Effect of the Use of Anticoagulant Therapy During Hospitalization and Discharge in Patients With COVID-19 Infection
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ClinicalTrials.gov Identifier: NCT04508439 |
Recruitment Status : Unknown
Verified August 2020 by Omar Ramos-Peñafiel, Hospital Regional de Alta especialidad de Ixtapaluca.
Recruitment status was: Recruiting
First Posted : August 11, 2020
Last Update Posted : August 11, 2020
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Viral infections provoke the systemic inflammatory response and cause an imbalance between the procoagulant and anticoagulant homeostatic mechanisms. Multiple pathogenic mechanisms are involved, including endothelial dysfunction, increased von Willebrand factor, Toll receptor activation, and tissue factor pathway activation. D-dimer levels greater than 1000 ng / mL are associated with an 18-fold increased risk of mortality. In this context, many patients may require prophylaxis or antithrombotic treatment with low molecular weight heparins. Currently, there is no validated scheme on the dose and timing of the use of antithrombotic drugs.
The study aims to identify the effect of two anticoagulant strategies (prophylactic and therapeutic) on the progression to ventilatory support or death in patients with COVID-19 infection who require hospital care.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Covid19 Pneumonia Coagulation Disorder Pulmonary Embolism | Drug: Enoxaparin | Not Applicable |
Randomized clinical trial in patients with a confirmed infection by COVID-19 who require hospital treatment and subsequent ambulatory surveillance.
Study population. Patients with a diagnosis by PCR of COVID 19, over 18 years of age from the High Specialty Hospital of Ixtapaluca, who meet the inclusion criteria.
Statistic analysis. The student's T-test was carried out to identify the difference in the means of the quantitative variables between the groups. A value of P ≤ 0.05, 95% CI will be considered significant. For the hypothesis test, the chi-square test will be performed, considering a p≤ 0.05, 95% CI value to be significant.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 130 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Intervention Model Description: |
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Masking: | Double (Participant, Care Provider) |
Primary Purpose: | Treatment |
Official Title: | Effect of the Use of Anticoagulant Therapy During Hospitalization and Discharge in Patients With COVID-19 Infection |
Actual Study Start Date : | June 20, 2020 |
Estimated Primary Completion Date : | August 30, 2020 |
Estimated Study Completion Date : | December 30, 2020 |

Arm | Intervention/treatment |
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Experimental: Prophylactic enexaparin
Enoxaparin dose of 1mg / kg / dose twice daily
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Drug: Enoxaparin
Identify the benefit of different doses of low molecular weight heparin (enoxaparin) on the established clinical response due to lack of ventilatory support, length of hospital stay or death in patients requiring hospital care for COVID-19 infection.
Other Name: low molecular weight heparin |
Active Comparator: Therapeutic Enoxaparin
Enoxaparin dose of 1mg / kg / dose daily
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Drug: Enoxaparin
Identify the benefit of different doses of low molecular weight heparin (enoxaparin) on the established clinical response due to lack of ventilatory support, length of hospital stay or death in patients requiring hospital care for COVID-19 infection.
Other Name: low molecular weight heparin |
- low molecular weight heparin (enoxaparin) and ventilatory support time [ Time Frame: 30 days ]Identify the benefit of different doses of low molecular weight heparin (enoxaparin) on ventilatory support time in patients requiring hospital care for COVID-19 infection.
- thrombotic complications and Rivaroxaban [ Time Frame: 30 days ]To compare oral anticoagulation therapy by administering Rivaroxaban 10mg PO every 24 hours on early thrombotic complications
- low molecular weight heparin (enoxaparin) and length of hospital stay [ Time Frame: 30 days ]Identify the benefit of different doses of low molecular weight heparin (enoxaparin) on the length of hospital stay in patients requiring hospital care for COVID-19 infection.
- low molecular weight heparin (enoxaparin) and mortality rate [ Time Frame: 30 days ]Identify the benefit of different doses of low molecular weight heparin (enoxaparin) over mortality rate in patients requiring hospital care for COVID-19 infection.

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Ages Eligible for Study: | 18 Years to 90 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients with a diagnosis of COVID-19 infection confirmed by polymerase chain reaction test (RQ-PCR) requiring hospital care for the administration of supplemental oxygen
Exclusion Criteria:
- Patients with life expectancy less than 48hrs
- Patients who require ventilatory support upon admission
- Age over 75 years or with a history of atrial fibrillation
- History of venous or arterial thrombosis
- Severe neurological impairment
- Absence of a primary caregiver to supervise the administration of medication
- History of cerebral hemorrhage
- History of previous use of oral anticoagulants
- History of major surgery 30 days prior to admission
- Uncontrolled systemic arterial hypertension
- KDIGO stage III chronic kidney disease or less
- Hemodialysis or peritoneal dialysis treatment
- History of active or inactive cancer
- Pregnant or postpartum patients

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04508439
Contact: Omar Ramos-Peñafiel, MD, PhD | +525523351588 | christian.ramos.penafiel@gmail.com |
Mexico | |
Hospital Regional de Alta Especialidad de Ixtapaluca | Recruiting |
Mexico City, Ixtapaluca, Mexico, 56530 | |
Contact: Omar O Ramos-Peñafiel 5523351588 christian.ramos.penafiel@gmail.com |
Responsible Party: | Omar Ramos-Peñafiel, Principal Investigator, Hospital Regional de Alta especialidad de Ixtapaluca |
ClinicalTrials.gov Identifier: | NCT04508439 |
Other Study ID Numbers: |
NR-CEI-HRAEI-19-2020 |
First Posted: | August 11, 2020 Key Record Dates |
Last Update Posted: | August 11, 2020 |
Last Verified: | August 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Covid-19 Mortality anticoagulants Deep venous thrombosis Pulmonary embolism |
COVID-19 Pulmonary Embolism Embolism Hemostatic Disorders Blood Coagulation Disorders Infections Pneumonia, Viral Pneumonia Respiratory Tract Infections Virus Diseases Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases |
Respiratory Tract Diseases Embolism and Thrombosis Vascular Diseases Cardiovascular Diseases Hematologic Diseases Hemorrhagic Disorders Heparin Enoxaparin Heparin, Low-Molecular-Weight Tinzaparin Dalteparin Anticoagulants Fibrinolytic Agents Fibrin Modulating Agents Molecular Mechanisms of Pharmacological Action |