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Stakeholder Perspectives on Overcoming Barriers to Cascade Testing in Lynch Syndrome: A Qualitative Study.


ABSTRACT: Cascade testing (i.e., genetic testing of family members of individuals with disease) among families affected by hereditary cancer disorders, such as Lynch syndrome, is suboptimal and thus represents a missed opportunity in cancer prevention. We aimed to fill a gap in the literature by exploring multilevel barriers and facilitators to the implementation of cascade testing for Lynch syndrome. We conducted semistructured, in-depth interviews guided by the Consolidated Framework for Implementation Research and the Integrated Behavioral Model among key stakeholders (n = 60): Patients with Lynch syndrome and relatives (n = 20), providers (n = 20), and administrators (n = 20). Transcripts were double-coded (20% sample) using template analysis in ATLAS.ti. Barriers identified included (i) low awareness about Lynch syndrome, (ii) psychosocial barriers, (iii) lack of provider follow-up, (iv) accessibility to genetic counseling, and (v) fear of discrimination. Facilitators included (i) motivation to engage in cascade testing and (ii) free genetic testing offered to relatives. Stakeholders also recommended strategies to overcome implementation barriers in the short-term (increasing education, preparing patients for communicating with relatives), medium-term (optimizing clinical workflow and staffing resources), and long-term (nationwide standardization). These findings indicate that modifiable, multilevel barriers to the implementation of cascade testing in Lynch syndrome are experienced across stakeholders. Understanding and targeting implementation barriers is imperative to achieving public health impact of precision health interventions such as cascade testing.

SUBMITTER: Srinivasan S 

PROVIDER: S-EPMC7718347 | biostudies-literature |

REPOSITORIES: biostudies-literature

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