Abstract
Objectives: Describe the population characteristics of liver chemistries, the incidence and patterns of liver chemistry abnormalities, and the longitudinal behavior of alanine aminotransferase in mild-to-moderate asthmatic patients. Methods: We undertook a retrospective analysis of comparator arm data from a long-term safety surveillance study of a leukotriene inhibitor. Results: Several liver chemistry elevations relative to the upper limit of normal were observed. We identified three other types of outliers: liver chemistry elevations relative to screening values, persistent liver chemistry elevations, and unusually variable alanine aminotranferase. Conclusions: In the absence of any common drug therapy, there are considerable within-population differences of liver chemistry profiles including substantial outliers. This ordinary variability should be taken into account in the design of clinical trials and analysis of drug-induced liver injury therein.
Keywords: Alanine aminotransferase, aspartate aminotransferase, bilirubin, alkaline phosphatase, gamma-glutaminyl transferase, observational study
Current Drug Safety
Title: Clinical Observation of Liver Chemistry Abnormalities in Asthmatics
Volume: 4 Issue: 3
Author(s): David A. Katz, Jeffrey D. Isaacson, Lixin Han, Jeffrey F. Drajesk, Gail M. Comer and Margo E. Heath-Chiozzi
Affiliation:
Keywords: Alanine aminotransferase, aspartate aminotransferase, bilirubin, alkaline phosphatase, gamma-glutaminyl transferase, observational study
Abstract: Objectives: Describe the population characteristics of liver chemistries, the incidence and patterns of liver chemistry abnormalities, and the longitudinal behavior of alanine aminotransferase in mild-to-moderate asthmatic patients. Methods: We undertook a retrospective analysis of comparator arm data from a long-term safety surveillance study of a leukotriene inhibitor. Results: Several liver chemistry elevations relative to the upper limit of normal were observed. We identified three other types of outliers: liver chemistry elevations relative to screening values, persistent liver chemistry elevations, and unusually variable alanine aminotranferase. Conclusions: In the absence of any common drug therapy, there are considerable within-population differences of liver chemistry profiles including substantial outliers. This ordinary variability should be taken into account in the design of clinical trials and analysis of drug-induced liver injury therein.
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Cite this article as:
Katz A. David, Isaacson D. Jeffrey, Han Lixin, Drajesk F. Jeffrey, Comer M. Gail and Heath-Chiozzi E. Margo, Clinical Observation of Liver Chemistry Abnormalities in Asthmatics, Current Drug Safety 2009; 4 (3) . https://dx.doi.org/10.2174/157488609789006930
DOI https://dx.doi.org/10.2174/157488609789006930 |
Print ISSN 1574-8863 |
Publisher Name Bentham Science Publisher |
Online ISSN 2212-3911 |
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