Trial of Pistachio Consumption in Older Adults (NCT06992544) | Clinical Trial Compass
Active — Not RecruitingNot Applicable
Trial of Pistachio Consumption in Older Adults
United States97 participantsStarted 2025-05-28
Plain-language summary
The goal of this study is to evaluate whether a pistachio-enriched diet leads to changes in cognitive function, cardiometabolic risk factors, and life satisfaction in older adults over a 6-month period.
Who can participate
Age range
65 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Active participant in COSMOS
. Current age 65 to 80 years
. Does not reside in the states of Arizona, Hawaii, or Wyoming (since Quest Diagnostics does not have locations in these states)
Exclusion criteria
. Tree nut allergy
. Current intake of pistachios, peanuts, walnuts, or other nuts \>1 serving/week
. Diagnosis of Alzheimer's disease or any other type of dementia
. Diagnosis of cancer or CVD (MI, stroke, CABG, PTCA, or stent) within last 12 months
. Changes in the dose or number of anti-hypertensive, lipid-lowering, or diabetic medications over the past 3 months prior to randomization
. Does not own a smartphone or tablet
. Unable or unwilling to abstain from pistachio intake for 6 months
. Unable or unwilling to limit nut consumption to ≤1 serving/week for 6 months
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.