scholarly journals P2290Physiologically-based pharmacokinetic (PBPK) model predicted versus observed effect of Child Pugh mild and moderate hepatic impairment on betrixaban pharmacokinetics

2018 ◽  
Vol 39 (suppl_1) ◽  
Author(s):  
J M Leeds ◽  
K Derr ◽  
A Ke ◽  
K Rowland Yeo ◽  
O Bandman ◽  
...  
2021 ◽  
Vol 65 (5) ◽  
Author(s):  
Huiping Huang ◽  
Helin Xie ◽  
Nupur Chaphekar ◽  
Ruichao Xu ◽  
Raman Venkataramanan ◽  
...  

ABSTRACT Isavuconazole (ISA) is an azole antifungal used in the treatment of invasive aspergillosis and mucormycosis. Patients with mild or moderate hepatic impairment have lower clearance (CL) than the healthy population. Currently, there are no data on ISA in patients with severe hepatic impairment (Child-Pugh class C). The purposes of this study were to build a physiologically based pharmacokinetic (PBPK) model to describe the pharmacokinetics (PK) of intravenous ISA and to predict changes in ISA disposition in different patient populations and in patients with hepatic impairment so as to guide personalized dosing. By incorporating the systemic and drug-specific parameters of ISA, the model was initially developed in a healthy population and was validated with 10 independent PK profiles obtained from healthy subjects and from patients with normal liver function. The results showed satisfactory predictive capacity; most of the relative predictive errors were within ±30% for the area under the concentration-time curve (AUC) and the maximum concentration of the drug in serum (Cmax). The observed concentration-time profiles of ISA in plasma were well described by the model-predicted profiles. The model adequately predicted the reduced CL of ISA in patients with mild or moderate hepatic impairment. Furthermore, the model predicted a decrease in CL of about 60% in patients with severe hepatic impairment. Therefore, we recommend reducing the dose by 50% in patients with severe hepatic impairment. The model also predicted differences in the PK of ISA between Caucasian and Asian populations, with a Chinese/Caucasian CL ratio of 0.67. The PBPK model of ISA that was developed provides a reasonable approach for optimizing the dosage regimen in different ethnic populations and in patients with severe hepatic impairment.


2007 ◽  
Vol 13 ◽  
pp. S104 ◽  
Author(s):  
N. Rao ◽  
P. Chaikin ◽  
B. Dvorchik ◽  
N. Sussman ◽  
A. Mori ◽  
...  

1995 ◽  
Vol 29 (Supplement 2) ◽  
pp. 49-61 ◽  
Author(s):  
Walid M. Awni ◽  
John H. Cavanaugh ◽  
Rene A. Braeckman ◽  
Sou-yie (Maury) Chu ◽  
Karen J. Patterson ◽  
...  

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
V Perera ◽  
G Abelian ◽  
D Li ◽  
Z Wang ◽  
L Zhang ◽  
...  

Abstract Background According to the scientific evidence accumulated to date (ie, genetic, epidemiological, preclinical, clinical), the modulation of Factor XI (FXI) function may provide a novel mechanism for systemic anticoagulation without increasing the risk of clinically significant bleeding in a variety of conditions predisposing patients to a high risk of thrombotic or bleeding events. BMS-986177/JNJ-70033093 (BMS-177/JNJ-3093) is a small molecule that inhibits the active form of FXI (FXIa) with high affinity and selectivity. Depending on the indication, BMS-177/JNJ-3093 may provide benefit to patients as add-on or potentially replacement therapy to the current standard of care antithrombotic agents. Patients with hepatic impairment may have an increased risk of bleeding when using existing antithrombotic agents and therefore may benefit from drugs with an improved safety profile. Purpose To assess the effect of mild or moderate hepatic impairment on the pharmacokinetic (PK) properties of BMS-177/JNJ-3093. Methods This was a multicenter, open-label, non-randomized, single-dose study. A single 60-mg oral dose of BMS-177/JNJ-3093 was administered to 9 participants with mild hepatic impairment (Child-Pugh class A), 8 participants with moderate hepatic impairment (Child-Pugh class B), and 9 healthy participants with normal hepatic function. Healthy participants were matched to participants with hepatic impairment in each Child-Pugh class with regard to body weight. To assess the effects of hepatic impairment on BMS-177/JNJ-3093 PK, an analysis of variance was performed on the natural log-transformed Cmax, AUC(INF), and AUC(0-T) with hepatic function group as a fixed effect. Results BMS-177/JNJ-3093 was well tolerated when administered as an oral dose of 60 mg in participants with mild or moderate hepatic impairment and healthy participants with normal hepatic function. There were no deaths, serious adverse events (AEs), severe AEs, bleeding AEs, or discontinuations due to an AE reported during the study. The geometric mean ratios (GMRs) (90% CI) comparing mild hepatic impairment to normal hepatic function were 1.180 (0.735, 1.895) and 1.168 (0.725, 1.882) for total BMS-177/JNJ-3093 maximum concentration (Cmax) and area under the curve from time 0 to infinity (AUC(INF)), respectively. The GMRs (90% CI) comparing moderate hepatic impairment to normal hepatic function were 1.140 (0.699, 1.857) and 0.996 (0.609, 1.628) for total BMS-177/JNJ-3093 Cmax and AUC(INF), respectively. Overall, levels of activated partial thromboplastin time (aPTT) increased in an exposure-related manner following single oral doses of 60 mg BMS-177/JNJ-3093 in all groups. Conclusion BMS-177/JNJ-3093 was well tolerated in the normal healthy participants and those with mild or moderate hepatic impairment. The observed changes indicate that a dose adjustment in these populations may not be necessary. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): This work was sponsored by Bristol-Myers Squibb and Janssen Research & Development, LLC


2019 ◽  
Vol 37 (1) ◽  
pp. 253-264 ◽  
Author(s):  
Akifumi Kurata ◽  
Takafumi Yoshida ◽  
Megumi Inoue ◽  
Tomoko Ishizuka ◽  
Takafumi Nakatsu ◽  
...  

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