Early Outcomes of Darunavir- and/or Raltegravir-Based Antiretroviral Therapy in Children with Multidrug-Resistant HIV at a Pediatric Center in Botswana

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Abstract

Data on the use of ritonavir-boosted darunavir (DRV/r) and/or raltegravir (RAL) in resource-limited settings are rare and there is currently no published data regarding their use among African children. Botswana has recently made DRV/r and RAL available for patients failing second-line antiretroviral therapy (ART).

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Most cited references 11

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Protease inhibitor resistance in South African children with virologic failure.

Gert U Van Zyl, Lize van der Merwe, Mathilda Claassen … (2009)

In South Africa, first-line antiretroviral therapy for children younger than 3 years of age combines a protease inhibitor (PI) with 2 nucleoside reverse transcription inhibitors. In our study, some pediatric patients received ritonavir (RTV) as single PI (RTV-sPI) and others ritonavir-boosted lopinavir (LPV/r), which has a higher resistance barrier. We explored antiretroviral resistance mutations in pediatric patients failing PI-based antiretroviral therapy and the predictors of major PI resistance mutations (MPIRM) in these patients. We studied pediatric HIV patients at Tygerberg Academic Hospital experiencing virologic failure on a PI regimen. Mixed-effects linear- and mixed-effect logistic regression modeling, were used to explore predictors of MPIRM. MPIRM were found in 12 of 17 patients exposed to RTV-sPI compared with 1 of 13 patients treated with LPV/r. Exposure to RTV-sPI was significantly associated with MPIRM, with both exposure time and estimated failing time on RTV-sPI being significant positive predictors of MPIRM. Neither CD4 count, viral load, age at first visit nor receiving rifampin predicted MPIRM. RTV-sPI in infants and children poses a significant risk of MPIRM which is dependent on the exposure time and time failing while receiving the regimen.

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Decrease in hospitalization and mortality rates among children with perinatally acquired HIV type 1 infection receiving highly active antiretroviral therapy.

Maria Araneta, Rolando Viani, Walter Devillé … (2004)

The impact of highly active antiretroviral therapy (HAART) on human immunodeficiency virus type 1 (HIV-1) disease progression in perinatally infected children is not well documented. This study aims to identify the effect of evolving antiretroviral therapy on the immunologic and virologic status of and hospitalization and mortality rates among perinatally infected children. Children receiving outpatient care during 1994-2001 at 3 HIV clinics in southern California were observed longitudinally for CD4+ cell percentage, plasma HIV-1 RNA load, antiretroviral treatment, Pneumocystis jiroveci pneumonia (PCP) prophylaxis, and rate of hospital admissions. A total of 129 children were observed during the study period; 51% were girls, and 40.3% were Hispanic, 29.5% were African American, and 27.1% were white. The mean CD4+ cell percentage increased from 22.5% in 1994 to 31.2% in 2001 (P<.01), and the mean plasma HIV-1 RNA load decreased from 4.53 log10 copies/mL in 1996 to 3.27 log10 copies/mL in 2001 (P<.001). The use of HAART increased from 0% in 1994 to 93% in 2001 (P<.01), whereas the use of PCP prophylaxis decreased from 55% to 16% during this time (P<.001). The hospitalization rate decreased from 6.49 to 0.60 admissions per 100 person-years during 1994-2001 (P<.001). Acquired immunodeficiency syndrome-associated hospital admission rates decreased from 15.6% in 1994 to 0% in 2001 (P<.0001). Similarly, the admission rate for patients with Centers for Disease Control and Prevention category B decreased from 29.7% in 1994 to 5.9% in 2001 (P<.0001). Logistic regression analysis showed that CD4+ cell percentage and viral load were independently associated with risk of hospitalization. Survival was significantly longer for those who received HAART. HIV-1-associated mortality and hospitalization rates decreased significantly between 1994 and 2001 in perinatally infected children. This correlated with an increase in CD4+ cell percentage and a decrease in HIV-1 RNA load concurrently with the expanded use of HAART.

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Long-term efficacy and safety of raltegravir, etravirine, and darunavir/ritonavir in treatment-experienced patients: week 96 results from the ANRS 139 TRIO trial.

Patrick Yeni, Yazdan Yazdanpanah, Céline Colin … (2012)

Among 103 patients with multidrug-resistant HIV who initiated raltegravir, etravirine, and darunavir/ritonavir-containing regimen in the ANRS 139 TRIO trial, 100 participated in extended follow-up and continued study treatment until week 96. Among them, 87 (87%) received an optimized background therapy including either nucleoside reverse transcriptase inhibitors or enfuvirtide, they were 78 (78%) at week 96. At week 96, 88% achieved durable virologic response (<50 copies/mL). CD4 response was maintained (median change of +150 cells/mm(3)). No major toxicity was reported. This triple drug combination showed sustained efficacy and thus should be strongly considered for patients with multiclass-resistant virus.