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Updated: Jun 27, 2025

Rapid Screening of HIV Reverse Transcriptase and Integrase Inhibitors
Published on: April 9, 2014
Risk of Cardiovascular Events in People with HIV (PWH) Treated with Integrase Strand-Transfer Inhibitors: The Debate
Nicolò Corti1,2, Barbara Menzaghi3, Giancarlo Orofino4
1Infectious Diseases Unit, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy.
Insights
People with HIV (PWH) on integrase strand-transfer inhibitors (INSTIs) showed a slight, though not statistically significant, increase in cardiovascular disease (CVD) risk. Further research is needed to fully understand INSTIs
Area of Science:
- Cardiology
- Infectious Diseases
- Pharmacology
Background:
- Cardiovascular disease (CVD) is a significant cause of morbidity and mortality in people with HIV (PWH).
- Antiretroviral therapies (ARTs), particularly integrase strand-transfer inhibitors (INSTIs), are suspected contributors to increased CVD risk in PWH, but their role requires further elucidation.
Purpose of the Study:
- To evaluate the association between INSTIs and the risk of developing cardiovascular disease (CVD) in people with HIV (PWH).
- To compare CVD incidence in PWH treated with INSTIs versus those on protease inhibitors (PIs) or non-nucleoside reverse transcriptase inhibitors (NNRTIs).
Main Methods:
- A multicenter, observational study involving 4984 PWH.
- Comparison of CVD incidence between INSTI-exposed (n=2357) and other ART-exposed (n=2599) groups.
- Analysis considered demographic and clinical characteristics, with follow-up periods of 2 years and complete study duration.
Main Results:
- Twenty-four cases of CVD occurred in the INSTI group, compared to 12 cases in the other ART groups.
- Univariate and multivariate analyses indicated a trend towards increased CVD risk in PWH exposed to INSTIs within the 2-year follow-up.
- This observed trend did not reach statistical significance.
Conclusions:
- The study suggests a potential, minimal role for INSTIs in increasing CVD risk among PWH.
- The hypothesis that INSTIs may contribute to CVD risk in PWH remains open and warrants further investigation.
Abstract:
Cardiovascular disease (CVD) is common in people with HIV (PWH), and has great impact in terms of morbidity and mortality. Several intertwined mechanisms are believed to play a role in determining the increased risk of CVD, including the effect of certain antiretrovirals; among these, the role of integrase strand-transfer inhibitors (INSTIs) is yet to be fully elucidated. We conducted a multicenter, observational study comprising 4984 PWH evaluating the antiretroviral therapy (ART)-related nature of CVD in real life settings, both in naïve vs. treatment-experienced people. A comparison was conducted between INSTIs vs. either protease inhibitors (PIs) or non-nucleoside reverse transcriptase inhibitors (NNRTIs) considering demographic, baseline clinical characteristics, incidence of CVD in both 2-year and complete follow-up periods. Among 2357 PWH exposed to INSTIs, 24 people experienced CVD; the corresponding figure was 12 cases out of 2599 PWH exposed to other ART classes. At univariate and multivariate analysis, a tendency towards an increased risk of CVD was observed in the 2-year follow-up period in PWH exposed to INSTIs in the absence, however, of statistical significance. These findings leave open the hypothesis that INSTIs may play a role, albeit minimal, in determining an increased risk of CVD in PWH.
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