High residual inflammation despite HIV viral suppression: Lessons learned from real-time adherence monitoring among people with HIV in Africa. Castillo-Mancilla, J., Musinguzi, N., Asiimwe, S., Siedner, M., Orrell, C., Bangsberg, D., & Haberer, J. HIV Medicine, 2021.
doi  abstract   bibtex   
Background: Lower antiretroviral therapy (ART) adherence is associated with higher systemic inflammation in virally suppressed people with HIV (PWH); however, previous studies have mostly relied on subjective adherence measures and have not assessed this association by disease stage upon ART initiation. Methods: In the Monitoring Early Treatment Adherence study, adherence was monitored electronically in real time among adult, treatment-naïve PWH in Uganda and South Africa who initiated tenofovir disoproxil fumarate/emtricitabine/efavirenz during early-stage (CD4 \textgreater 350 cells/µL) or late-stage (CD4 \textless 200 cells/µL) disease. Participants who achieved viral suppression (\textless 400 copies/mL) at 6 months and remained suppressed after 12 months were analysed. The association between average ART adherence and plasma concentrations of interleukin 6 (IL-6), soluble CD14 (sCD14) and D-dimer was evaluated using adjusted multivariable linear regression, stratified by disease stage. Results: In all, 488 PWH (61% women, mean age 35 years) were included in the analysis. Median ART adherence overall was 87%. In adjusted models, every 10% increase in average adherence was associated with a 3.0% decrease in IL-6 [95% confidence interval (CI): −5.9 to −0.01, p = 0.05] at 12 months. This relationship was observed in PWH with both early-stage (5.9%, 95% CI: −10.1 to −1.6, p = 0.009) and late-stage disease (3.7%, 95% CI: −7.2 to −0.2, p = 0.039). No significant associations were found with sCD14 or D-dimer. Conclusions: Objective ART adherence measurement was inversely associated with systemic inflammation in PWH who achieved viral suppression after ART initiation in sub-Saharan Africa, with a greater association in those with early-stage HIV. This finding underscores the importance of ART adherence beyond establishing viral suppression.
@article{Castillo-Mancilla2021,
abstract = {Background: Lower antiretroviral therapy (ART) adherence is associated with higher systemic inflammation in virally suppressed people with HIV (PWH); however, previous studies have mostly relied on subjective adherence measures and have not assessed this association by disease stage upon ART initiation. Methods: In the Monitoring Early Treatment Adherence study, adherence was monitored electronically in real time among adult, treatment-na{\"{i}}ve PWH in Uganda and South Africa who initiated tenofovir disoproxil fumarate/emtricitabine/efavirenz during early-stage (CD4 {\textgreater} 350 cells/µL) or late-stage (CD4 {\textless} 200 cells/µL) disease. Participants who achieved viral suppression ({\textless} 400 copies/mL) at 6 months and remained suppressed after 12 months were analysed. The association between average ART adherence and plasma concentrations of interleukin 6 (IL-6), soluble CD14 (sCD14) and D-dimer was evaluated using adjusted multivariable linear regression, stratified by disease stage. Results: In all, 488 PWH (61{\%} women, mean age 35 years) were included in the analysis. Median ART adherence overall was 87{\%}. In adjusted models, every 10{\%} increase in average adherence was associated with a 3.0{\%} decrease in IL-6 [95{\%} confidence interval (CI): −5.9 to −0.01, p = 0.05] at 12 months. This relationship was observed in PWH with both early-stage (5.9{\%}, 95{\%} CI: −10.1 to −1.6, p = 0.009) and late-stage disease (3.7{\%}, 95{\%} CI: −7.2 to −0.2, p = 0.039). No significant associations were found with sCD14 or D-dimer. Conclusions: Objective ART adherence measurement was inversely associated with systemic inflammation in PWH who achieved viral suppression after ART initiation in sub-Saharan Africa, with a greater association in those with early-stage HIV. This finding underscores the importance of ART adherence beyond establishing viral suppression.},
author = {Castillo-Mancilla, J.R. and Musinguzi, N. and Asiimwe, S. and Siedner, M.J. and Orrell, C. and Bangsberg, D.R. and Haberer, J.E.},
doi = {10.1111/hiv.13200},
journal = {HIV Medicine},
title = {{High residual inflammation despite HIV viral suppression: Lessons learned from real-time adherence monitoring among people with HIV in Africa}},
year = {2021}
}

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