Therapeutic plasma exchange in combination with intravenous immunoglobin reduces biological age

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A unique clinical trial clinical trial shows that therapeutic plasma exchange (TPE) combined with intravenous immunoglobin reduced on average 2.6 years as measured by multi-AMIC biomarkers. Results from the placebo-controlled, single-blind trial will be published in the May 28, 2025, issue of Aging Cell, providing prior data on the effects of TPE on biological age and supporting the potential for new disease and longevity applications. The research was led by scientists from Circulate Health, a company dedicated to harnessing the potential of TPE to advance human health and lifespan, and the Buck Institute for Research on Aging. …

Therapeutic plasma exchange in combination with intravenous immunoglobin reduces biological age

A unique clinical trial clinical trial shows that therapeutic plasma exchange (TPE) combined with intravenous immunoglobin reduced on average 2.6 years as measured by multi-AMIC biomarkers. The results of the placebo-controlled single-blind trial will be published in the May 28, 2025, issue ofAging cellProviding prior data on the effects of TPE on biological age and supporting the potential for new disease and longevity applications.The research was led by scientists from Circulate Health, a company dedicated to harnessing the potential of TPE to advance human health and lifespan, and the Buck Institute for Research on Aging.

Unfortunately, most so-called “longevity interventions” lack proven effectiveness in humans. By conducting clinical trials, we aim to make a difference. This study represents the first step in demonstrating that plasma exchange can significantly improve key mechanisms of biological aging. “

David Furman, PhD, senior author of the study and Buck Associate Professor and director of the institute's Bioinformatics and Data Science Core

Therapeutic plasma exchange is a procedure that separates, removes and replaces patients' plasma to treat certain diseases. The studyPresentexamined how TPE impacts biomarkers related to biological age, including changes in the epigenome, proteome, metabolome, glycome and immune system, as well as physical measures such as balance and strength. Research participants were assigned to one of four different treatment groups: 1) biweekly TPE, 2) biweekly TPE with intravenous immunoglobulin (IVIG), 3) monthly TPE, or 4) a control group.

The study found:

  • Patienten, die TPE erhielten, zeigten eine Verringerung des biologischen Alters, gemessen durch Multi-AMICS-Biomarker, wobei die signifikanten Verringerung der Patienten, die TPE mit IVIG erhielten. Die Teilnehmer, die sich einer zweiwöchentlichen TPE-IVIG-Behandlung unterziehen, zeigten eine durchschnittliche Reduzierung des biologischen Alters um 2,61 Jahre, verglichen mit 1,32 Jahren für diejenigen, die TPE erhielten.
  • Patienten, die TPE mit IVIG erhielten, veränderten Veränderungen in Immunzellen, die mit einem umgekehrten altersbedingten Immunabfall verbunden waren. Diese Intervention modulierte zelluläre Seneszenz-assoziierte Proteine ​​und stellte altersbedingte Verschiebungen der Immunzellzusammensetzung wieder her. Dies weist darauf hin, dass TPE mit IVIG die Fähigkeit des Körpers verbessern kann, Infektionen und andere altersbedingte Krankheiten zu bekämpfen, insbesondere solche, die mit Entzündungen zusammenhängen.
  • Personen mit Biomarkern im Zusammenhang mit einem schlechteren Gesundheitsstatus des Grundlinienliniens, einschließlich höherer Grundlinienspiegel für zirkulierende Bilirubin, Glucose und Leberenzyme, waren die größte Verringerung des biologischen Alters und die Verbesserung der Biomarker. Die Behandlung zeigte auch einen Nutzen für gesunde Personen, einschließlich Gleichgewicht und Stärke.
  • Während die beobachteten Behandlungseffekte nach den ersten drei Sitzungen am stärksten waren, zeigten nachfolgende Behandlungen abnehmende Renditen, was darauf hindeutet, dass der Abstand von Behandlungen oder die Kombination mit anderen Interventionen den langfristigen Nutzen verbessern kann.

“This is the first multi-OMICS interventional study to examine the effectiveness of therapeutic plasma exchange modalities,” said Brad Younggren, MD, CEO and co-founder of Circulate. “Our results show that plasma exchange and intravenous immunoglobulin are a powerful tool for rejuvenating biological age and provide compelling evidence that targeted plasma interventions can impact age-related molecular changes.”

"In this study, we examined thousands of molecular signatures to determine key drivers of rejuvenation. Our characterization builds a better understanding of which baseline biomarkers can predict treatment response in the future and build a foundation for personalized intervention plans for patients in the future," said Eric Verd, MD, president of the Buck Institute and the Co-founder. “We look forward to expanding our research to larger populations, increasing access to these treatments for eligible patients, and continuing to identify areas of unmet need where these therapies can make a meaningful difference.”


Sources:

Journal reference:

Fuentealba, M.,et al. (2025). Multi‐Omics Analysis Reveals Biomarkers That Contribute to Biological Age Rejuvenation in Response to Single‐Blinded Randomized Placebo‐Controlled Therapeutic Plasma Exchange. Aging cells. doi.org/10.1111/acel.70103.