2012•JAIDS Journal of Acquired Immune Deficiency SyndromesOpen access
Steady-State Pharmacokinetics of Lopinavir Plus Ritonavir When Administered Under Different Meal Conditions in HIV-Infected Ugandan Adults
Mohammed Lamorde, Pauline Byakika‐Kibwika, Marta Boffito, Lillian Nabukeera, Jonathan Mayito, Jasper Ogwal‐Okeng, John Tjia, David Back, Saye Khoo, Máirín Ryan, Concepta Merry
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Abstract
We investigated the effect of food on the steady-state pharmacokinetics of lopinavir and ritonavir in 12 Ugandan patients receiving lopinavir coformulated with ritonavir (LPV/r) tablets using a crossover design. Intensive pharmacokinetic sampling was performed 7 days apart after LPV/r dosing under moderate fat, high fat, and fasted meal conditions. Lopinavir and ritonavir concentrations were determined by liquid chromatography and tandem mass spectrometry. Compared with the fasted state, a high fat meal reduced lopinavir and ritonavir area under the curve by 14% and 29%, respectively. With a moderate fat meal, area under the curve for both drugs was similar to the fasted state.