Personalised cancer medicine offers opportunities but has one problem: many anti-tumour drugs only work on certain pathogenic processes in cancer cells, which can vary greatly depending on the patient. So which active substance (mix) is most effective in a particular tumour? The DrugTargetInspector might be able to help. A computer programme being developed by researchers at Saar University, it uses the genetic information from the patient’s tumour cells and international pharmacological, biological and medical databases to determine the salient characteristics of the tumour and thus help doctors choose the right drug. This facilitates personalised treatment – and provides hope in the fight against cancer.