DIMENSION VISTA; CER FLEX REAGENT CARTRIDGE, PROTEIN 1 CALIBRATOR, PROTEIN 1 CONTROL MEDIUM, PROTEIN 1 CONTROL HIGH

K063655 · Dade Behring, Inc. · CHN · Feb 15, 2007 · Immunology

Device Facts

• Record ID: K063655
• Device Name: DIMENSION VISTA; CER FLEX REAGENT CARTRIDGE, PROTEIN 1 CALIBRATOR, PROTEIN 1 CONTROL MEDIUM, PROTEIN 1 CONTROL HIGH
• Applicant: Dade Behring, Inc.
• Product Code: CHN · Immunology
• Decision Date: Feb 15, 2007
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 866.5210
• Device Class: Class 2

Indications for Use

The CER method is an in vitro diagnostic test for the quantitative determination of Ceruloplasmin in human serum, heparinized plasma or EDTA plasma on the Dimension Vista System. Measurements of ceruloplasmin aid in the diagnosis of copper metabolism disorders. PROT1 CAL is an in vitro diagnostic product for the calibration of the C3 Complement (C3), C4 Complement (C4), Ceruloplasmin (CER), Immunoglobulin A (IGA), Immunoglobulin G (IGG), Immunoglobulin M (IGM) and Prealbumin (PREALB) methods on the Dimension Vista® System. PROT1 CON L, M and H are assayed intralaboratory quality controls for assessment of precision and analytical bias in the determination of C3 Complement (C3), C4 Complement (C4), ceruloplasmin (CER), immunoglobulin A (IGA), immunoglobulin G (IGG), Immunoglobulin M (IGM) and prealbumin (PREALB) on the Dimension Vista® System.

Device Story

The Dimension Vista CER Flex reagent cartridge is an in vitro diagnostic assay for quantitative ceruloplasmin measurement in human serum/plasma. It utilizes an immunochemical reaction where proteins in the sample form immune complexes with specific antibodies; these complexes scatter light. The intensity of scattered light is proportional to protein concentration. The system evaluates results by comparing them against a known standard. The device is used in clinical laboratory settings by trained personnel. Results assist clinicians in diagnosing copper metabolism disorders. The system includes associated liquid, human serum-based calibrators and assayed quality controls to ensure analytical precision and bias assessment.

Clinical Evidence

Bench testing only. Precision study (20 days, duplicate analysis) showed within-lab CVs ranging from 1.78% to 5.22%. Linearity confirmed across 0.07 to 3.40 g/L range (slope 1.018, r=1.000). Method comparison against predicate (n=130) yielded slope 1.009, intercept 0.008, r=0.994. Interference testing confirmed no significant bias (±10%) for common endogenous substances, RF up to 685 IU/mL, and total protein up to 127 g/L. Matrix comparison (serum vs. plasma) showed high agreement (r ≥ 0.998).

Technological Characteristics

Reagent cartridge contains reaction buffer (phosphate buffer, polyethylene) and rabbit antiserum to human ceruloplasmin. Quantitative nephelometric sensing principle. Energy source: system-integrated light source for scattering. Dimensions/form factor: multi-well reagent cartridge. Connectivity: system-specific (Dimension Vista®). Sterilization: not specified. Software: automated system-controlled analysis.

Indications for Use

Indicated for the quantitative determination of ceruloplasmin in human serum, heparinized plasma, or EDTA plasma to aid in the diagnosis of copper metabolism disorders. For prescription use only.

Regulatory Classification

Identification

A ceruloplasmin immunological test system is a device that consists of the reagents used to measure by immunochemical techniques the ceruloplasmin (copper-transporting serum protein) in serum, other body fluids, or tissues. Measurements of ceruloplasmin aid in the diagnosis of copper metabolism disorders.

Special Controls

*Classification.* Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 866.9.

Predicate Devices

• Dade Behring N Antisera to Human Ceruloplasmin (k053074)
• Dade Behring N Protein Standard SL (k012470)
• Dade Behring N/T Protein Control SL (k012468)

Submission Summary (Full Text)

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# 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY

A. 510(k) Number:
k063655

B. Purpose for Submission:
New Device

C. Measurand:
Ceruloplasmin

D. Type of Test:
Quantitative, nephelometric.

E. Applicant:
Dade Behring, Inc.

F. Proprietary and Established Names:
Dimension Vista™ Ceruloplasmin Flex® reagent cartridge (CER)
Dimension Vista™ Protein 1 Calibrator
Dimension Vista™ Protein 1 Control L
Dimension Vista™ Protein 1 Control M
Dimension Vista™ Protein 1 Control H

G. Regulatory Information:

1. Regulation section:
21 CFR 866.5210; Ceruloplasmin Immunological Test System
21 CFR 862.1150; Calibrator
21 CFR 862.1660; Quality Control Material (assayed and unassayed)

2. Classification:
Class II; Ceruloplasmin test system and Calibrator
Class I; Control

3. Product code:
CHN; Immunochemical, Ceruloplasmin
JIX; Calibrator, Multi-Analyte Mixture
JJY; Multi Analyte Controls

4. Panel:
Immunology 82; Clinical Chemistry (75)

H. Intended Use:

1. Intended use(s):
Dimension Vista™ CER Flex® reagent cartridge:
The CER method is an *in vitro* diagnostic test for the quantitative determination of ceruloplasmin in human serum, heparinized plasma or EDTA plasma on the Dimension Vista® System. Measurements of ceruloplasmin aid in the diagnosis of copper metabolism disorders.
Dimension Vista™ Protein 1 Calibrator:
PROT1 CAL is an *in vitro* diagnostic product for the calibration of the C3 Complement (C3), C4 Complement (C4), Ceruloplasmin (CER), Immunoglobulin A (IGA), Immunoglobulin G (IGG), Immunoglobulin M (IGM) and Prealbumin (PREALB) methods on the Dimension Vista® System.

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# Dimension Vista™ Protein 1 Control L, M and H:

PROT1 CON L, M and H are assayed intralaboratory quality controls for assessment of precision and analytical bias in the determination of C3 complement (C3), C4 complement (C4), ceruloplasmin (CER), immunoglobulin A (IGA), immunoglobulin G (IGG), immunoglobulin M (IGM) and prealbumin (PREALB) on the Dimension Vista® System.

2. Indication(s) for use:
Same as intended use

3. Special conditions for use statement(s):
For prescription use only.

4. Special instrument requirements:
For use on the Dade Behring Dimension Vista® System

# I. Device Description:

# Dimension Vista™ CER Flex® reagent cartridge

Dimension Vista™ CER Flex® reagent cartridge consists of 12 wells containing reaction buffer: phosphate buffer and polyethylene and rabbit antiserum to human ceruloplasmin.

# Dimension Vista™ Protein 1 Calibrator

Protein 1 Calibrator is a multi-analyte, liquid, human serum based product containing C3 complement, C4 complement, ceruloplasmin (CER), immunoglobulin A (IGA), immunoglobulin G (IGG), immunoglobulin M (IGM) and prealbumin (PREALB).

# Dimension Vista™ Protein 1 Control L, M and H

Protein 1 Control L, M and H are multi-analyte, liquid, human serum based products containing C3 complement, C4 complement, ceruloplasmin (CER), immunoglobulin A (IGA), immunoglobulin G (IGG), immunoglobulin M (IGM) and prealbumin (PREALB).

Calibrators and Controls are sold separately.

# J. Substantial Equivalence Information:

1. Predicate device name(s):
Dade Behring N Antisera to Human Ceruloplasmin
Dade Behring N Protein Standard SL
Dade Behring N/T Protein Control SL

2. Predicate 510(k) number(s):
k053074; k012470; k012468

3. Comparison with predicate:

| Similarities | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Intended Use | For the quantitative determination of ceruloplasmin | Same |
| Antibody | Rabbit polyclonal | Same |
| Reportable Range | 0.07 to 2.2 g/L | Same |
| Controls | L, M and H | Same |

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| Similarities | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Traceability | Calibrators traceable to ERM® DA470 reference standard | Same |
| Differences | | |
| Item | Device | Predicate |
| Sample matrix | Serum, heparinized plasma or EDTA plasma | Serum or heparinized plasma |
| Instrumentation | Dimension Vista® System | BN™ Systems |
| Calibrator | Dimension Vista™ Protein 1 Calibrator | N Protein Standard SL |
| Calibrator Constituents | C3, C4, ceruloplasmin, IgA, IgG, IgM, and prealbumin | IgG, IgG1, IgG2, IgG3, IgG4, IgA, IgM, IgE, C3c, C4, transferrin, albumin, α1-antitrypsin, α2-macroglobulin, haptoglobin, α1-acid glycoprotein, prealbumin, hemopexin, ceruloplasmin, retinol binding protein, Ig Light-chain kappa, Ig Light-chain lambda, soluble transferrin receptor, ferritin, β2-microglobulin and total protein |
| Control | Dimension Vista™ Protein 1 Control L, M and H | N/T Protein Control SL L, M and H |
| Control Constituents | C3, C4, ceruloplasmin, IgA, IgG, IgM, and prealbumin | IgG, IgG1, IgG2, IgG3, IgG4, IgA, IgM, IgE, C3c, C4, transferrin, albumin, α1-antitrypsin, α2-macroglobulin, haptoglobin, α1-acid glycoprotein, prealbumin, hemopexin, ceruloplasmin, retinol binding protein, Ig Light-chain kappa, Ig Light-chain lambda, soluble transferrin receptor, ferritin, β2-microglobulin and total protein. |

# K. Standard/Guidance Document Referenced (if applicable):

None

# L. Test Principle:

Proteins contained in human body fluids form immunochemical reaction with specific antibodies. These complexes scatter a beam o flight passed through the sample. The

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intensity of the scattered light is proportional to the concentration of the relevant protein in the sample. The result is evaluated by comparison with a standard of known concentration.

## M. Performance Characteristics (if/when applicable):

### 1. Analytical performance:

#### a. Precision/Reproducibility:

**Precision Study**

Specimens at various levels (Protein 1 Control L, M, H; Serum High, Serum Pool High and Plasma High) were analyzed in duplicate, twice a day, for 20 days. The repeatability and within-lab standard deviations (SD) and percent coefficient of variation (%CV) were calculated and a summary of the precision data is presented in the Table below.

| Material | Mean Value (g/L) | Within-run SD (%CV) | Within-Lab SD (%CV) |
| --- | --- | --- | --- |
| PROT1 CON L | 0.22 | 0.01 (3.81) | 0.01 (4.53) |
| PROT1 CON M | 0.26 | 0.01 (3.02) | 0.01 (3.42) |
| PROT1 CON H | 0.41 | 0.02 (3.94) | 0.02 (4.01) |
| Serum High | 1.63 | 0.04 (2.54) | 0.05 (3.08) |
| Serum Pool High | 2.13 | 0.03 (1.54) | 0.04 (1.78) |
| Plasma Pool | 0.51 | 0.01 (2.65) | 0.03 (5.22) |

#### b. Linearity/assay reportable range:

Linearity across the assay range was confirmed by testing a calibrator with a high concentration of ceruloplasmin. This calibrator was serially diluted with System Diluent (3.40 to 0.07 g/L). Each dilution was tested in replicates of three. Data were analyzed using linear regression analysis. The acceptance criteria of slope between 0.9 and 1.1 and correlation coefficient ≥0.95 were met. A summary of the linearity data is presented in the table below.

**Linearity Data Summary**

| Dimension Vista™ | n | Slope | Intercept | Correlation Coefficient |
| --- | --- | --- | --- | --- |
| CER | 6 | 1.018 | -0.015 | 1.000 |

### High Dose Hook Effect

The possibility of hook effect occurring when using the Dimension Vista™ CER assay was evaluated with a serum sample above the assay range. The sample was analyzed on both the BN ProSpec® System and the Dimension Vista® System, indicating no hook effect up to 4.441 g/L. A summary of the hook effect data are presented below.

| BN ProSpec® System Ceruloplasmin Concentration (g/L) | Dimension Vista® Test Dilution | Dimension Vista™ CER Concentration (g/L) |
| --- | --- | --- |
| 4.13 | 1:10 | >2.2 (exceeds assay range) |
| | 1:100 | 4.441 |

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c. Traceability, Stability, Expected values (controls, calibrators, or methods): The analyte in the calibrator and controls is traceable to ERM® DA470 reference standard.

d. Detection limit:

Analytical sensitivity is defined as the minimal detectable level of analyte which can be distinguished from zero. The value was calculated as the mean value of twenty replicates of the System Diluent plus 2SD and was determined to be 0.14 g/L.

e. Analytical specificity:

Potentially interfering endogenous substances

Interference testing was performed to determine the effect of various endogenous and exogenous substances on the Dimension Vista™ CER assay. For all interferents except Triglycerides, RF, and Total Protein, the percent bias was determined by testing a control sample without the interferent and comparing it to the value obtained from a test sample to which the potential interferent had been added. A bias exceeding ±10% was considered a significant interference.

For each spiked sample, the % recovery was determined [% Recovery = (Test result/Baseline) x 100]. The acceptance criterion of ±10% relative deviation from the base pool was met for all interferents tested. A summary of the results is presented below.

| Exogenous Substance | Concentration in sample | 95% Sample + 5% Stock solution | | |
| --- | --- | --- | --- | --- |
| | | Test sample Mean g/L | Control g/L | Recovery (%) |
| Bilirubin (conjugated) | 60 mg/dL | 0.46 | 0.44 | 103% |
| Bilirubin (unconjugated) | 60 mg/dL | 0.45 | 0.44 | 100% |
| Creatinine | 30 mg/dL | 0.44 | 0.44 | 100% |
| Hemoglobin | 1000 mg/dL | 0.44 | 0.44 | 98% |
| Immunoglobulin G (IgG) | 5000 mg/dL | 0.34 | 0.32 | 106% |
| Protein: Albumin | 6000 mg/dL | 0.39 | 0.39 | 101% |
| Urea | 500 mg/dL | 0.45 | 0.44 | 102% |
| Cholesterol | 500 mg/dL | 0.43 | 0.42 | 102% |
| Uric Acid | 20 mg/dL | 0.44 | 0.44 | 100% |

Triglyceride interference was evaluated by testing five samples containing a known amount of triglycerides and compared to results from the same sample after centrifugation. Results showed no significant change in CER recovery after centrifugation. This study however, only showed effect of centrifugation but did not address the triglyceride interference since the actual CER concentration in these samples without triglycerides were not known. The package insert was revised to state that lipemic samples should be avoided in the specimen handling section.

To evaluate interference from total protein (TP) and rheumatoid factor (RF), samples which had RF concentrations > 500 IU/mL and TP concentrations > 120 g/L and samples with no detectable RF concentration or low TP concentrations were used to prepare samples for the study. A (1+1) mixture of

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samples with high concentrations of RF and TP were prepared and the ceruloplasmin concentrations determined in replicates of five on the Dimension® Vista System. For each sample preparation, the $\%$ recovery was calculated [% Recovery = (measured result/calculated result) x 100]. The acceptance criterion of $\pm 10\%$ relative deviation from the calculated result was met. No significant interference was found with the Dimension Vista® CER method from the presence of RF up to $685~\mathrm{IU / mL}$ or from elevated Total Protein at $127~\mathrm{g / L}$ at CER concentrations ranging from 0.19 to $0.754~\mathrm{g / L}$ . Results for TP and RF interference are presented in the following tables:

| | TP (g/L) | CER (g/L) |
| --- | --- | --- |
| Sample A | 213 | 0.173 |
| Sample B | 217 | 0.419 |
| Sample C | 209 | 0.707 |
| Sample D | 131 | 0.191 |
| Sample E | 128 | 0.447 |
| Sample F | 132 | 0.755 |
| Sample G | 40.9 | 0.206 |
| Sample H | 33.1 | 0.327 |
| Sample I | 35.3 | 0.666 |
| Sample ID | Dilution 1+1 | TP (g/L) | CER calculated (g/L) | CER measured (g/L) | Recovery (%) |
| --- | --- | --- | --- | --- | --- |
| 1 | Sample A + G | 127 | 0.190 | 0.196 | 103 |
| 2 | Sample B + H | 125 | 0.373 | 0.374 | 100 |
| 3 | Sample C + I | 122 | 0.687 | 0.693 | 101 |
| 4 | Sample D + G | 86.0 | 0.198 | 0.203 | 102 |
| 5 | Sample E + H | 80.6 | 0.387 | 0.392 | 101 |
| 6 | Sample F + I | 83.7 | 0.711 | 0.791 | 111 |
| | RF (IU/mL) | CER (g/L) |
| --- | --- | --- |
| Sample A | 922 | 0.248 |
| Sample B | 1370 | 0.443 |
| Sample C | 1340 | 0.762 |
| Sample D | 504 | 0.207 |
| Sample E | 774 | 0.470 |
| Sample F | 423 | 0.628 |
| Sample G | < 9.6 | 0.185 |
| Sample H | < 9.6 | 0.430 |
| Sample I | < 9.6 | 0.746 |
| Sample ID | Dilution 1+1 | RF (IU/mL) | CER calculated (g/L) | CER measured (g/L) | Recover (%) |
| --- | --- | --- | --- | --- | --- |
| 1 | Sample A + G | 461 | 0.216 | 0.219 | 101 |
| 2 | Sample B + H | 685 | 0.415 | 0.415 | 100 |
| 3 | Sample C + I | 122 | 0.687 | 0.693 | 101 |
| 4 | Sample D + G | 86.0 | 0.198 | 0.203 | 102 |
| 5 | Sample E + H | 80.6 | 0.387 | 0.392 | 101 |
| 6 | Sample I + I | 83.7 | 0.711 | 0.791 | 111 |

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| Sample ID | Dilution 1+1 | RF (IU/mL) | CER calculated (g/L) | CER measured (g/L) | Recover (%) |
| --- | --- | --- | --- | --- | --- |
| 3 | Sample C + I | 670 | 0.754 | 0.733 | 97 |
| 4 | Sample D + G | 252 | 0.196 | 0.194 | 99 |
| 5 | Sample E + H | 387 | 0.450 | 0.461 | 102 |
| 6 | Sample F + I | 212 | 0.507 | 0.506 | 100 |

f. Assay cut-off:
No change.

2. Comparison studies:

a. Method comparison with predicate device:
The Dimension Vista™ CER assay was compared to the Dade Behring N Antisera to Human Ceruloplasmin assay on the BN ProSpec® System by evaluating 60 serum samples, 32 Li plasma and 38 NH-plasma samples with concentrations ranging from 0.09 g/L to 2.20 g/L. Regression analysis of these results yielded the following results:

Method Comparison Study

| Comparative Method | n | Slope | Intercept (g/L) | Correlation Coefficient |
| --- | --- | --- | --- | --- |
| N Antisera to Human Ceruloplasmin on BN ProSpec® (95% CI) | 130 | 1.009 (0.986-1.036) | 0.008 (0.00-0.02) | 0.994 |

b. Matrix comparison:

Serum versus Plasma Comparison:

A comparison was performed with matched specimens of serum, and EDTA, lithium heparin, and sodium heparin plasma (10 for each serum/plasma pairs) assayed on the Dimension Vista® System. The samples covered the reportable range. Linear regression analysis showed agreement between the serum and the plasma samples tested.

| Linear Regression vs. Serum | | | |
| --- | --- | --- | --- |
| | Li Hep | Na Hep | EDTA |
| Slope: | 0.99 | 1.02 | 0.97 |
| Y-int (g/L): | 0.00 | -0.02 | 0.01 |
| r: | 0.999 | 0.998 | 1.000 |
| Syx: | 0.03 | 0.05 | 0.02 |
| Slope 95% CI | 0.971-1.01 | 0.986-1.06 | 0.955-0.99 |
| % Recovery Statistics | | | |
| Mean: | -0.8% | -1.0% | -0.4% |
| Min: | -4.9% | -5.1% | -5.8% |
| Max: | 5.3% | 4.2% | 5.7% |

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3. Clinical studies:
a. Clinical Sensitivity: Not applicable.
b. Clinical specificity: Not applicable.
c. Other clinical supportive data (when a. and b. are not applicable): Not applicable.

4. Clinical cut-off: Not applicable.

5. Expected values/Reference range: Expected Values: 0.2 – 0.6 g/L. This reference interval applies to serum samples from healthy adults

N. Proposed Labeling: The labeling is sufficient and it satisfies the requirements of 21 CFR Part 809.10.

O. Conclusion: The submitted information in this premarket notification is complete and supports a substantial equivalence decision.

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