Withdraw AvertD Approval: Scientists

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Some 31 experts in genetics, addiction, psychiatry, public health, and medical device regulation are asking FDA to revoke its 1/2 approval of AutoGenomics’ AvertD, the first test to use DNA to assess whether individuals may have an increased risk of developing opioid use disorder (OUD). In a 4/4 letter, the experts say “Current scientific knowledge about OUD genetics is strong enough for us to state that AvertD does not predict genetic risk of OUD.”

The experts report that the company’s claim that the gene markers underlying AvertD can predict OUD was independently evaluated by geneticists who published their findings in a peer-reviewed journal. “This independent evaluation, using a methodology resembling the one used by AvertD’s sponsor, found that the algorithm used for AvertD fell into known pitfalls of genetic prediction that give the appearance of predicting genetic risk, without being a true measure of genetic risk,” the letter says. “With proper controls for ancestry, genetic predictors from the 15 variants used in AvertD did not predict risk of OUD any better than chance.”

The 31 experts say they were surprised that the agency approved AvertD despite opposition from geneticists, other experts, and its advisory committee. “Ironically,” they write, “FDA has touted its approval of AvertD as a step toward addressing the opioid crisis. We believe AvertD may make the opioid crisis worse by contributing to overprescribing to patients who falsely test negative.”

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