Clinical trial Recruiting at 2 sites Phase 4 Interventional Ages 50 and up

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.

More CABG trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages50 Years and up
SexAll
Enrollment250 (estimated)
SponsorNational University Hospital, Singapore
Academic / other
Drugs / interventionschemotherapy
Locations2 sites (Singapore, Singapore and 1 other locations)
StatusRecruiting
StartedJune 11, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedJune 22, 2025
Trial IDNCT07031128 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

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Nonintubated anesthesia for adults undergoing cardiac surgery with bypass

    This trial tests a nonintubated airway approach with the goal of seeing if avoiding endotracheal intubation during elective valve or bypass surgery can reduce lung problems and help patients recover faster.

    Recruiting The First Affiliated Hospital of Guangzhou Medical University · Guangzhou, Guangdong · NCT07744009

  • Early breathing therapy just one hour after CABG extubation

    This trial tests whether starting respiratory physiotherapy one hour after extubation improves recovery for adults after elective CABG compared with starting on the first postoperative day.

    Recruiting Alma Mater Europaea - Slovenia · Zagreb · NCT07730034

  • Structured inpatient physiotherapy before and after CABG for high-risk patients

    This trial tests whether starting a structured inpatient physiotherapy program at least two days before CABG and continuing after surgery helps high-risk patients recover faster than the same program used only after surgery.

    Recruiting Bezmialem Vakif University · Istanbul, Eyupsultan · NCT07725887

  • Del Nido vs Blood Cardioplegia for Heart Muscle Health During CABG

    This study tests whether Del Nido cardioplegia helps preserve heart muscle better than standard blood cardioplegia in people undergoing coronary artery bypass grafting.

    Recruiting at 2 sites Klinički Bolnički Centar Zagreb · Zagreb and 1 other locations · NCT07637266

  • Low-dose IL-2 after heart attack to study tissue-resident regulatory T cells

    Researchers are testing whether low-dose interleukin-2 given after a myocardial infarction can boost tissue-resident regulatory T cells to support heart repair.

    Recruiting at 2 sites Cambridge University Hospitals NHS Foundation Trust · Cambridge, Cambridgeshire and 1 other locations · NCT07610538

  • Using blood flow measurements during bypass surgery to predict graft openness and recovery

    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.

    Recruiting Weill Medical College of Cornell University · New York, New York · NCT07485738

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.