Alpha-ketoglutarate to improve recovery after coronary artery bypass
Official title: Evaluating the Impact of Alpha Ketoglutarate (AKG), a Geroprotector, in Reducing Morbidity and Improving Patient-Centred Outcomes After Coronary Artery Bypass Grafting Surgery in Resilient and Poorly-Resilient Patients: A Double-Blind Placebo-Controlled Clinical Trial
Run by National University Hospital, Singapore · NCT07031128 · Data updated 2026-11-12
This trial will try giving alpha-ketoglutarate around the time of elective CABG to see if it reduces an exaggerated immune response and helps people aged 50 and older recover faster.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 50 Years and up |
| Sex | All |
| Enrollment | 250 (estimated) |
| Sponsor | National University Hospital, Singapore Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 2 sites (Singapore, Singapore and 1 other locations) |
| Status | Recruiting |
| Started | June 11, 2024 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | June 22, 2025 |
| Trial ID | NCT07031128 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are people aged 50 or older scheduled for elective CABG with cardiopulmonary bypass who are not already taking AKG and can give informed consent.
✕Probably not a fit
Patients who are immunocompromised, actively infected, receiving chemotherapy or immunosuppressants, pregnant or already taking AKG are excluded and therefore would not be expected to benefit from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, placebo-controlled Phase 4 trial gives alpha-ketoglutarate or matching placebo in the perioperative period to patients aged 50 and over undergoing elective CABG with cardiopulmonary bypass. Blood immune profiling including single-cell mass cytometry will be used before and after surgery to measure changes in immune cell signalling and inflammatory markers. Clinical recovery outcomes such as fatigue, pain, functional impairment, surgical site complications and organ dysfunction will be recorded and correlated with immune signatures. Key exclusions include current AKG use, active infection, recent cancer therapy, planned immunosuppression, certain psychiatric disorders, and pregnancy or breastfeeding.
Why it matters
Potential benefit: If successful, perioperative AKG could blunt harmful postoperative inflammation and speed functional recovery, lowering complications after CABG.
How similar studies have gone: Prior work has shown that preoperative and postoperative immune profiles predict recovery after surgery, but perioperative use of alpha-ketoglutarate as a geroprotector is a relatively new clinical approach with limited trial evidence to date.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria 1. Scheduled for elective CABG with cardiopulmonary bypass 2. Aged 50 years and above 3. Adequate cognitive function to be able to give informed consent Exclusion Criteria 1. Patients already taking AKG as a supplement 2. Substance abuse disorder either untreated or treated 3. Post-traumatic stress disorder, bipolar disorder, Schizophrenia, or any other untreated or poorly controlled mental health or mood disorder, or history of hospitalization due to mental health condition in the past 3 years, cognitively impaired patients 4. HIV/AIDS 5. Patients undergoing or scheduled to undergo chemotherapy or any other treatment for malignancy 6. Patients scheduled for immunosuppressant therapy for transplant 7. Patients with an active infection requiring antibiotic or antiviral therapy 8. Pregnant women / planning to conceive / breastfeeding women 9. Patients who are taking chronic anti-inflammatory drugs e.g., NSAIDS 10. Patients who are hypersensitivity to AKG or placebo or any components of the respective tablets to be administered
Where it's running
-
National University Hospital
Singapore, Singapore, Singapore Recruiting -
Singapore General Hospital
Singapore, Singapore Recruiting
Study contacts
- Principal investigator: Lian Kah Ti — National University Hospital, Singapore
- Study coordinator: Lian Kah Ti
- Email: anatilk@nus.edu.sg
- Phone: 6567724200
Similar studies
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Early breathing therapy just one hour after CABG extubation
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This study tests whether Del Nido cardioplegia helps preserve heart muscle better than standard blood cardioplegia in people undergoing coronary artery bypass grafting.
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This trial will test whether using a device that measures blood flow during coronary bypass surgery helps surgeons ensure grafts stay open and improves recovery for adults having their first non-emergency multivessel CABG.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.