Evaluating concordance of preimplantation genetic testing-whole-genome sequencing with genetic findings in live-born children
Year: 2026
Type: article
Abstract: Objective To clinically assess concordance between preimplantation genetic testing-whole-genome sequencing (PGT-WGS) and whole-genome sequencing results from corresponding live-born children, including evaluation of genome-wide variants, targeted gene panels, de novo variants, and genetic risk scores. Design Patients underwent a standard in vitro fertilization workflow with PGT-WGS. After pregnancy or live birth, patients were contacted for consent to participate in this study. This small study included 10 biopsy-child pairs. Deoxyribonucleic acid (DNA) samples were collected from children, and whole-genome sequencing was performed accordingly. Genetic findings from PGT-WGS were compared with the child's whole-genome sequencing results. For de novo variant assessment (3 biopsy-child pairs), parental samples were also requested. Subjects Clinical trophectoderm biopsy samples, corresponding live-born children, and parental DNA samples. Intervention (for RCT) or Exposure (for observational studies) N/A Main Outcome Measures Variant concordance across the whole genome and within designated gene panels; concordance of clinically relevant variants and de novo variants; concordance of functionally significant single-nucleotide polymorphisms (SNPs), including HLA and APOE ; and resulting genetic risk scores. Results Analysis of single-nucleotide variants (SNVs) and insertions/deletions (indels) identified an average of 3,562,534 variants genome-wide and 2,656 variants within the 1,200-gene panel per embryo-child pair, yielding a sensitivity of 97.6% and a precision of 98.4% on genome and 98.4% and 98.7% respectively, on monogenic panels. Traditional PGT approaches do not enable prospective screening for de novo variants. In this study, all 42 confirmed de novo variants detected in live-born children were also identified in the corresponding PGT-WGS results. High concordance (>99%) was observed on HLA, APOE, as well as SNPs used for genetic risk scores. Conclusion This study provides a small clinical study comparing PGT-WGS results with whole-genome sequencing findings in live-born children. Preimplantation genetic testing-whole-genome sequencing, offered using an opt-in panel of approximately 1,200 genes, demonstrated high sensitivity and precision and enabled direct interrogation of the trophectoderm genome. It has the feasibility to identify de novo variants.
Source: F&S Reports
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,000
OpenAlex ID: W7203661176