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Melatonin and Sleep in Preventing Delirium in the Hospital

Melatonin and Sleep in Preventing Delirium in the Hospital: A Randomized Placebo-controlled Trial

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02597231
Acronym
MELO
Enrollment
94
Registered
2015-11-05
Start date
2015-11-30
Completion date
2016-12-31
Last updated
2017-10-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Delirium

Keywords

Delirium, Melatonin

Brief summary

Recent data suggests that melatonin, a supplement available over the counter, may help prevent delirium in hospitalized patients. The investigators are hypothesizing that melatonin may help in delirium prevention by improving sleep quality and possibly circadian rhythm cycling in patients who are given the supplement. This pilot study involves a randomized placebo-controlled design in which participants will be randomized to receive either melatonin 3mg orally or placebo orally. Participants in both groups will be fitted with wireless actigraphy devices to obtain objective sleep quality, and will also receive a sleep questionnaire each morning to obtain subjective data on their sleep quality overnight. Delirium will be assessed by floor nurses twice daily using the Confusion Assessment Method (CAM).

Interventions

DIETARY_SUPPLEMENTMelatonin

Melatonin is the dietary supplement we are using in delirium prevention.

OTHERPlacebo

Patients in this group will receive a matching placebo pill.

Sponsors

Scripps Clinic
CollaboratorOTHER
Scripps Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
65 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* 65-100 years old * Admitted to Scripps Green Hospital * Admitted to an Internal Medicine or Medicine Consult Service * Expected to have a hospital stay of greater than or equal to 48 hours (patients admitted to inpatient, not observation, under Medicare guidelines)

Exclusion criteria

* Cirrhosis of any etiology * Admitted for alcohol withdrawal * Currently taking a 1st or 2nd generation anti-psychotic * Active delirium (i.e., delirium prior to 1st dose of melatonin) * Diagnosis of encephalitis * History of seizure

Design outcomes

Primary

MeasureTime frameDescription
Delirium as measured by CAM AssessmentDelirium assessments will be made twice daily (am and pm measurements) throughout the course of the patient's admission, or to the end of a 2 week period of enrollment - whichever comes first.Primary outcome is whether patients become delirious, as measured by CAM during their hospital admission.

Secondary

MeasureTime frameDescription
Objective sleep quality, measured by number of nighttime wakeningsnightly, throughout the course of the patient's admission, or to the end of a 2 week period of enrollment - whichever comes first.We will measure the number of nighttime wakenings using wireless actigraphy.
Objective Sleep Quality, measured by nocturnal sleep durationnightly, throughout the course of the patient's admission, or to the end of a 2 week period of enrollment - whichever comes first.Nocturnal sleep duration will be measured by wireless actigraphy.
Objective sleep quality, measured by sleep latencynightly, throughout the course of the patient's admission, or to the end of a 2 week period of enrollment - whichever comes first.We will measure sleep latency (time to fall asleep) using wireless actigraphy.
Subjective sleep quality, measured by Richards-Campbell sleep questionnaireonce daily, throughout the course of the patient's admission, or to the end of a 2 week period of enrollment - whichever comes first.Patients will be asked to fill out the Richards-Campbell sleep question, which uses a visual analog scale for 5 questions that are designed to assess a patient's perceived sleep quality.

Other

MeasureTime frameDescription
Subjective sleep quality following hospital discharge.6 months following hospital dischargePatients will be given an insomnia questionnaire over the phone at 6 months.
Disposition following hospitalization1 day following hospital discharge or at the 2 week time end point of the study.We want to determine if the patient is discharged to home, to a post-acute care facility, or to a new type of living facility that was different from their prior living situation.
Mortality6 month

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026