Evidence map›Paper›PMID 25187636›Full record

ArticleJournal of clinical microbiology2014

Improved single-copy assays for quantification of persistent HIV-1 viremia in patients on suppressive antiretroviral therapy.

Anthony R Cillo, David Vagratian, Margaret A Bedison, Elizabeth M Anderson, Mary F Kearney, Elizabeth Fyne, Dianna Koontz, John M Coffin, Michael Piatak, John W Mellors

Registry-linked trialOpen access · bronzeAbstract readEvaluation 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. It is linked to trial NCT03692611 (Evaluation of the Efficacy and Mechanisms of a Novel Intervention for Chronic Pain Tailored to People Living With HIV), which is not on this map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
4.4field-weighted citation impact, top 5% of its field
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.

NCT03692611 nacompletednot on this mapstarted 2019, after this paper: background citation

Evaluation of the Efficacy and Mechanisms of a Novel Intervention for Chronic Pain Tailored to People Living With HIV

TypeinterventionalSponsorUniversity of PittsburghRan2019 to 2025Enrolled278ConditionsChronic PainArmsSkills TO Manage Pain (STOMP), Comparison group
3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 111 citations in OpenAlex.

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  5. Randomized Trial of Ruxolitinib in Antiretroviral-Treated Adults With Human Immunodeficiency Virus.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
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  8. Antiretroviral Therapy Reduces T-cell Activation and Immune Exhaustion Markers in Human Immunodeficiency Virus Controllers.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
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35 more citing papers are in PubMed but not listed here.

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

10 authors at 4 institutions in 1 country.

Anthony R CilloUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA arc85@pitt.edu jwm1@pitt.edu.
David VagratianUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Margaret A BedisonUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Elizabeth M AndersonHIV Drug Resistance Program, NCI-Frederick, Frederick, Maryland, USA.
Mary F KearneyHIV Drug Resistance Program, NCI-Frederick, Frederick, Maryland, USA.
Elizabeth FyneUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Dianna KoontzUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA.
John M CoffinTufts University, Boston, Massachusetts, USA.
Michael PiatakLeidos Biomedical Research, Inc., Frederick, Maryland, USA.
John W MellorsUniversity of Pittsburgh, Pittsburgh, Pennsylvania, USA arc85@pitt.edu jwm1@pitt.edu.
University of Pittsburgh · USFrederick National Laboratory for Cancer Research · USLeidos (United States) · USTufts University · US

Funding

Retrovirus EvolutionR37CA089441 · NCI · TUFTS UNIVERSITY BOSTON · PI COFFIN, JOHN M · 2006 to 2015
$6.5M
PITT AIDS RESEARCH TRAINING PROGRAMT32AI065380 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BARRATT-BOYES, SIMON M · 2005 to 2020
$3.2M
Simplified Assays of Latent But Inducible HIV-1 ReservoirsR21AI113102 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MELLORS, JOHN W · 2014 to 2015
$433k
NCI NIH HHS R37 CA089441NIAID NIH HHS 5 T32 AI065380-08NIAID NIH HHS R21 AI113102NIAID NIH HHS T32 AI065380
6 · The paper itself

Abstract

A quantitative real-time PCR (qRT-PCR) assay with single-copy sensitivity targeting HIV-1 gag RNA (the gag single-copy assay [gSCA]) has been used widely to quantify plasma viremia below the limit of detection of clinical assays in patients on effective antiretroviral therapy (ART), but viral RNA in 15 to 30% of samples amplifies inefficiently because of primer/probe mismatches. We sought to develop improved single-copy assays with increased sensitivity by improving nucleic acid recovery, designing qRT-PCR primers and a probe for a highly conserved region of integrase in the HIV-1 pol gene (the integrase single-copy assay [iSCA]), and increasing the plasma volume tested (Mega-iSCA). We evaluated gSCA versus iSCA in paired plasma samples from 10 consecutive patients with viremia of >1,000 copies/ml and 25 consecutive patients on suppressive ART. Three of 10 viremic samples amplified inefficiently with gSCA compared to the Roche Cobas Ampliprep/TaqMan 2.0, whereas all 10 samples amplified efficiently with iSCA. Among 25 samples from patients on suppressive ART, 8 of 12 samples that were negative for HIV-1 RNA by gSCA had detectable HIV-1 RNA by iSCA, and iSCA detected 3-fold or higher HIV-1 RNA levels compared to gSCA in 10 of 25 samples. Large-volume plasma samples (>20 ml) from 7 patients were assayed using Mega-iSCA, and HIV-1 RNA was quantifiable in 6, including 4 of 5 that were negative by standard-volume iSCA. These improved assays with superior sensitivity will be useful for evaluating whether in vivo interventions can reduce plasma viremia and for assessing relationships between residual viremia and other virologic parameters, including the inducible proviral reservoir.

Indexed as

Anti-Retroviral AgentsDNA PrimersHIV-1HIV InfectionsHumansOligonucleotide ProbesReal-Time Polymerase Chain ReactionRNA, ViralSensitivity and SpecificityViral LoadViremiaAnti-Retroviral AgentsDNA PrimersOligonucleotide ProbesRNA, Viral

Identifiers

PMID25187636
PMCPMC4313209
OpenAlexW2004471105

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.