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Clinical Trial Summary

Patients with COVID-19 have special demographic characteristics including thromboembolic risk factors .

The pharmacokinetics of enoxaparin administered subcutaneously in the intensive care unit patient are not described.

Finally, given the lack of knowledge on the pharmacokinetic/pharmacodynamic properties of enoxaparin in intensive care unit patients infected with SARS-CoV-2, we propose to conduct a prospective multicenter cohort study to collect the biological data necessary for its study.


Clinical Trial Description

D-dimers greater than 1 μg/mL are a prognostic factor for 28-day mortality (odds ratio=18, 2-128). The use of preventive doses of enoxaparin (4,000 to 6,000 anti-Xa per day) or unfractionated heparin (10,000 to 15,000 IU per day) has been associated with a reduction in mortality of approximately one-third in patients with D-dimer levels greater than 3 μg/mL or those with sepsis-induced coagulopathy (SIC (sepsis-induced coagulopathy) score > 4)

For the intensive care unit patient, the preventive enoxaparin dosages were increased to 4,000 anti-Xa IU twice daily and to 6,000 anti-Xa IU twice daily if the patient weighs more than 120 kg. Curative treatment is even proposed in cases of marked inflammatory syndrome and/or hypercoagulability (e.g. fibrinogen > 8 g/L or D-Dimer > 3 μg/mL or 3000 ng/mL) even without symptomatic thrombosis.

Given the lack of data on the use of these high "prophylactic" doses of enoxaparin, it is proposed that anti-Xa activity be monitored after the 3rd injection, and then regularly in the event of renal failure (because LMWHs are renally eliminated), to look for overdosage exposing a higher risk of bleeding. It is also proposed to regularly monitor (at least every 48 hours) the hemostasis of patients in search of multivisceral failure, or of coagulopathy of consumption which will require a re-evaluation of the heparin therapy dosage, these events being associated with an increased risk of haemorrhage. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04520620
Study type Interventional
Source Centre Hospitalier Universitaire de Saint Etienne
Contact
Status Withdrawn
Phase Phase 4
Start date May 2, 2020
Completion date July 10, 2020

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