Effect of Multiple Doses of Modafinil on the Pharmacokinetics of Single Dose Lorlatinib in Healthy Participants

Author(s):  
2012 ◽  
Vol 56 (6) ◽  
pp. 3086-3091 ◽  
Author(s):  
Benjamin Miller ◽  
Ellie Hershberger ◽  
David Benziger ◽  
MyMy Trinh ◽  
Ian Friedland

ABSTRACTThe pharmacokinetics and safety of ceftolozane, a novel cephalosporin, and tazobactam, a β-lactamase inhibitor, alone and in combination as a 2:1 ratio in single doses of up to 2,000 and 1,000 mg of ceftolozane and tazobactam, respectively, and multiple doses of up to 3,000 and 1,500 mg of ceftolozane and tazobactam, respectively, per day were evaluated in healthy adult subjects. In part 1, groups of six subjects each received single ascending doses of ceftolozane, tazobactam, and ceftolozane-tazobactam in a within-cohort crossover design. In part 2, groups of 5 or 10 subjects each received multiple doses of ceftolozane, tazobactam, or ceftolozane-tazobactam for 10 days. After a single dose of ceftolozane alone, the ranges of mean values for half-life (2.48 to 2.64 h), the total clearance (4.35 to 6.01 liters/h), and the volume of distribution at steady state (11.0 to 14.1 liters) were consistent across dose levels and similar to those observed when ceftolozane was coadministered with tazobactam. Mean values after multiple doses for ceftolozane alone and ceftolozane-tazobactam were similar to those seen following a single dose. The pharmacokinetics of the dosing regimens evaluated were dose proportional and linear. Ceftolozane-tazobactam was well tolerated and systemic adverse events were uncommon. Mild infusion-related adverse events were the most commonly observed following multiple-dose administration. Adverse events were not dose related, and no dose-limiting toxicity was identified.


2011 ◽  
Vol 58 (6) ◽  
pp. 581-588 ◽  
Author(s):  
Kenneth Todd Moore ◽  
Alexei Nikolaevich Plotnikov ◽  
An Thyssen ◽  
Nicole Vaccaro ◽  
Jay Ariyawansa ◽  
...  
Keyword(s):  

1963 ◽  
Vol 18 (4) ◽  
pp. 824-828
Author(s):  
Joseph Samachson

Three patients received single doses of Sr85 and one Ca45 as well, the plasma levels, and urinary and fecal excretions being followed for 3–4 weeks. Calculations were then made to predict plasma levels and excretions following the administration of 12 small doses to each patient, and values predicted were compared with those found. Changes in calcium metabolism limited the predictive value of single-dose data, but when variations in urinary calcium could be allowed for, predicted and found values agreed well. The factors involved in extrapolation from single to multiple doses are discussed. Within certain limitations, the extrapolation appears valid and may be applicable to the problems involved in the investigation of Sr90 as well, although the fact that the latter is ingested over long periods of time makes comparison with single-dose data more hazardous. Submitted on December 21, 1962


2014 ◽  
Vol 8 (1) ◽  
pp. e2613 ◽  
Author(s):  
Eltahir A. G. Khalil ◽  
Teklu Weldegebreal ◽  
Brima M. Younis ◽  
Raymond Omollo ◽  
Ahmed M. Musa ◽  
...  

2011 ◽  
Vol 51 (1) ◽  
pp. 102-106 ◽  
Author(s):  
Duncan B. Richards ◽  
Rebecca Spence ◽  
Arun Mandagere ◽  
Linda S. Henderson ◽  
Mindy H. Magee

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


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