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Cancer Chemother Pharmacol. 2010 Jan;65(2):251-8. doi: 10.1007/s00280-009-1029-2.

Association of UGT2B7 and ABCB1 genotypes with morphine-induced adverse drug reactions in Japanese patients with cancer.

Author information

1
Department of Medical Oncology, Saitama International Medical Center-Comprehensive Cancer Center, Saitama Medical University, Yamane, Hidaka, Japan. fujitak@saitama-med.ac.jp

Abstract

PURPOSE:

To investigate the effects of genetic polymorphisms on morphine-induced adverse events in cancer patients.

METHODS:

We examined the relation of morphine-related adverse events to polymorphisms in UDP-glucuronosyltransferase (UGT) 2B7, ATP-binding cassette, sub-family B, number 1 (ABCB1), and μ-opioid receptor 1 genes in 32 Japanese cancer patients receiving oral controlled-release morphine sulfate tablets.

RESULTS:

The T/T genotype at 1236 or TT/TT diplotype at 2677 and 3435 in ABCB1 was associated with significantly lower frequency of fatigue (grades 1-3) (P = 0.012 or 0.011, Fisher’s exact test). The UGT2B7*2 genotype was associated with the frequency of nausea (grades 1-3) (P = 0.023). The frequency of nausea was higher in patients without UGT2B7*2 allele than others. The diplotype at 2677 and 3435 in ABCB1 was associated with the frequency of vomiting (grades 1-3) (P = 0.011). No patient whose diplotype was consisted of no GC allele at 2677 and 3435 suffered from vomiting.

CONCLUSION:

Our findings suggest that pharmacogenetics can be used to predict the risk of morphine-induced adverse events.

PMID:
19466410
DOI:
10.1007/s00280-009-1029-2
[Indexed for MEDLINE]

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