BI-905677

This study is open to adults with different types of advanced cancer (solid tumours). This study is open to people in whom previous treatments were not successful. The purpose of this study is to find out the highest dose of BI 905677 the participants can tolerate. BI 905677 is a type of an antibody that is being developed to treat cancer.
One dose of BI 905677 is given to the participants every 2 or 3 weeks as infusion into a vein. In this study, BI 905677 is given to humans for the first time. The participants visit the study site at least once a week so that the doctors can check their general health. The participants are in the study for as long as they benefit from and can tolerate treatment.