Tier 2 — strong

Evaluation of exploratory fluid biomarkers from a phase 1 senolytic trial in mild Alzheimer's disease

Valentina R Garbarino, Juan Pablo Palavicini, Justin Melendez, Nicolas R Barthelemy, Yingxin He, Tiffany F Kautz, Marisa Lopez-Cruzan, Julia J Mathews, Peng Xu, Bin Zhang, Afaf Saliba, Nagarjunachary Ragi, Kumar Sharma, Dallin Mason, Samuel Johnson, Suzanne Hendrix, Suzanne Craft, Ronald C Petersen, Jair Machado Espindola-Netto, Ailing Xue, Tamara Tchkonia, James L Kirkland, Arash Salardini, Nicolas Musi, Randall J Bateman, Mitzi M Gonzales, Miranda E Orr
Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics 2025 22(4):e00591

Bibliography

PubMed
PMID 40274471
PubMed Central
PMC12418413
Funding
Indexed grant support: R01 NS017950 — NINDS NIH HHS — United States; R01 AG077472 — NIA NIH HHS — United States; TL1 TR002647 — NCATS NIH HHS — United States; P30 AG044271 — NIA NIH HHS — United States; P30 AG072947 — NIA NIH HHS — United States. The indexed list may not contain the complete funding declaration.
Competing interests
Reported disclosure: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Ronald C. Petersen reports a relationship with University of Oxford, UpToDate, and Medscape that includes equity or stocks. Ronald C. Petersen reports personal stock in AbbVie. reports personal fees from Roche, Genetech, Eli Lilly, and Nestle, and no personal fees from Eisai, outside of the submitted work. Suzanne Craft reports a relationship with TD3 Therapeutics and Neurodegenerative Consortium that includes board membership. Suzanne Craft reports a relationship with vTv Therapeutics, Cylcerion, T3D Therapeutics, and Cognito Therapeutics, outside the submitted work that includes equity or stock. Randall J. Bateman reports a relationship with C2N Diagnostics and receives income from serving on the scientific advisory board as a co-founder. Randall J. Bateman has received research funding from Avid Radiopharmaceuticals, Janssen, Roche/Genentech, Eli Lilly, Eisai, Biogen, AbbVie, Bristol Myers Squibb, and Novartis. Mitzi M. Gonzales reports personal stock in Abbvie. James L. Kirkland and Tamara Tchkonia are co-investigators on a patent Treating Cognitive Decline and Other Neurodegenerative Conditions by Selectively Removing Senescent Cells from Neurological Tissue and a patent for Treating Cognitive Decline and Other Neurodegenerative Conditions by Selectively Removing Senescent Cells from Neurological Tissue that are held by Mayo Clinic with royalties paid to Mayo Clinic by Unity Biotechnologies. Dallin Mason, Samuel Johnson, and Suzanne Hendrix are employees of Pentara Corporation which provides consulting to over 30 pharmaceutical, biotech, non-profit, and academic groups doing clinical research in neurodegenerative disorders. Suzanne Hendrix is the founder, owner, and CEO of Pentara Corporation. Washington University has equity ownership interest in C2N Diagnostics and receives royalty income based on technology (Stable Isotope Labeling Kinetics, Blood Plasma Assay, and Methods of Diagnosing AD with Phosphorylation Changes) licensed by Washington University to C2N Diagnostics. Miranda Orr has patent Biosignature and Therapeutic Approach for Neuronal Senescence pending. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Study snapshot

DesignExploratory secondary biomarker analysis of an open-label phase 1 trial
ModelHuman intervention research
Sample5 participants with early Alzheimer's disease
InterventionDasatinib plus quercetin; parent study NCT04063124
DurationParent-trial baseline to post-treatment sampling
EndpointsLipid measurements; Inflammatory measures

What the study showed, in plain terms

Published in 2025, this source examined senescence and longevity. Design: Exploratory secondary biomarker analysis of an open-label phase 1 trial. Sample/model: 5 participants with early Alzheimer's disease. The exposure or intervention was Dasatinib plus quercetin; parent study NCT04063124. Follow-up or treatment period: Parent-trial baseline to post-treatment sampling.

Amyloid and tau measures remained stable. Some inflammatory, lipid and transcriptomic measures changed, with independent validation still required.

Uncontrolled exploratory analyses from the same five-person cohort as the main feasibility report. They are not a separate efficacy trial.

Continue with Quercetin Data Center

For topic-level interpretation, read Is Quercetin a Senolytic? Human Evidence vs Longevity Claims. This is a related guide; the citation panel separately identifies articles that directly cite this paper.

Key findings

  • Amyloid and tau measures remained stable.
  • Some inflammatory, lipid and transcriptomic measures changed, with independent validation still required.
  • The recorded outcome domains were Lipid measurements; Inflammatory measures.
  • The result applies to the tested exposure: Dasatinib plus quercetin; parent study NCT04063124; Parent-trial baseline to post-treatment sampling.

What this study can and cannot tell us

  • Uncontrolled exploratory analyses from the same five-person cohort as the main feasibility report. They are not a separate efficacy trial.
  • Without a sufficiently blinded concurrent control, time effects, expectations, co-interventions and regression toward the mean can explain part of an apparent improvement.
  • Companion or correction records are linked below. They should not be counted automatically as independent replications; see the individual source notes for the relationship.
  • Source basis: Source check: accessible full text and indexed metadata. Missing method details, funding information or participant denominators are not inferred.

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