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Longitudinal Viral Load Outcomes of Adults with HIV after Detectable Viremia on Tenofovir, Lamivudine, and Dolutegravir
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9 01 2024
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Source: AIDS. 38(11):1714-1719
[PDF-300.49 KB]
Details:
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Alternative Title:AIDS
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Personal Author:
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Description:Background:
To inform optimal management of HIV viremia on TLD, we examined viral load (VL) outcomes of a large cohort of adult PLHIV on TLD in Nigeria.
Methods:
We conducted a retrospective study of adult PLHIV who had ≥1 VL after initiating TLD during January 2017–February 2023. VLs were categorized as undetectable (≤50 copies/mL), low low-level viremia (LLV, 51-199 copies/mL), high LLV (200-999 copies/mL), virologic non-suppression (VLNS, ≥1000 copies/mL), and virologic failure (VF, ≥2 consecutive VLNS results). Among patients with ≥2 VLs on TLD, we described how viremia changed over time and examined virologic outcomes after VF. We identified predictors of subsequent VLNS using mixed-effects logistic regression and conducted planned contrasts between levels of VL result and regimen types.
Results:
Analysis of 82,984 VL pairs from 47,531 patients demonstrated viral resuppression to ≤50 copies/mL at follow-up VL in 66.7% of those with initial low LLV, 59.1% of those with initial high LLV, and 48.9% of those with initial VLNS. Of 662 patients with a follow-up VL after VF, 94.6% stayed on TLD; of which 57.8% (359/621) were undetectable at next VL without regimen change. Previous low LLV (aOR 1.74, 1.56–1.93), high LLV (aOR 2.35, 2.08–2.65), and VLNS (aOR 6.45, 5.81–7.16) were associated with increasingly higher odds of subsequent VLNS, whereas a previously undetectable VL (aOR 1.08, 0.99–1.71) on TLD was not.
Conclusions:
Despite increased odds of subsequent VLNS, most PLHIV with detectable viremia on TLD, including those with VF, will resuppress to an undetectable VL without a regimen change.
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Pubmed ID:38870005
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Pubmed Central ID:PMC11293980
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Funding:
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Volume:38
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Issue:11
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