Patients with clinical indication for pharmacological thromboprophylaxis and slow low efficient daily dialysis (SLEDD).
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • Age over 18 years • Critically ill patients requiring intensive care • Indication for pharmacological thromboprophylaxis • Written informed consent obtained from the patient or his/her legal representative. • Indication for SLEDD, any of following: - AKI stage 3 of KDIGO (20): serum creatinine concentration of more than 354 umol/l or greater than 3 times the baseline creatinine level OR anuria (urine output of 100 ml/day) for more than 12 hours OR oliguria: =65 years) yes F.1.3.1 Number of subjects for this age range 30
Exclusion criteria
Exclusion criteria: • Other indications for anticoagulant therapy than thromboprophylaxis (including sodium citrate for CRRT) • Any long-term anticoagulant or antithrombotic medication, except for low-dose aspirin (<150 mg daily) • Treatment with tinzaparin or any other LMWH or heparin within 24 hours of study inclusion • Known heparin induced thrombocytopenia (HIT), or hypersensitivity to tinzaparin or any other heparin • Known pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To evaluate the pharmacokinetics of tinzaparin during SLEDD by comparing plasma anti-FXa levels when tinzaparin is administered into the inlet line of hemodialysis circuit after 5 minutes from the start of dialysis either as a single bolus or as a bolus and continuous infusion. The primary outcome measure will be plasma anti-FXa concentration at 4 hours from the onset of SLEDD;Secondary Objective: To evaluate the dialyzer circuit performance ;Primary end point(s): The primary outcome measure is plasma anti-FXa concentration at 4 hours from the onset of SLEDD.;Timepoint(s) of evaluation of this end point: at 4 hours from the onset of SLEDD. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): Blood samples - Routine blood test (i.e. blood counts, INR, renal parameters, creatinine, C reactive protein and bilirubin) - Anti-FXa - Frozen blood samples : Thrombin generation (CAT) AT 3, FIDD, F1 and F2, TAT, TFPI - At the end of the SLEDD dialysis visual clotting will be evaluated (clotting score) - During SLEDD following parameters will be registered: Transmembrane pressure Inlet pressure Outlet pressure - Total duration of SLEDD - Following adverse events will be registered and treated according to normal practice ;Timepoint(s) of evaluation of this end point: - Routine blood test before SLEDD treatment - Anti-FXa will be measured at 0, 4 (Tmax), 8 and 24 hours from the onset of the SLEDD - Frozen blood samples will be collected at 0, 4, 8 and 24 hours from the onset of the SLEDD Clinical events - At the end of the SLEDD dialysis visual clotting will be evaluated - During SLEDD following parameters will be registered at 1, 2, 4 and 8 hours: o Transmembrane pressure o Inlet pressure o Outlet pressure | — |
Countries
Finland
Contacts
Tampere university hospital