(515 days)
The ADVIA® Chemistry Enzymatic Hemoglobin A1c (A1c E) assay is an in vitro diagnostic assay for the quantitative determination of mmol/mol HbA1c (IFCC) and % HbA1c (DCCT/NGSP) in human anticoagulated venous whole blood and hemolysate for use on the ADVIA® Chemistry Systems. Measurement of Hemoglobin A1c is used as an aid in the diagnosis and monitoring of long-term blood glucose control in patients with diabetes mellitus, and as an aid in the identification of patients at risk for developing diabetes mellitus.
The ADVIA® Chemistry Enzymatic Hemoglobin A1c (A1c E) assay measures hemoglobin A1c in human anticoagulated whole blood and hemolysate. The assay consists of three reagents (R1, R2, and Pretreatment Solution), which are liquid and ready to use.
The assay offers both an automated and a manual application. The automated application (A1c_E) lyses the anticoagulated whole blood specimen on the system for the automated application (A1c E). Samples may also be lysed manually using the ADVIA® Chemistry A1c_E Pretreatment Solution to obtain hemolysate for the manual application (A1c_EM). The two applications yield the same results.
The provided document is a 510(k) Summary for a medical device called the ADVIA® Chemistry Enzymatic Hemoglobin A1c (A1c E) Assay. This document describes a submission seeking FDA clearance for a modification to an existing device, specifically to extend the low end of the analytical measuring range of total hemoglobin (tHb).
However, the document does not contain the detailed study results, acceptance criteria tables with performance data, information on sample sizes for test and training sets, expert qualifications, or adjudication methods that would be typically found in a comprehensive study report proving a device meets acceptance criteria.
The 510(k) Summary states that "Performance data were needed to evaluate the change" and "The verification study of linearity was done in accordance with the CLSI standard recognized by the FDA. This study along with other verification activities demonstrate equivalent performance to the predicate and effective risk mitigations. The studies met pre-determined acceptance criteria." and "Testing verified all acceptance criteria were met."
While these statements confirm that studies were conducted and met acceptance criteria, the specific details requested in your prompt (e.g., the actual table of acceptance criteria vs. performance, sample sizes, expert involvement, etc.) are not present in this summary document.
Therefore, I cannot provide the requested information from this document. To answer your prompt, I would need a more detailed study report or clinical trial summary that includes the actual performance data and study design specifics.
§ 862.1373 Hemoglobin A1c test system.
(a)
Identification. A hemoglobin A1c test system is a device used to measure the percentage concentration of hemoglobin A1c in blood. Measurement of hemoglobin A1c is used as an aid in the diagnosis of diabetes mellitus and as an aid in the identification of patients at risk for developing diabetes mellitus.(b)
Classification. Class II (special controls). The special controls for this device are:(1) The device must have initial and annual standardization verification by a certifying glycohemoglobin standardization organization deemed acceptable by FDA.
(2) The premarket notification submission must include performance testing to evaluate precision, accuracy, linearity, and interference, including the following:
(i) Performance testing of device precision must, at a minimum, use blood samples with concentrations near 5.0 percent, 6.5 percent, 8.0 percent, and 12 percent hemoglobin A1c. This testing must evaluate precision over a minimum of 20 days using at least three lots of the device and three instruments, as applicable.
(ii) Performance testing of device accuracy must include a minimum of 120 blood samples that span the measuring interval of the device and compare results of the new device to results of a standardized test method. Results must demonstrate little or no bias versus the standardized method.
(iii) Total error of the new device must be evaluated using single measurements by the new device compared to results of the standardized test method, and this evaluation must demonstrate a total error less than or equal to 6 percent.
(iv) Performance testing must demonstrate that there is little to no interference from common hemoglobin variants, including Hemoglobin C, Hemoglobin D, Hemoglobin E, Hemoglobin A2, and Hemoglobin S.
(3) When assay interference from Hemoglobin F or interference with other hemoglobin variants with low frequency in the population is observed, a warning statement must be placed in a black box and must appear in all labeling material for these devices describing the interference and any affected populations.