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Real-world Treatment Patterns of Endocrine Based Therapy Among Patients With Hormone Receptor-positive/Human Epidermal Growth Factor Receptor-2-negative (HR+/HER2-) Advanced Breast Cancer: An Analysis of Administrative Claims Data in Japan

NCT05153187

CompletedN/A

Sponsor: Pfizer

Conditions: Breast Cancer

Countries: Japan

This is a retrospective observational study focusing on patients diagnosed with advanced breast cancer(ABC) in Japan using de-identified claim data from Medical Data Vision (MDV) database. The primary objective of this study is to describe patient demographics, treatment patterns and treatment duration of palbociclib, and subsequent treatment patterns and treatment duration after palbociclib-based therapy among ABC patients in Japan The secondary objective of the study is to describe patient demographics, treatment patterns of ABC patients and treatment duration of endocrine therapy, and subsequent treatment patterns and treatment duration after endocrine therapy among ABC patients in Japan.

Eligibility overview

Sex: ALL

Healthy volunteers: No

Study type: OBSERVATIONAL

Eligibility criteria

Inclusion Criteria:

* Diagnosis of breast cancer based on International statistical classification of diseases and related health problems 10th revision (International Statistical Classification of Diseases and Related Health Problems \[ICD-10\]) (C50.xx)
* Received at least one prescription of endocrine therapy drugs
* Diagnosis of secondary malignant neoplasm based on ICD-10 (C77.x, C78.x, C79.x )

Exclusion Criteria:

-Received a prescription of anti-HER2 therapy (Trastuzumab, Trastuzumab emtansine, Pertuzumab, and Lapatinib tosilate hydrate)

Locations (1)

Tokyo, Japan