Evidence map›Paper›PMID 34200242›Full record

ReviewCancers2021

Systematic Review of Pharmacogenetic Factors That Influence High-Dose Methotrexate Pharmacokinetics in Pediatric Malignancies.

Zachary L Taylor, Jesper Vang, Elixabet Lopez-Lopez, Natanja Oosterom, Torben Mikkelsen, Laura B Ramsey

Open access · goldAbstract readReview
In one paragraph

Review in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 2% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Pharmacological assessment of drugs retained in the 1Naunyn-Schmiedeberg's archives of pharmacology · 2026
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  13. DHFR2 RNA directly regulates dihydrofolate reductase and its expression level impacts folate one carbon metabolism.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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  19. Association ofCurrent issues in molecular biology · 2024
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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

6 authors at 5 institutions in 4 countries.

Zachary L TaylorDepartment of Pharmacology and Systems Physiology, University of Cincinnati, Cincinnati, OH 45267, USA.
Jesper VangDepartment of Health Technology, Technical University of Denmark, 2800 Lyngby, Denmark.
Elixabet Lopez-LopezDepartment of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, 48940 Leioa, Spain.ORCID 0000-0002-5309-3031
Natanja OosteromPrincess Máxima Center for Pediatric Oncology, 3720 Utrecht, The Netherlands.
Torben MikkelsenDepartment of Pediatric Oncology, Aarhus University Hospital, 8200 Aarhus, Denmark.
Laura B RamseyDivision of Research in Patient Services, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.ORCID 0000-0001-6417-3961
Cincinnati Children's Hospital Medical Center · USAarhus University Hospital · DKPrincess Máxima Center · NLRigshospitalet · DKUniversity of the Basque Country · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methotrexate (MTX) is a mainstay therapeutic agent administered at high doses for the treatment of pediatric and adult malignancies, such as acute lymphoblastic leukemia, osteosarcoma, and lymphoma. Despite the vast evidence for clinical efficacy, high-dose MTX displays significant inter-individual pharmacokinetic variability. Delayed MTX clearance can lead to prolonged, elevated exposure, causing increased risks for nephrotoxicity, mucositis, seizures, and neutropenia. Numerous pharmacogenetic studies have investigated the effects of several genes and polymorphisms on MTX clearance in an attempt to better understand the pharmacokinetic variability and improve patient outcomes. To date, several genes and polymorphisms that affect MTX clearance have been identified. However, evidence for select genes have conflicting results or lack the necessary replication and validation needed to confirm their effects on MTX clearance. Therefore, we performed a systematic review to identify and then summarize the pharmacogenetic factors that influence high-dose MTX pharmacokinetics in pediatric malignancies. Using the PRISMA guidelines, we analyzed 58 articles and 24 different genes that were associated with transporter pharmacology or the folate transport pathway. We conclude that there is only one gene that reliably demonstrates an effect on MTX pharmacokinetics:

Indexed as

acute lymphoblastic leukemialymphomamethotrexateosteosarcomapediatricspharmacogeneticspharmacokinetics

Identifiers

PMID34200242
PMCPMC8201112
OpenAlexW3166538810

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.