The Food and Drug Administration has issued an emergency-use authorization (EUA) for the first COVID-19 diagnostic test that can be completed at home without a prescription.
Authorization of the Ellume COVID-19 Home Test is “a major milestone in diagnostic testing for COVID-19,” FDA Commissioner Stephen M. Hahn, MD, said in a news release.
“By authorizing a test for over-the-counter use, the FDA allows it to be sold in places like drug stores, where a patient can buy it, swab their nose, run the test, and find out their results in as little as 20 minutes,” said Dr. Hahn.
The Ellume COVID-19 Home Test is a rapid antigen test that detects fragments of the SARS-CoV-2 virus from a nasal swab sample taken from anyone aged 2 years and older, including those not showing any symptoms.
In testing, the Ellume COVID-19 Home Test correctly identified 96% of positive samples and 100% of negative samples in individuals with symptoms.
In people without symptoms, the test correctly identified 91% of positive samples and 96% of negative samples, the FDA said.
The test includes a sterile nasal swab, a dropper, processing fluid, and a Bluetooth-connected analyzer for use with an app on the user’s smartphone. The sample is analyzed and results are automatically transmitted to the user’s smartphone.
“The Ellume COVID-19 home test’s core technology combines ultra-sensitive optics, electronics, and proprietary software to leverage best-in-class digital immunoassay technology with next-generation multi-quantum dot fluorescence technology,” the company said in a news release.
The mobile app requires individuals to input their ZIP code and date of birth, with optional fields including name and email address. The app automatically reports the results as appropriate to public health authorities to monitor disease prevalence.
Ellume expects to produce more than 3 million tests in January 2021. The company said the test will cost around $30.
FDA authorization of this first fully at-home nonprescription COVID-19 diagnostic test follows last month’s EUA for the first prescription COVID-19 test for home use, as reported this news organization.
Since the start of the pandemic, the FDA has authorized more than 225 diagnostic tests for COVID-19, including more than 25 tests that allow for home collection of samples, which are then sent to a lab for testing.
“As we continue to authorize additional tests for home use, we are helping expand Americans’ access to testing, reducing the burden on laboratories and test supplies, and giving Americans more testing options from the comfort and safety of their own homes,” Dr. Hahn said.
“This test, like other antigen tests, is less sensitive and less specific than typical molecular tests run in a lab,” said Jeffrey Shuren, MD, JD, director of FDA’s Center for Devices and Radiological Health, in the release. “However, the fact that it can be used completely at home and return results quickly means that it can play an important role in response to the pandemic.”
As with other antigen tests, a small percentage of positive and negative results from the Ellume test may be false. In patients without symptoms, positive results should be treated as presumptively positive until confirmed by another test as soon as possible, the FDA advised.
This is especially true if there are fewer infections in a particular community, as false-positive results can be more common when antigen tests are used in populations where there is a low prevalence of COVID-19, the agency said.
Because all tests can give false-negative and false-positive results, individuals with positive results should self-isolate and seek additional care from their health care provider.
Individuals who test negative and have symptoms of COVID-19 should follow up with their health care provider, as negative results don’t preclude an individual from SARS-CoV-2 infection.
A version of this article first appeared on Medscape.com.