“…Generally, data from real-world experiences have confirmed palbociclib's effectiveness and tolerability in various unselected populations [10]. Frequencies of toxicity seem comparable, however, there seems to be a difference between the clinical trials and real-world setting in how episodes of neutropenia are managed [2,8,22]. For instance, a study in the Netherlands showed that more cycle delays, less dose reductions, and less dose interruptions occurred in clinical practice compared with PALOMA-3 [2].…”