NCT06199193

Brief Summary

Studies indicate that the intestinal microbiota could have an implication in Alzheimer's disease; recently, a positive relationship has been established between levels of bacterial lipopolysaccharide (LPS) and cerebral amyloidosis and a negative relationship between the production of the chain fatty acid cuts butyrate by the intestinal microbiota and cerebral amyloidosis. Currently there is no effective treatment for Alzheimer's, but studies indicate that a healthy diet such as the Mediterranean diet and physical exercise delay the symptoms of this disease. For all these reasons, it is postulated that introducing changes in the intestinal microbiota through diet may be a new treatment or serve as an adjuvant treatment for Alzheimer's disease.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable alzheimer-disease

Timeline
Completed

Started Feb 2024

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 5, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 10, 2024

Completed
22 days until next milestone

Study Start

First participant enrolled

February 1, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2025

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

December 9, 2024

Status Verified

April 1, 2024

Enrollment Period

1.2 years

First QC Date

December 5, 2023

Last Update Submit

December 4, 2024

Conditions

Keywords

Alzheimer's diseaseGut MicrobiotaPhysical exerciseArtificial intelligenceSupplementation

Outcome Measures

Primary Outcomes (1)

  • Fecal microbiota

    1. Differences in fecal microbiota between healthy controls and Alzheimer's disease participants 2. Changes in fecal microbiota in Alzheimer's disease participants before and after a nutritional intervention. Microbiota shotgun analysis

    Baseline, an average of 1.5 years from baseline and change after three months

Secondary Outcomes (6)

  • Dietary habits characterization

    Baseline, an average of 1.5 years from baseline and change after three months

  • Physical activity (PA) characterization

    Baseline

  • Blood lipopolysaccharide (LPS)

    Baseline, an average of 1.5 years from baseline and change after three months

  • Fecal Short chain fatty acids (SCFA)

    Baseline, an average of 1.5 years from baseline and change after three months

  • Metabolomic analysis

    An average of 1.5 years from baseline and change after three months

  • +1 more secondary outcomes

Study Arms (3)

Control Human patient (non-Alzheimer) with routine normal diet

NO INTERVENTION

Control human patients (60),non suffering from Alzheimer, will continue with their normal dietary habits and samples will be collected.

Alzheimer patients with routine normal diet and dietary counseling

SHAM COMPARATOR

Alzheimer patients (60) will continue with their routine normal diet and samples will be collected.

Dietary Supplement: Dietary counseling

Alzheimer patients with personalized diet

EXPERIMENTAL

Alzheimer patients (30) will be given personalized diet, with supplements based on the gut microbiota (elaborated through AI analyses) or a standard supplement (n=30) Samples will be collected.

Dietary Supplement: Personalized diet

Interventions

Personalized dietDIETARY_SUPPLEMENT

Personalized supplement designed by artificial intelligence based on the intestinal microbiota and incorporated into diets

Alzheimer patients with personalized diet
Dietary counselingDIETARY_SUPPLEMENT

Dietary advice will be provided to adapt the diet to the nutritional objectives and recommended intakes.

Alzheimer patients with routine normal diet and dietary counseling

Eligibility Criteria

Age60 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • to be able to give written consent signed jointly by the patient's legal representative following the rules of the clinical research ethics committee
  • minimum educational level (reading and writing)
  • proficiency of the language of the tests applied; adequate visual and auditory acuity, in the opinion of the researcher, to enable him/her to carry out the tests in the study (compensatory glasses and hearing aids are allowed
  • compliance with the diagnostic criteria of prodromal Alzheimer's Disease according to the criteria of the Institute on Aging- Alzheimer's Association \[NIA-AA\]: Global Deterioration Scale GDS≥ 2-3
  • Availability of a person ('caregiver') who has frequent and sufficient contact with the subject, so that he/she can provide precise information on the subject's day-to-day life, and attend the visits that are required by the study

You may not qualify if:

  • Suffer or have suffered from neurological (epilepsy, sleep disorders, etc.), psychiatric or any other type of pathology (sensory, hepatic, infectious, etc.) which, in the investigator's opinion, may affect their current cognition and functionality
  • Metabolic/endocrine disorders: Type I diabetes, the rest will not be excluded
  • Suffer from some type of pathology related to the gastrointestinal system or have undergone gastrointestinal surgery (ulcerative colitis, Crohn's disease, bariatric surgery)
  • Pre-menopause or perimenopause

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Hospital Universitario Puerta de Hierro

Majadahonda, Madrid, 28222, Spain

ENROLLING BY INVITATION

Hospital Clínico Universitario Virgen de la Arrixaca

Murcia, Murcia, 30120, Spain

RECRUITING

Related Publications (1)

  • Clemente-Velasco S, de Lucas B, Tabone M, Bressa C, Gonzalez-Soltero MDR, Martinez-Lopez S, Bailen M, Dominguez-Balmaseda D, Castellanos N, Diez GG, Noguera-Perea F, Marin-Munoz J, Sanchez-Alonso P, Rey AI, Galvez BG, Larrosa M. Study protocol for design of a personalized dietary supplement based on the gut microbiota of Alzheimer's patients and evaluation of its effects in a pilot randomized controlled trial. Front Nutr. 2025 Sep 23;12:1653841. doi: 10.3389/fnut.2025.1653841. eCollection 2025.

MeSH Terms

Conditions

Alzheimer DiseaseMotor Activity

Interventions

Nutrition Assessment

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersBehavior

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationEpidemiologic MeasurementsPublic HealthEnvironment and Public Health

Study Officials

  • Mar Larrosa, PhD

    Universidad Complutense de Madrid

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mar Larrosa, PhD

CONTACT

Juan Marín Muñoz, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Group 1: Control healthy humans with normal diet (n=30) Group 2: Alzheimer patients with normal diet (n=30). Group 3: Alzheimer patients with designed supplements(n=30)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 5, 2023

First Posted

January 10, 2024

Study Start

February 1, 2024

Primary Completion

April 1, 2025

Study Completion

December 31, 2025

Last Updated

December 9, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations