Apolda

This non-interventional study aims to provide information on real-world effectiveness, safety and tolerability, management of adverse events, QoL and patient compliance of patients with HR+/HER2- early breast cancer at high risk of recurrence treated with ribociclib in combination with an aromatase inhibitor (AI) ± luteinizing hormone-releasing hormone (LHRH) with curative intent according to the current effective local summary of product characteristics. In order to put the results of patients treated with ribociclib into perspective, socio-economic data, data on QoL and patient compliance will also be collected from patients treated with abemaciclib + endocrine therapy (ET) ± LHRH as described in the current effective local summary of product characteristics. To understand reasons for treatment decision, and to analyze the clinical adoption of ribociclib + AI ± LHRH after EU approval over time, baseline data will be collected from cohorts of ribociclib + AI ± LHRH, abemaciclib + ET ± LHRH, and additionally from patients treated with ET monotherapy ± LHRH and analyzed cross-sectionally. The study is planned to be rolled out into a broad set of German and Austrian breast centers and gynecological practices to describe clinical routine in a representative subset of the local healthcare eco-system. It will gather insights into the potential benefits and risks associated with ribociclib + AI ± LHRH in the adjuvant treatment of HR+/HER2- eBC patients at high risk of recurrence. This knowledge will inform about clinical decision-making and contribute to improved patient outcomes in routine practice.

Eligible participants will be those patients with documented HER2-positive, HER2-low or HER2-ultralow unresectable or metastatic BC receiving T-DXd treatment in line with the applicable summary of product characteristics (SmPC) within routine clinical practice. All diagnostic and treatment procedures including visit frequency are at the discretion of the treating physician and not defined by the protocol. T-DXd treatment is considered as a selection criteria. Patients will be informed about use of digital healthcare application (DiGA). Approximately 800 eligible participants will be enrolled which includes 400 patients in the HER2-positive cohort and 400 patients in the HER2-low/ HER2-ultralow cohort.