Antiretroviral Therapy-associated Adverse Drug Reactions and their Effects on Virologic Failure- A Retrospective Cohort Study in Nigeria

Author(s): Isaac O. Abah*, Nondumiso B.Q. Ncube, Hazel A. Bradley, Oche O. AgbaJi, Phyllis Kanki.

Journal Name: Current HIV Research

Volume 16 , Issue 6 , 2018

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Graphical Abstract:


Background: Adverse drug reactions (ADRs) associated with antiretroviral therapy (ART) can rapidly reverse the gains of ART resulting in poor health outcomes. We need an improved understanding of specific ART-related ADRs that influence virologic outcomes.

Objective: To investigate the frequency of clinical ADRs and assess their effect on virologic failure in patients on ART.

Method: We described the prevalence of major clinical ADRs, and the association between specific ADRs and virologic failure in a clinic cohort of HIV-1 infected Nigerians aged ≥18 years, on firstline ART between June 2004 and February 2012. Multivariable logistic regression was run to identify predictors of virologic failure at 24 and 72 weeks of ART.

Results: Data of 12,115 patients with a median age of 34 (interquartile range: 29-41) years, and predominantly females (67%) were evaluated. Overall, 957 (7.9%) patients experienced at least one ADR during a median follow-up period of 4 years (interquartile range: 1-7). The three most prevalent ADRs were lipodystrophy (2.6%), anemia (1.9%), and skin rash (0.7%). Virologic failure rate was 36% and 34% at 24 and 72 weeks of ART, respectively. Anemia independently predicted the odds of virologic failure at 72 weeks of ART (adjusted odds ratio, 1.74; 95% CI: 1.2-2.51); adjusted for sex, age, pre-treatment CD4+ cell count, antiretroviral regimen, and medication refill adherence.

Conclusion: Antiretroviral therapy-associated anemia increases the likelihood of late virologic failure. We recommend routine monitoring of hemoglobin levels and prompt management of anemia in all patients on ART as a strategy to improve virologic success rates.

Keywords: Adverse drug reaction, antiretroviral therapy, anemia, toxicity, treatment failure, viral suppression.

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Article Details

Year: 2018
Page: [436 - 446]
Pages: 11
DOI: 10.2174/1389450120666190214144609

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