The Safety and Efficacy of Cilostazol in Ischemic Stroke Patients With Peripheral Arterial Disease (SPAD Study)

Study Overview
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Brief Summary
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The purpose of this study is to investigate the Safety and Efficacy of Cilostazol in slowing down the progression of peripheral arterial disease (PAD) in ischemic stroke patients with PAD in Taiwan.

Detailed Description
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One thousand patients will be randomized to take cilostazol (500 patients) or placebo (500 patients) in parallel groups. Patients will be screened and evaluated on Visits 1 to assess their eligibility prior to randomization. The treatment period (Visit 1-6) will last 12 months and the patient will receive initial and follow-up evaluation (section 4.5) including history and physical examinations, and baseline and end of treatment ABI and carotid IMT assessments. Vascular events and death as well as adverse events including bleeding complications will also be recorded at intervals as detailed in section 4.5.

Official Title
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The Safety and Efficacy of Cilostazol in Ischemic Stroke Patients With Peripheral Arterial Disease (SPAD Study)

Conditions
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Ischemic Stroke

Intervention / Treatment
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* Drug: Cilostazol
* Other: placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male or female patients, age ≧50 years; for female patients, postmenopausal (defined as at least 2 years without menses) has to be confirmed. Ischemic stroke or transient ischemic attack patients who have been taking aspirin 100 mg, QD Neurologically and clinically stable at inclusion PAD (i.e. ankle-brachial index or ABI <1.0) Exclusion Criteria: Patients unable to give informed consent Patients with history of any type of hemorrhagic stroke (intracerebral hemorrhage,subarachnoid hemorrhage, or others) Modified Rankin Scale >4 Patients with history of dementia requiring institutional care Known brain tumor Known anemia (defined as hemoglobin <10.0 g/dL) Known thrombocytopenia (defined as platelet count below 100,000/cm3) AST or ALT > 3 x Upper Normal Limit Calculated creatinine clearance < 30 ml/min according to the Copckroft formula) Known hemostasis or coagulation disorder Congestive heart failure, defined as a previous definitive diagnosis, or present symptoms of at least Category II of the NYHA classification system for CHF Revascularization of the lower limb arteries including bypass surgery, endovascular procedures Symptomatic PAD requiring treatment with cilostazol Known stenosis of the upper limb arteries that may affect the documentation of ABI Patients with known hypersensitivity to cilostazol

Ages Eligible for Study
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Minimum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Cilostazol<br>Pletaal® (Cilostazol) 100 mg, bid p.o. | Drug: Cilostazol<br>* 100 mg, bid p.o.<br>* Other names: Pletaal®;|
| Placebo Comparator: placebo<br>Placebo 1 tablet, bid p.o. | Other: placebo<br>* 1 tablet, bid<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The primary endpoint for this study is slowdown of PAD progression based on ABI. |  | 2 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Carotid intima-media thickness | Carotid intima-media thickness. Vascular events, including recurrent stroke, myocardial infarction, unstable angina,other vascular events, and all death. Safety, including major bleeding events, hemorrhagic stroke, any death. | 2 years |