The performance of a new point-of-care HIV virus load technology to identify patients failing antiretroviral treatment

•The performance of a new Point of Care m-PIMA was analyzed.•m-PIMA use only 50 μL of plasma and a turnaround time of one hour.•m-PIMA HIV-1 viral load had a great concordance with the Abbott M2000 assay.•m-PIMA was efficient to detect and quantify HIV-2.•m-PIMA can been a good option to detect pati...

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Veröffentlicht in:Journal of clinical virology 2020-01, Vol.122, p.104212-104212, Article 104212
Hauptverfasser: Mariani, Diana, de Azevedo, Marcelo C.V.M., Vasconcellos, Isabelle, Ribeiro, Luiz, Alves, Cassia, Ferreira, Orlando C., Tanuri, Amilcar
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Sprache:eng
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Zusammenfassung:•The performance of a new Point of Care m-PIMA was analyzed.•m-PIMA use only 50 μL of plasma and a turnaround time of one hour.•m-PIMA HIV-1 viral load had a great concordance with the Abbott M2000 assay.•m-PIMA was efficient to detect and quantify HIV-2.•m-PIMA can been a good option to detect patients failing ART. A new point-of-care (POC) HIV virus load technology has been recently developed and designed to be utilized in decentralized settings. Alere Technologies GmbH*, Germany, developed the mPIMA HIV-1/2 VL plasma test which uses real time PCR technology with 50 μl and a turnaround time of one hour. Analyze the performance of mPIMA to detect and quantify HIV-1 and HIV-2 and compare with Abbott M2000 assay fooling patients HIV-1 failing ARV therapy. In this study we evaluate the mPIMA HIV-1/2 VL plasma test using 413 specimens from 270 patients failing ARV therapy, and compared its performance with Abbott RealTime HIV-1 Viral Load assay on the m2000 system. In addition, were determined VL in plasma specimens obtained from HIV-2 infected patients. The results strongly indicate that mPIMA HIV-1/2 VL plasma test can determine HIV-1 with concordance of 88.9 % (95 % CI 85.4–91.7) the reference test when 1000 HIV-1 VL threshold was used as WHO cutoff to identify therapy failure. The overall correlation between HIV-1 VL was 0928 (Pearson correlation coefficient of Linear regression) and the Bland-Altman showed a mean difference of -0.20 Log cp/mL between the two technology. mPIMA HIV-1/2 VL plasma test was also able to measure HIV-2 viral load in 16 specimens from Guinea-Bissau HIV-1/HIV-2 positive samples. These data support the use of mPIMA HIV-1/2 VL plasma test to follow up patients and select patients failing ART, guiding immediate clinical decisions such as adherence counseling or ART regimen switch during the patient consultation.
ISSN:1386-6532
1873-5967
DOI:10.1016/j.jcv.2019.104212