Ontology highlight
ABSTRACT: Background
Medication adherence is known to challenge treatment of human immunodeficiency virus (HIV)/AIDS and multidrug-resistant tuberculosis (MDR-TB). We hypothesized that adherence using electronic dose monitoring (EDM) would identify an antiretroviral therapy (ART) adherence threshold for emergent ART resistance and predict treatment outcomes in patients with MDR-TB and HIV on ART and bedaquiline-containing TB regimens.Methods
A prospective cohort of adults with MDR-TB and HIV on ART and initiating MDR-TB treatment with bedaquiline were enrolled at a public hospital in KwaZulu-Natal, South Africa (PRAXIS Study). Participants received separate EDM devices that measure adherence to bedaquiline and ART (nevirapine or lopinavir/ritonavir). Adherence was calculated cumulatively over 6 months. Participants were followed through completion of MDR-TB treatment. HIV genome sequencing was performed at baseline and 2 and 6 months on samples with HIV RNA ≥1000 copies/mL.Results
From November 2016 through February 2018, 198 persons with MDR-TB and HIV were enrolled and followed (median, 17.2 months; interquartile range, 12.2-19.6). Eleven percent had baseline ART resistance mutations, and 7.5% developed emergent ART resistance at 6 months. ART adherence was independently associated with ART resistance and mortality. Modeling identified a significant (P < .001), linear association between ART adherence and emergent resistance, suggesting a strong association without a specific threshold.Conclusions
Our findings highlight the need for ART resistance testing, especially in patients with MDR-TB and HIV, which is currently not the standard of care in resource-limited settings. Despite short follow-up duration, reduced ART adherence was significantly associated with emergent resistance and increased mortality.Clinical trials registration
NCT03162107.
SUBMITTER: Bateman M
PROVIDER: S-EPMC9617578 | biostudies-literature | 2022 Oct
REPOSITORIES: biostudies-literature

Bateman Mark M Wolf Allison A Chimukangara Benjamin B Brust James C M JCM Lessells Richard R Amico Rivet R Boodhram Resha R Singh Nalini N Orrell Catherine C Friedland Gerald G Naidoo Kogieleum K Padayatchi Nesri N O'Donnell Max R MR
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 20221001 9
<h4>Background</h4>Medication adherence is known to challenge treatment of human immunodeficiency virus (HIV)/AIDS and multidrug-resistant tuberculosis (MDR-TB). We hypothesized that adherence using electronic dose monitoring (EDM) would identify an antiretroviral therapy (ART) adherence threshold for emergent ART resistance and predict treatment outcomes in patients with MDR-TB and HIV on ART and bedaquiline-containing TB regimens.<h4>Methods</h4>A prospective cohort of adults with MDR-TB and H ...[more]