[Efficacy comparison between morphine sulfate controlled-released tablet and morphine hydrochloride sustained-released tablet in treating cancer pain].
OBJECTIVE
Morphine sulfate controlled-released tablet and morphine hydrochloride sustained-released tablet are preferred medicines for treating moderate-severe cancer pain. There are some differences between the two medicines in their efficacy, metabolism and adverse events. This study was to compare the efficacy and toxicities between morphine sulfate controlled-released tablet and morphine hydrochloride sustained-released tablet in treating moderate-severe cancer pain.


METHODS
A total of 121 patients with moderate-severe cancer pain were randomized into two groups: 61 were treated with morphine sulfate controlled-released tablet and 60 were treated with morphine hydrochloride sustained-released tablet. Analgesic efficacy and toxicities of the two medicines were observed.


RESULTS
Of the 61 patients treated with morphine sulfate controlled-released tablet, 12 had moderate pain, 49 had severe pain; the total response rate was 91.80%. Of the 60 patients treated with morphine hydrochloride sustained-released tablet, 13 had moderate pain, 47 had severe pain; the total response rate was 91.67%. There was no significant difference in the efficacy between the two medicines. Digestive system adverse events, including nausea, vomiting and constipation, were more common in morphine hydrochloride sustained-released tablet group than in morphine sulfate controlled-released tablet group (66.66% vs. 34.43%, P<0.05).


CONCLUSIONS
Both morphine sulfate controlled-released tablet and morphine hydrochloride sustained-released tablet are safety in treating moderate-severe cancer pain and the toxicities are tolerable. We recommend to take morphine sulfate controlled-released tablet for older patients and the patients with digestive disorders.
Yao
Wen-Xiu
WX
Department of Medical Oncology, Sichuan Provincial Tumor Hospital, Chengdu, Sichuan, 610041, PR China. ywxhlx@sina.com
Zhou
Hang
H
Wang
Li-Yang
LY
Wei
Yang
Y
Liu
Xian-Yu
XY
D000293:Adolescent; D000328:Adult; D000368:Aged; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects / Q000145:classification / Q000627:therapeutic use*; D003248:Constipation / Q000139:chemically induced; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage / Q000009:adverse effects / Q000145:classification / Q000627:therapeutic use*; D009325:Nausea / Q000139:chemically induced; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D010147:Pain Measurement; D016896:Treatment Outcome; D014839:Vomiting / Q000139:chemically induced; D055815:Young Adult
D000701:Analgesics, Opioid; D003692:Delayed-Action Preparations; D009020:Morphine