HIV Drug Resistance Patterns and Characteristics Associated with Clinically Significant Drug Resistance among Children with Virologic Failure on Antiretroviral Treatment in Kenya: Findings from the Opt4Kids Randomized Controlled Trial

Abuogi, L.; Oyaro, P.; Wakjira, G.; Thomas, K.K.; Scallon, A.J.; Mukui, I.; Chohan, B.H.; Brown, E.; Karauki, E.; Yongo, N.; Ahmed, B.; Hassan, S.A.; Wagude, J.; Kinywa, E.; Otieno, L.; Kingwara, L.; Oyaro, B.; Frenkel, L.M.; John-Stewart, G.; Patel, R.C. HIV Drug Resistance Patterns and Characteristics Associated with Clinically Significant Drug Resistance among Children with Virologic Failure on Antiretroviral Treatment in Kenya: Findings from the Opt4Kids Randomized Controlled Trial. Viruses 2023, 15, 2083. Abuogi, L.; Oyaro, P.; Wakjira, G.; Thomas, K.K.; Scallon, A.J.; Mukui, I.; Chohan, B.H.; Brown, E.; Karauki, E.; Yongo, N.; Ahmed, B.; Hassan, S.A.; Wagude, J.; Kinywa, E.; Otieno, L.; Kingwara, L.; Oyaro, B.; Frenkel, L.M.; John-Stewart, G.; Patel, R.C. HIV Drug Resistance Patterns and Characteristics Associated with Clinically Significant Drug Resistance among Children with Virologic Failure on Antiretroviral Treatment in Kenya: Findings from the Opt4Kids Randomized Controlled Trial. Viruses 2023, 15, 2083.

Abstract

Increasing HIV drug resistance (DR) among children with HIV (CHIV) on antiretroviral treatment (ART) is concerning. CHIV ages 1-14 years enrolled March 2019 to December 2020 from five facilities in Kisumu County, Kenya were included. Children were randomized 1:1 to control (standard-of-care) or intervention (point-of-care viral load (POC VL) testing every three months with targeted genotypic drug resistance testing (DRT) for VF (> 1000 copies/ml)). A multidisciplinary committee reviewed CHIV with DRT results and offered treatment recommendations. We describe DR mutations and present logistic regression models to identify factors associated with clinically significant DR. We enrolled 704 children in the study; median age was 9 years (interquartile range (IQR) 7,12), 344 (49%) were female and median time on ART was 5 years (IQR 3, 8). During the study period, 106 (15%) children had DRT results (84 intervention and 22 control). DRT detected mutations associate with DR in all participants tested, with 93 (88%) having major mutations, including 51 (54%) with dual class resistance. A history of VF in prior 2 years (adjusted odds ratio (aOR) 11.1; 95% confidence interval (CI) 6.3, 20.0) and less than 2 years on ART at enrollment (aOR 2.2; 95% CI 1.1, 4.4) were associated with increased odds of major DR. DR is highly prevalent among CHIV on ART with VF in Kenya. Factors associated with drug resistance may be used to determine which children should be prioritized for DRT.

Keywords

HIV; children; drug resistance; virologic failure

Subject

Medicine and Pharmacology, Immunology and Allergy

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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