A new class of molecules capable of killing the cancer cells that are refractory to standard treatments and responsible for recurrence has just been developed by scientists at Institut Curie, the CNRS, and Inserm. This crucial advance in the fight against metastatic cancer is based on identifying the cellular site for ferroptosis initiation, a natural process, catalysed by iron, that sparks the oxidative degradation of cell membranes. These promising preclinical results will be published in the journal Nature on 7 May 2025.