Medically Ill Hospitalized Patients for COVID-19 THrombosis Extended ProphyLaxis With Rivaroxaban ThErapy: The MICHELLE Trial

  • STATUS
    Recruiting
  • days left to enroll
    80
  • participants needed
    320
  • sponsor
    Science Valley Research Institute
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Updated on 27 January 2021
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Summary

The Michelle trial is expected to provide high-quality evidence around the role of extended thromboprophylaxis in COVID-19 and will help guide medical decisions in clinical practice.

Description

Background: The devastating COVID-19 pandemic is associated with a high prothrombotic state. It is unclear if the coagulation abnormalities occur because of the direct effect of SARS-CoV 2 or indirectly by the cytokine storm and endothelial damage, or by a combination of mechanisms. There is a clear indication of in-hospital pharmacological thromboprophylaxis for every patient with COVID-19 after bleed risk assessment. However, there is much debate regarding the best dosage regimen, and there is no consensus on the role of extended VTE prophylaxis.

Design: This study aims to evaluate the safety and efficacy of rivaroxaban 10 mg OD for 35+/-4 days versus no intervention after hospital discharge in COVID-19 patients who were at increased risk for VTE and have received standard parenteral VTE prophylaxis during hospitalization, with a composite efficacy endpoint of symptomatic VTE, VTE-related death, and/or VTE detected by mandatory bilateral lower limbs venous duplex scan and computed tomography pulmonary angiogram on day 35+/-4 post-hospital discharge.

Summary: The Michelle trial is expected to provide high-quality evidence around the role of extended thromboprophylaxis in COVID-19 and will help guide medical decisions in clinical practice.

Details
Condition Venous Thromboembolism, Thromboembolism, COVID19
Treatment Rivaroxaban 10 MG
Clinical Study IdentifierNCT04662684
SponsorScience Valley Research Institute
Last Modified on27 January 2021

Eligibility

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Inclusion Criteria

Is your age between 18 yrs and 90 yrs?
Gender: Male or Female
Do you have any of these conditions: Thromboembolism or COVID19 or Venous Thromboembolism?
Do you have any of these conditions: COVID19 or Venous Thromboembolism or Thromboembolism?
Do you have any of these conditions: Venous Thromboembolism or Thromboembolism or COVID19?
Male and nonpregnant female patients 18 years of age or older
Positive reverse-transcriptase-polymerase-chain-reaction (RT-PCR) assay for SARS-CoV-2 in a respiratory tract sample
Pneumonia confirmed by chest imaging
Additional risk factors for VTE, as indicated by a total modified International Medical Prevention Registry on Venous Thromboembolism (IMPROVE) risk score of 4 or higher
Have received thromboprophylaxis with low-molecular-weight heparin, fondaparinux, or unfractionated heparin during the index hospitalization

Exclusion Criteria

Age < 18 years
Refusal of informed consent
Physician decision that involvement in the trial was not in the patient's best interest
Patients with a medical indication for anticoagulation therapy at the time of inclusion (for example, diagnosis of venous thromboembolism, atrial fibrillation, mechanical valve prosthesis)
Platelets < 50,000 / mm3
Patients with contraindications to anticoagulation (active bleeding, liver failure, blood dyscrasia, or prohibitive hemorrhagic risk in the investigator's assessment)
Active cancer (excluding non-melanoma skin cancer) defined as cancer, not in remission or requiring active chemotherapy or adjunctive therapies such as immunotherapy or radiotherapy
Use of strong inhibitors of cytochrome P450 (CYP) 3A4 and/or glycoprotein P (P-gp) (eg protease inhibitors, ketoconazole, Itraconazole) and/or use of P-gp and strong inducers of CYP3A4 (how but not limiting rifampicin/rifampicin, rifabutin, rifapentine, phenytoin, phenobarbital, carbamazepine or St. John's wort)
Creatinine clearance <30 ml / min
Pregnancy or breastfeeding
known HIV infection
Presence of one of the following uncontrolled or unstable cardiovascular diseases: stroke, ECG confirmed acute ischemia or myocardial infarction, and/or clinically significant dysrhythmia
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