4.7 Article

A randomised, double blind, placebo-controlled trial of megestrol acetate or dexamethasone in treating symptomatic anorexia in people with advanced cancer

Journal

SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -

Publisher

NATURE RESEARCH
DOI: 10.1038/s41598-021-82120-8

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Funding

  1. Commonwealth of Australia

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This study compared megestrol acetate and dexamethasone for their effects on appetite in cancer patients with anorexia, finding similar improvements in appetite with both drugs. Treatment emergent adverse events were frequent, including altered mood and insomnia, indicating caution should be used when prescribing these medications.
This multi-site, double blind, parallel arm, fixed dose, randomised placebo controlled phase III study compared megestrol acetate 480 mg/day with dexamethasone 4 mg/day for their net effects on appetite in people with cancer anorexia. Patients with advanced cancer and anorexia for >= 2 weeks with a score <= 4 (0-10 numeric rating scale (NRS) 0=no appetite, 10=best possible appetite) were recruited. Participants received megestrol 480 mg or dexamethasone 4 mg or placebo daily for up to 4 weeks. Primary outcomes were at day 7. Responders were defined as having a >= 25% improvement in NRS over baseline. There were 190 people randomised (megestrol acetate n=61; dexamethasone n=67, placebo n=62). At week 1 (primary endpoint), 79.3% in the megestrol group, 65.5% in the dexamethasone group and 58.5% in the placebo group (p=0.067) were responders. No differences in performance status or quality of life were reported. Treatment emergent adverse events were frequent (90.4% of participants), and included altered mood and insomnia. Hyperglycemia and deep vein thromboses were more frequent when on dexamethasone than the other two arms. There was no difference in groups between the three arms, with no benefit seen over placebo with anorexia improving in all arms.Trail registration: The trial was registered on 19/08/2008 with the Australian New Zealand Clinical Trials Registry (ACTRN12608000405314).

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