Pharmacogenetics of glatiramer acetate therapy for multiple sclerosis reveals drug-response markers

Details

Serval ID
serval:BIB_E4DC65D8539C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Pharmacogenetics of glatiramer acetate therapy for multiple sclerosis reveals drug-response markers
Journal
Pharmacogenetics and Genomics
Author(s)
Grossman  I., Avidan  N., Singer  C., Goldstaub  D., Hayardeny  L., Eyal  E., Ben-Asher  E., Paperna  T., Pe'er  I., Lancet  D., Beckmann  J. S., Miller  A.
ISSN
1744-6872 (Print)
Publication state
Published
Issued date
08/2007
Volume
17
Number
8
Pages
657-66
Notes
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't --- Old month value: Aug
Abstract
Genetic-based optimization of treatment prescription is becoming a central research focus in the management of chronic diseases, such as multiple sclerosis, which incur a prolonged drug-regimen adjustment. This study was aimed to identify genetic markers that can predict response to glatiramer acetate (Copaxone) immunotherapy for relapsing multiple sclerosis. For this purpose, we genotyped fractional cohorts of two glatiramer acetate clinical trials for HLA-DRB1*1501 and 61 single nucleotide polymorphisms within a total of 27 candidate genes. Statistical analyses included single nucleotide polymorphism-by-single nucleotide polymorphism and haplotype tests of drug-by-genotype effects in drug-treated versus placebo-treated groups.We report the detection of a statistically significant association between glatiramer acetate response and a single nucleotide polymorphism in a T-cell receptor beta (TRB@) variant replicated in the two independent cohorts (odds ratio=6.85). Findings in the Cathepsin S (CTSS) gene (P=0.049 corrected for all single nucleotide polymorphisms and definitions tested, odds ratio=11.59) in one of the cohorts indicate a possible association that needs to be further investigated. Additionally, we recorded nominally significant associations of response with five other genes, MBP, CD86, FAS, IL1R1 and IL12RB2, which are likely to be involved in glatiramer acetate's mode-of-action, both directly and indirectly. Each of these association signals in and of itself is consistent with the no-association null-hypothesis, but the number of detected associations is surprising vis-a-vis chance expectation. Moreover, the restriction of these associations to the glatiramer acetate-treated group, rather than the placebo group, clearly demonstrates drug-specific genetic effects. These findings provide additional progress toward development of pharmacogenetics-based personalized treatment for multiple sclerosis.
Keywords
Confidence Intervals Genetic Markers Genetic Predisposition to Disease HLA-DR Antigens Haplotypes Humans Logistic Models Multiple Sclerosis, Relapsing-Remitting/*drug therapy/*genetics Odds Ratio Peptides/*therapeutic use Pharmacogenetics Placebos Polymorphism, Single Nucleotide/genetics
Pubmed
Web of science
Create date
25/01/2008 16:18
Last modification date
20/08/2019 16:08
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