Evidence map›Paper›PMID 27659521›Full record

SynthesisOncotarget2016

BRCA mutations and survival in breast cancer: an updated systematic review and meta-analysis.

Yaning Zhu, Jian Wu, Chengwan Zhang, Suan Sun, Jian Zhang, Wenjie Liu, Jian Huang, Zhihong Zhang

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed.

  1. Article
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  4. Review
  5. Review
  6. Review
  7. Article
  8. Observational
  9. Article
  10. Article
  11. Matched-pair long-term survival analysis of male and female patients with breast cancer: a population-based study.Translational breast cancer research : a journal focusing on translational research in breast cancer · 2024
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. International journal of molecular sciences · 2022
    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

8 authors.

Yaning ZhuDepartment of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Jian WuDepartment of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Chengwan ZhangThe Central Laboratory of Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Suan SunDepartment of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Jian ZhangDepartment of Breast Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Wenjie LiuDepartment of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Jian HuangDepartment of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province, China.
Zhihong ZhangDepartment of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BRCA mutations occur frequently in breast cancer (BC), but their prognostic impact on outcomes of BC has not been determined. We conducted an updated meta-analysis on the association between BRCA mutations and survival in patients with BC. Electronic databases were searched. The primary outcome measure was overall survival (OS), and the secondary outcome measures included breast cancer-specific survival (BCSS) and event-free survival (EFS). Hazard ratios (HR) and 95% confidence interval (CI) were abstracted and pooled with random-effect modeling. Data from 297, 402 patients with BC were pooled from 34 studies. The median prevalence rates of BRCA1 and BRCA2 mutations were 14.5% and 8.3%, respectively. BRCA mutations were associated with worse OS (BRCA1: HR = 1.69, 95% CI, 1.35 to 2.12, p < 0.001; BRCA2: HR = 1.50, 95% CI 1.03 to 2.19, p = 0.034). However, this did not translate into poor BCSS (BRCA1: HR = 1.14, 95% CI, 0.81 to 1.16, p = 0.448; BRCA2: HR = 1.16; 95% CI 0.82 to 1.66, p = 0.401) or EFS (BRCA1: HR = 1.10, 95% CI, 0.86 to 1.41, p = 0.438; BRCA2: HR= 1.09; 95% CI 0.81 to 1.47, p = 0.558). Several studies analyzed BRCA1 and BRCA2 mutations together and found no impact on OS (HR = 1.21; 95% CI, 0.73 to 2.00, p = 0.454) or EFS (HR = 0.94; 95% CI, 0.60 to 1.48, p = 0.787). BRCA1 and BRCA2 mutations were associated with poor OS in patients with BC, but had no significant impact on BCSS or EFS. An improved survival was observed in BC patients who had BRCA1 mutation and treated with endocrinotherapy. The results may have therapeutic and prognostic implications important for BRCA mutation carriers with BC.

Indexed as

Genes, BRCA1Genes, BRCA2MutationAdultAgedBreast NeoplasmsFemaleHumansMiddle AgedPublication BiasBRCA mutationbreast cancermeta-analysissurvivalsystematic review

Identifiers

PMID27659521
PMCPMC5342539

What OpenQuestion holds

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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.