What question did this study set out to answer?

Evaluate case-control likelihood ratio evidence from large-scale population sequencing to classify BRCA1 and BRCA2 variants of uncertain significance for breast cancer risk.

May 24, 2025Nature CommunicationsOpen Access

Analysis of more than 400,000 women provides case-control evidence for BRCA1 and BRCA2 variant classification

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Authors

MZMaria ZantiCyprus Institute of Neurology and Genetics DODenise G O'MahonyOslo University Hospital MPMichael T. ParsonsQIMR Berghofer Medical Research Institute

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Implication

Case-control study demonstrates robust BRCA1 and BRCA2 variant classification in over 398,000 women, indicating case-control evidence can reclassify hundreds of variants of uncertain significance.

Key Points

Evaluate case-control likelihood ratio evidence from large-scale population sequencing to classify BRCA1 and BRCA2 variants of uncertain significance for breast cancer risk.
Analyzed germline sequencing data of BRCA1 and BRCA2 from 96,691 female breast cancer cases and 302,116 controls across the BRIDGES, CARRIERS, and UK Biobank studies.
Calculated case-control likelihood ratios across 11,207 identified variants to measure concordance with ClinVar benign and pathogenic variant assertions.
Case-control likelihood ratio evidence achieved 99.1% sensitivity and 95.3% specificity for BRCA1, and 93.3% sensitivity and 86.6% specificity for BRCA2 compared to ClinVar assertions.
Generated classification evidence for 787 unclassified variants, identifying 579 with strong or moderate benign evidence and 10 with strong pathogenic evidence sufficient to modify clinical classification.

Cite This Study

Zanti et al. (2025) studied this question.

synapsesocial.com/papers/6aa91e57b9dc4ad643f89b18 https://doi.org/10.1038/s41467-025-59979-6

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Implication

Case-control study demonstrates robust BRCA1 and BRCA2 variant classification in over 398,000 women, indicating case-control evidence can reclassify hundreds of variants of uncertain significance.

Analysis of more than 400,000 women provides case-control evidence for BRCA1 and BRCA2 variant classification

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Implication

Key Points

Cite This Study

Analysis of more than 400,000 women provides case-control evidence for BRCA1 and BRCA2 variant classification

Discussion

Member takes

Implication

Key Points

Cite This Study

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