About this trial
The ARCHIMEDES study (Anti-inflammatory and anti-thRombotic therapy with colCHicine and low dose rIvaroxaban for Major adverse cardiovascular Events reDuction in ischEmic Stroke) will be a randomized, double-blind, 2x2 factorial clinical trial, which will include at least 3000 and up to a maximum of 4500 patients with ischemic stroke without indication of oral anticoagulation.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with acute ischemic stroke aged ≥18 years old who, regardless of etiology and mechanism, do not have a definitive indication for anticoagulation, and whose symptoms onset has been within the last 14 days;
Receiving standard therapy for acute management of ischemic stroke;
For patients treated with fibrinolytics, a minimum period of 24 hours after the infusion of the lytic drug is required for randomization into the study.
Disqualifiers
Modified Rankin score of 4 or more at randomization;
Refusal to provide consent;
Severe renal failure, with glomerular filtration rate (by CKD-EPI) estimated at <15 mL/min/1.73 m2;
Severe liver failure (child C);
Trial design
Factorial
Treatments tested in this trial
Rivaroxaban 2.5 Mg Oral Tablet
DrugPatients will receive one tablet, per oral or orogastric route, twice a day, for a maximum of 12 months.
Colchicine 0.5 MG
DrugPatients will receive one tablet, per oral or orogastric route, once a day, for a maximum of 12 months.
Placebo Rivaroxaban
DrugPatients will receive one tablet, per oral or orogastric route, twice a day, for a maximum of 12 months.
Placebo Colchicine
DrugPatients will receive one tablet, per oral or orogastric route, once a day, for a maximum of 12 months.
Treatment groups
Trial outcomes
Primary outcomes
Primary efficacy endpoint: Time to cardiovascular death, stroke, myocardial infarction (MI), or urgent arterial
Time to cardiovascular death, stroke, myocardial infarction (MI), or urgent arterial revascularization
Primary safety endpoint (rivaroxaban versus placebo): Time to major bleeding according to the International Society of Thrombosis and Hemostasis classification
Time to major bleeding according to the International Society of Thrombosis and Hemostasis classification
Primary safety endpoint (colchicine versus placebo): Hospitalization for respiratory infections
Time to first hospitalization for respiratory infections
Secondary outcomes
Time to fatal or non-fatal stroke
Time to fatal or non-fatal stroke
Time to CV death, MI, or stroke
Time to CV death, MI, or stroke
Time to death from all causes, MI, or stroke
Time to death from all causes, MI, or stroke
Time to fatal or non-fatal stroke, death, or transient ischemic attack
Time to fatal or non-fatal stroke, death, or transient ischemic attack
Other outcomes
modified Rankin score
modified Rankin score as ordinal outcome
Venous thromboembolism
Time to first venous thromboembolism
New-onset atrial fibrillation
time to new-onset atrial fibrillation
Microvascular obstruction at head MRI (substudy)
Microvascular obstruction at head MRI (substudy)
Locations
Sponsors and contacts
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Brazilian Clinical Research Institute
Lead sponsor
Alliança Diagnostic
Collaborator
This trial is not recruiting at the moment. You can still explore other options: