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FAXAGE: Fasting And Exercise To Slow Aging In Humans

FAXAGE: A Randomized, Controlled Clinical Trial Of Fasting And Exercise To Slow Aging In Humans

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07207044
Acronym
FAXAGE
Enrollment
240
Registered
2025-10-03
Start date
2025-10-01
Completion date
2042-08-30
Last updated
2026-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Aging, Healthy Aging, Aging Frailty

Brief summary

FAXAge is a randomized controlled trial investigating the effects of fasting and exercise on human aging. 240 participants over the age of 65 will be divided into 4 groups - an exercise group, a fasting group, a combined exercise and fasting group and a control group. The intervention will last for one year, and tests of biomarkers of aging will be performed at baseline, after 3 months, 6 months and at the end of the intervention. A reference group of participants over the age of 20 equally distributed by age and sex will be used to train an algorithm for determination of biological age. The study will include both physical, molecular and digital biomarkers including DNA-methylation, VO2max, body composition and face- and voice-age. The main outcome of the project is DNA-methylation age at week 52. Secondary outcomes are the rest of the tested biomarkers at week 52. It is hypothesised that the intervention groups will have similar superior benefits after the 52 weeks of intervention.

Interventions

BEHAVIORALExercise - Strength + Cardio

Supervised strength training 2x/week + self-administered cardio training 2x/week.

Time-restricted feeding in a 16/8 regimen - 16 hours of fast and 8 hours of eating per day.

BEHAVIORALTime-restricted feeding + Exercise

Strength and cardio exercise 2x/week each combined with time-restricted feeding in a 16/8 regimen.

Sponsors

University of Copenhagen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Provision of signed and dated informed consent * Stated willingness to comply with all study procedures and availability for the duration of the study * Aged \>20 years * In good general health meaning maximally 1 well-managed chronic disease * Non-smoker.

Exclusion criteria

* Inability or unwillingness to adhere to the TRF regiment * Inability or unwillingness to perform the prescribed physical exercise * Treatment with other investigational drug or intervention within 1 year * \>1 hour of systematic strenuous exercise or strength training a week * Current time-restricted eating habits * Severe or dysregulated medical disease (i.e. active cancer, uncontrolled diabetes, severe pulmonary or heart disease) * \>1 well-managed chronic disease * Smoker * Use of systemic glucocorticoids, androgens or antiandrogens.

Design outcomes

Primary

MeasureTime frameDescription
DNA-methylation ageFrom enrollment until end of intervention at 52 weeksChanges in predicted biological age from baseline based on DNA-methylation from isolated peripheral blood mononucleated cells after 52 weeks of intervention

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026