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NCT Number: NCT07451496

PRecision gerOMedicinE: Tailored Healthy agEing With Lifestyle, sUpplements and drugS (PROMETHEUS)

As the population ages, the growing prevalence of age-related diseases is creating substantial challenges for healthcare systems worldwide. Current therapeutic strategies often target individual diseases and decrease mortality without improving healthspan. The geroscience hypothesis suggests that targeting the ageing process itself could prevent, delay, or manage the severity of multiple age-related diseases concurrently, thereby improving overall healthspan and reducing healthcare burdens.

Emerging research highlights several interconnected hallmarks of aging, such as mitochondrial dysfunction, chronic inflammation, impaired autophagy, and immune dysregulation, as modifiable through targeted interventions. Precision geromedicine represents a paradigm shift in addressing these processes, combining baseline diagnostics with individualized treatment strategies that adapt over time based on patient response. This approach integrates lifestyle modifications, dietary supplements, and pharmacological agents to optimize physical, cognitive, and immune function across the lifespan .

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Key information

Conditions

Age range

50 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

MD11 Clinical Research Centre, #03-01, 10 Medical Drive, Singapore 117597

Singapore, 117597

Location status: Recruiting

Location contact

Ajla Hodzic Kuerec, MD, PhD

CONTACT

[email protected]

87142730

Andrea Britta Maier, MD, PHD, FRACP

PRINCIPAL_INVESTIGATOR

Mazzarine Dotou, PhD, MBA

CONTACT

[email protected]

About this study

This study aims to evaluate the effectiveness and feasibility of a personalized, multimodal precision geromedicine intervention targeting key hallmarks of aging. We hypothesize that an 8-week intervention combining lifestyle modification and targeted supplementation will improve biological and clinical markers of aging in middle-aged to older (50-80 years) adults.

Participants within this age range are chosen because they are more likely to encounter early declines in muscle, immune, and cognitive functions, while still being responsive to preventive measures. The criteria for inclusion concentrate on individuals scoring below the 75th percentile for normative values in VO₂peak and cognitive performance. This demographic presents an optimal opportunity for interventions aimed at prolonging healthspan and postponing functional decline.

Hypothesis

The multimodal precision geromedicine intervention will be feasible to conduct and effective in improving muscle, cognitive, and immune function, as well as other biological, clinical, and digital biomarkers of aging in middle aged to older adults.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 50-80 years (both male and female)
  • Relatively healthy and in stable health condition
  • Not engaged in regular resistance or aerobic training in the past 12 months (i.e., untrained)
  • VO₂peak below the 75th percentile for age- and sex-specific norms
  • Cognitive performance below 75th percentile on the NIH Toolbox Cognitive Function Battery
  • Willing and able to comply with exercise and supplementation protocols
  • English-literate (can read and understand English)
  • Provides written informed consent
  • Deemed to have mental capacity, as assessed by the Principal Investigator
  • Are able to attend all research visits for screening and research data collection at MD11, Yong Loo Lin School of Medicine, National University of Singapore

Exclusion criteria

  • Significant change in medication in the past 3 months
  • History of major cardiovascular disease (e.g., coronary artery disease, heart failure, stroke)
  • More than two unstable chronic conditions (e.g., hypertension, diabetes, osteoarthritis, COPD)
  • Known allergies to soy, shellfish/seaweed, mushrooms, or supplement ingredients
  • Participation in another interventional clinical trial
  • Current use of any study-related supplement unless willing to stop
  • Any medical, psychiatric, or cognitive condition deemed by the PI to jeopardise safety or compliance
  • Pregnant or planning pregnancy during the study period
  • Any conditions deemed by PI that jeopardize the safety or study compliance

Treatment and study plan

Sleep and dietary counseling

Other

Sleep hygiene education and individualized dietary recommendations delivered throughout the intervention period.

Supervised exercise and exergaming program

Other

Supervised dual-task cognitive-physical training with an exergaming component conducted three times per week, 60 minutes per session.

Motivational Interviewing

Behavioral

Structured motivational interviewing sessions aimed at improving adherence to lifestyle and supplementation interventions conducted two times throughout the study.

Whey Protein

Dietary Supplement

Daily whey protein supplementation (GOLD STANDARD 100% ISOLATE, Optimum Nutrition) provided using a standard 30 g scoop (~25 g protein). Dosage based on body weight:

40-59 kg: 1 scoop/day

60-89 kg: 1.5 scoops/day

≥90 kg: 2 scoops/day

Creatine Monohydrate

Dietary Supplement

Daily creatine supplementation (Micronized Creatine Monohydrate, Optimum Nutrition; 1.25 g per capsule). Dosage based on body weight:

40-59 kg: 4 capsules/day

60-89 kg: 6 capsules/day

≥90 kg: 8 capsules/day

Fucoidan

Dietary Supplement

Daily fucoidan supplementation (SIRT6Activator®, DoNotAge.org) at a dose of 2.4 g/day.

Urolithin A

Dietary Supplement

Participants below the 50th percentile for normative muscle mass receive urolithin A (StanYouth™ Urolithin A, Bonerge) at 250 mg/day.

Nicotinamide Mononucleotide (NMN)

Dietary Supplement

Participants below the 50th percentile for normative VO₂peak receive NMN (AbinoNutra® NMN, Abinopharm, Inc.) at 300 mg/day.

Multivitamin

Dietary Supplement

Participants below the 50th percentile for normative cognitive performance receive a gender-specific multivitamin (Centrum), 1 tablet daily.

Ergothioneine

Dietary Supplement

At the midpoint of the intervention (1 month), participants may receive ergothioneine (Dr.Ergo® L-ergothioneine) at 25 mg three times per week based on individual response.

Primary outcomes

  1. Change from baseline in cardiorespiratory fitness (VO₂peak)

    Time frame: Baseline, Week 4, and Week 8

    VO₂peak will be determined using standardized cardiopulmonary exercise testing on an electronically braked cycle ergometer

  2. Change from baseline in muscle strength (one-repetition maximum (1RM))

    Time frame: Baseline, Week 4, and Week 8

    Change from baseline in muscle strength assessed by one-repetition maximum (1RM) testing

  3. Change from baseline in muscle mass (Ultrasound imaging)

    Time frame: Baseline, Week 4, and Week 8

    Muscle thickness of the thigh will be assessed non-invasively using B-mode ultrasound with a linear array transducer.

  4. Change from baseline in cognitive performance (NIH Toolbox Fluid Cognition Composite)

    Time frame: Baseline, Week 4, and Week 8

    Change from baseline in cognitive performance assessed by the NIH Toolbox Fluid Cognition Composite score.

  5. Change from baseline in immune function (CD4+: CD8+ ratio)

    Time frame: Baseline, Week 4, and Week 8

    Change from baseline in immune status assessed by the CD4+:CD8+ T-cell ratio.

Secondary outcomes

  1. Change from Baseline in Circulating Cytokines, Chemokines, and Growth Factors

    Time frame: Baseline, Week 4, and Week 8

    Change from baseline in circulating cytokines, chemokines, and growth factors. These will be quantified in plasma using enzyme-linked immunosorbent assays (ELISA) or multiplex immunoassays based on xMAP technology. Concentrations will be expressed in standard units (e.g., pg/mL)

  2. Change from baseline in advanced glycation end-products

    Time frame: Baseline, Week 4, and Week 8

    Change from baseline in tissue advanced glycation end-products (AGEs), assessed using skin autofluorescence.

  3. Change from baseline in methylation levels

    Time frame: Baseline, Week 4, and Week 8

    Genome-wide DNA methylation levels will be measured using Illumina BeadChips, which will be scanned on the iScan System. Methylation levels will be quantitatively determined from the fluorescence signals.

  4. Change from baseline in blood multi-omics profiles

    Time frame: Baseline, Week 4, and Week 8

    Blood-based multi-omics profiles, including proteomics and lipidomics, will be assessed using standard analytical platforms.

  5. Change from baseline in gut microbiome composition and fuctional capacity

    Time frame: Baseline and Week 8

    Gut microbiome composition and functional capacity will be characterized using short-read shotgun metagenomic sequencing of DNA extracted from stool samples. Changes from baseline to Week 8 will be assessed at the species and functional gene levels.

  6. Change from Baseline in Body Composition (Fat and Lean Mass)

    Time frame: Baseline, Week 4, and Week 8

    Body composition, including fat mass and lean mass, will be assessed using bioelectrical impedance analysis.

  7. Change from Baseline in Arterial Stiffness (Carotid-Femoral Pulse Wave Velocity)

    Time frame: Baseline, Week 4, and Week 8

    Carotid-femoral pulse wave velocity (cf-PWV) will be measured using applanation tonometry at the carotid artery combined with a thigh cuff.

  8. Change from baseline in sleep quality

    Time frame: Baseline, Week 4, and Week 8

    Sleep quality will be assessed using validated questionnaires, including the Pittsburgh Sleep Quality Index (PSQI) and the SATED questionnaire, as well as objective sleep metrics collected via the Oura Ring wearable device. Changes from baseline to each follow-up time point will be reported.

  9. Change from baseline in skin color and elasticity

    Time frame: Baseline, Week 4, and Week 8

    Skin color and elasticity will be assessed using a standardized colorimeter

  10. Change from baseline in oral health indicators

    Time frame: Baseline, Week 4, and Week 8

    Oral health status and mucosal condition will be assessed using validated questionnaires, including the Geriatric Oral Health Assessment Index (GOHAI) and the Modified CDC/AAP oral health questionnaires.

  11. Change from baseline in reproductive health

    Time frame: Baseline, Week 4, and Week 8

    Reproductive health will be assessed using validated questionnaires. For men, the Androgen Deficiency in Aging Males (ADAM) and Brief Sexual Function Inventory (BSFI) will be used; for women, the Female Sexual Function Index (FSFI) will be used.

  12. Change from Baseline in Waist and Hip Circumferences

    Time frame: Baseline, Week 4, and Week 8

    Waist and hip circumferences will be measured using a standardized measuring tape.

  13. Change from Baseline in Blood Pressure (Systolic and Diastolic)

    Time frame: Baseline, Week 4, and Week 8

    Brachial systolic and diastolic blood pressures will be measured using an automated cuff.

  14. Change from baseline in Physical activity levels

    Time frame: Baseline, Week 4, and Week 8

    Physical activity will be objectively measured using the Oura Ring wearable device, which passively tracks daily steps, activity intensity, and sleep duration throughout the intervention period.

  15. Change from Baseline in Quality of Life

    Time frame: Baseline, Week 4, and Week 8

    Quality of life will be assessed using the 36-Item Short Form Survey (SF-36) and EuroQol-5D-5L (EQ-5D).

  16. Change from baseline in Psychological Well-being

    Time frame: Baseline, Week 4, and Week 8

    Exhaustion will be evaluated using two items from the Center for Epidemiologic Studies Depression Scale (CES-D). Depression, anxiety, and stress levels will be measured using the 21-item Depression Anxiety and Stress Scale (DASS-21).

  17. Change from baseline in wellness

    Time frame: Baseline, Week 4, and Week 8

    Overall wellness will be assessed using a validated wellness questionnaire.

  18. Change from baseline in food intake

    Time frame: Baseline, Week 4, and Week 8

    Participants will record dietary intake using a 3-day food diary. Changes from baseline in nutrient and energy intake will be analyzed.

  19. Change from Baseline in Grip Strength

    Time frame: Baseline, Week 4, and Week 8

    Grip strength will be measured using a hand-held dynamometer (Jamar Plus+).

  20. Change from Baseline in Standard Clinical Blood Biomarkers

    Time frame: Baseline, Week 4, and Week 8

    Standard clinical blood tests, including hematology, liver and renal function profiles, lipid profile, glucose, HbA1c, insulin, and high-sensitivity C-reactive protein (hs-CRP), will be conducted by an accredited clinical laboratory.

Other outcomes

  1. Study participation and retention rates

    Time frame: 8 weeks

    Participation rate defined as the percentage of eligible participants enrolled, and dropout rate defined as the percentage of participants who discontinue the study and reasons for dropout.

  2. Adherence to sleep intervention

    Time frame: 8 weeks

    Adherence to the sleep intervention expressed as the number and percentage of nights with ≥7 hours of sleep, recorded using a wearable device.

  3. Adherence to fundamental supplementation

    Time frame: 8 weeks

    Adherence to whey protein, creatine, and fucoidan supplementation assessed as the number and percentage of prescribed doses taken, verified by counting and weighing returned supplement bottles.

  4. Adherence to augmented supplementation

    Time frame: 8 weeks

    Adherence to urolithin A, NMN, multivitamin, ergothioneine, or additional fucoidan assessed as the number and percentage of prescribed doses taken, verified by counting and weighing returned supplement bottles.

  5. Adherence to exercise and exergaming intervention

    Time frame: 8 weeks

    Adherence to the exercise intervention expressed as the number and percentage of aerobic training, strength training, and exergaming sessions attended, recorded by study staff.

Study contacts

Contact information is provided by the study sponsor or research team.

Ajla Hodzic Kuerec, MD, PhD

CONTACT

[email protected]

+65 91686091

Mazzarine Dotou, PhD

CONTACT

[email protected]

+65 87264704

Sponsors and collaborators

Lead sponsor

National University of Singapore

Other

Collaborators

  • Abinopharm, Inc
  • DoNotAge.org
  • Xprize Foundation

Registry information

Acronym: PROMETHEUS

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Mar 5, 2026
Registry last updated
Mar 5, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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