Trial reportCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2014
Effect of melatonin on incidence of delirium among patients with hip fracture: a multicentre, double-blind randomized controlled trial.
Trial report in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02654314 (Prevention of Delirium in Inpatients Utilizing Melatonin), which is not on this map. Cited by 67 papers, 10 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Prevention of Delirium in Inpatients Utilizing Melatonin
Who cites it
67 citing papers in PubMed, 10 syntheses or guidelines pooled it, 168 citations in OpenAlex.
- Effects of melatonin on the prevention of delirium in hospitalized older patients: systematic review and meta-analysis.BMC pharmacology & toxicology · 2024Pooled it
- Efficacy and safety of perioperative melatonin for postoperative delirium in patients undergoing surgery: a systematic review and meta-analysis.The Journal of international medical research · 2024Pooled it
- Prophylactic effect of exogenous melatonin and melatonin receptor agonists on postoperative delirium in elderly patients: a systemic review and meta-analysis of randomized controlled trials.Aging clinical and experimental research · 2023Pooled it
- Melatonin intervention to prevent delirium in the intensive care units: a systematic review and meta-analysis of randomized controlled trials.Frontiers in endocrinology · 2023Pooled it
- Melatonin Receptor Agonists for the Prevention of Delirium: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials.Current neuropharmacology · 2022Pooled it
- Assessment of Melatonergics in Prevention of Delirium: A Systematic Review and Meta-Analysis.Frontiers in neurology · 2020Pooled it
- Melatonin for the prevention of postoperative delirium in older adults: a systematic review and meta-analysis.BMC geriatrics · 2019Pooled it
- Prevention of postoperative delirium in elderly patients planned for elective surgery: systematic review and meta-analysis.Clinical interventions in aging · 2019Pooled it
- Exogenous Melatonin for Delirium Prevention: a Meta-analysis of Randomized Controlled Trials.Molecular neurobiology · 2016Pooled it
- Interventions for preventing delirium in hospitalised non-ICU patients.The Cochrane database of systematic reviews · 2016Pooled it
- Trial
- Melatonin for preventing postoperative delirium in elderly patients: A multicenter randomized placebo-controlled pilot study.Medicine · 2025Trial
- Prophylactic melatonin for delirium in intensive care (Pro-MEDIC): a randomized controlled trial.Intensive care medicine · 2022Trial
- Effect of Melatonin on Delirium After on-Pump Coronary Artery Bypass Graft Surgery: A Randomized Clinical Trial.Iranian journal of medical sciences · 2021Trial
- Trial
- Effects of Ramelteon on the Prevention of Postoperative Delirium in Older Patients Undergoing Orthopedic Surgery: The RECOVER Randomized Controlled Trial.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2021Trial
- Effect of Depth of Sedation in Older Patients Undergoing Hip Fracture Repair on Postoperative Delirium: The STRIDE Randomized Clinical Trial.JAMA surgery · 2018Trial
- Melatonin and Sleep in Preventing Hospitalized Delirium: A Randomized Clinical Trial.The American journal of medicine · 2018Trial
- Design considerations of a randomized controlled trial of sedation level during hip fracture repair surgery: a strategy to reduce the incidence of postoperative delirium in elderly patients.Clinical trials (London, England) · 2017Trial
- Trial
7 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDisturbance of the sleep-wake cycle is a characteristic of delirium. In addition, changes in melatonin rhythm influence the circadian rhythm and are associated with delirium. We compared the effect of melatonin and placebo on the incidence and duration of delirium.
methodsWe performed this multicentre, double-blind, randomized controlled trial between November 2008 and May 2012 in 1 academic and 2 nonacademic hospitals. Patients aged 65 years or older who were scheduled for acute hip surgery were eligible for inclusion. Patients received melatonin 3 mg or placebo in the evening for 5 consecutive days, starting within 24 hours after admission. The primary outcome was incidence of delirium within 8 days of admission. We also monitored the duration of delirium.
resultsA total of 452 patients were randomly assigned to the 2 study groups. We subsequently excluded 74 patients for whom the primary end point could not be measured or who had delirium before the second day of the study. After these postrandomization exclusions, data for 378 patients were included in the main analysis. The overall mean age was 84 years, 238 (63.0%) of the patients lived at home before admission, and 210 (55.6%) had cognitive impairment. We observed no effect of melatonin on the incidence of delirium: 55/186 (29.6%) in the melatonin group v. 49/192 (25.5%) in the placebo group; difference 4.1 (95% confidence interval -0.05 to 13.1) percentage points. There were no between-group differences in mortality or in cognitive or functional outcomes at 3-month follow-up.
interpretationIn this older population with hip fracture, treatment with melatonin did not reduce the incidence of delirium.
trial registrationNetherlands Trial Registry, NTR1576: MAPLE (Melatonin Against PLacebo in Elderly patients) study; www.trialregister.nl/trialreg/admin/rctview.asp?TC=1576.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.