By InvitationNot Applicable

Gut Microbiome Profiling in Patients With Chronic Heart Failure

United States150 participantsStarted 2018-08-01

Plain-language summary

The goal of this observational study is to learn about the composition and function of the gut microbiome in adults with chronic heart failure with reduced ejection fraction. The main questions the study aims to answer are: 1. How does the gut microbiome and its interactions with the host change over time in adults with chronic heart failure? 2. How do these changes relate to heart failure disease severity and complications?

Who can participate

Age range

18 Years – 75 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: * Heart failure with reduced ejection fraction (left ventricular ejection fraction less than 50%) * Non-ischemic cardiomyopathy * Body mass index (BMI) 18-40 kg/m2 Exclusion Criteria: * Treated diabetes * Advanced kidney disease * Cirrhosis * Significant gastrointestinal disease including any history of inflammatory bowel disease * History of extensive bowel resection * Active malignancy or systemic chemotherapy within the past 12 months * Active infection * Current or recent (within 4 weeks) use of systemic antibiotics, commercial probiotics, immunosuppressive or immunomodulatory medications * Pregnancy/lactation

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

Advanced heart failure-associated microbiome signatures

Timeframe: 24 months from baseline visit

Temporal changes in the gut microbiome community composition in chronic heart failure

Timeframe: 12 months from baseline visit

Trial details

NCT IDNCT06361524

SponsorStanford University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2028-12

View on ClinicalTrials.gov More Heart Failure With Reduced Ejection Fraction trials