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JAMA NetworkEffect of Regular, Low-Dose, Extended-release Morphine on Chronic Breathlessness in Chronic Obstructive Pulmonary Disease: The BEAMS Randomized Clinical Trial

A double-blind, placebo-controlled randomized clinical trial including people with COPD and chronic breathlessness was conducted at 20 Australian medical centers. One-hundred sixty participants were randomized to oral extended-release morphine versus placebo. The change in the intensity of worst breathlessness at week 1 was not significantly different between the morphine group and the placebo group.