CompletedNot Applicable

Data Analysis for Drug Repurposing for Effective Alzheimer's Medicines - (DREAM) Probenecid vs Allopurinol

United States294,878 participantsStarted 2021-02-01

Plain-language summary

This study aims to evaluate the comparative risk of dementia/Alzheimer's disease onset between patients treated with medications that target specific metabolic pathways and patients treated with alternative medications for the same indication.

Who can participate

Age range

18 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.

Please see https://docs.google.com/spreadsheets/d/1N3IVoirGdWS7OiKiOWWgPHhgsSxX7SWDIhpeeZ-Ft7c/edit?usp=sharing or Appendix A for full code and algorithm definitions. Medicare timeframe: 2007 to 2017 (end of data availability). Inclusion Criteria: * 1\. No prior use of urate-lowering agents, including probenecid and allopurinol anytime prior to cohort entry date * 2\. Enrollment in Medicare Part A, B, and D with no HMO coverage for 365 days prior to and including cohort entry date Exclusion Criteria: * 1\. Prior history of dementia measured anytime prior to cohort entry date * 2\. No prior history of gout recorded in the 365 days prior to cohort entry date * 3\. Prior history of nursing home admission in the 365 days prior to the cohort entry date

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.

What they're measuring

Time to Dementia Onset

Timeframe: Median follow up times: 1) 36 days (exp), 214 days (ref) 2) 1095 days (exp), 1095 days (ref) 3) 565 days (exp), 372 days (ref) 4) 36 days (exp), 248 days (ref)

Trial details

NCT IDNCT04746989

SponsorBrigham and Women's Hospital

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2023-07-17

Results submitted2025-07-25

View on ClinicalTrials.gov More Gout trials

Who can participate

Age range

18 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.