Pharmacokinetic Drug Interactions Involving Vortioxetine (Lu AA21004), a Multimodal Antidepressant

Abstract

BACKGROUND AND OBJECTIVE The identification and quantification of potential drug-drug interactions is important for avoiding or minimizing the interaction-induced adverse events associated with specific drug combinations. Clinical studies in healthy subjects were performed to evaluate potential pharmacokinetic interactions between vortioxetine (Lu AA21004) and co-administered agents, including fluconazole (cytochrome P450 [CYP] 2C9, CYP2C19 and CYP3A inhibitor), ketoconazole (CYP3A and P-glycoprotein inhibitor), rifampicin (CYP inducer), bupropion (CYP2D6 inhibitor and CYP2B6 substrate), ethinyl estradiol/levonorgestrel (CYP3A substrates) and omeprazole (CYP2C19 substrate and inhibitor). METHODS The ratio of central values of the test treatment to the reference treatment for relevant parameters (e.g., area under the plasma concentration-time curve [AUC] and maximum plasma concentration [C max]) was used to assess pharmacokinetic interactions. RESULTS Co-administration of vortioxetine had no effect on the AUC or C max of ethinyl estradiol/levonorgestrel or 5'-hydroxyomeprazole, or the AUC of bupropion; the 90 % confidence intervals for these ratios of central values were within 80-125 %. Steady-state AUC and C max of vortioxetine increased when co-administered with bupropion (128 and 114 %, respectively), fluconazole (46 and 15 %, respectively) and ketoconazole (30 and 26 %, respectively), and decreased by 72 and 51 %, respectively, when vortioxetine was co-administered with rifampicin. Concomitant therapy was generally well tolerated; most adverse events were mild or moderate in intensity. CONCLUSION Dosage adjustment may be required when vortioxetine is co-administered with bupropion or rifampicin.

DOI: 10.1007/s40261-013-0117-6

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@inproceedings{Chen2013PharmacokineticDI, title={Pharmacokinetic Drug Interactions Involving Vortioxetine (Lu AA21004), a Multimodal Antidepressant}, author={Grace Chen and Ronald D. Lee and Astrid-Maria H\ojer and Jeppe Klint Buchbjerg and Michael Serenko and Zhen Zhao}, booktitle={Clinical drug investigation}, year={2013} }