| Exclusion Criteria: | 1) Disease Related: Subject has been diagnosed with AML or has a blast count >/= 10% by peripheral blood or bone marrow biopsy; Subject has a prior history of leukemia; Subject has a prior history of bone marrow or stem cell transplantation; Subject has a prior malignancy (other than in situ cervical cancer, controlled prostate cancer, or basal cell cancer of the skin) unless treated with curative intent and without evidence of disease for >/= 3 years before randomization; Subject has active or uncontrolled infections;
2) Continued from #1: Disease related, continued:Subject has unstable angina, congestive heart failure [New York Heart Association (NYHA) > class II], uncontrolled hypertension (diastolic > 100 mmHg), uncontrolled cardiac arrhythmia, or recent (within 1 year) myocardial infarction; Subject has a history of arterial thrombosis (eg, stroke or transient ischemic attack) in the past year; Subject has a history of venous thrombosis that currently requires anti-coagulation therapy.
3) Medications: Subject received interleukin (IL)-11 within 4 weeks of screening; Subject previously received a thrombopoietic growth factor (other than romiplostim), Subject has a known hypersensitivity to any recombinant E coli-derived product (eg, InfergenŽ, NeupogenŽ, Somatropin, Actimmune).
4) General: Subject is currently enrolled in investigational device or drug study(ies), has not yet completed at least 4 weeks since ending investigational device or drug study(ies) (other than parent romiplostim study), or subject is receiving other investigational agent(s)/device(s), Subject is of child-bearing potential and is evidently pregnant (eg, positive human chorionic gonadotropin [HCG] test) or is breast feeding; Subject is not using adequate contraceptive precautions;
5) Continued from #4 above: General continued: Subject has any kind of disorder that compromises his/her ability to give written informed consent (and does not have a legally acceptable representative) or is unable to comply with study procedures. |