Table 1 Characteristics of patients with metastatic breast cancer treated with trastuzumab

From: Incidence of cerebral metastases in patients treated with trastuzumab for metastatic breast cancer

Number in study group

93

Median age (range)

48 (23–76)

HER2 immunohistochemistry

 2+

6

 3+

87

Hormone receptor status

 ER+

41 (44%)

 ER

52 (56%)

 ER

47 (51%)

 ER

5 (5%)

Trastuzumab given

 Alone

30 (32%)

 With chemotherapy

53 (57%)

 With hormonal therapy

8 (9%)

 With chemotherapy and hormonal therapy

2 (2%)

Line of therapy for trastuzumab

 First systemic therapy

44 (47%)

 Second systemic therapy

31 (33%)

 Third line systemic therapy

18 (19%)

Disease distribution at the start of trastuzumab therapy

 Visceral

51 (55%)

 Nonvisceral

42 (45%)

Response to trastuzumab

 Stable disease or better

53 (57%)

 PD

33 (35%)

 Not assessed/not assessable

7 (8%)