Mainstream germline genetic testing in men with metastatic prostate cancer: design and protocol for a multicenter observational study

Michiel Vlaming, Eveline M.A. Bleiker, Inge M. van Oort, Lambertus A.L.M. Kiemeney, Margreet G.E.M. Ausems*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Background: In international guidelines, germline genetic testing is recommended for patients with metastatic prostate cancer. Before undergoing germline genetic testing, these patients should receive pre-test counseling. In the standard genetic care pathway, pre-test counseling is provided by a healthcare professional of a genetics department. Because the number of patients with metastatic prostate cancer is large, the capacity in the genetics departments might be insufficient. Therefore, we aim to implement so-called mainstream genetic testing in the Netherlands for patients with metastatic prostate cancer. In a mainstream genetic testing pathway, non-genetic healthcare professionals discuss and order germline genetic testing. In our DISCOVER study, we will assess the experiences among patients and non-genetic healthcare professionals with this new pathway. Methods: A multicenter prospective observational cohort study will be conducted in 15 hospitals, in different regions of the Netherlands. We developed an online training module on genetics in prostate cancer and the counseling of patients. After completion of this module, non-genetic healthcare professionals will provide pre-test counseling and order germline genetic testing in metastatic prostate cancer patients. Both non-genetic healthcare professionals and patients receive three questionnaires. We will determine the experience with mainstream genetic testing, based on satisfaction and acceptability. Patients with a pathogenic germline variant will also be interviewed. We will determine the efficacy of the mainstreaming pathway, based on time investment for non-genetic healthcare professionals and the prevalence of pathogenic germline variants. Discussion: This study is intended to be one of the largest studies on mainstream genetic testing in prostate cancer. The results of this study can improve the mainstream genetic testing pathway in patients with prostate cancer. Trial registration: The study is registered in the WHO’s International Clinical Trials Registry Platform (ICTRP) under number NL9617.

Original languageEnglish
Article number1365
Pages (from-to)1-9
Number of pages9
JournalBMC Cancer
Volume22
Issue number1
DOIs
Publication statusPublished - 30 Dec 2022

Keywords

  • Genetic counseling
  • Germline genetic testing
  • Mainstream genetic testing
  • Prostate cancer
  • Germ Cells/pathology
  • Prostatic Neoplasms/genetics
  • Prospective Studies
  • Genetic Testing
  • Humans
  • Male
  • Genetic Counseling/methods
  • Multicenter Studies as Topic
  • Germ-Line Mutation
  • Observational Studies as Topic

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