[TNBC, stage IV: a patient's journey, from standard options to the new era of ADC.].

Triple-negative breast cancer (TNBC) continues to be the most aggressive molecular subtype of breast cancer and the optimal therapeutic management is still a challenge. Due to the lack of "traditional" molecular targets, for decades, systemic treatment has been characterized by the use of classic cytotoxic drugs. In recent years, it has been proved that TNBC is not represented by a single pathology lack of specific features, but of different entities with distinct genetic, histological and clinical alterations.