University of South Florida
This double-blind, randomized, placebo-controlled clinical trial will evaluate the effects of a probiotic fermented milk (PFM) drink on gut and brain health in individuals with Alzheimer's disease and related dementias (ADRD) and their caregivers. Up to 40 participants will be enrolled. Participants will be randomly assigned to consume either the PFM drink or a matched placebo daily for 30 days. The primary objective is to determine whether PFM consumption improves gut microbiome abnormalities. Secondary objectives include evaluating effects on nutrient absorption, gut microbiome diversity and composition, and systemic inflammation. The study will also explore relationships between changes in nutrient absorption, microbiome profiles, inflammation, and behavioral outcomes in participants with ADRD and their caregivers. Each participant will participate in the study for approximately 30 days. This pilot study is intended to generate preliminary clinical and biological data regarding the potential role of probiotic nutrition in supporting gut and brain health and to inform the design of future larger clinical trials.
This pilot clinical trial will investigate the effects of a human-origin probiotic fermented milk (PFM) beverage on biological pathways related to gut and brain health in individuals with Alzheimer's disease and related dementias (ADRD) and their caregivers. The study is based on evidence suggesting that alterations in the gut microbiome, nutrient metabolism, and systemic inflammation may be associated with cognitive and behavioral health and may represent modifiable targets in ADRD. Participants with ADRD and their caregivers will be enrolled as patient-caregiver dyads and independently rand…
Inclusion Criteria:• Diagnosed with ADRD and accompanied with their caregiver * Age ≥ 18 years old * Willing to consume PFM and/or willing to consume placebo drink, follow instructions of study team and sign consent form Exclusion Criteria: * Lactose intolerance or another intolerance that prevents the safe consumption of dairy products * Allergy to any ingredients in the PFM formulations, including almonds/nuts, lactose/dairy, dextrose, artificial sweeteners, or dyes used in flavoring * Known allergy or hypersensitivity to peanuts or soy, as indicated on the pectin product label. * Known a…
A human-origin probiotic fermented milk (PFM) drink has been developed for this clinical study. Over 1,000 human-derived probiotic strains were screened for gut and brain health effects using C. elegans, identifying 36 promising strains. These were further evaluated for growth in milk, fermentation capacity (pH reduction and coagulation), and effects on healthspan. Four strains with strong performance were selected: Limosilactobacillus reuteri HL278, Lactiplantibacillus plantarum HL279, Lacticaseibacillus paracasei HL260, and Lactiplantibacillus plantarum HL82. A multi-strain formulation was produced in a dedicated facility. The final PFM contains GRAS-designated probiotic strains and is manufactured for research use only in this study.
Participants will receive two 4-ounce servings of a placebo drink daily for 30 days. The placebo drink is matched in taste, appearance, and volume but does not contain active probiotic components.
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