ArticleInfection2014
Efficacy of raltegravir switching strategies in HIV-infected patients with suppressed viraemia according to the genotypic sensitivity score.
Article in Infection, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Effectiveness of integrase strand transfer inhibitors among treatment-experienced patients in a clinical setting.AIDS (London, England) · 2019Observational
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13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeThe lack of antiretroviral (ARV) backbone activity associated with raltegravir has been proposed as the main explanation for virological relapse observed in patients with undetectable viraemia who are switched from a ritonavir-boosted protease inhibitor (PI) to raltegravir. However ARV activity remains difficult to assess in this context. The aim of our study was to precisely assess the ARV backbone activity in patients with undetectable viraemia who underwent raltegravir switching strategies and to evaluate the efficacy of such switching strategies based on the genotypic sensitivity score (GSS).
methodsPatients with a plasma human immunodeficiency virus type 1 (HIV-1) RNA level of <50 copies/mL on a stable two ARV-class regimen were enrolled if they switched one of their ARV drugs to raltegravir 400 mg twice daily. The GSS was calculated using a genotyping test performed on the HIV-1 RNA of the last plasma measurement with a HIV-1 RNA level of >50 copies/mL before the switch and on the results of all previous genotyping tests. The primary endpoint was the proportion of patients with a plasma HIV-1 RNA level of <50 copies/mL at week 24.
resultsFifty-six patients were enrolled in this study. The proportion of patients with a plasma HIV-1 RNA level of <50 copies/mL at week 24 was 92.9 % (range 83.0-97.2 %) in the intent-to-treat analysis and 98.1 % (90.0-99.7 %) in per-protocol analysis. When the backbone was fully active, the proportion was 100.0 % (86.7-100.0 %) at week 24 and week 48 in the per-protocol analysis. We observed a decrease in plasma total cholesterol and triglycerides of -12.7 % (p = 0.005) and -26.5 % (p = 0.001), respectively.
conclusionsRaltegravir switching strategies are effective when the associated backbone is fully active according to the GSS. In the context of undetectable viraemia, where ARV activity remains difficult to assess, the determination of the GSS requires the entire ARV history of the patient and all previous HIV-RNA genotyping test results.
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