Evidence map›Paper›PMID 34773566›Full record

ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2022

Consensus of experts from the Spanish Pharmacogenetics and Pharmacogenomics Society and the Spanish Society of Medical Oncology for the genotyping of DPYD in cancer patients who are candidates for treatment with fluoropyrimidines.

P García-Alfonso, M Saiz-Rodríguez, R Mondéjar, J Salazar, D Páez, A M Borobia, M J Safont, I García-García, R Colomer, X García-González and 3 more

Open access · hybridAbstract readConsensus Statement
In one paragraph

Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. SEOM-GEICAM-SOLTI clinical guidelines in advanced breast cancer (UPDATE 2025).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Guideline
  2. SEOM-GEMCAD-TTD clinical guidelines for the adjuvant treatment of colon cancer (2023).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Guideline
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  4. Observational
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  12. Differences inPharmaceuticals (Basel, Switzerland) · 2025
    Article
  13. Frontiers in pharmacology · 2025
    Article
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  17. Advances in laboratory medicine · 2024
    Article
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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

13 authors at 8 institutions in 1 country.

P García-AlfonsoMedical Oncology Department, Hospital General Universitario Gregorio Marañón, Sociedad Española de Oncología Médica (SEOM), C/Doctor Esquerdo, 46, 28007, Madrid, Spain. pgarcaalfonso@gmail.com.ORCID http://orcid.org/0000-0002-4373-9978
M Saiz-RodríguezResearch Unit, Fundación Burgos por la Investigación de la Salud (FBIS), Hospital Universitario de Burgos, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Burgos, Spain.ORCID http://orcid.org/0000-0002-1660-3135
R MondéjarMedical Oncology Service, Hospital Universitario de la Princesa, Sociedad Española de Oncología Médica (SEOM), Madrid, Spain.
J SalazarResearch Institute of Hospital de la Santa Creu I Sant Pau, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Barcelona, Spain.
D PáezMedical Oncology Department, Hospital de la Santa Creu I Sant Pau, Sociedad Española de Oncología Médica (SEOM), Barcelona, España.
A M BorobiaClinical Pharmacology Service, Hospital Universitario La Paz, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Madrid, Spain.ORCID http://orcid.org/0000-0002-8584-3263
M J SafontMedical Oncology Service, Consorcio Hospital General Universitario de Valencia, Universidad de Valencia, CIBERONC, Sociedad Española de Oncología Médica (SEOM), Valencia, Spain.
I García-GarcíaClinical Pharmacology Service, Hospital Universitario La Paz, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Madrid, Spain.
R ColomerMedical Oncology Service, Hospital Universitario de La Princesa y Cátedra de Medicina Personalizada de Precisión de la Universidad Autónoma de Madrid (UAM), Sociedad Española de Oncología Médica (SEOM), Madrid, Spain.
X García-GonzálezHospital Pharmacy Service, Hospital General Universitario Gregorio Marañón, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Madrid, Spain.
M J HerreroPharmacogenetics Platform, IIS La Fe-Hospital La Fe and Pharmacology Department, Universidad de Valencia, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Valencia, Spain.
L A López-FernándezHospital Pharmacy Service, Hospital General Universitario Gregorio Marañón, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), Madrid, Spain.
F Abad-SantosClinical Pharmacology Service, Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Sociedad Española de Farmacogenética y Farmacogenómica (SEFF), C/Diego de León, 62., 28006, Madrid, Spain. francisco.abad@salud.madrid.org.ORCID http://orcid.org/0000-0002-6519-8885
Hospital General Universitario Gregorio Marañón · ESHospital Universitario de La Princesa · ESHospital Universitario La Paz · ESHospital Universitario de Burgos · ESInstituto de Investigación Sanitaria La Fe · ESSociedad Española de Medicina Interna · ESSociedad Española de Oncología Médica · ESUniversitat de València · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

5-Fluorouracil (5-FU) and oral fluoropyrimidines, such as capecitabine, are widely used in the treatment of cancer, especially gastrointestinal tumors and breast cancer, but their administration can produce serious and even lethal toxicity. This toxicity is often related to the partial or complete deficiency of the dihydropyrimidine dehydrogenase (DPD) enzyme, which causes a reduction in clearance and a longer half-life of 5-FU. It is advisable to determine if a DPD deficiency exists before administering these drugs by genotyping DPYD gene polymorphisms. The objective of this consensus of experts, in which representatives from the Spanish Pharmacogenetics and Pharmacogenomics Society and the Spanish Society of Medical Oncology participated, is to establish clear recommendations for the implementation of genotype and/or phenotype testing for DPD deficiency in patients who are candidates to receive fluoropyrimidines. The genotyping of DPYD previous to treatment classifies individuals as normal, intermediate, or poor metabolizers. Normal metabolizers do not require changes in the initial dose, intermediate metabolizers should start treatment with fluoropyrimidines at doses reduced to 50%, and poor metabolizers are contraindicated for fluoropyrimidines.

Indexed as

Patient SelectionCapecitabineDihydrouracil Dehydrogenase (NADP)FluorouracilGenotyping TechniquesHumansNeoplasmsPolymorphism, Single NucleotideCapecitabineDihydrouracil Dehydrogenase (NADP)Fluorouracil5-fluorouracilCapecitabineDihydropyrimidine dehydrogenaseGenotypesPharmacogeneticsToxicity

Identifiers

PMID34773566
PMCPMC8885558
OpenAlexW3212998713

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.