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Papers of the Week

Papers: 26 Nov 2022 - 2 Dec 2022

2022 Nov 25


Morphine Versus Oxycodone for Cancer Pain Using a Catechol-O-methyltransferase Genotype Biomarker: A Multicenter, Randomized, Open-Label, Phase III Clinical Trial (RELIEF Study).


Matsuoka H, Tsurutani J, Chiba Y, Fujita Y, Sakai K, Yoshida T, Nakura M, Sakamoto R, Makimura C, Ohtake Y, Tanaka K, Hayashi H, Takeda M, Okuno T, Takegawa N, Haratani K, Koyama A, Nishio K, Nakagawa K
Oncologist. 2022 Nov 25.
PMID: 36426809.


We hypothesized that the high-dose opioid requirement in patients carrying the rs4680-GG variant in the COMT gene encoding catechol-O-methyltransferase would be greater for patients taking morphine than for those taking oxycodone, thus providing a much-needed biomarker to inform opioid selection for cancer pain.