Evidence map›Paper›PMID 21669012›Full record

ArticleBMC cancer2011

Retrospective exploratory analysis of VEGF polymorphisms in the prediction of benefit from first-line FOLFIRI plus bevacizumab in metastatic colorectal cancer.

Fotios Loupakis, Annamaria Ruzzo, Lisa Salvatore, Chiara Cremolini, Gianluca Masi, Paolo Frumento, Marta Schirripa, Vincenzo Catalano, Nadia Galluccio, Emanuele Canestrari and 10 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
4.5field-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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Phase II study of bevacizumab in combination with sorafenib in recurrent glioblastoma (N0776): a north central cancer treatment group trial.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013
    Trial
  8. Review
  9. Article
  10. A Genetic Variant inFrontiers in oncology · 2022
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Cancers · 2018
    Article
  17. Review
  18. Role ofOncotarget · 2017
    Article
  19. KRAS genetic variant as a prognostic factor for recurrence in resectable non-small cell lung cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017
    Article
  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

20 authors at 7 institutions in 1 country.

Fotios LoupakisU,O, Oncologia Medica 2 Universitaria, Azienda Ospedaliero-Universitaria Pisana, Istituto Toscano Tumori and Dipartimento di Oncologia, dei Trapianti e delle Nuove Tecnologie in Medicina, Università di Pisa, Italy. fotiosloupakis@gmail.com
Annamaria Ruzzo
Lisa Salvatore
Chiara Cremolini
Gianluca Masi
Paolo Frumento
Marta Schirripa
Vincenzo Catalano
Nadia Galluccio
Emanuele Canestrari
Bruno Vincenzi
Daniele Santini
Katia Bencardino
Vincenzo Ricci
Mariangela Manzoni
Marco Danova
Giuseppe Tonini
Mauro Magnani
Alfredo Falcone
Francesco Graziano
University of Urbino · ITAzienda Ospedaliera Universitaria Pisana · ITUniversità Campus Bio-Medico · ITUniversity of Pisa · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITPoliclinico San Matteo Fondazione · ITScuola Superiore Sant'Anna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMolecular predictors of bevacizumab efficacy in colorectal cancer have not been identified yet. Specific VEGF polymorphisms may affect gene transcription and therefore indirectly influence the efficacy of bevacizumab.

methodsGenomic DNA of 111 consecutive metastatic colorectal cancer patients treated with first-line FOLFIRI plus bevacizumab was obtained from blood samples. VEGF -2578 C/A, -1498 C/T, + 405 C/G, + 936 C/T polymorphisms were analyzed by means of PCR-RFLP. DNA samples from 107 patients treated with FOLFIRI alone served as historical control group. The relation of VEGF polymorphisms with PFS, evaluated through Kaplan-Meier method and log-rank test, was the primary end-point. An interaction test with a Cox model has been performed in order to demonstrate the heterogeneity of the effect of VEGF -1498 C/T polymorphism between bevacizumab-and control group.

resultsIn the bevacizumab-group median PFS and OS of patients carrying VEGF -1498 C/C, C/T and T/T allelic variants were, respectively, 12.8, 10.5, 7.5 months (p = 0.0046, log-rank test) and 27.3, 20.5, 18.6 months (p = 0.038, log-rank test). VEGF -1498 T/T genotype was associated with shorter PFS (HR = 2.13, [1.41-5.10], p = 0.0027). In the control group no significant association of VEGF -1498 C/T allelic variants and PFS or OS was found. Interaction between VEGF -1498 C/T variants and treatment effect suggested that the relation of VEGF -1498 T/T genotype with shorter PFS was caused by the effect of bevacizumab (p = 0.011). Other investigated polymorphisms did not affect the outcome.

conclusionsThese data suggest a possible role for VEGF -1498 C/T variants in predicting the efficacy of bevacizumab in the up-front treatment of metastatic colorectal cancer patients. A molecular tool for selecting subjects candidate to benefit from the anti-VEGF could be important for clinical practice. The retrospective and exploratory design of the present study, coupled with the non-randomized nature of the comparison between treated and untreated patients, imply that these results should be considered as hypothesis generators. A prospective validating trial is currently ongoing.

Indexed as

AdenocarcinomaColorectal NeoplasmsPolymorphism, GeneticAgedAllelesAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBevacizumabCamptothecinFemaleFluorouracilGenotypeHumansLeucovorinAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsBevacizumabCamptothecinFluorouracilLeucovorinVascular Endothelial Growth Factors

Identifiers

PMID21669012
PMCPMC3125285
OpenAlexW2149254095

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.