The Study
A single-center, double-blind, randomized, placebo-controlled, two-arm study to evaluate the safety and efficacy of once-weekly sirolimus (rapamycin) on muscle strength and endurance in older adults following a 13-week exercise program
This study is like a fair test where people were randomly given either a real pill or a fake one without knowing which. It can show if the real pill might help older adults get stronger when they exercise, but because only 40 people were in the study and it lasted just 13 weeks, we can’t be totally sure yet.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Older people did simple exercises at home for 13 weeks. Half took a pill called rapamycin once a week, half took a fake pill. Both groups got a bit stronger, but the pill didn’t help extra and might have slowed progress a little.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 562 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The results suggest the pill doesn’t boost exercise benefits in older adults and might slightly reduce them, but we can’t be sure because so few people were in the study.
- 240 people aged 65–85 did chair stands and cycling 3 times a week.
- 3After 13 weeks, both groups improved strength, but those on rapamycin improved slightly less on average.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Trials
Year
2024
Authors
B. Stanfield, Matt Kaeberlein, B. Leroux, Julie Jones, Ruth Lucas, B. Arroll
Related Content
Claims (6)
Taking 6 mg of sirolimus once a week might help reduce signs of aging and inflammation in older people, but we’re not sure yet and need bigger studies to confirm it.
Taking a weekly 6 mg dose of rapamycin might actually slow down strength gains in older people who are working out, even though both those on and off the drug get a bit stronger.
Taking a weekly 6 mg dose of sirolimus seems to be safe for older adults (65–85 years old) if they also do light home exercises for 13 weeks — most side effects were caught through check-ups and self-reports, but the study was too small to catch very rare ones.
Taking rapamycin with exercise might help improve muscle strength in older people by affecting a specific cell pathway in the body.
Taking a weekly low dose of a drug called rapamycin while doing a 13-week home exercise program might help older adults (65–85 years old) get stronger legs — but we’re not totally sure how much it helps because the study was small and short.
Taking a drug called sirolimus once a week might help older adults get stronger when combined with weight training, by giving muscles a break to clean out damaged parts between workouts — but we’re not sure yet if this actually works in people.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.