The compiled studies do not establish human lifespan benefit. Lifespan extension in this collection comes from animal studies. The compiled human studies include small pilots and early-phase studies with feasibility, biomarker, or disease endpoints — including one failed Phase 2. Every intervention page shows this plainly.

Interventions

Study records

Mechanisms

Evidence tiers

TierLabelNote
1Human lifespan-endpoint RCTRandomized human lifespan endpoint. No lifespan benefit established by the studies compiled here.
2Human RCT — disease or biomarker endpointRandomized, but endpoint is a disease score or biomarker, not lifespan.
3Human open-label pilot (feasibility / biomarker)Small, non-randomized; feasibility, tolerability, or senescent-cell biomarker change.
4Human observational / mechanisticCohort, cross-sectional, or ex-vivo human tissue.
5Animal lifespan studyMedian or maximum lifespan change in an animal model. Replication across independent publications is not required at this tier and is not implied by it; where a result has been replicated, the record says so explicitly.
6Animal healthspan / mechanism studyFunction, pathology, or senescent-cell clearance in an animal model; not a lifespan endpoint.
7In vitro / ex vivoCell-culture senolysis or mechanism; no whole-organism outcome.