MPL and Thrombocytopenia: Eltrombopag and other thrombopoietin-receptor agonists are currently under investigation as potential supportive care agents to help reduce the duration and severity of thrombocytopenia in patients receiving myelosuppressive chemotherapy, in a similar fashion as to how granulocyte-colony stimulating factor (G-CSF) is used to help reduce the time to neutrophil recovery [10, 11, 51].