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Late dinner may disrupt your Body's clock, study finds

NCT ID NCT04671797

Knowledge-focused Sponsor: Johns Hopkins University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
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Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how eating dinner early versus late affects metabolism in 41 healthy adults aged 18-30. Researchers timed meals based on each person's natural body clock and took blood samples to measure sugar and fat levels. The goal was to understand how meal timing impacts the body's processing of food.

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

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

41 people

The number who actually took part.

Started

Jan 2021

Finished

Jun 2025

Lead sponsor

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

18 to 30 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion: * Healthy male and female adult volunteers, age 18-30 * BMI 18-30 kg/m2 * Accustomed to a bedtime before 1:00 A.M. or having mid-sleep on free days (MSF) earlier than 5 A.M. from the Munich Chronotype Questionnaire (MCTQ) (to exclude extreme late chronotypes) Exclusions: * Sleep disorder including insomnia, sleep apnea, circadian rhythm disorder, restless leg syndrome, narcolepsy, shift work sleep disorder * Gastroesophageal reflux disease that affects ability to tolerate a dinner close to bed time. * Chronic use of sedative hypnotics, anxiolytics, opiates * Use of medications that can affect circadian rhythm (beta blockers, melatonin) * Active smoking (may interfere with metabolism and Clinical Research Unit (CRU) activities) * Diabetes (type 1 or 2) * HbA1c point of care \>= 6.5% * Kidney disease * Any known history of an inherited metabolic disorder * Pregnant or lactating female (pregnancy test will be required) * Professional or collegiate athlete * Travel across \>1 time zone within a 3-month period before and during the protocol * DLMO \> 24:00 will be excluded from the metabolic study visits

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy

Contacts and locations

Locations

  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, 21224, United States

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