CovidResearchTrials by Shray Alag


CovidResearchTrials Covid 19 Research using Clinical Trials (Home Page)


Report for D013927: Thrombosis NIH

(Synonyms: Thrombosi, Thrombosis)

Developed by Shray Alag
Clinical Trial MeSH HPO Drug Gene SNP Protein Mutation


Correlated Drug Terms (11)


Name (Synonyms) Correlation
drug343 Heparin Infusion Wiki 0.41
drug205 Clopidogrel Wiki 0.41
drug344 Heparin SC Wiki 0.41
drug287 Enoxaparin/Lovenox Intermediate Dose Wiki 0.41
drug267 Doppler Echo Wiki 0.41
drug315 Fondaparinux Wiki 0.41
drug285 Enoxaparin Prefilled Syringe [Lovenox] Wiki 0.41
drug31 Acetylsalicylic acid Wiki 0.41
drug816 TEM-tPA Wiki 0.41
drug286 Enoxaparin Prophylactic Dose Wiki 0.41
drug851 Tirofiban Injection Wiki 0.41

Correlated MeSH Terms (10)


Name (Synonyms) Correlation
D020246 Venous Thrombosis NIH 0.71
D016769 Embolism and Thrombosis NIH 0.41
D004617 Embolism NIH 0.41
D013923 Thromboembolism NIH 0.29
D016638 Critical Illness NIH 0.11
D011024 Pneumonia, Viral NIH 0.07
D014777 Virus Diseases NIH 0.04
D011014 Pneumonia NIH 0.03
D045169 Severe Acute Respiratory Syndrome NIH 0.03
D018352 Coronavirus Infections NIH 0.02

Correlated HPO Terms (0)


Name (Synonyms) Correlation

There are 6 clinical trials

Clinical Trials


1 COVID-19 Anticoagulation in Children - Thromboprophlaxis (COVAC-TP) Trial

The purpose of this study is to evaluate the safety, dose-requirements, and exploratory efficacy of twice-daily subcutaneous enoxaparin as venous thromboembolism prophylaxis in children (birth to 18 years) hospitalized with signs and/or symptoms of SARS-CoV-2 infection (i.e., COVID-19).

NCT04354155 Infection Viral Thromboses, Venous Drug: Enoxaparin Prefilled Syringe [Lovenox]
MeSH:Thrombosis Venous Thrombosis Virus Diseases
HPO:Deep venous thrombosis Venous thrombosis

Primary Outcomes

Description: To investigate the safety of in-hospital thromboprophylaxis with twice-daily low-dose enoxaparin thromboprophylaxis as measured by cumulative incidence of ISTH-defined clinically-relevant bleeding events during hospitalization. Clinically relevant bleeding episodes may include any of the following: 1) fatal bleeding; 2) clinically overt bleeding associated with a decline in hemoglobin of ≥2g/dL in a 24h period; 3) retroperitoneal, pulmonary, or central nervous system bleeding; 4) bleeding requiring surgical intervention in an operating suite; 5) bleeding for which a blood product is administered (blood product administration not directly attributable to the patient's underlying condition); 6) bleeding that requires medical or surgical intervention to restore hemostasis, other than in an operating suite.

Measure: Safety of in-hospital thromboprophylaxis

Time: Day 30

Secondary Outcomes

Description: The median twice-daily enoxaparin dose, as measured in mg/kg, required to achieve a 4 hour post-dose anti-factor Xa level of 0.20-0.49 anti-Xa U/mL in children hospitalized with COVID-19, and to compare dose-requirements by age group (birth to <1 year old, 1-<6 years old, 6-<13 years old, and 13-<18 years old).

Measure: Median twice-daily enoxaparin dose

Time: 4 hours post initial dose

Other Outcomes

Description: To investigate, on a preliminary basis, the efficacy of in-hospital thromboprophylaxis with twice-daily enoxaparin in children hospitalized with COVID-19, as measured by the proportion of serial D-dimer levels obtained at standardized time points that are <2 times the upper limit of normal (<2x ULN) values for age.

Measure: Efficacy of in-hospital thromboprophylaxis as measured by the proportion of serial D-dimer levels

Time: Enrollment, Day 1, Day 2, and Day 3, 7, and 14 if still hospitalized

Description: To investigate, on a preliminary basis, the efficacy of in-hospital thromboprophylaxis with twice-daily enoxaparin in children hospitalized with COVID-19, as measured by confirmed HA-VTE.

Measure: Efficacy of in-hospital thromboprophylaxis as measured by confirmed HA-VTE

Time: Day 30

Description: To investigate, on a preliminary basis, the efficacy of in-hospital thromboprophylaxis with twice-daily enoxaparin in children hospitalized with COVID-19, as measured by median duration of in-hospital increased respiratory support (new requirement for high-flow nasal cannula, non-invasive ventilation, and/or mechanical ventilation, relative to any at-home baseline requirement).

Measure: Efficacy of in-hospital thromboprophylaxis as measured by median duration of increased respiratory support

Time: Day 30

2 Assessment of Endothelial and Haemostatic Changes During Severe SARS-CoV-2 Infection

The outbreak at covid-19 is caused by the SARS-CoV-2 virus. This virus can be responsible for severe respiratory failure but also for extra-respiratory organ dysfunctions associated with severe inflammatory stress. The endothelium is an important structure of the blood vessels and is implicated in the organ failure of many patients admitted in intensive care units. It could be affected by the virus and its alteration may explain the organ dysfunction of covid-19 ICU patients as well as the thrombotic processes frequently obstructed in this infection.

NCT04357847 Covid-19 Endothelial Dysfunction Thrombosis Critically Ill
MeSH:Thrombosis Critical Illness

Primary Outcomes

Description: Plasma of covid-19 patients will be tested for endothelial injuries, notably with the measurement of InterCellular Adhesion Molecule 1 level by Enzym-Linked Immunosorbent Assay. The association of these levels with 28-days mortality will be evaluated as prognosis markers.

Measure: Association of InterCellular Adhesion Molecule-1 plasma level with 28 days mortality

Time: 24 hours

Secondary Outcomes

Description: Endothelin-1 will be assessed in blood as a maker of endothelial injuries, expressed in pg/mL. its association with 28 -days mortality will be evaluated.

Measure: Association of Endothelin-1 plasma level with 28 days mortality

Time: 24 hours

Description: Vascular Endothelial Growth Factor A plasma level will be measured in blood as a marker of endothelial injury expressed in pg/mL. its association with 28 -days mortality will be evaluated.

Measure: Association of Vascular Endothelial Growth Factor A plasma level with 28 days mortality

Time: 24 hours

Description: This soluble receptor is another marker of endothelial injury and will be measured in blood and expressed as pg/mL. Its association with 28-days mortality will be evaluated.

Measure: Association of soluble Vascular Endothelial Growth Factor Receptor type 1 with 28 days mortality

Time: 24 hours

Description: syndecan -1 is a marker of degradation of glycocalyx, raised during endothelial injury. It will be measured in blood and expressed as pg/mL. Its assocation with 28-days mortality will be evaluated.

Measure: Association of syndecan -1 plasma level with 28 days mortality

Time: 24 hours

Description: D-dimers si marker of enhanced thrombotic activity. It may be increased during covid-19 disease but its correlation with endothelial injury is not known. It will be measured in blood and expressed as microgrammes/L, and then correlated with ICAM-1 plasma levels

Measure: Association of D-dimers plasma levels with thrombotic events

Time: 24 hours

Description: This marker may be raised during endothelial injury and may explained thrombotic status of covid-19 patients. Its blood levels will be measured and expressed as international unit/dL, and correlated with ICAM-1 plasma levels

Measure: Association of von Willebrandt Factor with thrombotic events

Time: 24 hours

Description: Clot Stiffness and its fibrinogen and platelet contributions (expressed in kPa) will be measured as novative approach, using Quantra (Stago Inc) device, to explore hemostasis alterations of covid-19 patients.

Measure: Association of Viscoelastic testing with thrombotic events

Time: 24 hours

3 Incidence of Deep Vein Thrombosis at Doppler Echo in Patients With SARS-Cov-2 Pneumopathy Hospitalized in ICU

The main objective of the study is to determine the incidence of deep vein thromboses at Doppler echo in patients with SARS-Cov-2 pneumopathy upon their entry into ICU and after 7 days of hospitalization in ICU. This is a monocentric interventional study (RIPH 2).

NCT04363528 Deep Vein Thrombosis Other: Doppler Echo
MeSH:Thrombosis Venous Thrombosis
HPO:Deep venous thrombosis Venous thrombosis

Primary Outcomes

Description: Deep vein thrombosis at Doppler echo

Measure: Incidence of Deep Vein Thrombosis at Doppler Echo in Patients With SARS-Cov-2 Pneumopathy Hospitalized in ICU

Time: Day 0

Description: Deep vein thrombosis at Doppler echo

Measure: Incidence of Deep Vein Thrombosis at Doppler Echo in Patients With SARS-Cov-2 Pneumopathy Hospitalized in ICU

Time: Day 7

4 Evaluation of TEM-tPA (Thromboelastometry With tPA) to Detect Covid-19 Patients at High Risk of Thrombosis

The coronavirus disease of 2019 (COVID-19) is a viral illness caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV2), now deemed a pandemic by the World Health Organization. Some COVID-19 patients may develop coagulopathy which is associated with poor prognosis and high risk of thrombosis. Some patients develop severe thrombotic complications, such as pulmonary embolism, despite anti-thrombotic prophylaxis by low molecular weight heparin. The aim of this project is to evaluate modified thromboelastometry for identifying patients at high risk of thrombosis. The hypothesize is that hypofibrinolysis with increased plasma PAI-1, TAFI (thrombin-activatable fibrinolysis inhibitor ) levels in association with high thrombin generation may explain high incidence of thrombosis in this population. A simple laboratory assay, widely available in hospitals, such as thromboelastometry, might be of great clinical interest to detect Covid-19 patients with high risk of thrombosis. In order to make ROTEM more sensitive to hypofibrinolysis, exogenous t-PA will be added in the assay. The preliminary results showed that patients with Covid-19 have significant hypercoagulability detectable with ROTEM and Covid-19 patients with thrombosis have both hypercoagulability and hypofibrinolysis.

NCT04366778 Thrombosis Covid-19 SARS-CoV 2 Diagnostic Test: TEM-tPA
MeSH:Thrombosis

Primary Outcomes

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 0

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 3

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 6

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 9

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 12

Description: TEM-tPA profile of patients will be defined with a combination of the following parameters : Maximal Clot Firmness (MCF) (mm) alpha angle (°) Lysis Index (LI) 30 (%) Lysis Onset Time (LOT) (min)

Measure: Coagulability

Time: Day 15

Description: Occurence of VTE or arterial thrombosis during hospitalization : Pulmonary embolism diagnosed with CT scan Venous or arterial thrombosis diagnosed with ultrasound exam

Measure: Venous thrombotic event (VTE) or arterial thrombosis

Time: Day 15

5 Intermediate or Prophylactic-Dose Anticoagulation for Venous or Arterial Thromboembolism in Severe COVID-19: A Cluster Based Randomized Selection Trial (IMPROVE-COVID)

This study is being conducted to assess the effectiveness of intermediate versus prophylactic doses of anticoagulation (blood thinners) in patients critically ill with COVID-19 in the intensive care units (ICUs) throughout the hospital. Anticoagulation is part of the patient's usual standard of care but determining the dose of anticoagulation is based on physician preference. The investigators are conducting this study (a randomized trial with adaptive design employing cluster randomization) with the support of all of the ICUs to collect data in order to determine what should be the standard of care in terms of anticoagulation in these critically ill patients. The patients care will not be altered other than the choice of anticoagulation (both approved and used throughout the hospital as standard of care) based on the ICU bed they are assigned. Patient data will be collected until discharge.

NCT04367831 COVID-19 Venous Thromboses Arterial Thrombosis Drug: Enoxaparin Prophylactic Dose Drug: Heparin Infusion Drug: Heparin SC Drug: Enoxaparin/Lovenox Intermediate Dose
MeSH:Thrombosis Thromboembolism Venous Thrombosis
HPO:Deep venous thrombosis Thromboembolism Venous thrombosis

Primary Outcomes

Description: Composite of being alive and without clinically-relevant venous or arterial thrombotic events at discharge from ICU (without transfer to another ICU or palliative care unit/hospice) or at 30 days (if ICU duration lasted 30 days or longer).

Measure: Total Number of Patients with Clinically Relevant Venous or Arterial Thrombotic Events in ICU

Time: Discharge from ICU or 30 days

Secondary Outcomes

Description: Composite of being alive and without clinically-relevant venous or arterial thrombotic events at discharge from ICU (without transfer to another ICU or palliative care unit/hospice) or at 30 days (if ICU duration lasted 30 days or longer).

Measure: Total Number of Patients with In hospital Clinically Relevant Venous or Arterial Thrombotic Events

Time: Discharge from hospital or 30 days

Description: Length of stay measured in days.

Measure: ICU Length of Stay

Time: Discharge from ICU or 30 days

Description: The impact of intermediate-dose anti-coagulation compared with prophylactic anti-coagulation on rates of acute kidney injury and renal recovery in the ICU will be measured with the total number of patients who need of renal replacement therapy in the ICU.

Measure: Total Number of Patients with the Need for Renal Replacement Therapy in the ICU

Time: Discharge from hospital or 30 days

Description: Major bleeding will be assessed by BARC criteria, also explored by International Society on Thrombosis and Haemostasis (ISTH) and Thrombolysis in Myocardial Infarction (TIMI) criteria.

Measure: Total Number of Patients with Major bleeding in the ICU

Time: Discharge from hospital or 30 days

Description: Length of stay measured in days.

Measure: Hospital Length of Stay

Time: Discharge from hospital or 30 days

6 Platelet Inhibition With GP IIb/IIIa Inhibitor in Critically Ill Patients With Coronavirus Disease 2019 (COVID-19). A Compassionate Use Protocol

This is a compassionate use, proof of concept, phase IIb, prospective, interventional, pilot study in which the investigators will evaluate the effects of compassionate-use treatment with IV tirofiban 25 mcg/kg, associated with acetylsalicylic acid IV, clopidogrel PO and fondaparinux 2.5 mg s/c, in patients affected by severe respiratory failure in Covid-19 associated pneumonia who underwent treatment with continuous positive airway pressure (CPAP).

NCT04368377 Pneumonia, Viral Corona Virus Infection Respiratory Failure Embolism and Thrombosis Drug: Tirofiban Injection Drug: Clopidogrel Drug: Acetylsalicylic acid Drug: Fondaparinux
MeSH:Coronavirus Infections Severe Acute Respiratory Syndrome Pneumonia, Viral Pneumonia Respiratory Insufficiency Thrombosis Embolism Embolism and Thrombosis
HPO:Pneumonia Thromboembolism

Primary Outcomes

Description: Change in ratio between partial pressure of oxygen in arterial blood, measured by means of arterial blood gas analysis, and inspired oxygen fraction at baseline and after study treatment

Measure: P/F ratio

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Change in partial pressure of oxygen in arterial blood, measured by means of arterial blood gas analysis, at baseline and after study treatment

Measure: PaO2 difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Change in alveolar-arterial gradient of oxygen at baseline and after study treatment. Arterial alveolar gradient will be calculated using the following parameters derived from arterial blood gas analysis: partial pressure of oxygen in arterial blood and partial pressure of carbon dioxide in arterial blood.

Measure: A-a O2 difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Secondary Outcomes

Description: Number of days on continuous positive end expiratory pressure (CPAP)

Measure: CPAP duration

Time: From the first day of study drugs administration (T0) until day 7 post study drugs administration

Description: Difference in intensity of the respiratory support (non invasive mechanical ventilation, CPAP, high flow nasal cannula (HFNC), Venturi Mask, nasal cannula, from higher to lower intensity, respectively) employed at baseline and at 72 and 168 hours after study treatment initiation

Measure: In-hospital change in intensity of the respiratory support

Time: At baseline and 72 and 168 hours after treatment initiation

Description: Difference in partial pressure of carbon dioxide in arterial blood, measured by means of arterial blood gas analysis, at baseline and after study treatment

Measure: PaCO2 difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Difference in concentration of bicarbonate in arterial blood, measured by means of arterial blood gas analysis, at baseline and after study treatment

Measure: HCO3- difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Difference in concentration of lactate in arterial blood, measured by means of arterial blood gas analysis, at baseline and after study treatment

Measure: Lactate difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Difference in hemoglobin concentration in blood samples, measured by means of blood chemistry test, at baseline and after study treatment.

Measure: Hb difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Difference in platelet concentration in blood samples, measured by means of blood chemistry test, at baseline and after study treatment.

Measure: Plt difference

Time: At baseline and 24, 48 and 168 hours after treatment initiation

Description: Any major or minor adverse effect occuring during and after the administration of the study drug (e.g. bleeding)

Measure: Adverse effects

Time: From the first day of study drugs administration until day 30 post study drugs administration


HPO Nodes