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Probiotic Milk Drink for Gut and Brain Health in Older Adults and Caregivers (PFM)

28. srpna 2026 aktualizováno: University of South Florida

A Novel Probiotic Fermented Milk Drink to Improve Gut and Brain Health in Older Floridians and Their Caregivers

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.

Přehled studie

Postavení

Zatím nenabíráme

Podmínky

Intervence / Léčba

Detailní popis

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 randomized to receive either the PFM intervention or a matched placebo for 30 days. The PFM contains four human-origin probiotic strains: Limosilactobacillus reuteri HL278, Lactiplantibacillus plantarum HL279, Lacticaseibacillus paracasei HL260, and Lactiplantibacillus plantarum HL82.

Biological assessments will be performed before and after the intervention to characterize changes in the gut microbiome, nutrient-related measures, and systemic inflammation. Fecal microbiome composition will be evaluated using metagenomic sequencing and bioinformatics approaches to examine microbial diversity and taxonomic composition. Blood- and stool-based laboratory analyses will be used to assess selected nutrient and inflammatory biomarkers.

Clinical and behavioral measures will also be evaluated to explore whether biological changes associated with the intervention are related to measures of health, quality of life, agitation, stress, or anxiety in participants with ADRD and their caregivers. Analyses will compare changes between the PFM and placebo groups and explore relationships among microbiome characteristics, nutrient-related measures, inflammatory markers, and behavioral outcomes.

The study is intended to generate preliminary information regarding the biological effects and feasibility of the PFM intervention and to provide data that may inform the design of larger future clinical trials.

Typ studie

Intervenční

Zápis (Odhadovaný)

40

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

  • Jméno: Hariom Yadav, PhD
  • Telefonní číslo: 8139748222
  • E-mail: hyadav@usf.edu

Studijní záloha kontaktů

  • Jméno: Shalini Jain, PhD
  • Telefonní číslo: 813-9746281
  • E-mail: jains10@usf.edu

Studijní místa

    • Florida
      • Tampa, Florida, Spojené státy, 33612
        • Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL, 33620
        • Vrchní vyšetřovatel:
          • Hariom Yadav, PhD
        • Vrchní vyšetřovatel:
          • Shalini Jain, PhD
        • Kontakt:
          • Shalini Jain, PhD
          • Telefonní číslo: 813-9746281
          • E-mail: jains10@usf.edu
        • Kontakt:

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

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 allergy, intolerance, or hypersensitivity to Ensure® or any of its components.
  • Cancer patients receiving chemotherapy, due to potential increased risk of infection from GI tract damage
  • Participants who require systemic antibiotics after randomization will have the antibiotic use documented and will be withdrawn due to potential effects on the gut microbiome. Data collected prior to antibiotic use may be retained, and withdrawn participants will be replaced to maintain the target sample size.
  • Major surgery(ies) of the gut or brain within the past five years
  • Diagnosis of inflammatory bowel disease (IBD), ulcerative colitis, Crohn's disease, acid reflux, gastroesophageal reflux disease (GERD), Clostridium difficile infection (CDI), or any other gastrointestinal disease that could significantly change the microbiome History of fecal microbiota transplantation
  • Small intestinal bacterial overgrowth
  • History of anticipatory nausea, vomiting, constipation, or diarrhea
  • Antibiotic or probiotic or heavy yogurt (3 servings per day) use within the past 30 days

    o Probiotic use is defined as consumption of ≥108 CFU/day, in the form of tablets, capsules, lozenges, powders, or dairy products in which probiotics are a major ingredient

  • Critical or terminal illnesses including diabetes
  • Pregnant women will be excluded from the study based on self-report during the screening process. No pregnancy testing kits will be provided, and pregnancy testing will not be performed as part of this study. Therefore, individuals who are currently pregnant are excluded from participation.
  • Significant mental health conditions

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Čtyřnásobek

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Probiotics fermented milk

Participants will receive two 4-ounce servings of a probiotic fermented milk (PFM) drink daily for 30 days. The PFM drink contains probiotic strains intended to support gut microbiome balance, nutrient absorption, and gut-brain health.

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.

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.
Komparátor placeba: Placebo milk
ADRD and caregivers
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.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in Gut Microbiome Shannon Diversity Index
Časové okno: Baseline and Day 30

Change in gut microbiome alpha diversity from baseline to Day 30, quantified using the Shannon diversity index derived from whole-genome shotgun metagenomic sequencing of stool samples. A single change value will be calculated for each participant as the Day 30 Shannon diversity index minus the baseline Shannon diversity index.

Unit of Measure:

Shannon diversity index

Baseline and Day 30

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in Stool Lipocalin-2 Concentration
Časové okno: Baseline and Day 30

Change in stool lipocalin-2 concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: ng/g stool

Baseline and Day 30
Change in Stool Calprotectin Concentration
Časové okno: Baseline and Day 30

Change in stool calprotectin concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: µg/g stool

Baseline and Day 30
Change in Serum Monocyte Chemoattractant Protein-1 Concentration
Časové okno: Baseline and Day 30

Change in serum monocyte chemoattractant protein-1 (MCP-1) concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: pg/mL

Baseline and Day 30
Change in Serum Interleukin-1 Beta Concentration
Časové okno: Baseline and Day 30

Change in serum interleukin-1 beta (IL-1β) concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: pg/mL

Baseline and Day 30
Change in Serum Tumor Necrosis Factor-Alpha Concentration
Časové okno: Baseline and Day 30

Change in serum tumor necrosis factor-alpha (TNF-α) concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: pg/mL

Baseline and Day 30
Change in Serum Interleukin-6 Concentration
Časové okno: Baseline and Day 30

Change in serum interleukin-6 (IL-6) concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: pg/mL

Baseline and Day 30
Change in Serum C-Reactive Protein Concentration
Časové okno: Baseline and Day 30

Change in serum C-reactive protein (CRP) concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: µg/mL

Baseline and Day 30
Change in Serum Zinc Concentration
Časové okno: Baseline and Day 30

Change in serum zinc concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: µg/dL

Baseline and Day 30
Change in Serum Iodine Concentration
Časové okno: Baseline and Day 30

Change in serum iodine concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: µg/dL

Baseline and Day 30
Change in Serum Magnesium Concentration
Časové okno: Baseline and Day 30

Change in serum magnesium concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: mg/dL

Baseline and Day 30
Change in Serum Folate Concentration
Časové okno: Baseline and Day 30

Change in serum folate concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: ng/mL

Baseline and Day 30
Change in Serum Vitamin D3 Concentration
Časové okno: Baseline and Day 30

Change in serum vitamin D3 concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: ng/mL

Baseline and Day 30
Change in Serum Vitamin B12 Concentration
Časové okno: Baseline and Day 30

Change in serum vitamin B12 concentration from baseline to Day 30, calculated as the Day 30 value minus the baseline value.

Unit: pg/mL

Baseline and Day 30
Gut Microbiome Beta Diversity Assessed by Bray-Curtis Dissimilarity
Časové okno: Baseline and Day 30

Gut microbial community composition will be assessed at baseline and Day 30 using Bray-Curtis dissimilarity calculated from stool metagenomic sequencing data. Bray-Curtis dissimilarity will be used to evaluate differences in microbial community composition between intervention groups and study time points.

Unit of Measure:

Bray-Curtis dissimilarity

Baseline and Day 30
Change in EQ-5D Index Score in ADRD Participants
Časové okno: Baseline and Day 30

Change in EuroQoL-5D (EQ-5D) health utility index score from baseline to Day 30 in participants with ADRD. Responses across the EQ-5D health dimensions will be converted to a single health utility index score according to the instrument scoring procedure. The outcome will be the Day 30 index score minus the baseline index score.

Unit:

EQ-5D index score

Baseline and Day 30
Change in Cohen-Mansfield Agitation Inventory Total Score
Časové okno: Baseline and Day 30

Change in Cohen-Mansfield Agitation Inventory (CMAI) total score from baseline to Day 30 in participants with ADRD. Responses to individual CMAI items will be combined according to the instrument scoring procedure to generate one total agitation score at each time point. The outcome will be the Day 30 total score minus the baseline total score.

Unit:

CMAI total score

Baseline and Day 30
Change in Perceived Stress Scale Total Score in Caregivers
Časové okno: Baseline and Day 30

Description:

Change in Perceived Stress Scale (PSS) total score from baseline to Day 30 in caregivers. Individual PSS item responses will be combined according to the instrument scoring procedure to generate one total perceived stress score at each time point. The outcome will be the Day 30 total score minus the baseline total score.

Unit:

PSS total score

Baseline and Day 30
Change in State-Trait Anxiety Inventory State Anxiety Score
Časové okno: Baseline and Day 30

Description:

Change in the State-Trait Anxiety Inventory (STAI) State Anxiety score from baseline to Day 30 in caregivers. Responses to the State Anxiety items will be combined according to the instrument scoring procedure to generate one State Anxiety score at each time point. The outcome will be the Day 30 score minus the baseline score.

Unit:

STAI State Anxiety score

Baseline and Day 30
Change in State-Trait Anxiety Inventory Trait Anxiety Score
Časové okno: Baseline and Day 30

Description:

Change in the State-Trait Anxiety Inventory (STAI) Trait Anxiety score from baseline to Day 30 in caregivers. Responses to the Trait Anxiety items will be combined according to the instrument scoring procedure to generate one Trait Anxiety score at each time point. The outcome will be the Day 30 score minus the baseline score.

Unit:

STAI Trait Anxiety score

Baseline and Day 30

Další výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in SF-36 Physical Component Summary Score
Časové okno: Baseline and Day 30

Change in the Short Form-36 (SF-36) Physical Component Summary (PCS) score from baseline to Day 30 in caregivers. A single PCS summary score will be calculated at each time point, and the outcome will be the Day 30 PCS score minus the baseline PCS score. The SF-36 Mental Component Summary score is reported as a separate outcome measure.

Unit: PCS score

Baseline and Day 30
Change in SF-36 Mental Component Summary Score
Časové okno: Baseline and Day 30

Change in the Short Form-36 (SF-36) Mental Component Summary (MCS) score from baseline to Day 30 in caregivers. A single MCS summary score will be calculated at each time point, and the outcome will be the Day 30 MCS score minus the baseline MCS score. The SF-36 Physical Component Summary score is reported as a separate outcome measure.

Unit:

MCS score

Baseline and Day 30

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. září 2026

Primární dokončení (Odhadovaný)

1. října 2026

Dokončení studie (Odhadovaný)

20. října 2026

Termíny zápisu do studia

První předloženo

26. března 2026

První předloženo, které splnilo kritéria kontroly kvality

28. srpna 2026

První zveřejněno (Aktuální)

2. září 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

2. září 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

28. srpna 2026

Naposledy ověřeno

1. srpna 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • Study007845
  • 25A01 (Jiné číslo grantu/financování: Florida Department of Health)

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

Popis plánu IPD

We are conducting a small (n=24), likely enrollment (n=40) single-site pilot/clinical study. Data involves older adults and ADRD patients + caregivers (sensitive population)

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .