Next-generation, oral selective oestrogen receptor degraders (SERDs) have been shown to improve outcomes in patients with advanced-stage oestrogen receptor (ER)-positive, HER2-negative breast cancer, particularly those with acquired ESR1 mutations. Now, the proteolysis-targeting chimera (PROTAC) SERD vepdegestrant, which induces ER degradation directly rather than indirectly, has also demonstrated efficacy in this setting, raising questions over the optimal choice and sequencing of treatments.
- Patrick Neven
- Sileny N. Han