Pediatric DTC Genetic Testing for Adult-Onset Inherited Cancer Risk: The Perspectives of High-Risk Parents

Public Health Genomics. 2025;28(1):102-112. doi: 10.1159/000543913. Epub 2025 Feb 5.

Abstract

Introduction: Despite guidelines discouraging pediatric genetic testing for adult-onset hereditary cancer risk, direct-to-consumer (DTC) companies make them available to children's parents. This study examined the perspectives of high-risk parents toward such testing.

Methods: Interviews were conducted with N = 30 parents (children ages 10-21) carrying pathogenic variants in cancer-causing genes available for detection through DTC tests. Interviews were analyzed inductively using a standardized methodology to identify prominent themes.

Results: Three major themes were identified: (1) high-risk parents' motivations for pediatric genetic testing, (2) risks and benefits of pediatric genetic testing, and (3) parental involvement of children in decision-making about testing. Although only n = 5 parents (17% of the sample) reported that their children were genetically tested (n = 3 through a DTC company, n = 2 through a clinician), 73% endorsed pediatric genetic testing for general health reasons. Many parents (53%) expressed a preference for clinical testing over DTC testing. While parents recognized the limits of DTC testing, some (40%) expressed that it should remain available to high-risk parents for the purpose of identifying cancer risks in their children. Children's maturity (70%), interest in testing (77%), and anticipated responses to testing (43%) were cited as important decisional considerations.

Conclusion: Few high-risk parents utilized DTC testing for their children. Parents generally preferred the prospect of clinical testing, but some believed DTC testing should be an option available to families. Clinicians should discuss the risks and benefits of pediatric genetic testing, including DTC, with high-risk parents. This may facilitate more informed decision-making that minimizes potential harms.

Keywords: Cancer; Children; Direct-to-consumer genetic testing; Parents.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adolescent
  • Adult
  • Child
  • Decision Making
  • Direct-To-Consumer Screening and Testing*
  • Female
  • Genetic Predisposition to Disease*
  • Genetic Testing*
  • Humans
  • Male
  • Middle Aged
  • Neoplasms* / diagnosis
  • Neoplasms* / genetics
  • Parents* / psychology
  • Young Adult