1.Predictors for Diarrhea After Administration of Naldemedine: Analysis Focusing on the Administration Period of Opioid Analgesics Before the Start of Naldemedine
Junya HASHIZUME ; Emi RYU ; Seiichi NOSE ; Kei MIYANAGA ; Reiko KISHIKAWA ; Tadahiro NAKAMURA ; Takahiro MURO ; Yukinobu KODAMA ; Haruna YAMASHITA ; Koji ISHII ; Hitoshi SASAKI
Palliative Care Research 2020;15(2):101-109
Purpose: Naldemedine is a peripheral µ-opioid receptor antagonist, including the treatment of opioid-induced constipation (OIC) . However, diarrhea is known as its side effect. We conducted a study focusing on the administration period of opioid analgesics before the start of naldemedine to clear predictors of diarrhea due to Naldemedine. Method: All data were retrospectively collected from the electronic medical record system. We investigated patients who initially administrated naldemedine at Nagasaki University Hospital from June 1 2017 to March 31 2019. Result: One hundred thirty-two patients were subject of investigation. The incidence of diarrhea was 25.0%. The result of the multivariate analysis showed that significant predictors of diarrhea were associated with the opioid analgesics usage period longer than 7 days before naldemedine initiation (odds ratio: 3.76, 95% confidence interval: 1.53-9.20, p=0.004). Discussion: When naldemedine was used for OIC, diarrhea may be avoided by using within 7 days after opioid analgesics.
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