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The Access CEA assay is a paramagnetic particle, chemiluminescent immunoassay for the quantitative determination of Carcinoembryonic Antigen (CEA) levels in human serum, using the Access Immunoassay Systems. CEA measured by the Access Immunoassay Systems is used as an aid in the management of cancer patients in whom changing CEA concentrations have been observed.

The Access CEA assay is a two-site immunoenzymatic "sandwich" assay using two mouse monoclonal anti-CEA antibodies (MAb) which react with different epitopes of CEA. The Access CEA reagent kit is in a liguid ready-to-use format designed for optimal performance on Beckman Coulter's immunoassay analyzers. Each reagent kit contains two reagent packs. Other items needed to run the assay include substrate, calibrators, and wash buffer.

For In Vitro Diagnostic Use Only For the quantitative measurement of carcinoembryonic antigen (CEA) concentration in human serum and plasma (EDTA or heparin) using the VITROS 5600 Integrated System, to aid in the prognosis and management of cancer patients in whom changing concentrations of CEA are observed.

The VITROS Immunodiagnostic Products CEA Reagent Pack (test) is performed using the VITROS CEA Reagent Pack and VITROS CEA Calibrators on the VITROS 5600 System. An immunometric immunoassay technique is used, which involves the reaction of CEA present in the sample with a microwell coated with biotinylated Antibody (Mouse monoclonal anti-CEA) bound to Streptavidin, and a Horseradish Peroxidase (HRP)-labelled antibody conjugate (Mouse monoclonal anti- CEA). Unbound (HRP)-labeled anti-CEA antibody conjugate is removed by washing. The bound HRP conjugate is measured by a luminescent reaction. A reagent containing luminogenic substrates (a luminol derivative and a peracid salt) and an electron transfer agent, is added to the wells. The HRP in the bound conjugate catalyzes the oxidation of the luminol derivative, producing light. The electron transfer agent (a substituted acetanilide) increases the level of light produced and prolongs its emission. The light signals are read by the system. The amount of HRP conjugate bound is directly proportional to the concentration of CEA present in the sample. VITROS CEA Reagent Pack contains: 1 reagent pack containing: - 100 coated wells (antibody, mouse monoclonal anti-CEA, binds ≥8ng CEA/well); ● - 9.7 mL assay reagent (buffer containing bovine serum albumin, bovine gamma globulin and . antimicrobial agent). - 9.7 mL conjugate reagent (HRP-mouse monoclonal anti-CEA, binds ≥123ng CEA/mL). ● VITROS CEA Calibrator contains: - 1 set of VITROS CEA Calibrators 1 and 2 (human CEA in bovine serum with ● antimicrobial agent, 2 mL); nominal values 3 and 250 ng/mL (us/L) - 16 calibrator bar code labels (8 for each calibrator) ●

For in vitro diagnostic use in the quantitative measurement of carcinoembryonic antigen (CEA) in serum and plasma (EDTA and lithium heparin) to aid in the management of cancer patients in whom changing concentrations of CEA are observed using the ADVIA Centaur® XP and ADVIA Centaur® XPT systems.

The assay reagents come in the following configurations: 5 ReadyPack primary reagent packs containing ADVIA Centaur CEA Lite Reagent and Solid Phase ADVIA Centaur CEA Master Curve card (500 Tests) 1 ReadyPack primary reagent pack containing ADVIA Centaur CEA Lite Reagent and Solid Phase ADVIA Centaur CEA Master Curve card (100 Tests) The ReadyPack consists of the following: ADVIA Centaur® CEA ReadyPack® primary reagent pack; Lite Reagent: 5.0 mL/reagent pack polyclonal rabbit anti-CEA antibody (~400 ng/mL) labeled with acridinium ester in phosphate buffered saline with protein stabilizers, sodium azide (0.12%), and preservatives ADVIA Centaur® CEA ReadyPack® primary reagent pack; Solid Phase Reagent: 25.0 mL/reagent pack monoclonal mouse anti-CEA antibody (~120 µg/mL) covalently coupled to paramagnetic particles in phosphate buffered saline with protein stabilizers, sodium azide (0.11%), and preservatives ADVIA Centaur® CEA ReadyPack® ancillary reagent pack; CEA Diluent: 5.0 mL/reagent pack bicine buffer, gelatin, and BSA with preservatives and sodium azide (0.1%) ADVIA Centaur® CEA Diluent: 10.0 mL/reagent vial bicine buffer, gelatin, and BSA with preservatives and sodium azide (0.1%)

The Otympus CEA assay is a paramagnetic particle (Dynabeads"), chemiluminescent immunoassay for the quantitative determination of carcinoembryonic antigen levels in human serum and litthium heparin plasma using the Olympus AU3000i Immunoassay System. The Olympus CEA assay is indicated for serial measurement of CEA as an aid in the management (monitoning) of coloredal cancer patients. These CEA values must be interpreted in conjunction with all other clinical and laboratory data before a medical decision is made. For in vitro diagnostic use only. The Olympus CEA Calibrator is for calibrating the quantitative Olympus CEA assay on the Olympus AU3000i Immunoassay System. The Olympus CEA Control is used for quality control of the Olympus CEA assay on the Olympus AU3000i Immunoassay System.

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VIDAS® CEA (S) is an automated quantitative test for use on the VIDAS instruments, for the quantitative measurement of Carcinoembryonic antigen (CEA) in human serum using the ELFA technique (Enzyme Linked Fluorescent Assay). The VIDAS CEA (S) assay is indicated as an aid in the monitoring of cancer patients in whom changing concentrations of CEA are observed.

The assay principle combines a two-step immunoassay sandwich method with a final fluorescent detection (ELFA). The Solid Phase Receptacle (SPR), a pipette tip-like device, serves as the solid phase as well as the pipetting device for the assay. It is coated with anti-CEA monoclonal immunoglobulins (mouse). The other assay reagents are ready-to-use and pre-dispensed in the sealed reagent strips (STRs). After dilution, the sample is transferred into the well containing CEA antibody (conjugate) labeled with alkaline phosphatase. The sample/conjugate mixture is cycled in and out of the SPR several times. This operation enables the antigen to bind with the immunoglobulins fixed to the interior wall of the SPR and to the conjugate to form a sandwich. Unbound compounds are eliminated during the first washing step. A second incubation step is then performed with alkaline phosphatase-labeled anti-CEA polyclonal antibodies (goat). The unbound conjugate is then eliminated during washing steps. During the final detection step, the substrate (4-Methyl-umbelliferyl phosphate) is cycled in and out of the SPR. The conjugate enzyme catalyzes the hydrolysis of this substrate into a fluorescent product (4-Methyl-umbelliferone) the fluorescence of which is measured at 450 nm. The intensity of the fluorescence is proportional to the concentration of antigen present in the sample. At the end of the assay, results are automatically calculated by the instrument in relation to the calibration curve stored in memory, and then printed out.

The CEA method is an in vitro diagnostic test for the quantitative measurement of carcinoembryonic antigen in human serum and sodium or lithium heparinized plasma on the Dimension Vista System. Measurements of carcinoembryonic antigen are used as an aid in the management of cancer patients in whom changing CEA concentrations have been observed. For the calibration of the Carcinoembryonic Antigen (CEA) method on the Dimension Vista® System.

Dimension Vista® CEA Flex® reagent cartridge: The CEA method is a homogeneous, sandwich chemiluminescent immunoassay based on LOCI™ technology. The LOCI® reagents include two synthetic bead reagents and a biotinylated anti-CEA monoclonal antibody fragment. The first bead reagent (Chemibeads) is coated with an anti-CEA monoclonal antibody and contains chemiluminescent dye. The second bead reagent (Sensibeads) is coated with streptavidin and contains a photosensitizer dye. Sample is incubated with biotinylated antibody and Chemibeads to form bead-CEA-biotinylated antibody sandwiches. Sensibeads are added and bind to the biotin to form bead-pair immunocomplexes. Ulumination of the complex at 680 nm generates singlet oxygen from Sensibeads which diffuses into the Chemibeads, triggering a chemiluminescent reaction. The resulting signal is measured at 612 nm and is a direct function of the CEA concentration in the sample. Dimension Vista® LOCI 5 Calibrator: LOCI 5 CAL is a liquid, multi-analyte, bovine serum albumin based product containing CEA from human tissue culture.

VITROS Immunodiagnostic Products CEA Reagent Pack For in vitro diagnostic use only. The VITROS CEA Reagent Pack quantitatively measures carcinoembryonic antigen (CEA) concentration in human serum and plasma to aid in the prognosis and management of cancer patients in whom changing concentrations of CEA are observed. VITROS Immunodiagnostic Products CEA Calibrators For in vitro use in the calibration of the VITROS Immunodiagnostic System for the quantitative measurement of CEA in serum and plasma (EDTA or heparin). VITROS Immunodiagnostic Products CEA Range Verifiers For in vitro use in verifying the calibration range of the VITROS Immunodiagnostic System when used for the measurement of CEA.

The VITROS Immunodiagnostic System uses luminescence as the signal in the quantitative and semi-quantitative determination of selected analytes in serum and plasma. Coated microwells are used as the solid phase separation system. The system is comprised of three main elements: The VITROS Immunodiagnostic Products range of immunoassay products (in this case VITROS Immunodiagnostic Products CEA Reagent Pack, VITROS Immunodiagnostic Products CEA Calibrators (both cleared under K990943), and VITROS Immunodiagnostic Products CEA Range Verifiers (K990984) which are combined by the VITROS Immunodiagnostic System to perform the VITROS CEA assay. The VITROS Immunodiagnostic System instrumentation, which provides automated use of the immunoassay kits. The VITROS Immunodiagnostic System was cleared for market by a separate 510(k) pre-market notification (K962919). Common reagents used by the VITROS System in each assay include the VITROS Immunodiagnostic Products Signal Reagent and VITROS Immunodiagnostic Products Universal Wash Reagent which were cleared as part of the VITROS Immunodiagnostic Products Total T3 Reagent Pack and VITROS Immunodiagnostic Products Total T3 Calibrators 510(k) premarket notification (K964310). The VITROS System and common reagents are dedicated specifically for use only with the VITROS Immunodiagnostic Products range of immunoassay products.

The Access CEA assay is a paramagnetic particle, chemiluminescent immunoassay for the quantitative determination of Carcinoembryonic Antigen (CEA) levels in human serum, using the Access Immunoassay Systems. CEA measured by the Access Immunoassay Systems is used as an aid in the management of cancer patients in whom changing CEA concentrations have been observed.

The Access® CEA reagents consist of reagent packs, calibrators, bi-level controls, substrate and wash buffer.

ST AIA-PACK CEA is designed for IN VITRO DIAGNOSTIC USE ONLY for the quantitative measurement of Carcinoembryonic Antigen (CEA) in human serum to aid in the management of cancer patients in whom changing concentrations of CEA are observed on specific TOSOH AIA System Analyzers.

The ST AIA-PACK CEA is a two-site immunoenzymometric assay which is performed entirely in the AIA-PACK. CEA present in the test sample is bound with monoclonal antibody immobilized on a magnetic solid phase and enzyme-labeled monoclonal antibody in the AJA-PACK. The magnetic beads are washed to remove unbound enzyme-labeled monoclonal antibody and are then incubated with a fluorogenic substrate, 4-methylumbelliferyl phosphate (4MUP). The amount of enzyme-labeled monoclonal antibody that binds to the beads is directly proportional to the CEA concentration in the test sample. A standard curve is constructed, and unknown sample concentrations are calculated using this curve.

This in vitro immunoassay is intended to quantitatively measure CEA in human serum using ADVIA IMS CEA Assay on a Bayer ADVIA® IMS™. Carcinoembryonic Antigen (CEA) is a protein polysaccharide normally present at very low concentrations in the blood of healthy adults. Colorectal cancer and a variety of neonlantic and other disease processes cause significant elevation of CEA, thus issued as a tumor marker. CEA assay is designed to aid in the management and prognosis of cancer patients in whom changing concentrations of CEA are observed. The Bayer ADVIA® IMS™ CEA assay is an in vitro diagnostic device intended to qualitatively measure carcinoembryonic antigen (CEA) in human serum. CEA test results are to be used as an aid in the management of cancer patients by monitoring CEA concentrations. CEA testing is not recommended as a screening procedure to detect cancer in the general population.

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