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Does Syphilis Increase the Risk of HIV-RNA Elevation >200 Copies/mL in HIV-Positive Patients Under Effective Antiretroviral Treatment? Data From the ICONA Cohort

Giacomelli, A; Cozzi-Lepri, A; Cingolani, A; Tavelli, A; Mazzotta, V; Tesoro, D; Bassetti, M; ... ICONA Foundation Study Group, .; + view all (2021) Does Syphilis Increase the Risk of HIV-RNA Elevation >200 Copies/mL in HIV-Positive Patients Under Effective Antiretroviral Treatment? Data From the ICONA Cohort. JAIDS Journal of Acquired Immune Deficiency Syndromes , 88 (2) pp. 132-137. 10.1097/QAI.0000000000002749. Green open access

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Abstract

BACKGROUND: To assess the impact of syphilis infection on the risk of HIV-RNA elevation in people living with HIV (PLWH) with current HIV-RNA ≤50 copies/mL. SETTING: The Italian Cohort Naïve Antiretrovirals (ICONA). METHODS: All PLWH (2009-2020) under antiretroviral treatment with at least 2 consecutive HIV-RNA values ≤50 copies/mL before the date of syphilis diagnosis and at least one HIV-RNA determination after the syphilis event were enrolled. A control group of PLWH without syphilis was matched for mode of HIV transmission. Outcomes were defined using the first HIV-RNA measure in the time window ranging between -2 and +6 months of the diagnosis/index date. The primary outcome used a single value>200 copies/mL to define HIV-RNA elevation associated with risk of transmission. The association between syphilis infection and the protocol defined outcome was evaluated using logistic regression analysis. RESULTS: Nine hundred and twenty-six PLWH with a syphilis event were enrolled and matched with a random sample of 1370 PLWH without syphilis. Eighteen of the 926 (1.9%) with syphilis had ≥1 HIV-RNA>200 copies/mL in the window vs. 29/1370 (2.1%) of the not exposed (p=0.77). In the multivariable analysis adjusted for age, year of diagnosis/index date and clinical site, syphilis infection was not associated with the risk of HIV-RNA >200 copies/mL [adjusted Odds Ratio 0.81; 95% confidence interval 0.43-1.52, p=0.508]. CONCLUSIONS: We did not find any evidence for an association between syphilis infection and viral elevation >200 copies/mL.

Type: Article
Title: Does Syphilis Increase the Risk of HIV-RNA Elevation >200 Copies/mL in HIV-Positive Patients Under Effective Antiretroviral Treatment? Data From the ICONA Cohort
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1097/QAI.0000000000002749
Publisher version: https://doi.org/10.1097/QAI.0000000000002749
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute for Global Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute for Global Health > Infection and Population Health
URI: https://discovery.ucl.ac.uk/id/eprint/10130928
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