Ovarian cancer is one of the deadliest cancers in women. The treatment consists of a combination of chemotherapy with many side effects and major surgery. Through the ‘STA-OP’ project, we aim to develop a targeted, more tailor-made therapy that will preserve the longevity and quality of life for these women. In this project we will use a new technique (OncoSIGNal) to look at which cancer growth stimulating activities are located in the cell. Once it is clear which activity(s) are too high active, a specific drug can be given to inhibit this activity and thus also inhibit cancer growth. If this project succeeds and it can be demonstrated that through this technology a good drug choice can be made to inhibit a cancer in growth, then this principle is also applicable to other cancer types and possibly earlier in treatment. This allows people to be treated faster and more specifically.