RT Journal Article SR Electronic T1 Morphine for dyspnoea in chronic obstructive pulmonary disease: a before–after efficacy study JF BMJ Supportive & Palliative Care JO BMJ Support Palliat Care FD British Medical Journal Publishing Group SP 427 OP 432 DO 10.1136/bmjspcare-2019-001929 VO 11 IS 4 A1 Yoshinobu Matsuda A1 Tatsuya Morita A1 Hirotaka Matsumoto A1 Keita Hosoi A1 Kayo Kusama A1 Yasuo Kohashi A1 Hiroshi Morishita A1 Sawako Kaku A1 Keisuke Ariyoshi A1 Shunsuke Oyamada A1 Yoshikazu Inoue A1 Satoru Iwase A1 Takuhiro Yamaguchi A1 Mitsunori Nishikawa YR 2021 UL http://spcare.bmj.com/content/11/4/427.abstract AB Objectives Dyspnoea in patients with chronic obstructive pulmonary disease (COPD) is frequent and often persists despite conventional treatment. This study aimed to evaluate the efficacy and safety of oral morphine for dyspnoea in Japanese COPD patients.Methods We conducted a multi-institutional, prospective, before–after study of morphine in COPD patients with dyspnoea at rest in seven hospitals. Patients received 12 mg of oral morphine per day (or 8 mg per day if low body weight or renal impairment). Primary outcome was change in the numerical rating scale (NRS) of current dyspnoea in the evening from Day 0 to Day 2. Secondary outcomes included changes in dyspnoea intensity in the evening from Day 0 to Day 1, dyspnoea intensity between the morning from Day 0 to Day 1 and Day 2, vital signs, nausea, somnolence, anorexia and other adverse events (AEs).Results A total of 35 patients were enrolled in this study between October 2014 and January 2018. One patient did not receive study treatment. Data from 34 patients was analysed. The NRS of dyspnoea intensity in the evening significantly decreased from 3.9 on Day 0 (95% CI: 3.1 to 4.8) to 2.4 on Day 2 (95% CI: 1.7 to 3.1; p=0.0002). Secondary outcomes significantly improved in a similar manner. There were no apparent changes in the mean scores of the opioid-related AEs and vital signs. One patient experienced grade 3 lung infection not associated with morphine. Other AEs were mild.Conclusion Oral morphine is effective in alleviating dyspnoea in Japanese COPD patients. Trial registration UMIN000015288 (http://www.umin.ac.jp/ctr/index.htm).No data are available.