Melatonin may ease sleep and brain fog in liver disease — a trial puts it to the test
NCT ID NCT07046429
First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time
Summary
This pilot study tests whether taking melatonin at night can increase REM sleep and improve cognitive function in people with cirrhosis who have a complication called hepatic encephalopathy (HE). Participants take melatonin for one month and a control supplement (thiamine) for another month, while wearing a sleep tracker and undergoing cognitive tests and sleep studies. The goal is to see if a simple, widely available supplement can help with the sleep disturbances and mental fog that often accompany advanced liver disease.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- melatonin 3 mg tablet taken nightly for 30 days, compared with thiamine 100 mg tablet as a control
- What this could lead to
- If it works, melatonin could offer a simple, low-cost way to improve sleep and brain function in people with cirrhosis and hepatic encephalopathy.
- What could go wrong
- This is a very small pilot study with only 18 participants, so results may not apply broadly. Melatonin can cause drowsiness, dizziness, or headaches, and its long-term effects in liver disease are not well studied.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 18 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Cirrhosis with clinically significant portal hypertension or decompensation defined by Baveno VII criteria \[de Franchis R et al 2022\] * Adults over age 18 * CHE (defined by PHES≤ -4) or previously diagnosed HE * Disturbed sleep, with Pittsburgh Sleep Quality Index (PSQI) ≥5 * Possession of a "smart phone" with Bluetooth capability and ability to download the Oura application (Apple iOS version 14.0 or greater or Android version 8.0 or higher) Exclusion Criteria: * Use of melatonin regularly (3x per week) if unable/unwilling to discontinue for the study * Inability provide informed consent * Heavy current alcohol use (\>7 drinks weekly for women and 14 drinks weekly for men)' \-- Body mass index \>40 * Known prior sleep disorder including obstructive sleep apnea * Use of other prescription neuromodulating sleep aides * Self-reported pregnancy during study screening, as sleep physiology is different in this population
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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NewYork-Presbyterian/Weill Cornell Medical Center
RECRUITINGNew York, New York, 10021, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Gut bacteria in a capsule: a new attempt to calm a brain complication of cirrhosis
- Sound waves may replace the needle in liver scarring tests
- Ultrasound may replace invasive test for dangerous liver complication
- Could a wearable zapper quiet cirrhosis pain without drugs?
- A needle through the gut could replace the standard liver pressure test