Evidence map›Paper›PMID 15071761›Full record

ArticleEuropean journal of clinical pharmacology2004

Intravenous paracetamol (propacetamol) pharmacokinetics in term and preterm neonates.

Karel Allegaert, Brian J Anderson, Gunnar Naulaers, Jan de Hoon, Rene Verbesselt, Anne Debeer, Hugo Devlieger, Dick Tibboel

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European journal of clinical pharmacology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 113 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Trial
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  5. Trial
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  7. Trial
  8. Review
  9. Article
  10. Review
  11. Observational
  12. Article
  13. Clinical pharmacology of paracetamol in neonates: a review.Current therapeutic research, clinical and experimental · 2015
    Review
  14. Prediction of glucuronidated drug clearance in pediatrics (≤5 years): An allometric approach.European journal of drug metabolism and pharmacokinetics · 2015
    Article
  15. Pain management in newborns.Clinics in perinatology · 2014
    Review
  16. Review
  17. Article
  18. Article
  19. Haemodynamics of intravenous paracetamol in neonates.European journal of clinical pharmacology · 2010
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 3 countries.

Karel AllegaertNeonatal Intensive Care Unit, Department of Paediatrics, University Hospital, Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. karel.allegaert@uz.kuleuven.ac.be
Brian J Anderson
Gunnar Naulaers
Jan de Hoon
Rene Verbesselt
Anne Debeer
Hugo Devlieger
Dick Tibboel
KU Leuven · BEErasmus MC - Sophia Children’s Hospital · NLUniversity of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to describe propacetamol pharmacokinetics in term and preterm neonates to suggest dosing regimens. METHODS. A population pharmacokinetic analysis of paracetamol (acetaminophen) time-concentration profiles in 48 neonates was undertaken using non-linear mixed-effects models. Neonates were given either single (n=30) or multiple doses (n=18) of propacetamol infusion over 15 min. Neonates had a median postnatal age of 1 day (range, 1-76 days). Median post-conceptual age (PCA) was 35 weeks (range, 27-42 weeks), and median weight was 2.4 kg (range, 0.51-4 kg).

resultsThe population volume of distribution estimate and between-subject variability (%) for a one-compartment model with zero-order input and first-order elimination was 70.4 l (30.7%)/70 kg. Clearance increased from 2.85 l/70 kg, CV 40.7% at 27 weeks PCA to reach 7.05 l/h per 70 kg by 42 weeks PCA (standardised to a 70-kg person using allometric "1/4-power" models). Between-occasion variability for volume of distribution and clearance were 17.4% and 26%, respectively.

conclusionsA mean paracetamol steady-state target concentration above 10 mg/l at trough can be achieved using a loading dose of 40 mg/kg and maintenance doses of 20 mg/kg 6 h in 28-week PCA neonates, 25 mg/kg 6 h at 32 weeks, 30 mg/kg 6 h at 36 weeks and 20 mg/kg 4 h at term (propacetamol doses). Since the role of the oxidative enzyme CYP2E1 and production of the hepatotoxic metabolite N-acetyl-p-benzoquinone-imine still is unknown in premature neonates, lower doses scaled by age-related clearance and centred on a daily dose of 60 mg/kg per day in a child of 6-8 years with a clearance of 0.25 l/h per kg (12.5 l/h per 70 kg) may be more appropriate.

Indexed as

Infusions, IntravenousAcetaminophenAge FactorsAnalgesics, Non-NarcoticBody WeightClinical Trials as TopicDrug Administration ScheduleHumansInfant, NewbornInfant, Premature, DiseasesMetabolic Clearance RateTime FactorsAcetaminophenAnalgesics, Non-Narcoticpropacetamol

Identifiers

PMID15071761
OpenAlexW2045838010

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.