Effective prevention of blood clots in critically ill patients - part 2

ISRCTN ISRCTN91570009
DOI https://doi.org/10.1186/ISRCTN91570009
EudraCT/CTIS number 2010-022034-88
Secondary identifying numbers EudraCT-number: 2010-022034-88
Submission date
25/11/2010
Registration date
14/03/2011
Last edited
28/04/2015
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Not provided at time of registration

Contact information

Prof Palle Toft
Scientific

Department of Anaesthesia and Intensive Care
Odense University Hospital
Sdr. Boulevard 29
Odense
DK 5000
Denmark

Email palle.toft@ouh.regionsyddanmark.dk

Study information

Study designProspective randomised double-blinded controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in the web format, please use the contact details below to request a patient information sheet
Scientific titleEnoxaparin - effective dosage for intensive care patients: a double-blinded, randomised clinical trial - part 2
Study hypothesisInadequate dosage of enoxaparin may be a possible explanation for the high failure rate of thromboembolic prophylaxis in intensive care unit (ICU) patients. The administration of higher doses of enoxaparin may give better anti-factor Xa levels in ICU patients and may thereby confer a greater degree of protection against venous thromboembolism.

The first part of our study supported the earlier finding that 40 mg enoxaparin subcutaneously once daily was insufficient for the prevention of venous thromboembolism. The study also pointed to inadequate dose and not the route of administration or disease severity, as the possible explanation for the low anti-Xa activity measured after enoxaparin administration in intensive care patients. These findings require further investigation.
Ethics approval(s)Local medical ethics committee (Den Videnskabsetisk Komite for Vejle og Fyn), 19/10/2010, project-ID: S-20100089
ConditionVenous thromboembolism
InterventionPatients will be randomly assigned to four groups by sequentially numbered sealed envelopes to receive one of the following subcutaneous doses of enoxaparin (Clexane®): 40 mg x1, 30mg x2 , 40mg x2 or 1mg/kg x1 for a period of 72 hours. Patients receiving 40 mg (the standard thromboprophylactic dose of enoxaparin) will act as the control group, while patients receiving 30mg x2, 40mg x2 , and 1mg/kg x1 are considered intervention groups. The total duration of treatment and follow-up will be 72 hours.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Enoxaparin
Primary outcome measurePeak anti-factor Xa levels (peak = 4 hours post-enoxaparin administration). Levels of anti-factor Xa activity will be determined using a validated chromogenic assay kit (COAMATIC Heparin, Chromogenix, Instrumentation Laboratory Company, Lexington, USA) with the substrate S-2732, and the apparatus (STA-R Evolution, Diagnostica Stago, Asnieres, France).
Secondary outcome measures1. Antithrombin (AT)
2. Fibrinogen
3. Platelets
4. D-dimer

Measured immediately before, and at 4, 12, 16 and 24 hours after the administration of enoxaparin.
Overall study start date01/12/2010
Overall study end date01/12/2011

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants80 patients
Participant inclusion criteria1. Consecutive patients admitted to the ICU
2. Aged over 18 years, either sex
3. Minimum stay of greater than 24 hours
Participant exclusion criteria1. Patients weighing less than 50 kg or greater than 90 kg
2. Bleeding diathesis
3. In need of an operation within the timeframe of the study
4. Pregnant
5. Requiring continuous veno-venous haemofiltration
Recruitment start date01/12/2010
Recruitment end date01/12/2011

Locations

Countries of recruitment

  • Denmark

Study participating centre

Odense University Hospital
Odense
DK 5000
Denmark

Sponsor information

Odense University Hospital (Denmark)
University/education

Department of Anaesthesia and Intensive Care
Odense University Hospital
Sdr. Boulevard 29
Odense
DK 5000
Denmark

Email ode.v.sekretariatet@ouh.regionsyddanmark.dk
Website http://www.ouh.dk/wm259883
ROR logo "ROR" https://ror.org/00ey0ed83

Funders

Funder type

Research council

The Danish Society of Anaesthesiology and Intensive Medicines Research Initiative (Denmark)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 19/04/2013 Yes No