Evidence map›Paper›PMID 24478482›Full record

ArticleJournal of clinical microbiology2014

Comparative performances of HIV-1 RNA load assays at low viral load levels: results of an international collaboration.

Luke C Swenson, Bryan Cobb, Anna Maria Geretti, P Richard Harrigan, Mario Poljak, Carole Seguin-Devaux, Chris Verhofstede, Marc Wirden, Alessandra Amendola, Jurg Boni and 12 more

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  13. Patterns of detectable viraemia among children and adults with HIV infection taking antiretroviral therapy in Zimbabwe.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors.

Luke C SwensonBC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.
Bryan Cobb
Anna Maria Geretti
P Richard Harrigan
Mario Poljak
Carole Seguin-Devaux
Chris Verhofstede
Marc Wirden
Alessandra Amendola
Jurg Boni
Thomas Bourlet
Jon B Huder
Jean-Claude Karasi
Snjezana Zidovec Lepej
Maja M Lunar
Odette Mukabayire
Rob Schuurman
Janez Tomazic
Kristel Van Laethem
Linos Vandekerckhove
Annemarie M J Wensing
International Viral Load Assay Collaboration

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low-level viremia during antiretroviral therapy and its accurate measurement are increasingly relevant. Here, we present an international collaboration of 4,221 paired blood plasma viral load (pVL) results from four commercial assays, emphasizing the data with low pVL. The assays compared were the Abbott RealTime assay, the Roche Amplicor assay, and the Roche TaqMan version 1 and version 2 assays. The correlation between the assays was 0.90 to 0.97. However, at a low pVL, the correlation fell to 0.45 to 0.85. The observed interassay concordance was higher when detectability was defined as 200 copies/ml than when it was defined as 50 copies/ml. A pVL of ∼100 to 125 copies/ml by the TaqMan version 1 and version 2 assays corresponded best to a 50-copies/ml threshold with the Amplicor assay. Correlation and concordance between the viral load assays were lower at a low pVL. Clear guidelines are needed on the clinical significance of low-level viremia.

Indexed as

HIV-1HIV InfectionsHumansInternational CooperationPlasmaRNA, ViralViral LoadRNA, Viral

Identifiers

PMID24478482
PMCPMC3911321

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.