History of transient ischemic attack (TIA), cerebrovascular accident (CVA), gastrointestinal (GI) perforation or arterial thrombotic event within  months prior to randomization or symptomatic peripheral ischemia
Patients with a history of transient ischemic attack (TIA) or cerebrovascular accident (CVA) within the past  months prior to study enrollment are NOT eligible for participation
Recent serious cardiovascular events (within  months) including, but not limited to, transient ischemic attack (TIA), cerebrovascular accident (CVA), or myocardial infarction (MI).
Any history of cerebrovascular accident (CVA) or transient ischemic attack within  months prior to registration.
Patients with history of cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA) or subarachnoid hemorrhage within  months of the first date of treatment on this study
History of seizures except for remote with specific etiology which has resolved (ex: alcohol induced seizure); transient ischemic attack (TIA) or cerebrovascular accident (CVA) within last  months
History of transient ischemic attack (TIA) or cerebrovascular accident (CVA)
Patients with history of cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA) or subarachnoid hemorrhage within six months of the first date of treatment on this study are ineligible
Patients must have international normalized ratio (INR) =< . within  days prior to registration; patients must not be receiving warfarin for therapeutic use, have history of cerebrovascular accident (CVA), history of transient ischemic attack (TIA) requiring intervention or treatment, pre-existing carotid artery disease requiring intervention or treatment, or current use of megestrol acetate (use within  days of registration)
History or evidence of thrombotic or hemorrhagic disorders; including cerebrovascular accident (CVA)/stroke or transient ischemic attack (TIA) or sub-arachnoid hemorrhage within =<  months prior to the first study treatment
Cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA) within  months prior to the first date of study therapy.
history of cerebrovascular accident (CVA) or transient ischemic attack (TIA),
History or evidence of thrombotic or hemorrhagic disorders; including cerebrovascular accident (CVA)/stroke or transient ischemic attack (TIA) or sub-arachnoid hemorrhage within =<  months prior to the first study treatment
History of cerebral vascular accident (CVA) or transient ischemic attack (TIA) =<  months prior to randomization
History of prior cerebrovascular accident (CVA), including transient ischemic attach (TIA)
Any history of CVA or TIA in previous six months
History of dementia, Alzheimers disease, multi-infarct dementia or cerebrovascular accident (CVA) (history of transient ischemic attack [TIA] is allowed)
Cerebrovascular accident (CVA), transient ischemic attack (TIA) within the last  months prior to registration