Evidence map›Paper›PMID 21135055›Full record

Trial reportAnnals of oncology : official journal of the European Society for Medical Oncology2011

An aCGH classifier derived from BRCA1-mutated breast cancer and benefit of high-dose platinum-based chemotherapy in HER2-negative breast cancer patients.

M A Vollebergh, E H Lips, P M Nederlof, L F A Wessels, M K Schmidt, E H van Beers, S Cornelissen, M Holtkamp, F E Froklage, E G E de Vries and 8 more

Open access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Annals of oncology : official journal of the European Society for Medical Oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 3% 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

86 citing papers in PubMed, 2 syntheses or guidelines pooled it, 210 citations in OpenAlex.

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  5. Ovarian Cancer-SpecificClinical cancer research : an official journal of the American Association for Cancer Research · 2021
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26 more citing papers are in PubMed but not listed here.

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

18 authors at 4 institutions in 1 country.

M A VolleberghDivision of Molecular Biology; Division of Medical Oncology.
E H LipsDivision of Experimental Therapy.
P M NederlofDivision of Experimental Therapy; Division of Molecular Pathology.
L F A WesselsDepartment of Bioinformatics and Statistics, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam; Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Delft.
M K SchmidtDivision of Experimental Therapy; Department of Epidemiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam.
E H van BeersDivision of Experimental Therapy.
S CornelissenDivision of Experimental Therapy.
M HoltkampDivision of Medical Oncology.
F E FroklageDivision of Medical Oncology.
E G E de VriesDepartment of Medical Oncology, University Medical Center Groningen, University of Groningen, Groningen.
J G SchramaDivision of Medical Oncology.
J WesselingDepartment of Pathology.
M J van de VijverDepartment of Epidemiology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam; Department of Pathology, Academic Medical Center.
H van TinterenDepartment of Biometrics, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
M de BruinDivision of Molecular Biology.
M HauptmannDepartment of Bioinformatics and Statistics, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam.
S RodenhuisDivision of Medical Oncology.
S C LinnDivision of Molecular Biology; Division of Medical Oncology. Electronic address: s.linn@nki.nl.
The Netherlands Cancer Institute · NLAcademic Medical Center · NLDelft University of Technology · NLUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBreast cancer cells deficient for BRCA1 are hypersensitive to agents inducing DNA double-strand breaks (DSB), such as bifunctional alkylators and platinum agents. Earlier, we had developed a comparative genomic hybridisation (CGH) classifier based on BRCA1-mutated breast cancers. We hypothesised that this BRCA1-like(CGH) classifier could also detect loss of function of BRCA1 due to other causes besides mutations and, consequently, might predict sensitivity to DSB-inducing agents. PATIENTS AND

methodsWe evaluated this classifier in stage III breast cancer patients, who had been randomly assigned between adjuvant high-dose platinum-based (HD-PB) chemotherapy, a DSB-inducing regimen, and conventional anthracycline-based chemotherapy. Additionally, we assessed BRCA1 loss through mutation or promoter methylation and immunohistochemical basal-like status in the triple-negative subgroup (TN subgroup).

resultsWe observed greater benefit from HD-PB chemotherapy versus conventional chemotherapy among patients with BRCA1-like(CGH) tumours [41/230 = 18%, multivariate hazard ratio (HR) = 0.12, 95% confidence interval (CI) 0.04-0.43] compared with patients with non-BRCA1-like(CGH) tumours (189/230 = 82%, HR = 0.78, 95% CI 0.50-1.20), with a significant difference (test for interaction P = 0.006). Similar results were obtained for overall survival (P interaction = 0.04) and when analyses were restricted to the TN subgroup. Sixty-three percent (20/32) of assessable BRCA1-like(CGH) tumours harboured either a BRCA1 mutation (n = 8) or BRCA1 methylation (n = 12).

conclusionBRCA1 loss as assessed by CGH analysis can identify patients with substantially improved outcome after adjuvant DSB-inducing chemotherapy when compared with standard anthracycline-based chemotherapy in our series.

Indexed as

Comparative Genomic HybridizationAdultAntineoplastic Combined Chemotherapy ProtocolsBasal Cell CarcinomaBRCA1 ProteinBreast NeoplasmsCarboplatinCyclophosphamideDNA MethylationEpirubicinErb-b2 Receptor Tyrosine KinasesFemaleFluorouracilFollow-Up StudiesHumansImmunoenzyme TechniquesBRCA1 ProteinBRCA1 protein, humanCarboplatinCyclophosphamideEpirubicinErb-b2 Receptor Tyrosine KinasesFluorouracilReceptors, EstrogenReceptors, ProgesteroneThiotepa

Identifiers

PMID21135055
PMCPMC3121967
OpenAlexW2133258471

What OpenQuestion holds

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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.