Can a bone marrow stimulant help people with leg artery disease walk farther?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female subjects must be (a) post-menopausal, (b) surgically sterile or (c) use adequate birth control and have a negative pregnancy test within 3 days prior to administration of study drug and should not be breastfeeding. * Documented symptomatic PAD * Clinically stable (at least 2 months prior to enrollment) history of intermittent claudication or walking impairment (Rutherford Class II) with no change in symptom severity in the 2 months prior to screening. * On statin therapy for previous 3 months prior to enrollment, unless statin intolerant. * Peak Walking Time (PWT) between 1 and 12 minutes on a standardized Gardner treadmill protocol or modified Gardner protocol or less than 12 minutes on a modified Bruce protocol in case PWT on Gardner protocol is more than 12 minutes. * A Doppler-derived ankle-brachial index (ABI) of \< 0.90 in the symptomatic limb after 10 minutes of rest at screening. For subjects with an ABI of \>1.3 (non-compressible arteries) a Toe-Brachial Index (TBI) of \< 0.70 must be obtained for subject qualification, or if ABI is \> 0.9 to 1.0 , and a reduction of 20% in ABI measured within 1 minute of treadmill testing. * On appropriate and stable medical therapy for atherosclerosis for at least 2 months prior to enrollment. * Able to give informed consent. * Diabetics with a dilated eye exam excluding proliferative retinopathy in the previous 12 months prior to enrollment. Exclusion Criteria: * Recent or current active infections (treated with antibiotics) * Recent (6 months prior to randomization) or current active cancer undergoing treatment * Recent (3 months prior to randomization) change in statin or cilostazol therapy * Critical limb ischemia either chronic (Rutherford Class \>II) or acute ischemia manifested by rest pain, ulceration, or gangrene * Recent (3 months prior to randomization) lower extremity vascular surgery, angioplasty or lumbar sympathectomy * Planned participation in a structured exercise treatment protocol in the future or within period of study * Prior myeloid malignancy * Recent (3 months prior to randomization) Unstable angina, myocardial infarction, transient ischemic attack (TIA), stroke or revascularization * Severe heart failure (Class III or IV) or heart muscle disease * Limitation on exercise for symptoms other than intermittent claudication such as arthritis or dyspnea * Below- or above-knee amputation * Wheelchair confinement * Use of a walking aid other than a cane * Walking impairment for reasons other than PAD e.g. Parkinson's disease * Uncontrolled diabetes mellitus (defined as HbA1c \> 10.0) * Chronic renal disease (creatinine of \>2.5 mg/dl) or hepatic disease (\> 3 X elevations in aspartate aminotransferase (AST) and alanine aminotransferase (ALT)) * White blood cell count \< 3k/cmm * Hemoglobin (HGB) \< 10g/dL * Blood Pressure Systolic \>180 and/or Diastolic \>100 * Taking Immunosuppressant drugs * Ophthalmologic conditions associated with a neo-vascular response * Alcohol or drug abuse, or any other disease process that, in the opinion of the PI, will interfere with the ability of the patient to participate in the study * Inability to attend study visits