Document Detail


Population pharmacokinetics of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (Triapine®) in cancer patients.
MedLine Citation:
PMID:  20440618     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The purpose of this study was to develop a population pharmacokinetic (PK) model for 3-AP, to evaluate the effect of ABCB1 polymorphisms on the pharmacokinetic profile of 3-AP, and to assess the relationship between 3AP disposition and patient covariates.
METHODS: A total of 40 patients with advanced cancer from two phase 1 studies were included in the population PK model building. Patients received 3-AP 25-105 mg/m(2) IV on day 1. 3-AP plasma and erythrocyte levels were sampled at 10 timepoints over a 24-h period and measured by a validated HPLC method. Data were analyzed by a nonlinear mixed-effects modeling approach using the NONMEM system.
RESULTS: 3-AP pharmacokinetics were described as a 3-compartment model with first-order elimination, with one compartment representing the plasma and another representing erythrocyte concentrations. Gender was associated with volume of distribution, in which women had a lower V2. The number of cycles administered was associated with clearance; those with decreased clearance were more likely to receive less than 2 cycles before going off study.
CONCLUSION: This study suggests that monitoring 3-AP plasma concentrations in the first cycle and dose adjustment in those with decreased clearance may be helpful in decreasing toxicity associated with the 3-AP.
Authors:
Jill Kolesar; Richard C Brundage; Marcia Pomplun; Dona Alberti; Kyle Holen; Anne Traynor; Percy Ivy; George Wilding
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-05-04
Journal Detail:
Title:  Cancer chemotherapy and pharmacology     Volume:  67     ISSN:  1432-0843     ISO Abbreviation:  Cancer Chemother. Pharmacol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-28     Completed Date:  2011-04-11     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  7806519     Medline TA:  Cancer Chemother Pharmacol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  393-400     Citation Subset:  IM    
Affiliation:
Paul P. Carbone Comprehensive Cancer Center, University of Wisconsin, 600 Highland Avenue, K4/554, Madison, WI 53792, USA. jmkolesar@pharmacy.wisc.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Blood / metabolism
Body Surface Area
Clinical Trials, Phase I as Topic
Computer Simulation
Erythrocytes / metabolism
Female
Genotype
Humans
Male
Metabolic Clearance Rate
Middle Aged
Models, Biological*
Models, Statistical
Neoplasms / drug therapy,  metabolism*
P-Glycoprotein / genetics
Pyridines / administration & dosage,  blood,  metabolism,  pharmacokinetics*
Sex Characteristics
Thiosemicarbazones / administration & dosage,  blood,  metabolism,  pharmacokinetics*
Grant Support
ID/Acronym/Agency:
1ULRR025011//PHS HHS; U01 CA062491-06/CA/NCI NIH HHS; U01 CA062491-07/CA/NCI NIH HHS; U01 CA062491-07S1/CA/NCI NIH HHS; U01 CA062491-07S2/CA/NCI NIH HHS; U01 CA062491-08/CA/NCI NIH HHS; U01 CA062491-09/CA/NCI NIH HHS; U01 CA062491-10/CA/NCI NIH HHS; U01 CA062491-11/CA/NCI NIH HHS; U01 CA062491-12/CA/NCI NIH HHS; U01 CA062491-13/CA/NCI NIH HHS; U01 CA062491-14/CA/NCI NIH HHS; U01 CA062491-15/CA/NCI NIH HHS; U01 CA062491-16/CA/NCI NIH HHS; U01 CA062491-17/CA/NCI NIH HHS; U01 CA062491-18/CA/NCI NIH HHS; U01CA062491/CA/NCI NIH HHS; UL1 RR025011-01/RR/NCRR NIH HHS; UL1 RR025011-02/RR/NCRR NIH HHS; UL1 RR025011-03/RR/NCRR NIH HHS; UL1 RR025011-03S1/RR/NCRR NIH HHS; UL1 RR025011-03S2/RR/NCRR NIH HHS; UL1 RR025011-04/RR/NCRR NIH HHS; UL1 RR025011-05/RR/NCRR NIH HHS
Chemical
Reg. No./Substance:
0/ABCB1 protein, human; 0/P-Glycoprotein; 0/Pyridines; 0/Thiosemicarbazones; 143621-35-6/3-aminopyridine-2-carboxaldehyde thiosemicarbazone
Comments/Corrections

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