Scholarlink

<p>Variants of Uncertain Significance (VUS) in genetic testing for hereditary diseases burden patients and clinicians, yet clinical data that could reduce VUS are underutilized due to a lack of scalable strategies. We assessed whether a machine learning approach using genotype and phenotype data could improve variant classification and reduce VUS. In this cohort study of a multi-step machine learning approach, patient data from test requisition forms were used to distinguish patients with molecular diagnoses from controls (“patient score”). A generative Bayesian model then used patient scores and variant classifications to infer variant pathogenicity (“variant score”). The study included 3.5&#xa0;million patients referred for clinical genetic testing across various conditions. Primary outcomes were model- and gene-level discrimination, classification performance, probabilistic calibration, and concordance with orthogonal pathogenicity measures. Integration into a semi-quantitative classification framework was based on posterior pathogenicity probabilities matching PPV ≥ 0.99/NPV ≥ 0.95 thresholds, followed by expert review. We generated 1,334 clinical variant models (CVMs); 595 showed high performance in both machine learning steps (AUROCpatient ≥ 0.8 and AUROCvariant ≥ 0.8) on held-out data. High-confidence predictions from these CVMs provided evidence for 5,362 VUS observed in 200,174 patients, representing 23.4% of all VUS observations in these genes. In 17 frequently tested genes, CVMs reclassified over 1,000 unique VUS, reducing VUS report rates by 9–49% per condition. In conclusion, a scalable machine learning approach using underutilized clinical data improved variant classification and reduced VUS.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Harnessing genotype and phenotype data for population-scale variant classification using large language models and bayesian inference

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年4月23日

查看全文
  • Toby R. Manders,
  • Christopher A. Tan,
  • Yuya Kobayashi,
  • Alexander Wahl,
  • Carlos Araya,
  • Alexandre Colavin,
  • Flavia M. Facio,
  • Hillery Metz,
  • Jason Reuter,
  • Laure Frésard,
  • Samskruthi R. Padigepati,
  • David A. Stafford,
  • Robert L. Nussbaum,
  • Keith Nykamp

摘要

Variants of Uncertain Significance (VUS) in genetic testing for hereditary diseases burden patients and clinicians, yet clinical data that could reduce VUS are underutilized due to a lack of scalable strategies. We assessed whether a machine learning approach using genotype and phenotype data could improve variant classification and reduce VUS. In this cohort study of a multi-step machine learning approach, patient data from test requisition forms were used to distinguish patients with molecular diagnoses from controls (“patient score”). A generative Bayesian model then used patient scores and variant classifications to infer variant pathogenicity (“variant score”). The study included 3.5 million patients referred for clinical genetic testing across various conditions. Primary outcomes were model- and gene-level discrimination, classification performance, probabilistic calibration, and concordance with orthogonal pathogenicity measures. Integration into a semi-quantitative classification framework was based on posterior pathogenicity probabilities matching PPV ≥ 0.99/NPV ≥ 0.95 thresholds, followed by expert review. We generated 1,334 clinical variant models (CVMs); 595 showed high performance in both machine learning steps (AUROCpatient ≥ 0.8 and AUROCvariant ≥ 0.8) on held-out data. High-confidence predictions from these CVMs provided evidence for 5,362 VUS observed in 200,174 patients, representing 23.4% of all VUS observations in these genes. In 17 frequently tested genes, CVMs reclassified over 1,000 unique VUS, reducing VUS report rates by 9–49% per condition. In conclusion, a scalable machine learning approach using underutilized clinical data improved variant classification and reduced VUS.