Publications by authors named "Thomas L'Yavanc"

Le 190 is a sexual health center in Paris founded in 2010. Its initial objective is to reduce the HIV/AIDS epidemic locally among men who have sex with men (MSM) through multidisciplinary support rooted in the reality of the sexuality and affective life of HIV-positive and HIV-negative MSM. Because of its constant concern for overall gay health and its community character, its activity has diversified and has enabled it to be a forerunner in both care and care pathways, on both the medical and regulatory aspects.

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Intramuscular long-acting antiretroviral drugs can improve adherence to lifelong antiretroviral treatment. Nevertheless, adipose tissue thickness and distribution play a critical role with injectable drugs. We describe a virological failure with cabotegravir and rilpivirine in a Black African woman with human immunodeficiency virus type 1 with gynoid fat distribution (ie, adipose tissue prevailing in the pelvis and hip area) and body mass index <30 kg/m.

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Background And Aims: Chemsex is a growing concern among men who have sex with men (MSM). COVID-19 lockdowns have had consequences on social and sexual interactions. We aimed to assess changes in chemsex practices during COVID-19 lockdown in France among MSM and factors associated with maintaining or increasing chemsex practice.

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Objectives: HIV self-tests (HSTs) have been deployed to reduce the burden of undiagnosed HIV infections in subpopulations undertested. We assumed that patients attending sexual health centres could themselves distribute HSTs in their close network. This study aimed to assess the proportion and the characteristics of the participants who distributed HSTs, as well as the characteristics of people who received HSTs.

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Objectives: Presence of baseline hepatitis C virus (HCV) resistance-associated substitutions (RASs) can impair treatment outcome of direct-acting antivirals. We investigated the prevalence of pre-treatment HCV resistance among recently HCV-infected men who have sex with men (MSM) with high risk behaviours, either human immunodeficiency virus (HIV) co-infected or at high risk of HIV acquisition and under pre-exposure prophylaxis (PrEP).

Methods: NS5A and NS3 fragments were deep sequenced on pre-treatment samples of 72 subjects using Illumina MiSeq paired-end sequencing technology.

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Introduction: Mixed hepatitis C virus (HCV) genotype (GT) infections are clinically important as different genotypes have varied sensitivities to direct-acting antivirals (DAAs). A high prevalence of mixed GT infections was observed in individuals who inject drugs and had multiple HCV exposures. The prevalence of mixed HCV GT infections in men who have sex with men (MSM) and high-risk behaviors was investigated by ultra-deep sequencing (UDS).

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Background: Increasing incidence of hepatitis C virus (HCV) infection in human immunodeficiency virus (HIV)-positive men having sex with men (MSM) has been described in recent years. Phylogenetic analyses of acute HCV infections were undertaken to characterize the dynamics during the epidemic in Paris, and associated sexually transmitted infections (STIs) were evaluated.

Methods: Sanger sequencing of polymerase gene was performed.

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