Laboratory Equipment
Thu, 04/06/2017
by Seth Augenstein - Senior Science Writer - @SethAugenstein

The first authorization for genetic risk tests for disease was issued to 23andMe today, the U.S. Food and Drug Administration announced today.

The 10 conditions are all heavily determined by DNA variants – and the company has demonstrated the ability to relay the risk factors in consumer-friendly ways that have been backed by peer-reviewed science, the federal agency announced.

“Consumers can now have direct access to certain genetic risk information,” said Jeffrey Shuren, director of FDA’s Center for Device and Radiological Health. “But it is important that people understand that genetic risk is just one piece of the bigger puzzle, it does not mean they will or won’t ultimately develop a disease.”

“This is an important moment for people who want to know their genetic health risks and be more proactive about their health,” said Anny Wojcicki, the CEO and co-founder of 23andME. “The FDA has embraced innovation and has empowered individual by authorizing direct access to this information.”

The 10 conditions that can now be determined from the 500,000 genetic variants in a single saliva sample are: Parkinson’s disease, late-onset Alzheimer’s, celiac disease, alpha-1antitrypsin deficiency, early-onset primary dystonia, factor XI deficiency, Gaucher disease type 1, Glucose-6-phosphate dehydrogenase deficiency, hereditary hemochromatosis, and hereditary thrombophilia.

Excluded from the approvals are genetic tests that qualify as diagnostics, such as the BRCA mutation in breast cancer which can often lead to preventative mastectomies.

Ethical questions have surrounded the predictive power of DNA, as genetic risk factors have come to be better understood. A 2013 analysis in the journal Progress in Neurobiology found that more care needed to be taken to understand the risk factors present in genes, and specifically how the information should become actionable by both patients and doctors.

“The implications of these research findings go well beyond the laboratory,” the authors concluded.