Clinical trial Recruiting at 2 sites Interventional Ages 21 and up

Effects of Alcohol Consumption on Atrial Fibrillation Episodes

Official title: Full-Avoidance vs. Permissive/Regulated Drinking & Outcomes On Fibrillation (FULL-PROOF)

Run by University of California, San Francisco · NCT06754176 · Data updated 2026-11-12

This study is testing whether drinking small to moderate amounts of alcohol affects how often people with paroxysmal atrial fibrillation have episodes of irregular heartbeats.

More Atrial Fibrillation (AF) trials

Quick facts

Study typeInterventional
Ages21 Years and up
SexAll
Enrollment100 (estimated)
SponsorUniversity of California, San Francisco
Academic / other
Locations2 sites (San Francisco, California and 1 other locations)
StatusRecruiting
StartedApril 17, 2025
Main results expectedDecember 2026
Study endsAugust 2029
Registry record updatedDecember 23, 2025
Trial IDNCT06754176 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals diagnosed with paroxysmal AFib who consume alcohol at least once a week and are comfortable using a smartphone.

Probably not a fit

Patients with a history of alcohol addiction, liver disease, or those currently pregnant may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the short-term effects of minimal and moderate alcohol consumption on episodes of paroxysmal atrial fibrillation (AFib) in participants. Using a case-crossover randomized design, participants will be assigned daily to either avoid or consume alcohol over a 14-day monitoring period. They will wear various monitoring devices, including an ECG monitor and an alcohol monitor, while completing daily surveys to assess their alcohol intake and heart rhythm. The goal is to determine if allowing alcohol consumption increases the occurrence of AFib episodes.

Why it matters

Potential benefit: If successful, this study could provide insights into safe alcohol consumption levels for patients with paroxysmal AFib.

How similar studies have gone: While there have been studies on alcohol and AFib, this specific randomized approach to assess real-time effects is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria

* Comfortable reading and writing in English
* Have a smartphone and willing and able to use the Eureka mobile application
* Currently diagnosed with paroxysmal AFib without a plan to change their AFib management during the two-week monitoring period
* At least one episode of AFib in the past month OR, in the judgement of a healthcare provider, could potentially have one episode of AF in the next month
* Drank alcohol at least 1 day/week on average in the past month
* Willing and able to be randomly assigned daily to avoid or not avoid drinking alcohol over a 2-week period
* Willing and able to provide written informed consent

Exclusion Criteria

* Only post-operative AFib
* Greater than 40% ventricular pacing
* History of alcohol addiction or abuse determined by self-reported history or AUDIT-C score
* Intolerance to alcohol
* History of liver disease
* Currently incarcerated
* Currently pregnant or trying to get pregnant

Where it's running

  • UCSF Medical Center at Parnassus
    San Francisco, California, United States
    Recruiting
  • UCSF Medical Center at Mission Bay
    San Francisco, California, United States
    Recruiting

Study contacts

  • Principal investigator: Gregory Marcus, MD, MAS — University of California, San Francisco
  • Study coordinator: Gregory M Marcus, MD, MAS
  • Email: greg.marcus@ucsf.edu
  • Phone: 415-476-5706

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.