ArticleHereditary cancer in clinical practice2026
BRCAShare: a video-based message can increase sharing of familial genetic test results.
Article in Hereditary cancer in clinical practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundGenetic testing for known familial pathogenic or likely pathogenic germline variants in cancer susceptibility genes is central to identifying relatives at heightened risk for cancer. However, current data suggest that uptake of this practice referred to as "cascade testing" remains suboptimal. Research demonstrates that healthcare providers can alleviate barriers to cascade testing by providing informational resources to facilitate patient-mediated sharing of their genetic test results with their at-risk relatives.
methodsWe recruited 103 individuals with a pathogenic or likely pathogenic variant in BRCA1or BRCA2 (BRCA1/2). Participants were randomized to receive a family communication guide with or without a 2-minute video (BRCAShare) that describes the concept of a relative's recent diagnosis of a harmful variant in BRCA1/2, meant to facilitate sharing of results with relatives. All participants were given surveys to assess reactions to and impact of BRCAShare across three domains: (1) participants' sharing of genetic information and intent to share genetic information; (2) perceived susceptibility to and seriousness of BRCA1/2 cancer related risks, benefits, or barriers to intrafamilial sharing of results and cascade testing; (3) the impact of family dynamic on sharing of genetic information.
resultsThe group given access to the BRCAShare video (guide + video) had significantly higher odds of reporting an intent to share and actual sharing with other family members compared to those who did not receive BRCAShare (guide only). Perceptions of cancer risk did not change significantly after viewing BRCAShare, however participants demonstrated strong understanding of risks and benefits of genetic testing at baseline. There was not a significant association between family dynamics and more intent to share.
conclusionsOur research suggests that this video message is a useful method for facilitating family sharing of BRCA1/2 results.
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