ArticleJournal of clinical microbiology2015
Evaluation of the RealTime HIV-1, Xpert HIV-1, and Aptima HIV-1 Quant Dx Assays in Comparison to the NucliSens EasyQ HIV-1 v2.0 Assay for Quantification of HIV-1 Viral Load.
Article in Journal of clinical microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 4 of them syntheses that pooled it.
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Who cites it
31 citing papers in PubMed, 4 syntheses or guidelines pooled it, 51 citations in OpenAlex.
- Point-of-care viral load tests to detect high HIV viral load in people living with HIV/AIDS attending health facilities.The Cochrane database of systematic reviews · 2022Pooled it
- Performance of Cepheid Xpert HIV-1 viral load plasma assay to accurately detect treatment failure.AIDS (London, England) · 2019Pooled it
- Systematic review of the performance and clinical utility of point of care HIV-1 RNA testing for diagnosis and care.PloS one · 2019Pooled it
- Performance of the Xpert HIV-1 Viral Load Assay: a Systematic Review and Meta-analysis.Journal of clinical microbiology · 2018Pooled it
- Article
- Evaluating the accuracy of HIV-1 viral load testing using near point of care Xpert HIV-1 system at Solwezi general hospital, Zambia.BMC research notes · 2025Article
- A comparative performance evaluation of 12 HIV-1 viral load testing asssays: advancing the clinical application of HIV-1 nucleic acid testing in China.Microbiology spectrum · 2025Article
- Determinants of Direct Costs of HIV-1 Outpatient Care in Israel.International journal of environmental research and public health · 2022Article
- Article
- Article
- Aspects of Point-of-Care Diagnostics for Personalized Health Wellness.International journal of nanomedicine · 2021Review
- Performance evaluation of the Aptima HIV-1 RNA Quant assay on the Panther system using the standard and dilution protocols.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2020Article
- Performance Comparison of Xpert HIV-1 Viral Load Assay and Roche Taqman and Abbott M2000 RT in Bamako, Mali.Journal of AIDS & clinical research · 2020Article
- The dual-target approach in viral HIV-1 viremia testing: An added value to virological monitoring?PloS one · 2020Article
- Point-of-Care HIV Viral Load Testing: an Essential Tool for a Sustainable Global HIV/AIDS Response.Clinical microbiology reviews · 2019Review
- Utility Of POC Xpert HIV-1 Tests For Detection-Quantification Of Complex HIV Recombinants Using Dried Blood Spots From Kinshasa, D. R. Congo.Scientific reports · 2019Article
- Multicenter Evaluation of Two Next-Generation HIV-1 Quantitation Assays, Aptima Quant Dx and Cobas 6800, in Comparison to the RealTiJournal of clinical microbiology · 2018Article
- HIV prevention strategies and risk of infection: a model-based analysis.Epidemiology and infection · 2018Article
- Comparison of the Aptima HIV-1 Quant Dx assay with the COBAS AmpliPrep/COBAS TaqMan HIV-1 v2.0 Test for HIV-1 viral load quantification in plasma samples from HIV-1-infected patients.Health science reports · 2018Article
- Multidisease testing for HIV and TB using the GeneXpert platform: A feasibility study in rural Zimbabwe.PloS one · 2018Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
HIV-1 RNA monitoring, both before and during antiretroviral therapy, is an integral part of HIV management worldwide. Measurements of HIV-1 viral loads are expected to assess the copy numbers of all common HIV-1 subtypes accurately and to be equally sensitive at different viral loads. In this study, we compared for the first time the performance of the NucliSens v2.0, RealTime HIV-1, Aptima HIV-1 Quant Dx, and Xpert HIV-1 viral load assays. Plasma samples (n = 404) were selected on the basis of their NucliSens v2.0 viral load results and HIV-1 subtypes. Concordance, linear regression, and Bland-Altman plots were assessed, and mixed-model analysis was utilized to compare the analytical performance of the assays for different HIV-1 subtypes and for low and high HIV-1 copy numbers. Overall, high concordance (>83.89%), high correlation values (Pearson r values of >0.89), and good agreement were observed among all assays, although the Xpert and Aptima assays, which provided the most similar outputs (estimated mean viral loads of 2.67 log copies/ml [95% confidence interval [CI], 2.50 to 2.84 log copies/ml] and 2.68 log copies/ml [95% CI, 2.49 to 2.86 log copies/ml], respectively), correlated best with the RealTime assay (89.8% concordance, with Pearson r values of 0.97 to 0.98). These three assays exhibited greater precision than the NucliSens v2.0 assay. All assays were equally sensitive for subtype B and AG/G samples and for samples with viral loads of 1.60 to 3.00 log copies/ml. The NucliSens v2.0 assay underestimated A1 samples and those with viral loads of >3.00 log copies/ml. The RealTime assay tended to underquantify subtype C (compared to the Xpert and Aptima assays) and subtype A1 samples. The Xpert and Aptima assays were equally efficient for detection of all subtypes and viral loads, which renders these new assays most suitable for clinical HIV laboratories.
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