This research study is looking at a new DARPin based medication, called MP0250. There is evidence from preclinical studies that MP0250 may be effective in the treatment of cancer. This is the first study of MP0250 in humans and its main purpose is to test its safety and tolerability in patients with cancer. This study will also examine how the drug is changed by and removed from the body and look for indicators that the drug may be effective against cancer. This study will test several different dose levels of the study drug to determine the safety and tolerability profile of the drug.