A Real-world Clinical Study of Pyrotinib Maleate Tablets in the Treatment of Breast Cancer Patients With Positive Her-2

A Real-world Clinical Study of Pyrotinib Maleate Tablets in the Treatment of Breast Cancer Patients With Positive Her-2

To evaluate the efficacy and safety of Pyrotinib Maleate Tablets in the treatment of advanced breast cancer patients with positive her-2.

This study intends to carry out multicenter, observational cohort clinical research, using maleic acid pyrrole for his piece of HER-2 positive treatment of advanced breast cancer treatment, observation and verification maleic acid pyrrole for his piece for a line or a single drug resistance by bead in the real diagnosis and treatment in patients with advanced breast cancer environment and the efficacy and safety of new treatments. Biomarkers of breast cancer prognosis are of great significance in predicting the degree of malignancy, metastasis and recurrence of breast cancer, as well as guiding clinical treatment programs.This study will explore the prognostic factors and curative effect of breast cancer patients from multiple aspects, explore the dominant population of breast cancer patients with pyrrolidone maleate, and provide the theoretical basis for individualized treatment for clinical treatment practice.

Inclusion Criteria:

1. Male or female patients .
2. Confirmed by pathological examination of breast cancer patients with positive her-2 expression
3. The researchers determined that the standard neoadjuvant regimen was ineffective in the treatment of patients with locally advanced her-2 positive breast cancer or that the standard neoadjuvant regimen was not applicable.
4. Patients should be voluntary to the trial and provide with signed informed consent
5. The researchers believe patients can benefit from the study.

Exclusion Criteria:

1. Patients with a known history of allergic reactions and/or hypersensitivity attributed to Pyrotinib maleate tablets or its accessories
2. Pregnant or lactating women
3. Patients with Pyrotinib maleate tablets contraindications
4. Patients of doctors considered unsuitable for the trial