Labcorp announced the U.S. Food and Drug Administration (FDA) has granted Emergency Use Authorization (EUA) for its Mpox  PCR Test Home Collection Kit to aid in the diagnosis of infection with non-variola Orthopoxvirus, including the monkeypox virus that causes monkeypox, also known as mpox. The test is the first mpox at-home collection kit authorized by FDA and is available to physicians to order for patients 18 years of age or older who are suspected of mpox infection. Physicians can order a test through Labcorp's provider interface platform for patients they suspect may be infected with the virus.

Labcorp will send the test kit directly to patients for at-home collection. The kit includes detailed instructions for patients on correctly collecting a lesion swab, securing the sample in the provided collection tube, and preparing the package for return to an authorized laboratory for analysis. Testing of specimens collected using the test kit will employ PCR (polymerase chain reaction) technology and will be conducted in authorized laboratories designated by Labcorp and certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA) to meet the requirements for performing high-complexity testing criteria for the detection of non-variola Orthopoxvirus DNA.

Results are electronically delivered to the prescribing physician and made available to the patient in Labcorp's patient portal at patient.labcorp.com. The company also aims to make the test available on its Labcorp OnDemand platform. The authorization comes amid reported increases in mpox cases in the United States.

According to the Centers for Disease Control and Prevention (CDC), there have been 511 mpox cases reported in 2024 through March 16, compared to fewer than 300 cases reported by late March 2023. Since the onset of the national 2022-2023 mpox virus outbreak, part of a larger global outbreak of human mpox caused by the West African clade of the monkeypox virus, the CDC notes more than 32,000 cases and 58 deaths have been reported nationally. This product has not been FDA cleared or approved, but has been authorized for emergency use by FDA under an EUA.

 This product has been authorized only for the collection and maintenance of lesion swab specimens as an aid in detection of nucleic acid from non-variola Orthopoxvirus, including monkeypox virus, not for any other viruses or pathogens. The emergency use of this product is only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of infection with the monkeypox virus, including in vitro diagnostics that detect and/or diagnose infection with non-variola Orthopoxvirus, under Section 564(b)(1) of the Federal Food, Drug, and Cosmetic Act, 21 U.S.C. § 360bbb-3(b)(1), unless the declaration is terminated or authorization is revoked sooner.