LYNPARZA Breast Cancer in the Adjuvant Setting Japan Post-Marketing Surveillance (PMS)

LYNPARZA Tablets 100mg, 150mg General Drug Use-results Study in Patients With BRCA Mutated HER2 Negative High Recurrent Risk Breast Cancer in the Adjuvant Setting

To evaluate the frequency of bone marrow suppression Adverse Drug Reactions (ADRs) in patients with BRCA mutated HER2 negative high recurrent risk breast cancer treated with LYNPARZA for adjuvant treatment in the actual post-marketing use.

To evaluate the frequency of bone marrow suppression Adverse Drug Reactions (ADRs) in patients with BRCA mutated HER2 negative high recurrent risk breast cancer treated with LYNPARZA for adjuvant treatment in the actual post-marketing use.

This investigation will be conducted for application for re-examination specified in Article 14-4 of the Pharmaceutical Affairs Law.

Inclusion Criteria:

• The patients who started treatment with LYNPARZA for the first time for the approved indication "Adjuvant treatment for patients with BRCA-mutated HER2 negative high recurrent risk breast cancer"

Exclusion Criteria:

• Patients who have no treatment history with LYNPARZA