389TiP - PRECYCLE: Impact of CANKADO-based eHealth-support on quality of life in metastatic breast cancer patients treated with palbociclib and endocrine therapy

Efficacy and quality of life (QoL) are key factors when selecting therapies for metastatic breast cancer (MBC) patients. The addition of targeted oral agents such as CDK4/6 inhibitors to endocrine therapy is the new standard for HR+ HER2- MBC and substantially prolongs progression-free survival. However more complex oral medication in oncology might require substantial improvement of patient management. Despite several advantages of oral treatments, patients become increasingly self-responsible and physician-patient contact is reduced. Adherence, maintaining patients’ satisfaction and early detection management of side effects become important challenges and new ways of continuous support are needed. An eHealth-based platform could help to support therapy management and physician-patient interaction. PRECYCLE is a multicenter, randomized, phase IV trial in HR+ HER2- MBC. All patients (n=960) receive the palbociclib either in first (62.5%) or later line (37.5%) together with endocrine therapy (AI, fulvestrant). Primary study aim is the time to deterioration (TTD) of QoL in patients supported by two eHealth systems with substantially different functionality. To date (02/11/2019) in 64 centers 165 patients have been randomized to the different study arms: - CANKADO inform with only a personal login, documentation of daily drug intake and passive text information, but no further functions. vs. - CANKADO active with the fully functional CANKADO-based eHealth treatment support system (drug diary, QoL, AEs, automated recommendations, etc.). To evaluate QoL, the FACT-B questionnaire is completed at every visit. Primary objective is to test the hypothesis of superiority for TTD with regard to QoL (FACT-G scale) in patients supported by an eHealth therapy management system (CANKADO active) versus in those merely receiving eHealth-based information (CANKADO inform). As little is known about relationships between behavioral patterns (e.g. adherence), genetic background and drug efficacy the trial also includes a large translational program that aims at discovery and validation of biomarkers concerning efficacy, toxicity, adherence and QoL. NCT03220178 EudraCT: 2016-004191-22. The authors. Pfizer. T. Degenhardt: Advisory / Consultancy: Pfizer; Advisory / Consultancy: Roche; Travel / Accommodation / Expenses: Tesaro; Advisory / Consultancy: GSM; Travel / Accommodation / Expenses: Cellgene; Travel / Accommodation / Expenses: Daichii Synkyo. P.A. Fasching: Honoraria (self