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Cilostazol for Prevention of Recurrent Stroke in Africa (CLARITY-AFRICA): A Phase 3 Randomized Clinical Trial

Cilostazol for Prevention of Recurrent Stroke in Africa (CLARITY-AFRICA): A Phase 3 Randomized Clinical Trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
PACTR
Registry ID
PACTR202507787267309
Enrollment
1100
Registered
2025-07-23
Start date
2025-09-01
Completion date
Unknown
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nervous System Diseases

Interventions

Cilostazol
Placebo

Sponsors

Northern Californian Institute of Research and Education
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Above the age of Above the age of 30 years; male or female (sex is a biological variable of interest); 2. Ischemic stroke or high-risk TIA (ABCD2 score >= 6) diagnosis no greater than six months before enrollment. Ischemic strokes including lacunar, large-vessel atherosclerotic, embolic stroke of undetermined source subtypes are eligible 3. Ischemic stroke or TIA should be confirmed by either with a cranial CT or MRI within 10 days of symptom onset, 4. Aspirin or clopidogrel monotherapy, Participants with major TIA are eligible after completing 21 days of dual antiplatelets after which they are being switched to either aspirin or clopidogrel monotherapy 5. Subjects with stroke may present with any of the following additional conditions: • age =65 years, • documented diabetes mellitus or previous treatment with oral hypoglycemic or insulin; • documented hypertension >140/90mmHg or previous treatment with anti-hypertensive medications; • Mild to moderate renal dysfunction (eGFR 60-30ml/min/1.73m2); • Prior myocardial infarction; 6. Legally competent to sign informed consent; 7. In the opinion of the treating physician, patient is medically stable, capable of participating in a randomized trial, and willing and able to attend follow-up.

Exclusion criteria

Exclusion criteria: 1. Unable to provide a valid informed consent; for participants with inability to comprehend the study details where there is no proxy nor a legally authorized representative (LAR) 2. Contraindications to cilostazol; namely (i) hypersensitivity, (ii) active pathologic bleeding, e.g. bleeding peptic ulcer, intracranial bleeding due to reversible platelet aggregation, (iii) congestive cardiac failure of any severity 3. Hemorrhagic stroke survivor within the last 2 years; 4. Recurrent ischemic stroke 5. Use of an anticoagulant medication or indication for use of an anticoagulant (e.g. atrial fibrillation) 6. On dual antiplatelet therapy (patients are eligible after completion of a course of dual antiplatelet therapy; 7. Modified Rankin Scale 5; 8. Thrombocytopenia (platelet count <1000,000); 9. Severe liver dysfunction (active hepatitis or hepatic insufficiency with Child-Pugh score B or C); 10. Congestive heart failure, defined as NYHA Class III or above (marked limitation of physical activity); 11. Nursing/pregnant mothers; 12. Do not agree to the filing, forwarding and use of his/her pseudonymized data.

Design outcomes

Primary

MeasureTime frame
A composite of Stroke (ischemic and hemorrhagic), myocardial infarction, or vascular death (MACE).

Secondary

MeasureTime frame
Safety measures – major haemorrhage: fatal haemorrhage, hemorrhagic stroke, hemorrhage requiring transfusion, hemorrhage causing vision loss;Recurrent ischemic stroke;Hemorrhagic stroke;Cardiovascular deaths;All cause deaths ;Quality of life;Global cognitive performance;Side effects, adverse events;Implementation outcomes- adoption, implementation cost

Countries

Ghana

Contacts

Public ContactNathaniel Mensah

Komfo Anokye. Teaching Hospital

nathanieladuseimensah@yahoo.com233244371990

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026