This research is being done to collect and store biological specimens (biospecimens) from people with cancer, regardless of tumor type, who are receiving treatments known or thought to have an effect on the immune system.\n\nThe goal of this discovery and exploratory study is to:\n\n* Understand changes in the immune system associated with various cancer treatments, in order to better design new therapies or tests to predict how these treatments...

A single-center, 4-way crossover study to evaluate the effect of single therapeutic and supratherapeutic oral doses of epetraborole on the heart rate (HR) corrected QT interval (QTc) by assessing concentration-QT (C-QT) relationship using exposure-response modeling.