Evidence map›Paper›PMID 22045187›Full record

Trial reportBritish journal of cancer2011

Methylenetetrahydrofolate reductase genetic polymorphisms and toxicity to 5-FU-based chemoradiation in rectal cancer.

F Thomas, A A Motsinger-Reif, J M Hoskins, A Dvorak, S Roy, A Alyasiri, R J Myerson, J W Fleshman, B R Tan, H L McLeod

Open access · hybridAbstract readClinical Trial, Phase II
In one paragraph

Trial report in British journal of cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Article
  10. Pharmacogenomics of 5-fluorouracil in colorectal cancer: review and update.Cellular oncology (Dordrecht, Netherlands) · 2020
    Review
  11. Biomarkers in Colorectal Cancer: Current Research and Future Prospects.International journal of molecular sciences · 2020
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. 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

10 authors at 3 institutions in 1 country.

F ThomasUNC Institute for Pharmacogenomics and Individualized Therapy, University of North Carolina, Chapel Hill, NC, USA. thomas.fabienne@claudiusregaud.fr
A A Motsinger-Reif
J M Hoskins
A Dvorak
S Roy
A Alyasiri
R J Myerson
J W Fleshman
B R Tan
H L McLeod
University of North Carolina at Chapel Hill · USWashington University in St. Louis · USNorth Carolina State University · US

Funding

Washington University Center for Cellular ImagingP30CA091842 · NCI · WASHINGTON UNIVERSITY · PI TIMOTHY J. EBERLEIN · 2001 to 2026
$128.0M
POPULATION GENETICS AND DRUG METABOLISMU01GM063340 · NIGMS · WASHINGTON UNIVERSITY · PI MCLEOD, HOWARD L · 2001 to 2009
$17.4M
Biostatistics Training in the Omics EraT32GM081057 · NIGMS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI MUSE, SPENCER V. · 2007 to 2019
$2.5M
NCI NIH HHS P30 CA091842NIGMS NIH HHS T32 GM081057NIGMS NIH HHS T32GM081057NIGMS NIH HHS U01 GM063340NIGMS NIH HHS U01 GM63340
6 · The paper itself

Abstract

backgroundThere is a large degree of variation in tumour response and host toxicities associated with neoadjuvant chemoradiation for rectal cancer patients. We performed a complimentary pharmacogenetic study to investigate germline polymorphisms of genes involved in 5-fluorouracil (5-FU) and irinotecan pathways and their potential association with clinical outcomes and toxicities from neoadjuvant chemoradiation in patients with rectal cancer treated in a prospective genotype-directed study.

methodsThe germline DNA of 131 patients was genotyped for 10 variants in TYMS, MTHFR, DPYD, UGT1A1, ABCC1 and SLCO1B1 genes. Ninety-six patients were treated with 5-FU/radiotherapy (RT) and 35 received 5-FU/RT/irinotecan. Relationships between genetic variants and adverse events, tumour response, overall and disease-free survivals were assessed.

resultsMTHFR 1298A>C and MTHFR diplotypes (for 677C>T and 1298A>C) were associated with chemoradiation-related toxicity when 5-FU was used alone. MTHFR haplotypes (677C-1298C) and diplotypes (CA-TA and TA-TA) showed, respectively, a protective and a negative effect on the incidence of severe diarrhoea or mucositis. No association was observed between genetic markers and drug response.

conclusionMTHFR polymorphisms can potentially predict toxicity in patients treated with 5-FU as a single chemotherapeutic drug.

Indexed as

AdolescentAdultAgedAged, 80 and overAntimetabolites, AntineoplasticAntineoplastic Combined Chemotherapy ProtocolsCamptothecinChemoradiotherapy, AdjuvantDisease-Free SurvivalFluorouracilGenotypeHumansIrinotecanMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedPharmacogeneticsAntimetabolites, AntineoplasticCamptothecinFluorouracilIrinotecanMethylenetetrahydrofolate Reductase (NADPH2)Radiation-Sensitizing Agents

Identifiers

PMID22045187
PMCPMC3242600
OpenAlexW2001603104

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.