Alinity m SARS-CoV-2 Assay | Abbott Molecular (2024)

INTENDED USE


The Alinity m SARS-CoV-2 assay is a real-time reverse transcriptase (RT) polymerase chain reaction (PCR) test intended for the qualitative detectionof nucleic acid from SARS-CoV-2 in mid-turbinate nasal, anterior nasal, nasopharyngeal (NP) and oropharyngeal (OP) swabs, and bronchoalveolarlavage (BAL) specimens collected from individuals suspected of COVID-19 by their healthcare provider (HCP), as well as mid-turbinate nasal, anteriornasal, NP and OP swabs collected from any individual, including individuals without symptoms or other reasons to suspect COVID-19 infection. Testingof non-pooled specimens is limited to laboratories certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA), 42 U.S.C.§263a,that meet requirements to perform moderate or high complexity tests.

This test is also for the qualitative detection of nucleic acid from the SARS-CoV-2 in pooled samples containing up to 5 individual upper respiratoryspecimens (i.e., mid-turbinate nasal, anterior nasal, NP, and OP swabs) that are collected by an HCP using individual vials containing transport media.Testing of pooled specimens is limited to laboratories certified under CLIA, 42 U.S.C §263a, that meet requirements to perform high complexity tests.Results are for the identification of SARS-CoV-2 RNA. The SARS-CoV-2 RNA is generally detectable in respiratory specimens during the acute phase ofinfection. Positive results are indicative of the presence of SARS-CoV-2 RNA; clinical correlation with patient history and other diagnostic information isnecessary to determine patient infection status. Positive results do not rule out bacterial infection or co-infection with other viruses. The agent detectedmay not be the definite cause of disease. Laboratories within the United States and its territories are required to report all results to the appropriatepublic health authorities.

Negative results do not preclude SARS-CoV-2 infection and should not be used as the sole basis for patient management decisions. Negative resultsmust be combined with clinical observations, patient history, and epidemiological information. Negative results from pooled testing should not be treatedas definitive. If a patient’s clinical signs and symptoms are inconsistent with a negative result and if results are necessary for patient management, thenthe patient should be considered for individual testing. Specimens included in pools with a positive result must be tested individually prior to reporting aresult. Specimens with low viral loads may not be detected in sample pools due to the decreased sensitivity of pooled testing.

The Alinity m SARS-CoV-2 assay is intended for use by qualified and trained laboratory personnel specifically instructed and trained in the techniquesof real-time PCR and in vitro diagnostic procedures. The Alinity m SARS-CoV-2 assay is only for use under the Food and Drug Administration’sEmergency Use Authorization.

LIMITATIONS OF THE PROCEDURE

For use under an Emergency Use Authorization only.

  • This assay is for in vitro diagnostic use under FDA Emergency Use Authorization only.
  • Use of the Alinity m SARS-CoV-2 assay is limited to personnel who have been trained in the procedures of a molecular diagnostic assay and theAlinity m System.
  • Laboratories are required to report all results to the appropriate public health authorities.
  • The instrument and assay procedures reduce the risk of contamination by amplification product. However, nucleic acid contamination from thepositive controls or specimens must be controlled by good laboratory practices and careful adherence to the procedures specified in the packageinsert.
  • Optimal performance of this test requires appropriate specimen collection, storage, and transport to the test site (refer to theSPECIMENCOLLECTION, STORAGE, AND TRANSPORT TO THE TEST SITEsection of the package insert).
  • Use of Pierceable Caps without the removal of swabs has only been validated using the swabs provided in the Abbott multi-Collect SpecimenCollection Kit and Abbott Universal Collection Kit.
  • Detection of SARS-CoV-2 RNA may be affected by sample collection methods, patient factors (eg, presence of symptoms), and/or stage ofinfection.
  • False-negative results may arise from degradation of the viral RNA during storage and transport of the specimens.
  • The impacts of vaccines, antiviral therapeutics, antibiotics, chemotherapeutic or immunosuppressant drugs have not been evaluated.
  • As with any molecular test, mutations within the target regions of Alinity m SARS-CoV-2 assay could affect primer and/or probe binding resulting infailure to detect the presence of virus.
  • The clinical performance has not been established with all circulating variants but is anticipated to be reflective of the prevalent variants incirculation at the time and location of the clinical evaluation. Performance at the time of testing may vary depending on the variants circulating,including newly emerging strains of SARS-CoV-2 and their prevalence, which change over time.
  • Due to inherent differences between technologies, it is recommended that, prior to switching from one technology to the next, users performcomparison studies in their laboratory to qualify technology differences. One hundred percent agreement between the results should not beexpected due to aforementioned differences between technologies. Users should follow their own specific policies/procedures.
  • The Alinity m SARS-CoV-2 assay was validated with nasopharyngeal swabs. Mid-turbinate nasal, anterior nasal (self-collected under healthcareprovider (HCP) supervision or HCP-collected) and oropharyngeal swab specimens as well as bronchoalveolar lavage specimens are alsoconsidered acceptable specimen types, but performance has not been established.
  • Results should be interpreted by a trained professional in conjunction with the patient’s history and clinical signs and symptoms, andepidemiological risk factors.
  • Negative results do not preclude infection with the SARS-CoV-2 virus and should not be the sole basis of a patient treatment/management orpublic health decision. Follow up testing should be performed according to the current CDC recommendations.
  • Samples should only be pooled when testing demand exceeds laboratory capacity and/or when testing reagents are in short supply.
  • Use of the Alinity m SARS-CoV-2 assay in a general asymptomatic screening population is intended to be used as part of an infection control plan,that may include additional preventative measures, such as a predefined serial testing plan or directed testing of high-risk individuals. Negativeresults should be considered presumptive and do not preclude current or future infection obtained through community transmission or otherexposures. Negative results must be considered in the context of an individual’s recent exposures, history, and presence of clinical signs andsymptoms consistent with COVID-19.
  • Asymptomatic individuals infected with COVID-19 may not shed enough virus to reach the limit of detection of the test, giving a false negative result.
  • Specimens with low viral loads may not be detected in sample pools due to the decreased sensitivity of pooled testing.
  • Sample pooling has only been validated using nasopharyngeal swab specimens.

Rx Only

This assay is only for in vitro diagnostic use under the FDA Emergency Use Authorization.

  • This product has not been FDA cleared or approved, but has been authorized for emergency use by FDA under an Emergency Use Authorization (EUA) for use by laboratoriescertified under the Clinical Improvement Amendments of 1988 (CLIA), 42 U.S.C.§263a, that meet requirements to perform moderate or high complexity tests;
  • This product has been authorized only for the detection of nucleic acid from SARS-CoV-2, not for any other viruses or pathogens; and
  • The emergency use of this product is only authorized for the duration of the declaration that circ*mstances exist justifying the authorization of emergency use of in vitro diagnostics under Section 564(b)(1) of the Act, 21 U.S.C. § 360bbb-3(b)(1), unless the declaration is terminated or authorization revoked sooner.
  • The Alinity m SARS-CoV-2 assay is run on the Alinity m system. The Alinity m system has been modified since authorization of the Alinity m SARS-CoV-2 assay by FDA. The system modification in relation to the Alinity m SARS-CoV-2 assay has been submitted and has not yet been reviewed by FDA. Testing has verified that the change is acceptable for use with the Alinity m SARS-CoV-2 assay. There is no change to the authorized test's performance characteristics.
ABBOTT ALINITYmSARS-COV-2 ASSAY SPECIFICATIONS1-4
TechnologyQualitative Multiplex RT-PCR
Assay Run Time< 115 min time to first results (12 results), 12 more results 16 min thereafter (assumption 100% efficiency)
Probe DesignSingle Stranded Linear Probe
Target RegionDual Target, RdRp and N-genes
Specimen TypesNasal, nasopharyngeal (NP) and oropharyngeal (OP) swabs, and bronchoalveolar lavage (BAL) specimens collected from individuals suspected of COVID-19 by their healthcare provider (HCP), as well as nasal, NP and OP swabs collected from any individual, including individuals without symptoms or other reasons to suspect COVID-19 infection. Pooled samples containing up to 5 individual upper respiratory specimens (i.e., nasal, NP, and OP swabs) that are collected by an HCP
ResultCycle number/not detected
Minimum Sample VolumeDepending on tube type between 0.8 mL and 1.4 mL
ControlsOne negative and one positive control
Internal ControlArmored RNA (Pumpkin), added to each specimen and control
Throughput300 samples in ~8 hours; up to 1080 samples in 24 hours

1. Alinity m SARS-CoV-2 AMP kit Package Insert (PI): 53-608191/R11.
2. Alinity m SARS-CoV-2 Control kit PI: 53-608192/R3.
3. Alinity m Operations Manual: 54-605001/R12.
4. Abbott Data on File

Below are links to CDC website on:

• Information for Laboratories:https://www.cdc.gov/coronavirus/2019-nCoV/lab/guidelines-clinical-specimens.html

• Collecting, Handling and Testing Clinical Specimens:https://www.cdc.gov/coronavirus/2019-nCoV/lab/guidelines-clinical-specimens.html

Technical Brief - SARS-CoV-2 Variant Detection

Contact Us

Alinity m SARS-CoV-2 Assay | Abbott Molecular (2024)

FAQs

What does a molecular test for SARS-CoV-2 detect? ›

Molecular diagnostic tests work by: Determining whether the SARS-CoV-2 virus is actively infecting a person. Creating millions of copies of small segments of the SARS-CoV-2 virus, if it is present in the patient's sample, amplifying the signal. Detecting those millions of copies on specialized machines.

What is the total number and mass of SARS-CoV-2 virions? ›

Although each infected person carries an estimated 1 billion to 100 billion virions during peak infection, their total mass is no more than 0.1 mg. This curiously implies that all SARS-CoV-2 virions currently in all human hosts have a mass of between 100 g and 10 kg.

What is nucleic acid testing for SARS-CoV-2? ›

Nucleic acid amplification tests (NAATs) are highly sensitive and highly specific tests that detect one or more viral ribonucleic acid (RNA) genes. PCR tests are the most common type of NAAT used for COVID-19 testing. Viral RNA may stay in a person's body for up to 90 days after they test positive.

What is the difference between molecular test and at home test? ›

At-home COVID-19 antigen tests are less likely to detect the SARS-CoV-2 virus than molecular tests, such as polymerase chain reaction (PCR) tests and other nucleic acid amplification tests (NAATs), which detect genetic material called RNA from the virus.

What is molecular testing used for? ›

A laboratory method that uses a sample of tissue, blood, or other body fluid to check for certain genes, proteins, or other molecules that may be a sign of a disease or condition, such as cancer.

What does SARS-CoV-2 stand? ›

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stands for severe acute respiratory syndrome coronavirus 2. It is a virus that causes respiratory illness in humans. It passed from animals to humans in a mutated form and was first reported in December 2019 in an outbreak occurring in Wuhan, China.

What is the most abundant protein in SARS-CoV-2? ›

SARS-CoV-2 Nucleocapsid Protein is associated with nucleic acid. It is the most abundant protein for coronavirus. Because of the strong immunogenicity of coronavirus Nucleocapsid, it is believed that SARS-CoV-2 Nucleocapsid Protein has potential value for the diagnosis of the virus.

What is the host range of SARS-CoV-2 virus? ›

Comparative analysis of SARS-CoV-2 and related coronavirus sequences has shown that SARS-CoV and SARS-CoV-2 likely originated in bats, followed by transmission to an intermediate host, and that both viruses may have an extended host range that includes primates and other mammals (1-3).

What does SARS-CoV-2 RNA detected mean? ›

COVID-19 Positive (SARS-CoV-2 RNA Detected) Test Result

If your COVID-19 test was positive, this means that the test did detect the presence of COVID-19 in your nasal secretions. This result would suggest that you are currently infected with COVID-19.

What are the different types of SARS-CoV-2 antibody tests? ›

A: Qualitative, semi-quantitative, and quantitative tests all tell you if SARS-CoV-2 antibodies were detected in your blood sample with the specific test used.

What is the difference between nucleic acid and antigen test for COVID-19? ›

Molecular tests, such as polymerase chain reaction (PCR) and other nucleic acid amplification tests (NAATs) tests, which detect genetic material called RNA from the virus. Antigen tests, often referred to as rapid tests or, for some, at-home or self tests, which detect proteins called antigens from the virus.

What is the difference between a rapid molecular test and a PCR test? ›

Molecular tests, such as polymerase chain reaction (PCR) and other nucleic acid amplification tests (NAATs) tests, which detect genetic material called RNA from the virus. Antigen tests, often referred to as rapid tests or, for some, at-home or self tests, which detect proteins called antigens from the virus.

What are the diagnostic tests for SARS-CoV-2? ›

For diagnosing current SARS-CoV-2 infection, the CDC recommends using either a nucleic acid amplification test (NAAT) or an antigen test and using a specimen from the upper respiratory tract (e.g., nasal, nasopharyngeal).

What is SARS-CoV-2 RNA detected test results? ›

COVID-19 Positive (SARS-CoV-2 RNA Detected) Test Result

If your COVID-19 test was positive, this means that the test did detect the presence of COVID-19 in your nasal secretions. This result would suggest that you are currently infected with COVID-19.

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