Effect of polypharmacy on plasma bepridil concentration in patients with heart failure: a multicenter retrospective study

Autor: Yuki Asai, Hiroki Arihara, Saki Omote, Ena Tanio, Saena Yamashita, Takashi Higuchi, Ei Hashimoto, Momoko Yamada, Hinako Tsuji, Yoshihiro Kondo, Makoto Hayashi, Yoshiaki Yamamoto
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Pharmaceutical Health Care and Sciences, Vol 9, Iss 1, Pp 1-8 (2023)
Druh dokumentu: article
ISSN: 2055-0294
DOI: 10.1186/s40780-023-00278-x
Popis: Abstract Background Polypharmacy, defined as the concurrent use of over six drugs, is common in the treatment of heart failure (HF); however, unpredictable drug interactions with bepridil may occur. In this study, we have elucidated the influence of polypharmacy on plasma bepridil concentrations in patients with HF. Methods We conducted a multicenter retrospective study involving 359 adult patients with HF who received oral bepridil. Because QT prolongation is an adverse effect following plasma bepridil concentrations ≥800 ng/mL, the risk factors for patients achieving these concentrations at steady state were elucidated via multivariate logistic regression. The correlation between bepridil dose and plasma concentration was examined. The effect of polypharmacy on the value of the concentration-to-dose (C/D) ratio was investigated. Results A significant relationship was observed between bepridil dose and plasma concentration (p
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