Neonates, Paracetamol intravenous, Pharmakokinetics, Pharmacodynamics
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Neonates (in- and outborn) with a gestational age of 24-42 weeks; 2. Admission within the first 24 hours of life; 3. Indwelling arterial catheter; 4. Painful procedures within the first week of life; 5. Informed consent of the parents or legal guardian.
Exclusion criteria
Exclusion criteria: 1. Major congenital anomalies; 2. Intraventriculair haemorrhage > grade 2; 3. Neuromuscular blockers; 4. Absence of an indwelling catheter; 5. Use of morphine, midazolam at start of the study; If patients received more than one loading dose of morphine or midazolam prior to the study or in need of maintenance of any painkiller during the study, they are excluded from participation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pharmacokinetic properties of Acetaminophen in neonates: Safety and Efficacy Profile: Determine optimal loading dose of Acetaminophen in different age-subgroups. 1. Safety outcome parameters are: A. Acetaminophen serum levels; B. Acetaminophen metabolite levels in urine samples; C. Renal function; D. Hepatotoxicity (determine NAPQ1levels as indicator). 2. Pharmacodynamic properties of Acetaminophen in neonates: Comfortneo score and PIPP as pain assessment tools used in the different dose regimens of acetaminophen. | — |
Secondary
| Measure | Time frame |
|---|---|
| Registration and/or drug interaction: 1. Influence of drugs metabolised by cytochrome P-450 on serum levels of acetaminophen: indomethacin; 2. Influence of acetaminophen on indomethacin-treatment of PDA closure; 3. Influence of acetaminophen on bilirubin glucuronidation. | — |