Can a simple supplement turn back the clock on aging?
NCT ID NCT07114536
First seen Jun 24, 2026 · Last updated Sep 17, 2026 · Updated 4 times
Summary
This study tests whether a dietary supplement called calcium alpha-ketoglutarate (CaAKG) can slow biological aging and improve physical performance and metabolic health in adults aged 40 to 75. Thirty participants will take either CaAKG or a placebo daily for 12 weeks. Researchers will measure changes in biological age using a blood-based test called PhenoAge, along with other health markers.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- calcium alpha-ketoglutarate (CaAKG) dietary supplement
- What this could lead to
- If it works, this could point toward a simple dietary supplement that helps slow biological aging and improve physical health in middle-aged and older adults.
- What could go wrong
- This is a very small early trial with only 30 participants, so results may not apply to everyone. The supplement may have no effect on aging or could cause side effects not yet known.
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
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34 people
The number who actually took part.
- Started
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Aug 2025
- Finished
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Nov 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
40 to 75 years
- Sex
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Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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. Aged 40-75 years old, no gender restrictions. 2. Has not taken any other anti-ageing research products in the past two months. 3. Able to use a smartphone. 4. Informed consent, voluntarily signed informed consent form, and agreed to participate in all visits and treatments in accordance with the trial protocol. Exclusion Criteria: 1. Patients with cardiovascular disease, severe/uncontrolled hypertension, rheumatic heart disease, congenital heart disease, deep vein thrombosis, or pulmonary embolism . 2. Patients with Type I/Type II diabetes (treated with oral metformin or insulin) or diabetes complications . 3. Patients with cancer or who have undergone surgery, systemic drug therapy, or radiation therapy within the past 3 years. 4. Chronic obstructive pulmonary disease (COPD), severe asthma (requiring daily medication). 5. Multiple sclerosis, autoimmune/immunodeficiency disorders. 6. Recent history of sepsis or infection (hospitalisation within the past 3 months). 7. Any mental illness or neurodegenerative disease. 8. Any metallic implants in the body. 9. Hepatitis/cirrhosis. 10. Severe kidney disease (GFR \<30 mL/min/1.73 m²). 11. Suffering from other conditions deemed unsuitable for participation in this trial (as determined by the investigator).
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Zhejiang Chinese Medicine University
Hangzhou, Zhejiang, 310051, China
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