Eight of Ten People With Cancer Risk Genes Don't Know It: Study

by Colleen Fleiss on  September 23, 2018 at 11:37 PM Cancer News
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More than 80% of those who carry an identifiable genetic risk for breast, ovarian, prostate, and pancreatic cancer don't know it despite frequent interaction with the healthcare system, found genomic screening results.

The findings were published in the journal JAMA Network Open.
Eight of Ten People With Cancer Risk Genes Don't Know It: Study
Eight of Ten People With Cancer Risk Genes Don't Know It: Study

"As a colleague said, it usually takes a tragedy for people to get tested," said Michael Murray, professor of genetics at Yale School of Medicine and senior author of the study conducted at Geisinger Medical Center in Danville, Pennsylvania. "Our reliance on a documented personal or family history as a trigger to offer testing is not working. Hopefully, one day we can change that with effective DNA-based screening for everyone."

The mean age of subjects in the study was 60. Two hundred and sixty-seven of those screened possessed a BRCA risk variant, yet only 18% of them were aware they possessed this risk factor for cancer prior to being informed by the study.

In the small group of BRCA-positive patients who had died before the study's conclusion, 47.8% of them had a BRCA-associated cancer.

"Once risk is identified, we can apply proven tools for early diagnosis and prevention, and we believe that the 31% difference in cancer incidence in these two groups is a window into an opportunity to decrease cancer and cancer deaths through genomic screening approaches," Murray said.

Source: Eurekalert

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