PROVIDENCE - Prospective Non-interventional Study (NIS) to Examine Patient-reported Outcomes and Real-world Clinical Data in Patients With HER2-positive, HER2-low or HER2-ultralow Unresectable or Metastatic Breast Cancer Treated With Trastuzumab Deruxtecan
Trial Parameters
Brief Summary
This is a prospective non-interventional, multicenter study observing patient reported outcomes as well as real-world efficacy and safety of trastuzumab deruxtecan (T-DXd) in patients with documented Human epidermal growth factor receptor 2 (HER2)-positive, HER2-low or HER2-ultralow unresectable or metastatic breast cancer (BC) receiving T-DXd in line with the applicable summary of product characteristics (SmPC) within routine clinical practice in Germany. In addition, patients will be informed about use of digital healthcare application (DiGA).
Eligibility Criteria
Inclusion Criteria: 1. Adults ≥ 18 years old 2. Patients (irrespective of sex and gender) with pathologically documented breast cancer that: * is unresectable or metastatic * has confirmed HER2+, HER2-low or HER2-ultralow tumor status by local pathology * was previously treated with one or more anti-HER2 directed therapy if the tumor is HER2+ OR * was previously treated with at least one endocrine therapy in the metastatic setting and is not considered suitable for endocrine therapy as the next line of treatment if the tumor is HR+, HER2-low or HER2-ultralow OR * was previously treated with prior chemotherapy in the metastatic setting or developed disease recurrence during or within 6 months of completing adjuvant chemotherapy if the tumor is HER2-low. 3. Has documented radiologic progression (during or after most recent treatment) 4. Patient is eligible for T-DXd treatment in line with the specifications mentioned in the ENHERTU® SmPC and is scheduled for T-DXd treatment \* 5. Patient