Safety and efficacy of lamivudine/dolutegravir vs. bictegravir/emtricitabine/tenofovir alafenamide in antiretroviral-naive adults with HIV-1 infection in Shanghai, China: a single-centre retrospective study

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Abstract
Introduction. Lamivudine plus dolutegravir (3TC/DTG) and bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) regimens are commonly used as first-line treatments for people living with human immunodeficiency virus (HIV) (PLWH) worldwide. Gap Statement. There are limited comparative data on the antiviral activity and safety between these regimens in ART-naive PLWH, particularly in China, where the 3TC/DTG regimen was integrated into first-line therapy in 2021 and gained broader adoption after its inclusion in the National Health Insurance in 2022. Aims. This study aims to provide real-world evidence comparing the 3TC/DTG regimen to the B/F/TAF regimen in ART-naive PLWH in China. Methodology. This retrospective study enrolled PLWH initiating ART with either 3TC/DTG or B/F/TAF in Shanghai from January 2020 to January 2023. Demographic characteristics and clinical information were collected and compared for each patient. Results. A total of 380 eligible, ART-naive PLWH were included, with 190 patients in the 3TC/DTG group and 190 patients in the B/F/TAF group. Following the initiation of ART, most patients (94.1 and 89.3% for 3TC/DTG and B/F/TAF groups, respectively) achieved viral suppression (Conclusions. 3TC/DTG demonstrates similar antiviral efficacy to B/F/TAF and does not significantly impact liver and kidney functions. Patients receiving 3TC/DTG showed higher plasma HDL-C levels compared with those on B/F/TAF, which confer long-term clinical benefits in reducing cardiovascular risk.
Funding Information
  • Shanghai Science and Technology Development Foundation (20MC1920100)
  • Shanghai Municipal Health Commission (shslczdzk01102)

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