Microbiota Interventions for Accelerated Aging in People with HIV on Alcohol
Official title: Geroprotective Precision Medicine Strategies in PWH That Use Alcohol
Run by Louisiana State University Health Sciences Center in New Orleans · NCT07462767 · Data updated 2026-11-12
This study tests whether two safe dietary supplements—Limosilactobacillus reuteri and blueberry extract—can affect immune aging markers in people with HIV who recently used alcohol.
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | 40 Years and up |
| Sex | All |
| Enrollment | 160 (estimated) |
| Sponsor | Louisiana State University Health Sciences Center in New Orleans Academic / other |
| Locations | 1 site (New Orleans, Louisiana) |
| Status | Recruiting |
| Started | September 1, 2026 |
| Main results expected | December 1, 2029 |
| Study ends | December 1, 2029 |
| Registry record updated | October 29, 2026 |
| Trial ID | NCT07462767 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults ≥40 years with HIV, recent alcohol use (≥42 g in the prior week and positive EtG), and no probiotic use or recent antibiotics/immunosuppressants.
✕Probably not a fit
Participants with conditions or medications that interfere with immune aging markers or who cannot comply with study procedures may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In this randomized, double-blind, crossover trial, adults with HIV who have recent alcohol use receive either Limosilactobacillus reuteri or blueberry extract for four weeks, then switch after a six-week washout. The study compares changes in immune senescence biomarkers within the same participant to see which intervention may influence aging-related immune changes. It is a mechanistic study focusing on immune aging rather than disease treatment, using GRAS supplements and a crossover design to control for individual differences. Biospecimens and clinical assessments occur at baseline and week 4 of each intervention period. Recruitment targets HIV care programs and community outreach in New Orleans.
Why it matters
Potential benefit: If successful, the interventions could provide a simple, safe approach to modulate immune aging in people with HIV who drink alcohol.
How similar studies have gone: Prior research has explored microbiota-based approaches for immune and metabolic effects, with mixed but growing evidence supporting microbiome-targeted strategies in immune-related endpoints.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥40 years * People with HIV * Recent alcohol use defined as ≥42 grams in the prior week and positive urine ethyl glucuronide (EtG) Exclusion Criteria: * Probiotic use in past 3 months * Recent antibiotics or immunosuppressives * Allergy to study products * Pregnancy or breastfeeding * Inability to comply
Where it's running
-
LSU Health
New Orleans, Louisiana, United States Recruiting
Study contacts
- Principal investigator: David A Welsh, MD — LSU Health New Orleans
- Study coordinator: David A Welsh, MD
- Email: dwelsh@lsuhsc.edu
- Phone: United States
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Reducing alcohol and trying a probiotic to improve thinking and brain glucose use in older high-risk drinkers
This study will test whether reducing alcohol with motivational interviewing plus taking a blinded probiotic or placebo can improve thinking and brain glucose metabolism in people ages 65–84 who drink heavily.
-
Reducing blood pressure in mid-life adults who binge drink
This study is testing whether an 8-week exercise program can help mid-life adults who binge drink lower their blood pressure and improve their overall health.
-
A study on brain health and aging in Bordeaux.
This study is trying to understand how different factors, like diet and health, affect brain aging and the risk of dementia in people aged 55 and older living in Bordeaux.
-
Using probiotics to reduce heart disease risk in people with HIV who drink heavily
This study is testing if a probiotic pill can help improve gut health and lower heart disease risk in people with HIV who drink heavily.
-
Aquatic power training dosing strategies and creatine in older adults
This trial tests whether different aquatic power training dosing methods and creatine supplementation help improve function in community-dwelling adults aged 60 and older.
-
Intergenerational Interaction Program for Nursing Home Residents and Nursing Students
A 6-week program pairs nursing home residents with nursing students to see if weekly joint activities can increase joy and reduce loneliness for older adults and lessen ageism in students.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.