18. Additional criteria only for the Expanded Cohort and both Combination cohorts: A ≥28 day treatment-free interval between last chemotherapeutic treatment and first treatment with Promitil, with the exception of Capecitabine and biological therapies, where 14-day treatment-free intervals suffice. this is also relevant for patients in the Combination Cohort that are currently taking Capecitabine prior to enter the study).