Thromboprophylaxis in Critically Ill Patients

February 20, 2007 updated by: Medical University of Vienna

Thromboprophylaxis in Critically Ill Patients: a Prospective, Randomized Study Comparing Anti-Xa Activities Following Subcutaneous Administration of 5000 IU and 7500 IU Dalteparin

Intensive care patients are at high risk to develop deep venous thrombosis and pulmonary embolism. Despite anticoagulation with heparin 7% of ICU patients suffer from this serious complication. Optimal regimens for prevention of VTE have been established in medical patients only and are not known for ICU patients.

It was therefore the aim of this study to compare the bioavailability of a low molecular weight heparin in ICU patients and in medical patients. Furthermore, we looked wether a 50% dose increase resulted in better bioavailability of this drug.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

Background: The optimal dose regimen of low molecular weight heparins (LMWH) for thromboprophylaxis in critically ill patients is unknown.

Objectives: We performed a prospective, randomized study to determine anti-Xa activities following subcutaneous administration of 5000 IU or 7500 IU dalteparin for thromboprophylaxis in ICU patients compared with medical patients receiving the standard dose of 5000 IU.

Patients and Methods: Twenty-five ICU patients received 7500 IU (group 1) and 29 ICU patients received 5000 IU dalteparin subcutaneously (group 2) for thromboprophylaxis. Twenty-nine medical patients receiving 5000 IU dalteparin served as control group (group 3).

Study Type

Interventional

Enrollment

90

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Austria
      • Vienna, Austria, 1090
        • Medical University of Vienna

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Requirement for prophylactic anticoagulation, patient age ³19 years, creatinine clearance within normal range, prothrombin time >30% and thrombocyte counts >100 G/l.

Exclusion Criteria:

  • Estimated time of admission less than 24 hours, full anticoagulation, renal failure, history of heparin-induced thrombocytopenia, hereditary or acquired coagulation disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Area under the curve of measured anti-Xa activities between baseline and 12 hours (AUC-anti-Xa0-12).

Secondary Outcome Measures

Outcome Measure
Peak anti-Xa activities at any time (C-max anti-Xa)
Time of peak anti-Xa-activities (t-max anti-Xa).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Medical University of Vienna

Investigators

  • Principal Investigator: Ute Priglinger, MD, Medical University of Vienna

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2003

Study Completion

April 1, 2005

Study Registration Dates

First Submitted

February 20, 2007

First Submitted That Met QC Criteria

February 20, 2007

First Posted (Estimate)

February 21, 2007

Study Record Updates

Last Update Posted (Estimate)

February 21, 2007

Last Update Submitted That Met QC Criteria

February 20, 2007

Last Verified

February 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 008/2003

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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