4%)
Line of pyrotinib treatment, (%)
 12 (8%)
 29 (36%)
 33 (12%)
 45 (20%)
  ≥56 (24%)
 Median (range)3 (1-9)
Pyrotinib treatment regimen, (%)
 Pyrotinib18 (72%)
 Pyrotinib + trastuzumab2 (8%)
 Pyrotinib + L-OHP1 (4%)
 Pyrotinib + fruquintinib1 (4%)
 Pyrotinib+ anlotinib + pembrolizumab1 (4%)
 Pyrotinib+ nab-paclitaxel + trastuzumab1 (4%)
 Pyrotinib + camrelizumab1 (4%)
HER-2 status type, (%)
 IHC3+7 (28%)
 FISH+2 (8%)
 Amplification1 (4%)
 exon20 insertion mutations12 (48%)
 exon20 p.Tyr772-Ala775dup2 (8%)
 p.D769Y1 (4%)
Starting dosage of pyrotinib, (%)
 400 mg17(68%)
 320 mg6 (24%)
 240 mg2 (8%)