This is a retrospective, observational study looking at real-world prescription data in Australia. The study focuses on adult men with metastatic hormone-sensitive prostate cancer (mHSPC), a type of prostate cancer that has spread but still responds to hormone therapy. The main goal is to understand the treatment patterns, characteristics, and outcomes for patients who are receiving a class of drugs called Androgen Receptor Pathway Inhibitors (ARPIs), such as darolutamide, enzalutamide, apalutamide, or abiraterone. These drugs are often used in combination with standard Androgen Deprivation Therapy (ADT). The research will use two large, de-identified Australian prescription databases: the Pharmaceutical Benefits Scheme (PBS) and the NostraData retail pharmacy dataset. By analyzing this information, the study aims to describe how these treatments are being used over time, including what proportion of patients receive doublet therapy (ARPI + ADT) or triplet therapy (ARPI + ADT + docetaxel chemotherapy). It will also describe the characteristics of the patients receiving these therapies, such as their age and location. Secondary goals include understanding how well patients adhere to their prescribed ARPI treatment and tracking any changes in medication dosage over time. Since the study uses existing, anonymized data, there is no direct contact with patients and individual patient consent is not required. The findings will provide valuable real-world insights into the use of ARPIs in Australia, which can help inform clinical practice and improve care for men with mHSPC.
Study Type
OBSERVATIONAL
Enrollment
1,000
Number and proportion of patients taking each ARPI as a percentage of total study population.
Time frame: Retrospective analysis from December 2022 to June 2025
Demographic characteristics of mHSPC patients
Time frame: Retrospective analysis from December 2022 to June 2025
Proportion of days covered (PDC) to understand adherence
Evaluation of treatment adherence from treatment initiation using a proportion of days covered (PDC) analysis. PDC is calculated as the number of days with medication available divided by the total number of days in the observations period, starting from ARPI (Andorgen receptor pathway inhibitor) initiation
Time frame: Retrospective analysis from December 2022 to June 2025
Starting dose and change in dose over time
Time frame: Retrospective analysis from December 2022 to June 2025
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.