Product Manual

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Clarity COVIBLOCK™
COVID-19 lgG/lgM Rapid Test Cassette
(Whole Blood/ Plasma/Serum/Fingerstick
Whole Blood)
For in vitro diagnostics use only
For prescription use only
For Emergency Use Authorization only
The Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid Test Cassette is
a membrane-based lateral flow immunoassay intended for the
qualitative detection and differentiation of IgG and IgM antibodies to
SARS-CoV-2 in human serum, plasma (dipotassium EDTA, sodium
citrate, sodium heparin), venous whole blood (dipotassium EDTA,
sodium citrate, sodium heparin) and fingerstick whole blood. The
Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid Test Cassette is
intended for use as an aid in identifying individuals with an adaptive
immune response to SARS-CoV-2, indicating recent or prior infection.
The Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid Test should not
be used to diagnose acute SARS-CoV-2 infection. At this time, it is
unknown for how long antibodies persist following infection and if the
presence of antibodies confers protective immunity.
Testing of serum, plasma and venous whole blood 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 high or moderate complexity tests.
Testing of fingerstick whole blood specimens is limited to laboratories
certified under the Clinical Laboratory Improvement Amendments of
1988 (CLIA), 42 U.S.C. §263a, that meet the requirements to perform
high, moderate or waived complexity tests. Testing of fingerstick whole
blood specimens is authorized for use at the Point of Care (POC), i.e.,
in patient care settings operating under a CLIA Certificate of Waiver,
Certificate of Compliance, or Certificate of Accreditation.
Results are for the detection of SARS-CoV-2 antibodies. IgG and IgM
antibodies to SARS-CoV-2 are generally detectable in blood several
days after initial infection, although the duration of time antibodies are
present post-infection is not well characterized. Individuals may have
detectable virus present for several weeks following seroconversion.
Laboratories within the United States and its territories are required to
report all results to the appropriate public health authorities.
The sensitivity of Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid
Test Cassette early after infection is unknown. Negative results do not
preclude acute SARS-CoV-2 infection. If acute infection is suspected,
direct testing for SARS-CoV-2 is necessary.
False positive results for the Clarity COVIBLOCK
TM
COVID-19 IgG/IgM
Rapid Test Cassette may occur due to cross reactivity from pre-
existing antibodies or other possible causes. Due to the risk of false
positive results, confirmation of positive results should be considered
using a second, different SARS-CoV-2 IgG or IgM assay.
Samples should only be tested from individuals that are 15 days or
more post symptom onset.
The Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid Test Cassette is
only for use under the Food and Drug Administration’s Emergency Use
Authorization.
The Clarity COVIBLOCK
TM
COVID-19 IgG/IgM Rapid test Cassette
(Whole Blood/ Plasma/ Serum) is a qualitative membrane-based
immunoassay for the detection of SARS-CoV-2 antibodies in whole
blood, plasma, or serum. This test consists of two components, an IgG
component, and an IgM component.
In the IgG component, anti-human IgG is coated in IgG test line region.
During testing, the specimen reacts with SARS-CoV-2 antigen-coated
particles in the test cassette. The antigen is the receptor binding
domain (RBD) of Spike Glycoprotein. The mixture then migrates
upward on the membrane chromatographically by capillary action and
reacts with the anti-human IgG in IgG test line region. If the specimen
contains IgG antibodies to SARS-CoV-2, a colored line will appear in
IgG test line region.
In the IgM component, anti-human IgM is coated in IgM test line
region. During testing, the specimen reacts with SARS-CoV-2 antigen-
coated particles in the test cassette. The mixture then migrates upward
on the membrane chromatographically by capillary action and reacts
with the anti-human IgM in IgM test line region.
If the specimen contains IgG antibodies to SARS-CoV-2, a colored
line will appear in IgG test line region. If the specimen contains IgM
antibodies to SARS-CoV-2, a colored line will appear in IgM test line
region. If the specimen does not contain antibodies to SARS-CoV-2,
no colored line will appear in either of the test line regions, indicating a
negative result.
To serve as a procedural control, a colored line should always appear
in the control line region, indicating that the proper volume of
specimen has been added and membrane wicking has occurred.
In the control component, goat anti-rabbit antibody is coated in the
control line region. During testing, the specimen migrates via capillary
action along the membrane carries the rabbit-antibody-coated
particles to the control line region. If proper volume of specimen has
been added, and the membrane wicking has occurred, Goat anti-
rabbit antibody immobilized on the control line region will capture the
rabbit-antibodies-coated particles, resulting in a colored line in the
control line region.
STORAGE AND STABILITY
Store as packaged in the sealed pouch either at room temperature
or refrigerated 2°C – 30°C (36°F – 86°F). DO NOT FREEZE.
The test is stable through the expiration date printed on the sealed
pouch. Do not use after the expiration date.
The test must remain in the sealed pouch until use. Use the test
within 1 hour after removing from the seal pouch.
REAGENTS
The test cassette contains SARS-CoV-2 spike antigen conjugated
gold colloid particles and rabbit IgG antibodies conjugated gold
colloid particles on the conjugate pad.
Anti-human IgM, anti-human IgG, goat anti-rabbit antibodies are
coated on the membrane.
The buffer contains 0.02% NaN
3
+ 0.025% Kanamycin Sulfate
MATERIALS SUPPLIED
Individually Pouched Test Cassettes (20)
Bottle containing 3 ml Buffer (0.02% NaN
3
+ 0.025% Kanamycin
Sulfate (1) OR single-pack buffer bottles (20)
Safety lancets (20)
Alcohol swabs (20)
Package Insert (1)
Quick Reference Guide (1)
Disposable Plastic Pipettes (20)
MATERIALS REQUIRED BUT NOT PROVIDED
Micropipette with Tips (10- 100μL)
Timer
Centrifuge (for plasma and serum only)
Specimen collection container
External positive and negative controls (recombinant anti-SARS-
CoV-2 IgG/IgM in negative human serum w/0.1% sodium azide)
available for purchase from Clarity Diagnostics (Catalog Number:
CD-COV19-GMCTL)
PRECAUTIONS
For professional in vitro diagnostic use only.
For prescription use only.
For use under the Emergency Use Authorization Only. Follow the
instructions for use carefully. Reliability of assay results cannot be
guaranteed if there is any deviation from the instructions in this
package insert.
This test has not been FDA cleared or approved, but has been
authorized for emergency use by FDA under an EUA. Testing of
serum, plasma and venous whole blood specimens is limited to
laboratories certified under CLIA that meet the requirements to
perform moderate, high or waived complexity tests. Testing of
fingerstick whole blood specimens is authorized for use at the Point
of Care (POC), i.e. in patient care settings operating under a CLIA
Certificate of Waiver, Certificate of Compliance, or Certificate of
Accreditation.
The emergency use of this test is only authorized for the duration of
the declaration that circumstances exist justifying the authorization
of emergency use of in vitro diagnostic tests for detection and/or
diagnosis of COVID-19 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.
INTENDED USE
PRINCIPLE

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