SHCS

Swiss HIV Cohort Study

& Swiss Mother and Child HIV Cohort Study

Barceló et al., Pharmakokinetic analysis of elvitegravir and cobicistat

Barceló et al., Pharmakokinetic analysis of elvitegravir and cobicistat

12th May, 2016

Population pharmacokinetic analysis of elvitegravir and cobicistat in HIV-1-infected individuals. Journal of Antimicrobial Chemotherapy

Barceló et al. aimed to develop a population pharmacokinetic model for elvitegravir and cobicistat in a cohort of HIV-1-infected individuals. Concomitant administration of non-ritonavir-boosted atazanavir decreased elvitegravir clearance by 35%. Concomitant administration of non-ritonavir-boosted atazanavir and ritonavir-boosted darunavir decreased cobicistat clearance by 47% and 27%, respectively. A reduced elvitegravir dose of 85 mg co-administered with cobicistat and atazanavir produced a concentration-time course comparable to the standard regimen without atazanavir. None of the demographic and clinical covariates tested appeared to have a significant impact on elvitegravir and cobicistat elimination.

In conclusion, Elvitegravir and cobicistat pharmacokinetic variability appears to be mainly explained by drug-drug interactions that may be encountered in routine clinical practice.

PubMed

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