Evidence map›Paper›PMID 25690342›Full record

ArticlePharmaceutical research2015

Prediction of Drug Transfer into Milk Considering Breast Cancer Resistance Protein (BCRP)-Mediated Transport.

Naoki Ito, Kousei Ito, Yuki Ikebuchi, Yu Toyoda, Tappei Takada, Akihiro Hisaka, Akira Oka, Hiroshi Suzuki

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06088849 (Maternal Treatment With ACE-inhibitors and Breastfeeding), which is not on this map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.9field-weighted citation impact, top 13% 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.

NCT06088849 nacompletednot on this mapstarted 2021, after this paper: background citation

Maternal Treatment With ACE-inhibitors and Breastfeeding: a Mono-centric Study on the Exposure Through Breast Milk

TypeinterventionalSponsorUniversitaire Ziekenhuizen KU LeuvenRan2021 to 2023Enrolled20ConditionsBreast Feeding, Hypertension, Heart Failure, ProteinuriaArmsVenipuncture
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Transporters and drug secretion into human breast milk.Expert opinion on drug metabolism & toxicology · 2025
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Drugs in Lactation.Pharmaceutical research · 2018
    Review
  14. Article
  15. Article
  16. Article
  17. Article
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 1 country.

Naoki ItoDepartment of Pediatrics, the University of Tokyo Hospital, Faculty of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
Kousei Ito
Yuki Ikebuchi
Yu Toyoda
Tappei Takada
Akihiro Hisaka
Akira Oka
Hiroshi Suzuki
The University of Tokyo · JPChiba University · JPUniversity of Tokyo Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDrug transfer into milk is of concern due to the unnecessary exposure of infants to drugs. Proposed prediction methods for such transfer assume only passive drug diffusion across the mammary epithelium. This study reorganized data from the literature to assess the contribution of carrier-mediated transport to drug transfer into milk, and to improve the predictability thereof.

methodsMilk-to-plasma drug concentration ratios (M/Ps) in humans were exhaustively collected from the literature and converted into observed unbound concentration ratios (M/Punbound,obs). The ratios were also predicted based on passive diffusion across the mammary epithelium (M/Punbound,pred). An in vitro transport assay was performed for selected drugs in breast cancer resistance protein (BCRP)-expressing cell monolayers.

resultsM/Punbound,obs and M/Punbound,pred values were compared for 166 drugs. M/Punbound,obs values were 1.5 times or more higher than M/Punbound,pred values for as many as 13 out of 16 known BCRP substrates, reconfirming BCRP as the predominant transporter contributing to secretory transfer of drugs into milk. Predictability of M/P values for selected BCRP substrates and non-substrates was improved by considering in vitro-evaluated BCRP-mediated transport relative to passive diffusion alone.

conclusionsThe current analysis improved the predictability of drug transfer into milk, particularly for BCRP substrates, based on an exhaustive data overhaul followed by focused in vitro transport experimentation.

Indexed as

AlgorithmsAnimalsAntineoplastic AgentsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2BreastDiffusionDogsEpitheliumFemaleHumansHydrogen-Ion ConcentrationMadin Darby Canine Kidney CellsMilk, HumanNeoplasm ProteinsPharmaceutical PreparationsABCG2 protein, humanAntineoplastic AgentsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm ProteinsPharmaceutical Preparations

Identifiers

PMID25690342
OpenAlexW2027036921

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.