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Inicio Enfermedades Infecciosas y Microbiología Clínica Darunavir en la coinfección por VIH/VHB y/o VHC
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Vol. 26. Issue S10.
Darunavir
Pages 37-42 (October 2008)
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Vol. 26. Issue S10.
Darunavir
Pages 37-42 (October 2008)
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Darunavir en la coinfección por VIH/VHB y/o VHC
Darunavir in HIV/HVC/HVB coinfection
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2403
Antonio Rivero
Corresponding author
ariveror@gmail.com

Correspondencia: Unidad de Gestión Clínica de Enfermedades Infecciosas. Hospital Universitario Reina Sofía. Avda. Menéndez Pidal, s/n. 14004 Córdoba. España.
, Ángela Camacho, Inés Pérez-Camacho, Julián Torre-Cisneros
Unidad de Gestión Clínica de Enfermedades Infecciosas. Hospital Universitario Reina Sofía. Córdoba. España
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Article information

Darunavir/ritonavir (DRV/r) está indicado en combinación con otros antirretrovirales para el tratamiento de la infección por el virus de la inmunodeficiencia humana (VIH) en pacientes pretratados. En pacientes coinfectados por virus de la hepatitis B (VHB) o C (VHC), el grado de respuesta virológica a DRV/r no está afectada y la incidencia de efectos adversos, salvo en lo referente a la hepatotoxicidad, no es superior a la de sujetos no coinfectados. El 0,5% de los pacientes que reciben combinaciones de fármacos que incluyen DRV/r desarrolla hepatotoxicidad, que resulta más frecuente en pacientes con hepatitis crónica por VHB o VHC. Por dicho motivo puede ser aconsejable monitorizar en pacientes coinfectados (VHB/VHC), tal como debe hacerse con todos los IP boosted con ritonavir, los valores de AST/ALT. DRV se metaboliza en el hígado. Los parámetros farmacocinéticos de DRV son similares en sujetos con función hepática normal que en pacientes con deterioro leve (child-pugh clase A) o moderado (child-pugh clase B) de la función hepática. El efecto del deterioro grave de la función hepática en la farmacocinética de DRV, no se ha evaluado. DRV no requiere ajuste de dosis en pacientes con deterioro de la función hepática leve o moderado. No hay datos concernientes al uso de DRV en pacientes con deterioro grave de la función hepática, por lo que su uso en estos pacientes no se encuentra recomendado.

Palabras clave:
Darunavir
VIH-1
Virus de la hepatitis C
Virus de la hepatitis B

Darunavir/ritonavir is indicated in combination with other antiretroviral drugs for the treatment of HIV-1 infection in pre-treated adult patients. In hepatitis B or C co-infected patients, the virological response rate to darunavir/ritonavir appeared to be unaffected and, except for increased liver enzymes, the incidence of adverse events was not higher than in patients without co-infection. Drug-induced hepatitis has been reported in 0.5% of patients receiving combination therapy with darunavir/ritonavir. Patients with pre-existing liver dysfunction, including chronic active hepatitis B or C, have an increased risk for liver function abnormalities including severe hepatic adverse events. Therefore AST/ALT monitoring should be considered in patients with underlying chronic hepatitis, (HVB/HCV) like it is recommended in all patients receiving boosted PIS. Darunavir is primarily metabolized by the liver. The steady-state pharmacokinetic parameters of darunavir are similar in patients with normal liver function, mild hepatic impairment (Child-Pugh Class A), and moderate hepatic impairment (Child-Pugh Class B). The effect of severe hepatic impairment on the pharmacokinetics of darunavir has not been evaluated. No dose adjustment is required in patients with mild or moderate hepatic impairment. There are no data on the use of darunavir in patients with severe hepatic impairment and consequently this drug is not recommended in this group of patients.

Key words:
Darunavir
HIV-1
Hepatitis C Virus
Hepatitis B virus
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