Official Title
InterMediate ProphylACtic Versus Therapeutic Dose Anticoagulation in Critically Ill Patients With COVID-19: A Prospective Randomized Study (The IMPACT Trial)
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.

Recruiting
COVID-19

Drug: Enoxaparin sodium

Intermediate Dose Prophylaxis Arm:
0.5 mg/kg subcutaneously every 12 hours if creatinine clearance greater than or equal to 30 ml/min --OR-- 0.5 mg/kg subcutaneously every 24 hours if creatinine clearance less than 30 ml/min
Therapeutic Dose Anticoagulation Arm:
1 mg/kg subcutaneously every 12 hours
Other Name: Lovenox

Drug: Unfractionated heparin

Intermediate Dose Prophylaxis Arm:
7,500 units subcutaneously every 8 hours
Therapeutic Dose Anticoagulation Arm:
Dosed to target anti-Xa level 0.3 - 0.7 IU/mL or activated partial thromboplastin time (aPTT), according to institutional protocol
Other Name: Sodium heparin

Drug: Fondapariniux

Intermediate Dose Prophylaxis Arm:
2.5 mg daily subcutaneously
Therapeutic Dose Anticoagulation Arm:
Dose by weight:
If greater than or equal to 100 kg: 10 mg daily
If less than 100 kg but greater than or equal to 50 kg: 7.5 mg daily
If less than 50 kg: 5 mg daily
Other Name: Arixtra

Drug: Argatroban

Therapeutic Dose Anticoagulation Arm:
Dosed according to institutional protocol

Eligibility Criteria

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.

Eligibility Gender
All
Eligibility Age
Minimum: 18 Years ~ Maximum: N/A
Countries
United States
Locations

New York Presbyterian Brooklyn Methodist Hospital
Brooklyn, New York, United States

Weill Cornell Medicine
New York, New York, United States

Contacts

Maria T DeSancho, MD, MSc
646-962-2065
mtd2002@med.cornell.edu

Danielle Guarneri
212-746-0974
dag2037@med.cornell.edu

Maria T DeSancho, MD, MSc, Principal Investigator
Weill Medical College of Cornell University

Weill Medical College of Cornell University
NCT Number
Keywords
Covid-19
anticoagulation
MeSH Terms
COVID-19
Heparin
Calcium heparin
Enoxaparin
Enoxaparin sodium
Argatroban