Prospective replication study implicates the catechol-O-methyltransferase Val158Met polymorphism as a biomarker for the response to morphine in patients with cancer

  • Authors:
    • Hiromichi Matsuoka
    • Chihiro Makimura
    • Atsuko Koyama
    • Yoshihiko Fujita
    • Junji Tsurutani
    • Kiyohiro Sakai
    • Ryo Sakamoto
    • Kazuto Nishio
    • Kazuhiko Nakagawa
  • View Affiliations

  • Published online on: August 8, 2017     https://doi.org/10.3892/br.2017.963
  • Pages: 380-384
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Abstract

Genetic differences in humans cause clinical difficulties in opioid treatment. Previous studies indicate that a single nucleotide polymorphism in the catechol‑O‑methyltransferase (COMT) gene (rs4680; p.Val158Met) may present as a predictive biomarker for the response to morphine treatment. In our previous pilot exploratory study, patients with a G/G genotype were demonstrated to require a higher dose of morphine, compared with patients with A/A and A/G genotypes. In the present study, the aim was to replicate the findings in an independent cohort of opioid‑treatment‑naïve patients exhibiting various types of cancer. This prospective study was conducted from 2011 to 2012 at the Kindai University Faculty of Medicine. A total of 50 patients with opioid‑treatment naïve and histologically confirmed malignant neoplasms who were scheduled to undergo opioid treatment were evaluated in the present study. Assessments were conducted pre‑treatment (day 1), post‑treatment (day 1), and one week after treatment (day 8). The required dose of morphine on day 1 was significantly higher for patients with the G/G genotype of COMT, compared with those with the A/A and A/G genotypes (P=0.013). The results of the present study provide additional evidence that the COMT genotype may be a predictive biomarker for the response to morphine treatment.
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October-2017
Volume 7 Issue 4

Print ISSN: 2049-9434
Online ISSN:2049-9442

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Spandidos Publications style
Matsuoka H, Makimura C, Koyama A, Fujita Y, Tsurutani J, Sakai K, Sakamoto R, Nishio K and Nakagawa K: Prospective replication study implicates the catechol-O-methyltransferase Val158Met polymorphism as a biomarker for the response to morphine in patients with cancer. Biomed Rep 7: 380-384, 2017
APA
Matsuoka, H., Makimura, C., Koyama, A., Fujita, Y., Tsurutani, J., Sakai, K. ... Nakagawa, K. (2017). Prospective replication study implicates the catechol-O-methyltransferase Val158Met polymorphism as a biomarker for the response to morphine in patients with cancer. Biomedical Reports, 7, 380-384. https://doi.org/10.3892/br.2017.963
MLA
Matsuoka, H., Makimura, C., Koyama, A., Fujita, Y., Tsurutani, J., Sakai, K., Sakamoto, R., Nishio, K., Nakagawa, K."Prospective replication study implicates the catechol-O-methyltransferase Val158Met polymorphism as a biomarker for the response to morphine in patients with cancer". Biomedical Reports 7.4 (2017): 380-384.
Chicago
Matsuoka, H., Makimura, C., Koyama, A., Fujita, Y., Tsurutani, J., Sakai, K., Sakamoto, R., Nishio, K., Nakagawa, K."Prospective replication study implicates the catechol-O-methyltransferase Val158Met polymorphism as a biomarker for the response to morphine in patients with cancer". Biomedical Reports 7, no. 4 (2017): 380-384. https://doi.org/10.3892/br.2017.963