Erschienen in:
01.01.2010 | Original Article
Association of UGT2B7 and ABCB1 genotypes with morphine-induced adverse drug reactions in Japanese patients with cancer
verfasst von:
Ken-ichi Fujita, Yuichi Ando, Wataru Yamamoto, Toshimichi Miya, Hisashi Endo, Yu Sunakawa, Kazuhiro Araki, Keiji Kodama, Fumio Nagashima, Wataru Ichikawa, Masaru Narabayashi, Yuko Akiyama, Kaori Kawara, Mari Shiomi, Hiroyasu Ogata, Hiroyasu Iwasa, Yasushi Okazaki, Takashi Hirose, Yasutsuna Sasaki
Erschienen in:
Cancer Chemotherapy and Pharmacology
|
Ausgabe 2/2010
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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.