Implementing Geriatric Assessment for Dose Optimization of Cyclin-dependent Kinase (CDK) 4/6-inhibitors in Older Breast Cancer Patients. Ahus deltar i Norge (PI: Jürgen Geisler)
Inclusion Criteria:
- Patients male or female aged at least 70 years old at the time of informed consent.
- Histologically or cytologically confirmed diagnosis of HR-positive (defined as estrogen-receptor ≥ 1%), HER2-negative breast cancer according to analysis of the most recent tumor specimen by local laboratory.
- Advanced (locoregionally recurrent or metastatic) breast cancer not amenable to curative treatment.
- No prior systemic treatment for advanced disease (recurrence during neo-/adjuvant endocrine therapy is allowed). A prior period of treatment with aromatase inhibitors or fulvestrant for up to 28 days from the CDK 4/6-inhibitor initiation is allowed.
- Adjuvant treatment with CDK 4/6-inhibitors is allowed provided a disease-free interval from treatment end >12 months.
- Either measurable disease or non-measurable bone only disease, but evaluable according to RECIST criteria 1.1.
- Written informed consent prior to any study-specific procedures.
- Adequate organ function as defined in the summary of product characteristics (SmPC) for the CDK 4/6-inhibitors that is planned to be used.
- Able to swallow capsules.
- Able to understand and consent in English language or in native language for each participating country.
Exclusion Criteria:
- Patients considered from treating physician as non-suitable for treatment with CDK 4/6-inhibitors.
- Contraindications according to SmPC for the CDK 4/6-inhibitors that is planned to be used.
- Presence of visceral crisis, lymphangitis carcinomatosis, or leptomeningeal carcinomatosis.
- History of any other cancer (except of non-melanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission with no therapy for a minimum of 3 years.
- Participating in other interventional trial.
