EPCAM and cancer: This pilot ex-vivo study explored the feasibility, safety aspects and efficacy of Catuvab assessing the number of residual tumor cells, concentration of the pro-inflammatory cytokines IL-6, IL-8 and Catumaxomab antibody amount before, during and at the end of the Catuvab -procedure in the final product, the erythrocyte concentrate (EC) of 16 cancer patients with high probability to be EpCAM positive according to indication.