Clinical trial registry record

Impact of Different Types of Higher Dietary Protein Intake on Sleep Quality in Singapore Older Adults

A registered study indexed because it matched monitored longevity research terms. Registry status: Active Not Recruiting. Registration does not establish safety or effectiveness.

Plain-language guide

Five questions to ask about this record

What this is
A clinical study registration, not a result or recommendation.
Why it may matter
The registry currently reports Active Not Recruiting.
Evidence
Registered phase not reported study.
Main limitation
Registration does not prove that the intervention works, is safe, or is available to you.
What changed
Registry metadata was last updated September 10, 2025.
Where to verify
Open the primary registry below for eligibility, locations, contacts, and current status.
Registry ID
NCT05400005
Last registry update
September 10, 2025
Status
Active Not Recruiting
Phase
Phase not reported
Sponsor
National University of Singapore
Enrollment
54
Countries
Singapore
Match confidence
100%
Source feed
ClinicalTrials.gov
Automated source synopsis

A registered study indexed because it matched monitored longevity research terms. Registry status: Active Not Recruiting. Registration does not establish safety or effectiveness.

Evidence snapshot

What the source actually supports

Evidence stage
Phase not reported
Study design
RANDOMIZED · FACTORIAL · BASIC SCIENCE · DOUBLE
Evidence population
Human clinical study registration
Participants
54
Population
ALL · 60 Years to 85 Years
Duration
2023-02-01 to 2025-12-01
Intervention
Dietary protein
Comparator
Normal protein diet (control)
Outcomes measured
Change in sleep quality assessed by validated sleep questionnaires — Every 4 weeks (week 0, week 4, week 8, week 12 and…; Change in sleep quality assessed by electronic equipment — Every 4 weeks (week 0, week 4, week 8, week 12 and week 16); Change in blood amino acid concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in blood serotonin concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in urinary 6-sulfatoxymelatonin (aMT6s) concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in fecal microbiome composition — Every 8 weeks (week 0 , week 8 and week 16); Change in fecal short chain fatty acid (SCFA) concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in serum lipopolysaccharide binding protein (LBP) concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in blood short chain fatty acid (SCFA) concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in fecal bile acids — Every 8 weeks (week 0 , week 8 and week 16); Change in fecal zonulin — Every 8 weeks (week 0 , week 8 and week 16); Change in fecal calprotectin — Every 8 weeks (week 0 , week 8 and week 16); Change in urinary creatinine concentration — Every 8 weeks (week 0 , week 8 and week 16); Change in Estimated Glomerular Filtration Rate (eGFR) — Every 8 weeks (week 0 , week 8 and week 16); Change in Trimethylamine N-oxide (TMAO) — Every 8 weeks (week 0 , week 8 and week 16); Change in Blood Glucose — Every 8 weeks (week 0 , week 8 and week 16); Change in Blood Triglyceride — Every 8 weeks (week 0 , week 8 and week 16); Change in Blood Cholesterol — Every 8 weeks (week 0 , week 8 and week 16); Change in Blood Low-density Lipoprotein-cholesterol (LDL) — Every 8 weeks (week 0 , week 8 and week 16); Change in Blood High-density Lipoprotein-cholesterol (LDL) — Every 8 weeks (week 0 , week 8 and week 16)
Reported result
No reusable finding-level result is available in this record.

Main limitationThis is a study registration. No reusable structured result is available here, so it cannot show whether the intervention worked or was safe.

Safety and approvalEligibility, adverse-event details, and clinical decisions must be checked in the official registry and with qualified clinicians. Trial registration is not regulatory approval and does not establish that an intervention is available.

Source supportStructured registry protocol metadata; no finding-level conclusion is generated.

Trial stage · Phase not reportedA trial phase describes development stage; it does not establish a positive result.
Phase 1Phase 2Phase 3Phase 4

Registration and recruitment status do not establish safety, efficacy, or regulatory approval.

Why this record appears here · 100% topic match

The title, summary, or source keywords matched one or more topics followed by immortal.life. A higher percentage means a stronger topic match; it does not rate safety, effectiveness, or study quality.

  • Sleep · 100%Title contains controlled term: sleep. Abstract contains controlled term: sleep. Source terminology contains: sleep. Title supplies longevity context: older adult. Study type is explicitly identified as INTERVENTIONAL.

Automated source check 100% · update recency 65%. These figures help sort records; they are not medical ratings.