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

28 agosto 2026 aggiornato da: 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.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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.

Tipo di studio

Interventistico

Iscrizione (Stimato)

40

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

  • Nome: Hariom Yadav, PhD
  • Numero di telefono: 8139748222
  • Email: hyadav@usf.edu

Backup dei contatti dello studio

  • Nome: Shalini Jain, PhD
  • Numero di telefono: 813-9746281
  • Email: jains10@usf.edu

Luoghi di studio

    • Florida
      • Tampa, Florida, Stati Uniti, 33612
        • Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL, 33620
        • Investigatore principale:
          • Hariom Yadav, PhD
        • Investigatore principale:
          • Shalini Jain, PhD
        • Contatto:
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Quadruplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 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.
Comparatore placebo: 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.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Gut Microbiome Shannon Diversity Index
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Stool Lipocalin-2 Concentration
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in SF-36 Physical Component Summary Score
Lasso di tempo: 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
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 settembre 2026

Completamento primario (Stimato)

1 ottobre 2026

Completamento dello studio (Stimato)

20 ottobre 2026

Date di iscrizione allo studio

Primo inviato

26 marzo 2026

Primo inviato che soddisfa i criteri di controllo qualità

28 agosto 2026

Primo Inserito (Effettivo)

2 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

2 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 agosto 2026

Ultimo verificato

1 agosto 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • Study007845
  • 25A01 (Altro numero di sovvenzione/finanziamento: Florida Department of Health)

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano 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)

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .