Evidence map›Paper›PMID 32052378›Full record

ArticleClinical pharmacokinetics2020

Integration of Placental Transfer in a Fetal-Maternal Physiologically Based Pharmacokinetic Model to Characterize Acetaminophen Exposure and Metabolic Clearance in the Fetus.

Paola Mian, Karel Allegaert, Sigrid Conings, Pieter Annaert, Dick Tibboel, Marc Pfister, Kristel van Calsteren, John N van den Anker, André Dallmann

Open access · hybridAbstract read
In one paragraph

Article in Clinical pharmacokinetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Beyond the Headlines: Examining the Evidence Around Acetaminophen and Autism Risk.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2026
    Article
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  7. Exposure to Acetaminophen (Paracetamol) during Pregnancy and Childhood Cancer: A Population-Based Cohort Study in Taiwan.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
    Article
  8. Article
  9. NAPQI is absent in the mouse brain after sub-hepatotoxic and hepatotoxic doses of acetaminophen.Toxicological sciences : an official journal of the Society of Toxicology · 2025
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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

9 authors at 6 institutions in 4 countries.

Paola MianIntensive Care and Department of Paediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands. Paola.Mian@mst.nl.ORCID 0000-0002-3551-1201
Karel AllegaertDepartment of Development and Regeneration, KU Leuven, Leuven, Belgium.
Sigrid ConingsDepartment of Development and Regeneration, KU Leuven, Leuven, Belgium.
Pieter AnnaertDrug Delivery and Disposition Lab, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
Dick TibboelIntensive Care and Department of Paediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
Marc PfisterPediatric Pharmacology, Pharmacometrics Research Center and University Children's Hospital Basel (UKBB), Basel, Switzerland.
Kristel van CalsterenDepartment of Development and Regeneration, KU Leuven, Leuven, Belgium.
John N van den AnkerIntensive Care and Department of Paediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
André DallmannPediatric Pharmacology, Pharmacometrics Research Center and University Children's Hospital Basel (UKBB), Basel, Switzerland.
KU Leuven · BEUniversity Children’s Hospital Basel · CHChildren's National · USErasmus MC · NLErasmus MC - Sophia Children’s Hospital · NLMedisch Spectrum Twente · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveAlthough acetaminophen is frequently used during pregnancy, little is known about fetal acetaminophen pharmacokinetics. Acetaminophen safety evaluation has typically focused on hepatotoxicity, while other events (fetal ductal closure/constriction) are also relevant. We aimed to develop a fetal-maternal physiologically based pharmacokinetic (PBPK) model (f-m PBPK) to quantitatively predict placental acetaminophen transfer, characterize fetal acetaminophen exposure, and quantify the contributions of specific clearance pathways in the term fetus.

methodsAn acetaminophen pregnancy PBPK model was extended with a compartment representing the fetal liver, which included maturation of relevant enzymes. Different approaches to describe placental transfer were evaluated (ex vivo cotyledon perfusion experiments, placental transfer prediction based on Caco-2 cell permeability or physicochemical properties [MoBi

resultsTested approaches to predict placental transfer showed comparable performance, although the ex vivo approach showed highest prediction accuracy. Acetaminophen exposure in maternal venous blood was similar to fetal venous umbilical cord blood. Prediction of fetal acetaminophen clearance indicated that the median molar dose fraction converted to acetaminophen-sulphate and N-acetyl-p-benzoquinone imine was 0.8% and 0.06%, respectively. The predicted mean acetaminophen concentration in the arterial umbilical cord blood was 3.6 mg/L.

conclusionThe median dose fraction of acetaminophen converted to its metabolites in the term fetus was predicted. The various placental transfer approaches supported the development of a generic f-m PBPK model incorporating in vivo placental drug transfer. The predicted arterial umbilical cord acetaminophen concentration was far below the suggested postnatal threshold (24.47 mg/L) for ductal closure.

Indexed as

Maternal-Fetal ExchangePlacentaAcetaminophenCaco-2 CellsFemaleFetusHumansModels, BiologicalPregnancyAcetaminophen

Identifiers

PMID32052378
PMCPMC7329787
OpenAlexW3006051572

What OpenQuestion holds

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LicenceCC BY-NC
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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.