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Retrospective study of the impact of pharmacogenetic variants on paclitaxel toxicity and survival in patients with ovarian cancer
University of South Denmark.
Linköping University, Department of Medical and Health Sciences, Clinical Pharmacology. Linköping University, Faculty of Health Sciences.
University of South Denmark.
Odense University Hospital.
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2011 (English)In: European Journal of Clinical Pharmacology, ISSN 0031-6970, E-ISSN 1432-1041, Vol. 67, no 7, 693-700 p.Article in journal (Refereed) Published
Abstract [en]

Paclitaxel has a broad spectrum of anti-tumor activity and is useful in the treatment of ovarian, breast, and lung cancer. Paclitaxel is metabolized in the liver by CYP2C8 and CYP3A4 and transported by P-glycoprotein. The dose-limiting toxicities are neuropathy and neutropenia, but the interindividual variability in toxicity and also survival is large. The main purpose of this study was to investigate the impact of genetic variants in CYP2C8 and ABCB1 on toxicity and survival. The 182 patients previously treated for ovarian cancer with carboplatin and paclitaxel in either the AGO-OVAR-9 or the NSGO-OC9804 trial in Denmark or Sweden were eligible for this study. Genotyping was carried out on formalin-fixed tissue. The patients toxicity profiles and survival data were derived from retrospective data. CYP2C8*3, ABCB1 C1236T, G2677T/A, and C3435T were chosen a priori for primary analysis; a host of other variants were entered into an exploratory analysis. Clinical data and tissue were available from a total of 119 patients. Twenty-two single nucleotide polymorphisms (SNPs) in 10 genes were determined. Toxicity registration was available from 710 treatment cycles. In the primary analysis, no statistically significant correlation was found between CYP2C8*3, ABCB1 C1236T, G2677T/A, and C3435T and neutropenia, sensoric neuropathy, and overall survival. CYP2C8*3 and the ABCB1 SNPs C1236T, G2677T/A, and C3435T were not statistically significantly correlated to overall survival, sensoric neuropathy, and neutropenia in 119 patients treated for ovarian cancer with paclitaxel/carboplatin.

Place, publisher, year, edition, pages
Springer Science Business Media , 2011. Vol. 67, no 7, 693-700 p.
Keyword [en]
Paclitaxel; CYP2C8; ABCB1; Ovarian cancer; Neutropenia; Neuropathy
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-69835DOI: 10.1007/s00228-011-1007-6ISI: 000291602700006OAI: diva2:433466
Available from: 2011-08-10 Created: 2011-08-08 Last updated: 2011-08-10

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Green, HenrikPeterson, Curt
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Clinical PharmacologyFaculty of Health SciencesDepartment of Oncology UHL
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ReferencesLink to record
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