Clinical trial registry record

Does Alpha-ketoglutarate Supplementation Lower BiologicaL agE in Middle- Aged Adults?

A registered PHASE2 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 2 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 May 26, 2026.
Where to verify
Open the primary registry below for eligibility, locations, contacts, and current status.
Registry ID
NCT05706389
Last registry update
May 26, 2026
Status
Active Not Recruiting
Phase
Phase 2
Sponsor
National University of Singapore
Enrollment
120
Countries
Singapore
Match confidence
100%
Source feed
ClinicalTrials.gov
Automated source synopsis

A registered PHASE2 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 2
Study design
RANDOMIZED · PARALLEL · PREVENTION · QUADRUPLE
Evidence population
Human clinical study registration
Participants
120
Population
ALL · 40 Years to 60 Years
Duration
2023-02-24 to 2027-01-15
Intervention
Ca-AKG
Comparator
Placebo
Outcomes measured
Change in blood DNA methylation status, years — from baseline to end of intervention (6 months); Complete blood count — from baseline to end of intervention (6 months); Carotid-femoral Pulse Wave Velocity change — from baseline to end of intervention (6 months); Central Blood pressure change — from baseline to end of intervention (6 months); Body Mass Index (BMI) change — from baseline to end of intervention (6 months); Brachial Blood pressure change — from baseline to end of intervention (6 months); Waist/hip ratio change — from baseline to end of intervention (6 months); Bone Mineral Density, g/cm2 change — from baseline to end of intervention (6 months); Fat-free mass, change (kg) — from baseline to end of intervention (6 months); Fat mass, change (kg) — from baseline to end of intervention (6 months); Handgrip strength change (kg) — from baseline to end of intervention (6 months); 8-RM leg extension change (kg) — from baseline to end of intervention (6 months); Cardiopulmonary exercise test (CPET): Change in Volume of Oxygen consumption (V̇O2), L/min — from baseline to end of in…; Cardiopulmonary exercise test (CPET): Change in Volume of Oxygen consumption per kg body weight (V̇O2/kg), L/min/kg — f…; Cardiopulmonary exercise test (CPET): change in lactate — from baseline to end of intervention (6 months); Cardiopulmonary exercise test (CPET): change in heart rate — from baseline to end of intervention (6 months); Cardiopulmonary exercise test (CPET): aerobic and anaerobic threshold change — from baseline to end of intervention (6…; Cardiopulmonary exercise test (CPET): excess post-exercise oxygen consumption change — from baseline to end of interven…; Change in Skin autofluorescence, au — from baseline to end of intervention (6 months); Change in Quality-of-Life questionnaires (SF-36 questionnaires) — from baseline to end of intervention (6 months)
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 2A 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.

  • Alpha-ketoglutarate · 100%Title contains controlled term: alpha-ketoglutarate. Abstract contains controlled term: alpha-ketoglutarate, akg. Source terminology contains: akg. Title supplies longevity context: biological age. Study type is explicitly identified as INTERVENTIONAL.
  • Biological age biomarkers · 80%Title contains controlled term: biological age. Title supplies longevity context: biological age. Study type is explicitly identified as INTERVENTIONAL.

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