Degenhardt, Tom; Fasching, Peter A.; Lüftner, Diana; Müller, Volkmar; Thomssen, Christoph; Schem, Christian; Witzel, Isabell; Decker, Thomas; Tesch, Hans; Kümmel, Sherko; Uleer, Christoph; Wuerstlein, Rachel; Hoffmann, Oliver; Warm, Mathias; Marschner, Norbert; Schinköthe, Timo; Kates, Ronald E.; Schumacher, Johannes; Otremba, Burkhard; Zaiss, Matthias; Harbeck, Nadia; Schmidt, Marcus (2023): PRECYCLE: multicenter, randomized phase IV intergroup trial to evaluate the impact of eHealth-based patient-reported outcome (PRO) assessment on quality of life in patients with hormone receptor positive, HER2 negative locally advanced or metastatic breast cancer treated with palbociclib and an aromatase inhibitor or palbociclib and fulvestrant. Trials, 24 (1). ISSN 1745-6215