Evidence map›Paper›PMID 20865407›Full record

ArticleAnalytical and bioanalytical chemistry2010

A new ultrafast and high-throughput mass spectrometric approach for the therapeutic drug monitoring of the multi-targeted anti-folate pemetrexed in plasma from lung cancer patients.

Roland J W Meesters, Robin Cornelissen, Rob J van Klaveren, Robert de Jonge, Ethan den Boer, Jan Lindemans, Theo M Luider

Open access · hybridAbstract readValidation Study
In one paragraph

Article in Analytical and bioanalytical chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

5 citing papers in PubMed, 29 citations in OpenAlex.

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  4. Review
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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

7 authors at 3 institutions in 1 country.

Roland J W MeestersDepartment of Neurology, Laboratory of Neuro-Oncology and Clinical & Cancer Proteomics, University Medical Center Rotterdam (ErasmusMC), Dr. Molewaterplein 50, Room Ee-1981, 3015 GE Rotterdam, The Netherlands. r.meesters@erasmusmc.nl
Robin Cornelissen
Rob J van Klaveren
Robert de Jonge
Ethan den Boer
Jan Lindemans
Theo M Luider
Erasmus University Rotterdam · NLErasmus MC · NLErasmus MC Cancer Institute · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An analytical assay has been developed and validated for ultrafast and high-throughput mass spectrometric determination of pemetrexed concentrations in plasma using matrix assisted laser desorption/ionization-triple quadrupole-tandem mass spectrometry. Patient plasma samples spiked with the internal standard methotrexate were measured by multiple reaction monitoring. The detection limit was 0.4 fmol/μL, lower limit of quantification was 0.9 fmol/μL, and upper limit of quantification was 60 fmol/μL, respectively. Overall observed pemetrexed concentrations in patient samples ranged between 8.7 (1.4) and 142.7 (20.3) pmol/μL (SD). The newly developed mass spectrometric assay is applicable for (routine) therapeutic drug monitoring of pemetrexed concentrations in plasma from non-small cell lung cancer patients.

Indexed as

Antimetabolites, AntineoplasticCarcinoma, Non-Small-Cell LungDrug MonitoringGlutamatesGuanineHumansLung NeoplasmsPemetrexedSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTandem Mass SpectrometryAntimetabolites, AntineoplasticGlutamatesGuaninePemetrexed

Identifiers

PMID20865407
PMCPMC2990004
OpenAlexW2101965937

What OpenQuestion holds

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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.