ArticleJournal of acquired immune deficiency syndromes (1999)2025
Resistance to Dolutegravir in Treatment-experienced Patients in South Africa: A Retrospective Cohort Study.
Article in Journal of acquired immune deficiency syndromes (1999), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- HIV drug resistance and treatment success in the Republic of Congo: Implications for optimized treatment.HIV medicine · 2026Article
- Article
- Effect of the Scale-Up of Dolutegravir on Retention in Care, Risk of Developing Tuberculosis and Viral Load Suppression Among People Living With HIV: Analysis of Routine HIV Clinical Data in Rural KwaZulu-Natal, South Africa (2019-23).Open forum infectious diseases · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundDolutegravir resistance has been reported more frequently in patients with prior treatment experience compared to those on dolutegravir in first-line antiretroviral therapy (ART). The widespread use of dolutegravir in resource-limited programmatic settings might facilitate the emergence of resistance. Data on the prevalence of dolutegravir resistance from programmatic settings in Africa are scarce.
methodsThis retrospective observational cohort study assessed dolutegravir resistance in routine care settings of the Western Cape provincial public healthcare sector program between February 2021 and June 2024. Treatment-experienced adults who developed virologic failure (two HIV-1 RNA ≥1000 copies/mL), who had received dolutegravir-based ART for >24 months, were eligible for genotypic antiretroviral resistance testing (GART). Drug resistance mutations (DRMs) and resistance levels were classified using the Stanford database.
resultsAmong 99 eligible patients, 76 had GART performed, and 68 had successful sequences. Among these 68, 43 (63%) had dolutegravir DRMs with: 1 potential low, 1 low, 15 intermediate, and 26 high resistance levels. The median time on dolutegravir-based ART was 24 months (IQR, 23-31). Of the 43 patients with dolutegravir DRMs, 21 (49%) were receiving zidovudine-lamivudine-dolutegravir and 19 (44%) were receiving tenofovir-lamivudine-dolutegravir; 42/43 had prior ART experience.
conclusionsOver 60% of patients with prior treatment experience who had been on dolutegravir-based ART for over two years and experienced virologic failure had intermediate or high level dolutegravir resistance. This suggests that criteria for GART used are too stringent, which has resource implications in programmatic settings where access to resistance testing for individual management is limited.
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Registered trials
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