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Resistance to antiretroviral therapy (ART) in patients with HIV/AIDS after therapeutic failure / Resistencia a la terapia antirretroviral (TAR) en pacientes VIH/SIDA en fracaso terapéutico
Agudelo-Rojas, Lina María; Coral-Orbes, María Victoria; Galindo-Orrego, Ximena; Mueses-Marín, Héctor Fabio; Galindo-Quintero, Jaime.
  • Agudelo-Rojas, Lina María; s.af
  • Coral-Orbes, María Victoria; s.af
  • Galindo-Orrego, Ximena; s.af
  • Mueses-Marín, Héctor Fabio; s.af
  • Galindo-Quintero, Jaime; Corporación de Lucha contra el SIDA. Cali. CO
Acta méd. colomb ; 44(4): 3-10, Oct.-Dec. 2019. tab, graf
Article in English | LILACS, COLNAL | ID: biblio-1124055
ABSTRACT
Abstract

Introduction:

HIV replication and the suboptimal use of antiretrovirals are directly related to the appearance of resistant mutations. The objective of this study was to describe the resistance mutations (RMs) present in HIV infected patients who experienced antiretroviral treatment failure between 2002 and 2015 in Cali, Colombia.

Method:

403 genotypes of adult patients with HIV/AIDS who received ART and experienced virological failure were analyzed. With informed consent, resistance genotype testing was performed using TRUGENE HIV-1; the RMs were defined according to the International AIDS Society-2015 list. The sample was subdivided by periods (2002-2006 vs 2007-2015) and early versus late genotyping. Mutations with ≥15 points to some ARV were considered, according to the Stanford HIV database.

Results:

comparing the periods, there were more RMs for non-nucleoside reverse transcriptase inhibitors (NNRTIs) in 2007-2015 than in 2002-2006 (85% vs. 60%, respectively, p<0.0001), but protease inhibitors were less affected in 2007-2015 than in 2002-2006 (11% vs. 29%, respectively, p < 0.001). The M184V and K103 N mutations were the most frequent RMs in reverse transcriptase (RT) for NRTIs and NNRTIs, respectively. A total of 67.5% were early genotypes. There was a higher prevalence of certain RMs in late genotypes compared to early ones, mainly for RMs to PIs (D30N, L90M) and NRTIs (M41L, D67N, K70R, L210W); but a lower prevalence of RMs to NNRTIs (Y181C).

Conclusion:

the late resistance genotypes were associated with higher levels of resistance mutations, mainly to the NNRTI and NRTI families, limiting their use as a rescue therapy alternative. (Acta Med Colomb 2019; 44. DOIhttps//doi.org/10.36104/amc.2019.1546).
RESUMEN
Resumen

Introducción:

la replicación del VIH y la utilización subóptima de antirretrovirales, se relacionan directamente con la aparición de mutaciones de resistencias. el objetivo del estudio fue describir las mutaciones de resistencia (mdr) presentes en pacientes infectados por vih que fracasaron a la terapia antirretroviral entre 2002 y 2015 en cali, colombia.

Metodología:

se analizaron 403 genotipos de pacientes adultos con VIH/SIDA que recibían TAR y experimentaban fracaso virológico. Bajo consentimiento informado, se llevó a cabo la prueba de genotipo de resistências usando TRUGENE HIV-1, se definieron las MDR según el listado de International AIDS Society-2015. Se subdividió la muestra por periodos (2002-2006 vs 2007-2015) y momento de genotipificación temprano versus tardio. Mutaciones con ≥15 puntos a algún ARV fueron consideradas, según la HIV-database de Stanford.

Resultados:

comparando los periodos, en 2007-2015 hubo mayor afectación de MDR para los inhibidores no nucleosídicos de la transcriptasa reversa (ITINAN) frente a 2002-2006 (85% vs. 60%, respectivamente, p<0.0001), pero menor afectación en 2007-2015 frente a 2002-2006 para inhibidores de la proteasa (11% vs. 29%, respectivamente p < 0.001). Mutaciones M184V y K103N fueron las MDR más frecuentes en la retrotranscriptasa (RT) para ITIAN e ITINAN, respectivamente. El 67.5% fueron genotipos considerados tempranos. Mayor prevalencia de ciertas MDR cuando el genotipo fue tardío frente al temprano, principalmente para MDR a IP (D30N, L90M), ITIAN (M41L, D67N, K70R, L210W), pero menor para MDR a ITINAN (Y181C).

Conclusion:

los estudios de genotipo de resistencias realizados tardiamente, se asociaron con mayores niveles de mutaciones que confieren resistencias, principalmente a las familias de ITINAN e ITIAN, limitando su uso como alternativa terapéutica de rescate. (Acta Med Colomb 2019; 44. DOIhttps//doi.org/10.36104/amc.2019.1546).
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: HIV Type of study: Risk factors Limits: Animals / Humans / Male Country/Region as subject: South America / Colombia Language: English Journal: Acta méd. colomb Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Colombia Institution/Affiliation country: Corporación de Lucha contra el SIDA/CO

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Full text: Available Index: LILACS (Americas) Main subject: HIV Type of study: Risk factors Limits: Animals / Humans / Male Country/Region as subject: South America / Colombia Language: English Journal: Acta méd. colomb Journal subject: Medicine Year: 2019 Type: Article Affiliation country: Colombia Institution/Affiliation country: Corporación de Lucha contra el SIDA/CO