NCT07676435 · Cedars-Sinai Medical Center
Ongoing Lung Decline With Age Intensified Response
(OLD AIR)
What this study is about
This Phase II, randomly assigned, where neither patients nor doctors know which treatment is given, compared against an inactive treatment pilot study will evaluate the effects of fisetin, a senolytic flavonoid compound, on lung function and biomarkers of cellular senescence in older adults aged 60 years and older.
View original scientific description
This Phase II, randomized, double-blind, placebo-controlled pilot study will evaluate the effects of fisetin, a senolytic flavonoid compound, on lung function and biomarkers of cellular senescence in older adults aged 60 years and older. Participants will include individuals with a history of at least 10 pack-years of smoking as well as age-matched never-smokers. Forty participants will be randomized to receive either fisetin or placebo using a short-course "hit-and-run" dosing strategy (approximately 20 mg/kg/day orally for 2 consecutive days on Days 1-2 and Days 8-9).
Interventions
DRUG
Fisetin
Participants randomized to the experimental arm will receive oral fisetin capsules administered at a target dose of approximately 20 mg/kg/day for 2 consecutive days on Days 1-2 and again on Days 8-9. Fisetin will be supplied as 100 mg capsules and dosed according to body weight using a senolytic "hit-and-run" treatment approach.
DRUG
Placebo
Participants randomized to the control arm will receive matching placebo capsules administered orally on the same schedule as the fisetin arm (Days 1-2 and Days 8-9). Placebo will be used to maintain blinding and permit comparison of efficacy and safety outcomes between treatment groups.
Primary outcome measures
Forced Vital Capacity (FVC)
Time frame: Baseline and Day 14
Forced vital capacity measured by spirometry to assess lung function following treatment with fisetin versus placebo.
Forced Expiratory Volume in 1 Second (FEV1)
Time frame: Baseline and Day 14
Forced expiratory volume in one second measured by spirometry following treatment with fisetin versus placebo.
FEV1/FVC Ratio
Time frame: Baseline and Day 14
Ratio of FEV1 to FVC measured by spirometry following treatment with fisetin versus placebo.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adults aged 60 years and older who are physically capable of participating in study procedures;
- Willing to be randomized to fisetin or placebo; weight stable within the previous 2 months (\<5-pound change);
- No blood donation within 2 months before screening; absence of unstable chronic disease;
- Willing to maintain baseline activity level throughout the study;
- Body mass index \<30 kg/m²;
- Either a history of at least 10 pack-years of cigarette smoking or never-smoking status.
Exclusion criteria
- Electrocardiogram (ECG) abnormalities, including prolonged QTc.
- Use of fisetin, other flavonoid supplements, or known senolytic compounds within 6 months prior to screening.
- Resting systolic blood pressure \>160 mmHg or diastolic blood pressure \>110 mmHg.
- Known allergy or hypersensitivity to fisetin or any component of the study product.
- Active malignancy, except non-melanoma skin cancer.
- Clinically significant hepatic, renal, cardiovascular, endocrine, immunologic, metabolic, or other uncontrolled medical conditions that, in the opinion of the investigator, would interfere with study participation or interpretation of results.
- Clinically significant laboratory abnormalities, including severe anemia, leukopenia, thrombocytopenia, uncontrolled diabetes, advanced kidney disease, significant liver dysfunction, or evidence of systemic inflammation.
- Human immunodeficiency virus (HIV) infection, active hepatitis B or hepatitis C infection, or invasive fungal infection.
- History of diverticulitis or diverticulosis with gastrointestinal bleeding.
- Current use of systemic corticosteroids.
- Current use of warfarin.
- Current use of medications with significant interaction potential with fisetin, including selected CYP450 or transporter substrates, inhibitors, or inducers, unless such medications can be safely withheld according to protocol requirements.
- Recent medication, supplement, or lifestyle changes that may affect study outcomes, in the opinion of the investigator.
- Inability to perform required study procedures, including pulmonary function testing, exercise testing, or other protocol assessments.
- Unwillingness or inability to provide informed consent.
- Pregnancy or breastfeeding.
- Any other condition that, in the opinion of the investigator, would make participation unsafe or compromise study integrity.
Where
- Los Angeles, California
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 1, 2026 · Source of record for eligibility and locations