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Flavonoid

Fisetin for Improved Vascular Function in Aging

Phase 1 & 2
Recruiting
Led By Matthew J Rossman, PhD
Research Sponsored by University of Colorado, Boulder
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Age 65 years or older
Women must be postmenopausal
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 1 month

Summary

This trial tests if fisetin, a natural substance from fruits and vegetables, can improve blood vessel health and reduce artery stiffness in older adults. It works by making old cells act younger, reducing cell stress, and lowering inflammation. The study will also check if fisetin is safe and well-tolerated. Fisetin is a natural flavonoid found in various fruits and vegetables, known for its antioxidant, anti-inflammatory, and anti-carcinogenic properties.

Who is the study for?
This trial is for people aged 65 or older, specifically postmenopausal women and men with a BMI under 40. Participants should not have had significant weight changes recently, must be free of serious chronic diseases like unstable heart conditions, and agree to not donate blood during the study.
What is being tested?
The trial is testing fisetin, a flavonoid compound thought to improve blood vessel function and reduce stiffness in arteries among older adults. It will compare fisetin's effects against a placebo while exploring how it might work by affecting oxidative stress and other aging-related factors.
What are the potential side effects?
While specific side effects are not listed here, the trial will monitor how well participants can tolerate fisetin and any adverse reactions they experience. This includes checking for any discomfort or health issues that arise during treatment.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am 65 years old or older.
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I have gone through menopause.
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My weight has been stable for the last 2 months and I can keep it stable during the study.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~1 month
This trial's timeline: 3 weeks for screening, Varies for treatment, and 1 month for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Change from baseline in endothelial function at 1 month
Secondary study objectives
Change from baseline in aortic stiffness at 1 month
Other study objectives
Change from baseline in blood cell markers of cellular senescence at 1 month
Change from baseline in endothelial cell markers of cellular senescence at 1 month
Change from baseline in plasma markers of the senescence-associated secretory phenotype
+1 more

Trial Design

2Treatment groups
Active Control
Placebo Group
Group I: FisetinActive Control1 Intervention
Fisetin will be administered in an intermittent manner with two, three-day dosing periods at a dose of 2 mg/kg/day separated by two weeks.
Group II: PlaceboPlacebo Group1 Intervention
Placebo capsules identical in appearance to fistin capsules will be administered in an intermittent manner with two, three-day dosing periods separated by two weeks.

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Common treatments for arterial stiffness, such as those being studied with fisetin, work by decreasing mitochondrial oxidative stress, cellular senescence, and SASP factors. These mechanisms are crucial because they target the root causes of arterial stiffness. Reducing oxidative stress minimizes cellular damage and improves endothelial function. Addressing cellular senescence helps maintain the regenerative capacity of vascular tissues, and lowering SASP factors reduces inflammation and tissue degradation. Together, these effects enhance vascular health and reduce arterial stiffness, which is vital for patients to prevent complications and improve overall cardiovascular function.

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Logistics

Participation is compensated

You will be compensated for participating in this trial.

Who is running the clinical trial?

University of Colorado, BoulderLead Sponsor
124 Previous Clinical Trials
29,452 Total Patients Enrolled
10 Trials studying Aging
994 Patients Enrolled for Aging
American Heart AssociationOTHER
346 Previous Clinical Trials
4,971,463 Total Patients Enrolled
6 Trials studying Aging
367 Patients Enrolled for Aging
Matthew J Rossman, PhDPrincipal InvestigatorUniversity of Colorado, Boulder
3 Previous Clinical Trials
196 Total Patients Enrolled
1 Trials studying Aging
55 Patients Enrolled for Aging
~37 spots leftby Mar 2026