Polygenic hazard score to guide screening for aggressive prostate cancer: development and validation in large scale cohorts

Male Aging Biomedical and clinical sciences Outcome Assessment IMPACT Cohort Studies PSA Outcome Assessment, Health Care 2.1 Biological and endogenous factors Psychology Aetiology European Continental Ancestry Group/genetics Age of Onset Early Detection of Cancer Cancer risk OUTCOMES Prostate cancer OVERDIAGNOSIS Prostate Cancer Prostatic Neoplasms/blood Single Nucleotide Middle Aged Polymorphism, Single Nucleotide/genetics STATISTICS ddc: 3. Good health Public Health and Health Services Medicine TRIAL Kallikreins /dk/atira/pure/core/keywords/centre_for_surgical_research Single Nucleotide/genetics Life Sciences & Biomedicine Urologic Diseases SUSCEPTIBILITY LOCI Genotype Oncology and Carcinogenesis Clinical Sciences European Continental Ancestry Group Prostate-Specific Antigen/analysis 610 General & Internal Polymorphism, Single Nucleotide Risk Assessment Disease-Free Survival White People Outcome Assessment (Health Care) Medicine, General & Internal AGE Predictive Value of Tests General & Internal Medicine 616 Genetics Journal Article BREAST-CANCER Humans Kallikreins/analysis Genetic Testing name=Centre for Surgical Research Polymorphism Aged Science & Technology Biomedical and Clinical Sciences RISK PREDICTION Prevention screening Research Health sciences Prostatic Neoplasms prediction /dk/atira/pure/core/keywords/centre_for_surgical_research; name=Centre for Surgical Research Prostate-Specific Antigen ta3122 PREVENTION PRACTICAL Consortium* Survival Analysis Health Care Good Health and Well Being age Early Detection of Cancer/methods genetic
DOI: 10.1136/bmj.j5757 Publication Date: 2018-01-11T00:00:55Z
ABSTRACT
<h3>Abstract</h3> <h3>Objectives</h3> To develop and validate a genetic tool to predict age of onset aggressive prostate cancer (PCa) guide decisions who screen at what age. <h3>Design</h3> Analysis genotype, PCa status, select single nucleotide polymorphisms (SNPs) associated with diagnosis. These were incorporated into survival analysis estimate their effects on diagnosis (that is, not eligible for surveillance according National Comprehensive Cancer Network guidelines; any Gleason score ≥7, stage T3-T4, PSA (prostate specific antigen) concentration ≥10 ng/L, nodal metastasis, distant metastasis). The resulting polygenic hazard is an assessment individual risk. final model was applied independent dataset containing genotype screening data. calculated these men test prediction free from PCa. <h3>Setting</h3> Multiple institutions that members international PRACTICAL consortium. <h3>Participants</h3> All consortium participants European ancestry known age, quality assured custom (iCOGS) array development comprised 31 747 men; the validation 6411 men. <h3>Main outcome measures</h3> Prediction in set. <h3>Results</h3> In set, 54 highly significant predictor (z=11.2, P&lt;10<sup>−16</sup>). When set high scores (&gt;98th centile) compared those average (30th-70th centile), ratio 2.9 (95% confidence interval 2.4 3.4). Inclusion family history combined did improve (P=0.59), performance remained when accounted for. Additionally, positive predictive value increased increasing score. <h3>Conclusions</h3> Polygenic can be used personalised risk estimates
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