Trial reportJournal of acquired immune deficiency syndromes (1999)2018
Effects of Low- and High-Mineral Content Water on the Relative Bioavailability of a Coformulated Abacavir/Dolutegravir/Lamivudine Dispersible Tablet in Healthy Adults.
Trial report in Journal of acquired immune deficiency syndromes (1999), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
7 authors at 3 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe fixed-dose combination (FDC) tablet formulation of abacavir/dolutegravir/lamivudine is indicated for the treatment of HIV-1 infection in adults and pediatric patients weighing ≥40 kg. Alternative formulations with acceptable palatability and convenient dosing are needed for children who require smaller doses and have difficulty swallowing tablets.
settingA phase 1, open-label, randomized study was conducted in healthy adults to evaluate the relative bioavailability of a novel dispersible FDC tablet of abacavir 150 mg/dolutegravir 10 mg/lamivudine 75 mg administered under 4 different dosing conditions compared with dolutegravir plus abacavir/lamivudine nondispersible, film-coated tablets.
methodsThe test treatments were 4 dispersible FDC tablets reconstituted in water with high- or zero-mineral content and administered either immediately or after a 30-minute delay. The reference treatment was 4 nondispersible dolutegravir 10-mg tablets plus 1 nondispersible abacavir 600-mg/lamivudine 300-mg tablet administered with zero-mineral content water. The primary endpoints were area under the concentration-time curve from time 0 extrapolated to infinity and the maximum observed plasma concentration.
resultsFollowing administration of dispersible abacavir/dolutegravir/lamivudine, the relative bioavailability of dolutegravir was approximately 50% higher. Abacavir and lamivudine demonstrated bioequivalence when administered as the dispersible FDC tablet compared with coadministration of dolutegravir plus abacavir/lamivudine nondispersible, film-coated tablets. Neither the mineral content of the water nor dosing times affected the pharmacokinetics of individual components. The dispersible tablet was safe and well tolerated, and the palatability was acceptable.
conclusionsThese pharmacokinetic results support further development of a dispersible FDC tablet of abacavir/dolutegravir/lamivudine for future use in pediatric patients.
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