At present, the US Food and Drug Administration has approved recombinant interleukin (IL)-11 (oprelvekin) for thrombocytopenia induced by chemotherapeutic agents.
[25,26] Recombinant human IL-11 (oprelvekin) is known to cause fluid retention with dilutional anemia, peripheral edema, pleural effusions, papilledema, and atrial arrhythmias which is severe and life-threatening in nature.
The major hurdle with the use of thrombopoietin agonist and oprelvekin was cost, romiplostim ($1400), eltrombopag ($2000), and oprelvekin ($2366) for the management of CIT per week, respectively.