Part C: advanced or unresectable STs (Spain only), Part B : r/r diffuse large B cell lymphoma (DLBCL) (Cohort 1), advanced research hub

This is clinical study to test, for the first time in people, the safety (any good or bad effects), how long the drug can stay in the body and if it can control the disease of people diagnosed with advanced cancer that has not responded to treatment, has returned after it has been treated, or cannot be treated by surgery, drugs, or any other known treatments.

This early-stage study is testing a new drug for advanced cancers that haven't responded to other treatments or have come back. The main goals are to check if it's safe, how long it stays in the body, and if it can help control the disease.