Portland, Oregon 97239


The risk of developing a blood clot occurs in up to 60% of all critical care patients. Many times enoxaparin (or Lovenox) is given to patients who are at a higher risk of developing clots in their legs or lungs. There are two standard doses of enoxaparin that are recommended by the drug companies. These two doses have never been directly compared in trauma, general, and vascular surgery patients. The purposes of this study are: 1. to compare the development of blood clots in patients receiving 30mg twice daily of enoxaparin compared to patients receiving 40mg once daily of enoxaparin. 2. to determine if there is higher risk of bleeding complications in patients receiving 30mg twice daily of enoxaparin compared to patients receiving 40mg once daily. Patients enrolled into the study will be randomized to receive enoxaparin, 30mg twice daily or enoxaparin, 40mg once daily. Patients will then be monitored for signs and symptoms of blood clots. At the time of discharge (or before, if medically indicated), an ultrasound test will be performed to look for blood clots in the patient's legs. The investigators will compare incidence of blood clots formed between the 2 groups of patients to determine if one dose of enoxaparin relates to a lower rate of blood clots in critically ill patients. The investigators will also compare the incidence of bleeding complications between the 2 groups.


Inclusion Criteria: - Admitted patients requiring prophylactic dosing of enoxaparin (Lovenox) - Admitted to the trauma or surgical service - Age greater than 15 years Exclusion Criteria: - Unable to obtain consent from patient or authorized representative - Presence of intracranial hemorrhage - Receiving therapeutic dose of enoxaparin (Lovenox) - Receiving other forms of anticoagulation - Presence of renal failure requiring non-standard dosing regimen



Primary Contact:

Principal Investigator
Martin A Schreiber, MD
Oregon Health and Science University

Samantha Underwood, MS
Phone: 503 494-8481
Email: underwos@ohsu.edu

Backup Contact:

Email: macek@ohsu.edu
Amanda Toyooka, BA

Location Contact:

Portland, Oregon 97239
United States

Samantha Underwood, MS
Phone: 503-494-8481
Email: underwos@ohsu.edu

Site Status: Recruiting

Data Source: ClinicalTrials.gov

Date Processed: February 04, 2019

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