Overview
This is a prospective, randomised, controlled, multicentre study to evaluate the efficacy and safety of continuous versus intermittent pyrotinib therapy in patients with human epidermal growth factor receptor (HER2)-positive advanced breast cancer.
Eligibility
Inclusion Criteria:
- Ageā„18 years old
- Pathologically confirmed advanced or locally advanced breast cancer not amenable to curative surgery
- Pathologically confirmed HER2+ at least once for either primary or metastatic lesion
- Previously treated with any number of lines for advanced disease and eligible for a pyrotinib-containing regimen at the discretion of physician
- At least one measurable lesion or bone-only disease (osteolytic or mixed) according to RECIST v1.1
- ECOG 0-1
- Adequate organ function
Exclusion Criteria:
- During pregnancy and lactation
- Difficulties with pyrotinib administration or absorption