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USA: Over 400 patients mistakenly told they may have cancer due to software glitch

Grail, a company that developed blood tests to detect cancer, mistakenly sent approximately 400 customers letters saying they might be positive for the disease, The New York Times has reported.

Grail's Galleri test uses blood to detect cancer signals shared by 50 types of cancers and is available only by prescription, according to the report. Grail said in a statement that one of its vendors sent hundreds of letters with incorrect test results due to a "software configuration issue." 

"No patient health information has been disclosed or breached due to this issue, and no patient harm or adverse events have been reported," Grail's statement said.

The issue was not caused by incorrect test results, according to the company. More than half of people who received the erroneous letter had not yet had their blood drawn for the test. PWNHealth said in a statement that the system it uses to send template messages to people had a "misconfiguration." 

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Source: Becker's Hospital Review, 4 June 2023


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