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Clinical performance of two new, fully integrated molecular platforms used for HIV-1, HBV and HCV viral load analysis, the NeuMoDx 288 and the Alinity m.
Journal of Clinical Virology 2023 January 3
BACKGROUND: Viral load (VL) determination in patients with human immunodeficiency virus type 1 (HIV-1), hepatitis B virus (HBV) and hepatitis C virus (HCV) is essential for proper patient management and follow-up. New molecular platforms have been developed to fully automate these diagnostic assays.
OBJECTIVE: Evaluation of the clinical performance of HIV-1, HBV and HCV VL assays on the Alinity m (Abbott) and NeuMoDx (Qiagen) molecular platforms.
METHOD: Test panels of the three viruses have been compiled of 100 plasma and/or serum samples per target containing non-detectable, non-quantifiable and quantifiable VLs. All samples were retrospectively tested on the Alinity m and NeuMoDx platforms according to manufacturers' instructions.
RESULTS: A total of 74, 86 and 66 samples with valid results for both platforms were included in the HIV-1, HBV and HCV analysis respectively. Overall qualitative agreement of the assays on both platforms was 78% for HIV-1, 93% for HBV and 100% for HCV. Quantitative agreement (less than 0.5 log difference) was shown to be 68% for HIV-1, 68% for HBV and 94% for HCV.
CONCLUSION: The Alinity m and NeuMoDx HCV assay have a comparable performance. Quantification differences in the HIV-1 assay were mostly apparent in the lower VLs and under-quantification of the NeuMoDx HBV assay was observed.
OBJECTIVE: Evaluation of the clinical performance of HIV-1, HBV and HCV VL assays on the Alinity m (Abbott) and NeuMoDx (Qiagen) molecular platforms.
METHOD: Test panels of the three viruses have been compiled of 100 plasma and/or serum samples per target containing non-detectable, non-quantifiable and quantifiable VLs. All samples were retrospectively tested on the Alinity m and NeuMoDx platforms according to manufacturers' instructions.
RESULTS: A total of 74, 86 and 66 samples with valid results for both platforms were included in the HIV-1, HBV and HCV analysis respectively. Overall qualitative agreement of the assays on both platforms was 78% for HIV-1, 93% for HBV and 100% for HCV. Quantitative agreement (less than 0.5 log difference) was shown to be 68% for HIV-1, 68% for HBV and 94% for HCV.
CONCLUSION: The Alinity m and NeuMoDx HCV assay have a comparable performance. Quantification differences in the HIV-1 assay were mostly apparent in the lower VLs and under-quantification of the NeuMoDx HBV assay was observed.
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