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Protein power: a new way to beat sleeplessness in seniors?

NCT ID NCT05400005

Symptom relief Sponsor: National University of Singapore Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study looks at whether eating more protein—from either animal (casein) or plant (soy) sources—can improve sleep quality in adults aged 60 to 85 in Singapore. Fifty-four participants will follow a higher-protein diet and have their sleep measured using questionnaires and activity trackers. The goal is to find a simple, non-drug way to help older adults sleep better.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
dietary protein (casein or soy isolates)
What this could lead to
If it works, this could point toward a simple dietary change to help older adults sleep better.
What could go wrong
This is a small, early-stage trial with only 54 participants. Results may not apply to everyone, and the effect of protein on sleep is still uncertain.

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

About 54 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2023

Expected to finish

Dec 2025

An estimate. End dates often move.

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

60 to 85 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 Criteria: 1. Adults 60-85 years old 2. Not following HPB diet Exclusion Criteria: 1. Weight change \> 3kg in the past 3 months 2. Exercise vigorously over the past 3 months 3. Drinking more than 2 alcoholic drinks per day 4. (if applicable) Pre-menopausal women 5. Taking dietary supplements or medications which may impact sleep outcomes (e.g. Nutritional Shakes (e.g. Ensure), Trp, 5-HTP or melatonin supplementations) the past 1 month 6. Taking dietary supplements which may impact the gut microbiota (e.g. antibiotics, prebiotics, probiotics) the past 2 months (a list of fermented foods) 7. Impaired renal function (normal values: estimated glomerular filtration rate ≥ 90 mL/min/1.73 m2 calculated by chronic kidney disease epidemiology collaboration equation; CKD EPI) 8. Soy intolerance and/or allergy or any medical conditions that may be affected by consumption of soy products (e.g. gout) 9. Prescribed and taking antihypertensive/cholesterol-lowering/ type-2 diabetic medication or Chinese medicine herb which started less than 3 years prior to the intervention participation 10. Diagnosed with gut/gastrointestinal issues such as lactose intolerance and irritable bowel syndrome (IBS)

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Conditions

The condition(s) this trial relates to.

sleep disorder

As listed by the trial registrant

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

Cardiometabolic risk Gut microbiome Sleep

Contacts and locations

Locations

  • National University of Singapore

    Singapore, 117546, Singapore

More trials for these conditions

Other studies related to the condition(s) this trial covers.