“…Metal-based drugs have been used for the treatment of numerous diseases since the last centuryand represent important tools in contemporary medicine. [1] Gold salts were tested against tuberculosis andw ere employed as antirheumatics from the beginning of 20 th century, [2] but it is only with the discovery of cisplatin, [3] as one of the most powerful chemotherapeutic agents against ovarian and testicular cancer,t hat the interest for new metal-based therapeutic drugs starts. In particular,o ther platinum(II)-, ruthenium(II/III)-and gold(I/III)-based drugs, such as oxaliplatin,N AMI-A, KP1019, RAPTA-T or auranofin ( Figure 1), have been pioneer compounds for their use in cancer therapy.…”