Continuous or Intermittent Pyrotinib for HER2-positive Advanced Breast Cancer: a Prospective, Randomized, Controlled, Multicentre Clinical Trial
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.
• Age≥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