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Costs and cost-efficacy analysis of the 2016 GESIDA/Spanish AIDS National Plan recommended guidelines for initial antiretroviral therapy in HIV-infected adults / Análisis de costes y de coste/eficacia de las pautas recomendadas por GESIDA/Plan Nacional sobre el Sida en 2016 para el tratamiento antirretroviral inicial en adultos infectados por el VIH

Rivero, Antonio; Pérez Molina, José Antonio; Blasco, Antonio Javier; Arribas, José Ramón; Crespo, Manuel; Domingo, Pere; Estrada, Vicente; Iribarren, José Antonio; Knobel, Hernando; Lázaro, Pablo; López Aldeguer, José; Lozano, Fernando; Moreno, Santiago; Palacios, Rosario; Pineda, Juan Antonio; Pulido, Federico; Rubio, Rafael; Torre, Javier de la; Tuset, Montserrat; Gatell, Josep M.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 35(2): 88-99, feb. 2017. graf, tab
Artigo em Inglês | IBECS (Espanha) | ID: ibc-162048

INTRODUCTION:

GESIDA and the AIDS National Plan panel of experts suggest preferred (PR), alternative (AR), and other regimens (OR) for antiretroviral treatment (ART) as initial therapy in HIV-infected patients for the year 2016. The objective of this study is to evaluate the costs and the efficacy of initiating treatment with these regimens.

METHODS:

Economic assessment of costs and efficiency (cost/efficacy) based on decision tree analyses. Efficacy was defined as the probability of reporting a viral load <50copies/mL at week 48 in an intention-to-treat analysis. Cost of initiating treatment with an ART regimen was defined as the costs of ART and its consequences (adverse effects, changes of ART regimen, and drug resistance studies) during the first 48 weeks. The payer perspective (National Health System) was applied, only taking into account differential direct costs ART (official prices), management of adverse effects, studies of resistance, and HLA B*5701 testing. The setting is Spain and the costs correspond to those of 2016. A sensitivity deterministic analysis was conducted, building three scenarios for each regimen base case, most favourable, and least favourable.

RESULTS:

In the base case scenario, the cost of initiating treatment ranges from 4663 Euros for 3TC+LPV/r (OR) to 10,894 Euros for TDF/FTC+RAL (PR). The efficacy varies from 0.66 for ABC/3TC+ATV/r (AR) and ABC/3TC+LPV/r (OR), to 0.89 for TDF/FTC+DTG (PR) and TDF/FTC/EVG/COBI (AR). The efficiency, in terms of cost/efficacy, ranges from 5280 to 12,836 Euros per responder at 48 weeks, for 3TC+LPV/r (OR), and RAL+DRV/r (OR), respectively.

CONCLUSION:

Despite the overall most efficient regimen being 3TC+LPV/r (OR), among the PR and AR, the most efficient regimen was ABC/3TC/DTG (PR). Among the AR regimes, the most efficient was TDF/FTC/RPV
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