Two caveats govern every page on this site. (1) Telomere length is a contested aging biomarker — it is measured differently by different methods, varies between tissues, and "longer" is not straightforwardly "healthier"; changing a telomere-length or telomerase-activity number in a trial is not the same as slowing human aging. (2) Activating telomerase is not risk-free — telomerase expression is low in many differentiated normal tissues, while some normal proliferating cells can express it. Cancer can also use telomere maintenance; the included human records do not resolve long-term cancer risk from pharmacological activation. Tellingly, the FDA-approved telomerase inhibitor — imetelstat (RYTELO, 2024) — inhibits telomerase to treat cancer (lower-risk MDS), the opposite direction from the anti-aging "activation" narrative.
○ Published synthesis: source-integrity concerns; no efficacy grade assigned

Record verify: source publication identified; see evidence and limitations

DesignPublished systematic review/meta-analysis with documented original-study discrepancies
PMID41286474
PMCIDPMC12644169
DOI10.1007/s10565-025-10115-6
Citation statusOriginal publication identity matched by title, author and DOI; relevant full-text sections, results and limitations examined 2026-10-14. The review is a real publication, but its included-study table contradicts original trial designs and interventions. Reported pooled results must be read with the source-integrity limitations stated here.

Five-qualifier claim

Species / populationThe review reports 8 RCTs and 750 participants, but its Table 1 materially disagrees with the cited original papers; these are reported review figures, not independently validated pooled trial counts.
Exposure, route, scheduleThe review describes TA-65 10–50 mg/day, but the included-study table lists non-TA-65 and non-randomized sources as completed TA-65 RCTs. This exposure summary cannot be relied on as a verified trial set.
Comparator / durationPublished meta-analysis, not an original randomized trial. Table 1 labels Harley 2011 an RCT although its original paper has no control group; it labels Lavretsky 2013 a TA-65 trial although that paper randomized meditation versus music.
Endpoint / numeric resultThe paper reports telomere-length SMD 0.47, frailty SMD 0.09 (p=0.15), and CRP/IL-6 SMD −0.11 (p=0.07); the latter two are not statistically significant. Material trial-identification, sample-size and intervention discrepancies in its Table 1 prevent treating any of these pooled numbers as a reliable estimate of TA-65 efficacy or safety.
What it did NOT establishPublication identifiers are genuine (PMID 41286474, PMCID PMC12644169). This does not validate the underlying pooled evidence. The original cited study identities conflict with Table 1; no dependable clinical or lifespan conclusion should be drawn from this synthesis without resolution.

Primary reference

https://pubmed.ncbi.nlm.nih.gov/41286474/

Each identifier above was confirmed against the primary record; the citation status names the source and the date. An identifier that could not be confirmed is left empty and named as such in the record, never filled in from a secondary source.