Evidence map›Paper›PMID 21255386›Full record

ArticleJournal of translational medicine2011

Replicative phenotyping adds value to genotypic resistance testing in heavily pre-treated HIV-infected individuals--the Swiss HIV Cohort Study.

Jan Fehr, Tracy R Glass, Séverine Louvel, François Hamy, Hans H Hirsch, Viktor von Wyl, Jürg Böni, Sabine Yerly, Philippe Bürgisser, Matthias Cavassini and 10 more

Abstract readEvaluation StudyMulticenter Study
In one paragraph

Article in Journal of translational medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Article
  2. Article
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

20 authors.

Jan FehrDivision of Infectious Diseases & Hospital Epidemiology, University Hospital of Basel, Petersgraben 4, CH-4031 Basel, Switzerland.
Tracy R Glass
Séverine Louvel
François Hamy
Hans H Hirsch
Viktor von Wyl
Jürg Böni
Sabine Yerly
Philippe Bürgisser
Matthias Cavassini
Christoph A Fux
Bernard Hirschel
Pietro Vernazza
Gladys Martinetti
Enos Bernasconi
Huldrych F Günthard
Manuel Battegay
Heiner C Bucher
Thomas Klimkait
Swiss HIV Cohort Study

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundReplicative phenotypic HIV resistance testing (rPRT) uses recombinant infectious virus to measure viral replication in the presence of antiretroviral drugs. Due to its high sensitivity of detection of viral minorities and its dissecting power for complex viral resistance patterns and mixed virus populations rPRT might help to improve HIV resistance diagnostics, particularly for patients with multiple drug failures. The aim was to investigate whether the addition of rPRT to genotypic resistance testing (GRT) compared to GRT alone is beneficial for obtaining a virological response in heavily pre-treated HIV-infected patients.

methodsPatients with resistance tests between 2002 and 2006 were followed within the Swiss HIV Cohort Study (SHCS). We assessed patients' virological success after their antiretroviral therapy was switched following resistance testing. Multilevel logistic regression models with SHCS centre as a random effect were used to investigate the association between the type of resistance test and virological response (HIV-1 RNA <50 copies/mL or ≥1.5 log reduction).

resultsOf 1158 individuals with resistance tests 221 with GRT+rPRT and 937 with GRT were eligible for analysis. Overall virological response rates were 85.1% for GRT+rPRT and 81.4% for GRT. In the subgroup of patients with >2 previous failures, the odds ratio (OR) for virological response of GRT+rPRT compared to GRT was 1.45 (95% CI 1.00-2.09). Multivariate analyses indicate a significant improvement with GRT+rPRT compared to GRT alone (OR 1.68, 95% CI 1.31-2.15).

conclusionsIn heavily pre-treated patients rPRT-based resistance information adds benefit, contributing to a higher rate of treatment success.

Indexed as

AdultAnti-HIV AgentsCohort StudiesDose-Response Relationship, DrugDrug Resistance, ViralFemaleGenotypeHIV-1HIV InfectionsHumansMaleMicrobial Sensitivity TestsMiddle AgedPhenotypePredictive Value of TestsPrognosisAnti-HIV Agents

Identifiers

PMID21255386
PMCPMC3032678

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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.