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Efficacy and safety of darunavir/ritonavir at 48 weeks in treatment-naïve, HIV-1-infected adolescents: results from a phase 2 open-label trial (DIONE).

Flynn, Patricia and Komar, Svitlana and Blanche, Stephane and Giaquinto, Carlo and Noguera-Julian, Antoni and Welch, Steven and Lathouwers, Erkki and Van de Casteele, Tom and Kakuda, Thomas N and Opsomer, Magda (2014) Efficacy and safety of darunavir/ritonavir at 48 weeks in treatment-naïve, HIV-1-infected adolescents: results from a phase 2 open-label trial (DIONE). The Pediatric infectious disease journal, 33 (9). pp. 940-5. ISSN 1532-0987. This article is accessible to all HEFT staff and students via NICE journals and databases http://www.nice.org.uk/about/what-we-do/evidence-services/journals-and-databases by using their HEFT Athens login IDs

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Abstract

BACKGROUND

Twice-daily darunavir/ritonavir is indicated in treatment-experienced children (≥3 years). This study assessed once-daily administration in treatment-naïve adolescents.

METHODS

Phase 2, 48-week, open-label, single-arm study evaluating pharmacokinetics, safety and efficacy of once-daily darunavir/ritonavir 800/100 mg in treatment-naïve, HIV-1-infected adolescents (≥12 to <18 years, ≥40 kg) with zidovudine/lamivudine or abacavir/lamivudine.

RESULTS

Twelve patients (67% female; median 14.4 years) were enrolled. After 24 and 48 weeks, respectively, 11 of 12 (92%) and 10 of 12 (83%) patients achieved viral load <50 copies/mL (intent-to-treat time-to-loss of virologic response); all had ≥1 log10 drop in viral load versus baseline. Median CD4 cell count increased by 175 and 221 cells/mm (intent-to-treat-noncompleter = failure) after 24 and 48 weeks, respectively. Eighty-three percent of patients were adherent to darunavir/ritonavir. One patient was never suppressed and 1 patient rebounded. No patients developed darunavir resistance-associated mutations or lost phenotypic susceptibility to any commercially available protease inhibitor or any background nucleoside reverse transcriptase inhibitor. Eleven patients (92%) reported ≥1 adverse event (AE), considered in 2 patients to be at least possibly related to darunavir (gastrointestinal-related events and dizziness). Four patients had ≥1 serious AE. Three patients reported ≥1 grade 3/4 AE; no serious or grade 3/4 AEs were considered darunavir related. No patients discontinued because of AEs.

CONCLUSIONS

Over 48 weeks, once-daily darunavir/ritonavir 800/100 mg plus NRTIs was effective and well-tolerated for treatment of HIV-1-infected, antiretroviral-naïve adolescents (≥12 to <18 years). These findings support use of once-daily darunavir/ritonavir 800/100 mg in this population.

Item Type: Article
Additional Information: This article is accessible to all HEFT staff and students via NICE journals and databases http://www.nice.org.uk/about/what-we-do/evidence-services/journals-and-databases by using their HEFT Athens login IDs
Subjects: WC Communicabable diseases
WS Paediatrics. Child health
Divisions: Womens and Childrens > Paediatrics
Related URLs:
Depositing User: Mrs Yolande Brookes
Date Deposited: 22 Apr 2015 15:49
Last Modified: 22 Apr 2015 15:49
URI: http://www.repository.heartofengland.nhs.uk/id/eprint/861

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