Title : Pharmacokinetics of Deutetrabenazine and Tetrabenazine: Dose Proportionality and Food Effect.

Pub. Date : 2021 Jun

PMID : 33038289






3 Functional Relationships(s)
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1 Both studies confirmed longer half-lives for active metabolites and lower peak-to-trough fluctuations for the sum of the metabolites (total [alpha+beta]-HTBZ) following deutetrabenazine compared with tetrabenazine (3- to 4-fold and 11-fold, respectively) in steady-state conditions. Tetrabenazine amyloid beta precursor protein Homo sapiens
2 Deutetrabenazine doses estimated to provide total (alpha+beta)-HTBZ exposure comparable to tetrabenazine 25 mg were 11.4-13.2 mg. Food had no effect on exposure to total (alpha+beta)-HTBZ, as measured by AUC. Tetrabenazine amyloid beta precursor protein Homo sapiens
3 Although the total (alpha+beta)-HTBZ Cmax of deutetrabenazine was increased by 50% in the presence of food, it remained lower than that of tetrabenazine. Tetrabenazine amyloid beta precursor protein Homo sapiens