Evidence map›Paper›PMID 26222057›Full record

Trial reportPloS one2015

Genome Wide Association Study for Predictors of Progression Free Survival in Patients on Capecitabine, Oxaliplatin, Bevacizumab and Cetuximab in First-Line Therapy of Metastatic Colorectal Cancer.

Jan Pander, Lieke van Huis-Tanja, Stefan Böhringer, Tahar van der Straaten, Hans Gelderblom, Cornelis Punt, Henk-Jan Guchelaar

Open access · goldAbstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
0.3field-weighted citation impact, top 37% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Genetic Variant Associated With Survival of Patients With Stage II-III Colon Cancer.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2020
    Pooled it
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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.

Jan PanderDepartment of Clinical Pharmacy & Toxicology, Leiden University Medical Center, The Netherlands; PO box 9600, 2300 RC Leiden, The Netherlands.
Lieke van Huis-TanjaDepartment of Clinical Oncology, Leiden University Medical Center, The Netherlands; PO box 9600, 2300 RC Leiden, The Netherlands.
Stefan BöhringerDepartment of Biostatistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands.
Tahar van der StraatenDepartment of Clinical Pharmacy & Toxicology, Leiden University Medical Center, The Netherlands; PO box 9600, 2300 RC Leiden, The Netherlands.
Hans GelderblomDepartment of Clinical Oncology, Leiden University Medical Center, The Netherlands; PO box 9600, 2300 RC Leiden, The Netherlands.
Cornelis PuntDepartment of Medical Oncology, Academic Medical Center Amsterdam, The Netherlands; PO Box 22660, 1100 DD Amsterdam, The Netherlands.
Henk-Jan GuchelaarDepartment of Clinical Pharmacy & Toxicology, Leiden University Medical Center, The Netherlands; PO box 9600, 2300 RC Leiden, The Netherlands.
Leiden University Medical Center · NLLeiden University · NLGGD Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDespite expanding options for systemic treatment, survival for metastatic colorectal cancer (mCRC) remains limited and individual response is difficult to predict. In search of pre-treatment predictors, pharmacogenetic research has mainly used a candidate gene approach. Genome wide association (GWA) studies offer the benefit of simultaneously analyzing a large number of SNPs, in both known and still unidentified functional regions. Using a GWA approach, we searched for genetic markers affecting progression free survival (PFS) in mCRC patients treated with first-line capecitabine, oxaliplatin and bevacizumab (CAPOX-B), with or without cetuximab. PATIENTS AND

methods755 patients were included in the CAIRO2-trial, a multicenter phase III trial, randomizing between first-line treatment with CAPOX-B versus CAPOX-B plus cetuximab. Germline DNA and complete clinical information was available from 553 patients and genome wide genotyping was performed, using Illumina's OmniExpress beadchip arrays, with 647,550 markers passing all quality checks. Another 2,202,473 markers were imputated by using HapMap2. Association with PFS was analysed using a Cox proportional hazards model.

resultsOne marker, rs885036, associated significantly with PFS (P = 2.17x10(-8)) showing opposite effects on PFS depending on treatment arm. The minor allele was associated with increased PFS in patients receiving cetuximab. A cluster of markers located on chromosome 8 associated with PFS, irrespective of treatment arm (P-values of 2.30x10(-7) to 1.04x10(-6)).

conclusionThis is the first GWA study to find SNPs affecting PFS in mCRC patients treated with CAPOX-B, either with or without cetuximab. Rs885036 is a potential predictive marker for cetuximab efficacy. These markers need to be validated in independent treatment cohorts.

Indexed as

Genome-Wide Association StudyPolymorphism, Single NucleotideAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBevacizumabCapecitabineCetuximabColorectal NeoplasmsDisease-Free SurvivalFemaleGenotyping TechniquesHumansMaleMiddle AgedBevacizumabCapecitabineCetuximabOrganoplatinum CompoundsOxaliplatin

Identifiers

PMID26222057
PMCPMC4519298
OpenAlexW2227813604

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.