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: Pharmacokinetics of Enoxaparin After Coronary Artery Bypass Graft Surgery

Pulmonary Embolism Clinical Trial

Official title:
Anti-Xa Concentrations With Continuous Intravenous Infusion and Subcutaneous Administration of Enoxaparin After Coronary Artery Bypass Grafting: Randomized Clinical Trial

Clinical Trial Summary

To evaluate the pharmacokinetics of thromboprophylactic doses of LMWH enoxaparin in postoperative CABG patients, drug is administered either as a continuous intravenous infusion (CIV) or subcutaneous bolus (SCB) once per 72h. Plasma anti-Xa values are measured 12-14 times during study period and concentration maximums calculated to enable comparison of anti-Xa values between administration routes.

Clinical Trial Description

This is a prospective, randomized, controlled trial. After informed consent, 80 elective on pump CABG patients with a clinical indication for post-operative thromboprophylaxis will be studied in the Tampere University Heart Hospital. Study has two independent parts with 40 patients in both. Results are reported separately from these two parts of the study. Firts part of the study: After written consent, 20+20 patients are randomized to receive enoxaparin either as continuous intravenous infusion (treatment group) or subcutaneous bolus injection (control group). Enoxaparin dose is 40mg/24h either CIV of SCB. Anti-Xa values are measured 12-14 times from blood samples to evaluate the anticoagulation effect of enoxaparin. Second part of the study: After written consent, 20+20 patients are randomized to receive enoxaparin either as continuous intravenous infusion (treatment group) or subcutaneous bolus injection (control group). Enoxaparin dose is 1mg/kg/24h in CIV group and 0,5mg/kg twice a day in SCB group. In this second part of the study with eleveted enoxaparin dosage, 4 additional blood samples will be taken and analysed by ROTEM to investigate the overall coagulation status of the patients before and after the initiation of enoxaparin. The study will consist of two independent parts. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02474212
Study type Interventional
Source Tampere University Hospital
Contact
Status Completed
Phase Phase 4
Start date May 2016
Completion date March 31, 2023
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