In the phase I feasibility study three drug sensitivity biomarkers that were previously identified by cancer cell line profiling were validated with patient material and clinical data. Proliferation assays were developed with blood samples from leukemia patients and used to determine whether two drug combinations, that previously had been shown to be synergistic in experiments with cancer cell lines, could be confirmed in patient samples. One of the two combinations was confirmed. In a separate line of research, a new drug sensitivity biomarker was identified for an internal drug discovery project of NTRC, resulting in a patent application that has been filed in April 2015. Finally, potential collaborators for an extension of the project in a phase 2 SME Instrument project were identified and the business plan was updated based on input from our stakeholders (i.e. academic research partners, medical doctors, pharmaceutical industry partners), a patent attorney, and other contacts in the network.