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临床试验/NCT06396858
NCT06396858尚未招募4 期

A 2 x 2 Factorial Randomized Clinical Trial Evaluating Anti-inflammatory and Anti-thrombotic Strategy in Acute Ischemic Stroke

Brazilian Clinical Research Institute0 个研究点目标入组 4,500 人开始时间: 2026年7月1日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
4 期
状态
尚未招募
发起方
入组人数
4,500
主要终点
Primary efficacy endpoint: Time to cardiovascular death, stroke, myocardial infarction (MI), or urgent arterial

研究概览

简要总结

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.

详细描述

In patients with ischemic stroke, within 14 days of symptom onset, to establish the efficacy and safety of two strategies in parallel: low-dose rivaroxaban and low-dose colchicine, compared with placebo.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Factorial
主要目的
Prevention
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

盲法说明

Matching placebos will be produced for rivaroxaban and colchicine.

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者
否

入选标准

  • •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.

排除标准

  • •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);
  • •Indication for full-dose anticoagulation (for example, venous thromboembolism or atrial fibrillation);
  • •Previous hemorrhagic stroke or history of intracranial hemorrhage;
  • •Systemic treatment with a potent CYP 3A4 inhibitor (such as azole antifungals and protease inhibitors), or with a potent 3A4 inducer (such as rifampicin, phenytoin, phenobarbital, or carbamazepine);
  • •History of inflammatory bowel disease or chronic diarrhea;
  • •Prolonged treatment (> 1 month) with immunosuppressants or systemic corticosteroids;
  • •History of recurrent pneumonia (3 or more hospitalizations in the last 12 months);
  • •Pregnancy or breastfeeding;
  • •Any other comorbidity other than stroke and CV disease (e.g., metastatic cancer) that, in the investigator's opinion, has a significant impact on the 12-month survival.

研究组 & 干预措施

Group 4

Placebo Comparator

rivaroxaban placebo BID + colchicine placebo QD

干预措施: Placebo Rivaroxaban (Drug)

Group 2

Active Comparator

rivaroxaban 2.5 mg BID + colchicine placebo QD

干预措施: Placebo Colchicine (Drug)

Group 4

Placebo Comparator

rivaroxaban placebo BID + colchicine placebo QD

干预措施: Placebo Colchicine (Drug)

Group 1

Active Comparator

rivaroxaban 2.5 mg Twice a day (BID) + colchicine 0.5 mg once daily (QD)

干预措施: Rivaroxaban 2.5 Mg Oral Tablet (Drug)

Group 2

Active Comparator

rivaroxaban 2.5 mg BID + colchicine placebo QD

干预措施: Rivaroxaban 2.5 Mg Oral Tablet (Drug)

Group 1

Active Comparator

rivaroxaban 2.5 mg Twice a day (BID) + colchicine 0.5 mg once daily (QD)

干预措施: Colchicine 0.5 MG (Drug)

Group 3

Active Comparator

rivaroxaban placebo BID + colchicine 0.5 mg QD

干预措施: Colchicine 0.5 MG (Drug)

Group 3

Active Comparator

rivaroxaban placebo BID + colchicine 0.5 mg QD

干预措施: Placebo Rivaroxaban (Drug)

结局指标

主要结局

Primary efficacy endpoint: Time to cardiovascular death, stroke, myocardial infarction (MI), or urgent arterial

时间窗: 12 months

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

时间窗: 12 months

Time to major bleeding according to the International Society of Thrombosis and Hemostasis classification

Primary safety endpoint (colchicine versus placebo): Hospitalization for respiratory infections

时间窗: 12 months

Time to first hospitalization for respiratory infections

次要结局

  • Net clinical endpoint: time to CV death, MI, stroke, fatal bleeding, or critical site bleeding(12 months)
  • Time to fatal or non-fatal stroke, death, or transient ischemic attack(12 months)
  • Time to death from all causes, MI, or stroke(12 months)
  • Time to CV death, MI, or stroke(12 months)
  • Time to fatal or non-fatal stroke(12 months)
  • Time to all-cause death(12 months)

研究者

发起方
Brazilian Clinical Research Institute
申办方类型
Other
责任方
Sponsor

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