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Anticoagulation in Critically Ill Patients With COVID-19 (The IMPACT Trial)

Phase 4
Terminated
Conditions
COVID-19
Interventions
Registration Number
NCT04406389
Lead Sponsor
Weill Medical College of Cornell University
Brief Summary

The purpose of this study is to determine if therapeutic dose anticoagulation (experimental group) improves 30-day mortality in participants with COVID-19 compared to those patients receiving the intermediate dose prophylaxis (control group). Following screening, subjects will be randomized 1:1 to intermediate dose prophylaxis or therapeutic dose anticoagulation treatment arms.Treatment will continue for 28 days, followed by a 6 month follow-up period.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
14
Inclusion Criteria
  • Age >18 years old
  • COVID-19 positive on (RT-PCR) nasopharyngeal swab, or suspected COVID-19 infection with detectable SARS-CoV-2 IgG or IgM.
  • Intensive care unit (ICU) patient or non-ICU patient on invasive mechanical ventilation, BiPAP, 100% non-rebreather mask, or high flow oxygen or supplemental oxygen of at least 4 liters per minute nasal cannula.
  • D dimer level greater than 700 ng/mL (3 times the upper limit of normal).
Exclusion Criteria
  • Objectively documented deep vein thrombosis or pulmonary embolism
  • Patients in whom there is very high suspicion for pulmonary embolism and are on full-dose anticoagulation as per the treating physician
  • Platelets <30,000 not due to disseminated intravascular coagulation (DIC), based on the International Society of Thrombosis and Haemostasis (ISTH) criteria and American Society of Hematology (ASH) Frequently Asked Questions
  • Active bleeding that poses a contraindication to therapeutic anticoagulation in the opinion of the investigator.
  • History of bleeding diathesis (e.g., hemophilia, severe von Willebrand disease, severe thrombocytopathy)
  • History of intracranial hemorrhage in the last 90 days
  • History of ischemic stroke in the past 2 weeks
  • Major neurosurgical procedure in the past 30 days
  • Cardiothoracic surgery in the past 30 days
  • Intra-abdominal surgery in the past 30 days
  • Intracranial malignancy
  • Patients who require therapeutic anticoagulation for other reasons like atrial fibrillation, deep venous thrombosis, pulmonary embolism, or antiphospholipid syndrome.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Intermediate Dose ProphylaxisUnfractionated heparinSubjects will receive one of the following interventions, at their physician's discretion: * Enoxaparin 0.5 mg/kg subcutaneously every 12 hours if creatinine clearance greater than or equal to 30 ml/min * Enoxaparin 0.5 mg/kg subcutaneously every 24 hours if creatinine clearance less than 30 mL/min * If patient develops acute kidney injury: unfractionated heparin 7,500 units subcutaneously every 8 hours. * Fondaparinux (if history of heparin-inducted thrombocytopenia \[HIT\]) 2.5 mg daily subcutaneously
Intermediate Dose ProphylaxisFondapariniuxSubjects will receive one of the following interventions, at their physician's discretion: * Enoxaparin 0.5 mg/kg subcutaneously every 12 hours if creatinine clearance greater than or equal to 30 ml/min * Enoxaparin 0.5 mg/kg subcutaneously every 24 hours if creatinine clearance less than 30 mL/min * If patient develops acute kidney injury: unfractionated heparin 7,500 units subcutaneously every 8 hours. * Fondaparinux (if history of heparin-inducted thrombocytopenia \[HIT\]) 2.5 mg daily subcutaneously
Therapeutic Dose AnticoagulationFondapariniuxSubjects will receive one of the following interventions, at their physician's discretion: * Unfractionated heparin (UFH) to target anti-Xa level 0.3 -0.7 IU/mL or activated partial thromboplastin time (aPTT) (according to institutional protocol). * Enoxaparin 1 mg/kg subcutaneously every 12 hours * Argatroban (if heparin-induced thrombocytopenia \[HIT\]), dosed according to institutional protocol. * Fondaparinux (if HIT and creatinine clearance greater than or equal to 50 ml/min) dosed by weight: * ≥100 kg: 10 mg daily * \<100 kg but ≥50 kg: 7.5 mg daily * \<50 kg: 5 mg daily
Therapeutic Dose AnticoagulationArgatrobanSubjects will receive one of the following interventions, at their physician's discretion: * Unfractionated heparin (UFH) to target anti-Xa level 0.3 -0.7 IU/mL or activated partial thromboplastin time (aPTT) (according to institutional protocol). * Enoxaparin 1 mg/kg subcutaneously every 12 hours * Argatroban (if heparin-induced thrombocytopenia \[HIT\]), dosed according to institutional protocol. * Fondaparinux (if HIT and creatinine clearance greater than or equal to 50 ml/min) dosed by weight: * ≥100 kg: 10 mg daily * \<100 kg but ≥50 kg: 7.5 mg daily * \<50 kg: 5 mg daily
Intermediate Dose ProphylaxisEnoxaparin sodiumSubjects will receive one of the following interventions, at their physician's discretion: * Enoxaparin 0.5 mg/kg subcutaneously every 12 hours if creatinine clearance greater than or equal to 30 ml/min * Enoxaparin 0.5 mg/kg subcutaneously every 24 hours if creatinine clearance less than 30 mL/min * If patient develops acute kidney injury: unfractionated heparin 7,500 units subcutaneously every 8 hours. * Fondaparinux (if history of heparin-inducted thrombocytopenia \[HIT\]) 2.5 mg daily subcutaneously
Therapeutic Dose AnticoagulationUnfractionated heparinSubjects will receive one of the following interventions, at their physician's discretion: * Unfractionated heparin (UFH) to target anti-Xa level 0.3 -0.7 IU/mL or activated partial thromboplastin time (aPTT) (according to institutional protocol). * Enoxaparin 1 mg/kg subcutaneously every 12 hours * Argatroban (if heparin-induced thrombocytopenia \[HIT\]), dosed according to institutional protocol. * Fondaparinux (if HIT and creatinine clearance greater than or equal to 50 ml/min) dosed by weight: * ≥100 kg: 10 mg daily * \<100 kg but ≥50 kg: 7.5 mg daily * \<50 kg: 5 mg daily
Therapeutic Dose AnticoagulationEnoxaparin sodiumSubjects will receive one of the following interventions, at their physician's discretion: * Unfractionated heparin (UFH) to target anti-Xa level 0.3 -0.7 IU/mL or activated partial thromboplastin time (aPTT) (according to institutional protocol). * Enoxaparin 1 mg/kg subcutaneously every 12 hours * Argatroban (if heparin-induced thrombocytopenia \[HIT\]), dosed according to institutional protocol. * Fondaparinux (if HIT and creatinine clearance greater than or equal to 50 ml/min) dosed by weight: * ≥100 kg: 10 mg daily * \<100 kg but ≥50 kg: 7.5 mg daily * \<50 kg: 5 mg daily
Primary Outcome Measures
NameTimeMethod
30-day Mortality30 days

Comparison of number of COVID-19 positive patients who have died within 30 days of starting treatment on each treatment arm

Secondary Outcome Measures
NameTimeMethod
Number of Documented Venous Thromboembolism (VTE), Arterial Thrombosis (Stroke, Myocardial Infarction, Other) and Microthrombosis Events6 months

Comparison of number of documented VTE, arterial thrombosis and microthrombosis events on each treatment arm

Number of Major and Clinically Relevant Non-major Bleeding Events6 months

Comparison of major and clinically-relevant non-major bleeding events on each treatment arm, as defined by the International Society of Thrombosis and Haemostasis (ISTH) criteria.

Length of Intensive Care Unit (ICU) Stay in Days6 months

Comparison of length of ICU stay in days between each treatment arm.

Trial Locations

Locations (2)

Weill Cornell Medicine

🇺🇸

New York, New York, United States

New York Presbyterian Brooklyn Methodist Hospital

🇺🇸

Brooklyn, New York, United States

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