Effect of Mediterranean Diet and Probiotics in Adults With Mild Cognitive Impairment

NCT ID: NCT05029765

Last Updated: 2021-09-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-26

Study Completion Date

2020-03-05

Brief Summary

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Manipulation of the gut microbiota through dietary modification affects brain function, with improvement in patients with cognitive disorders. Combined effect of nutritional intervention with Mediterranean diet and probiotics with potentially healthy growth of germ, affect the evolution of mild cognitive impairment, by the modulation of components related with the axis microbiota-gut-brain: neuropeptides, short-chain fatty acids, markers for oxidative stress and inflammation.

Detailed Description

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Conditions

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Mild Cognitive Impairment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

50 men and women with mild cognitive impairment and more than 60 years will follow three dietary intervention periods of 24 weeks each, with a randomized crossover design. Dietary periods will be: 1.- Healthy diet (WHO recommendations) + placebo; 2.- Mediterranean diet + placebo and ; 3.- Mediterranean diet "plus" (Mediterranean diet + Biopolis-MIX42 (a capsule containing 10\^9 colony forming units of Lactobacillus rhamnosus and Bifidobacterium longum)).
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Healthy diet Arm

Healthy diet (WHO recommendations) + placebo

Group Type PLACEBO_COMPARATOR

Healthy diet (WHO recommendations)

Intervention Type DIETARY_SUPPLEMENT

Recommendations according to WHO

Placebo

Intervention Type DIETARY_SUPPLEMENT

Placebo

Mediterranean diet Arm

Mediterranean diet + placebo

Group Type PLACEBO_COMPARATOR

Mediterranean diet

Intervention Type DIETARY_SUPPLEMENT

Mediterranean diet:

22% Monounsaturated fat, 6% Polyunsaturated fat, 7% Saturated fat, 15% Protein, 50% Carbohydrates

Placebo

Intervention Type DIETARY_SUPPLEMENT

Placebo

Mediterranean diet "plus" Arm

Mediterranean diet + Biopolis-MIX42 (1 capsule per day containing 10\^9 colony forming units of Lactobacillus rhamnosus and Bifidobacterium long).

Group Type ACTIVE_COMPARATOR

Mediterranean diet

Intervention Type DIETARY_SUPPLEMENT

Mediterranean diet:

22% Monounsaturated fat, 6% Polyunsaturated fat, 7% Saturated fat, 15% Protein, 50% Carbohydrates

Biopolis-MIX42

Intervention Type DIETARY_SUPPLEMENT

Biopolis-MIX42: a capsule containing 10\^9 colony forming units of Lactobacillus rhamnosus and Bifidobacterium longum.

Interventions

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Mediterranean diet

Mediterranean diet:

22% Monounsaturated fat, 6% Polyunsaturated fat, 7% Saturated fat, 15% Protein, 50% Carbohydrates

Intervention Type DIETARY_SUPPLEMENT

Healthy diet (WHO recommendations)

Recommendations according to WHO

Intervention Type DIETARY_SUPPLEMENT

Placebo

Placebo

Intervention Type DIETARY_SUPPLEMENT

Biopolis-MIX42

Biopolis-MIX42: a capsule containing 10\^9 colony forming units of Lactobacillus rhamnosus and Bifidobacterium longum.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Age\> = 60 years with mild cognitive impairment (Clinical Dementia Rating (CRD) 0.5; Mini Mental Examiantion de Folstein (MMSE)\> 23; Repeatable Battery for the Asessment of Neuropsychological Status (RBANS) \<= 85)
* Drugs with a stable dose from a minimum of 4 weeks prior to screening (excluding psychopharmaceuticals and any other that could affect alertness and cognitive ability)
* Geriatric depression scale score \<6
* Sufficient visual and auditory abilities to carry out the neuropsychological tests. Good health without diseases that prevent the completion of the study.
* A minimum educational training established for 6 years or similar work history.
* A familiar informant or close caregiver with a minimum contact with the patient established in 10 hours per week that can accompany the participant to the clinical visits

Exclusion Criteria

* Any uncontrolled medical or neurological condition that, in the opinion of the researcher, could contribute to the subject's cognitive impairment (for example, substances abuse, vitamin B12 deficiency, abnormal thyroid function, stroke, or other Cerebral vascular disease, Lewy body dementia, frontotemporal dementia, TBI).
* A clinically significant psychiatric illness (eg, major depression, schizophrenia, or bipolar affective disorder) in the 6 months prior to screening.
* Transient ischemic attack or cerebrovascular accident or any unexplained loss of consciousness in 1 year before selection (in case of vascular deficit with cognitive sequelae that may still be reversible).
* Poorly controlled diabetes mellitus, due to a glycosylated haemoglobin (HbA1c) value of 8% in the selection.
* History of unstable angina, myocardial infarction, chronic heart failure (New York Heart Association Class 3 or 4), or clinically significant conduction disorders (unstable atrial fibrillation) within 1 year prior to screening.
* Uncontrolled hypertension defined as the mean of 3 measures of systolic blood pressure / diastolic blood pressure\> 165/100 mmHg, and persistent systolic blood pressure / diastolic blood pressure \> 180/100 mmHg in the 3 months prior to randomization which were considered by the researcher as an indicative of chronic uncontrolled hypertension.
* History of seizures in the 10 years prior the selection.
* Recent history (within 1 year of screening) of alcohol or substance abuse with positive urine test (looking for non-prescription drugs), alcohol or cannabinoids.
* Patients with chronic diseases will be excluded: severe psychiatric, chronic processes in need of treatment such as chronic kidney failure, chronic liver disease, neoplasms under treatment, chronic obstructive pulmonary disease, endocrinopathies susceptible to decompensation and digestive tract diseases.
Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pablo Pérez Martínez

OTHER

Sponsor Role lead

Responsible Party

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Pablo Pérez Martínez

Investigator-in-charge at Nutrigenomics Metabolic Syndrome group

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Pablo Perez-Martinez, PhD, MD

Role: PRINCIPAL_INVESTIGATOR

IMIBIC/ Reina Sofia University Hospital / University of Cordoba

Locations

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Reina Sofia University Hospital

Córdoba, , Spain

Site Status

Countries

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Spain

References

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Cardelo MP, Corina A, Leon-Acuna A, Quintana-Navarro GM, Alcala-Diaz JF, Rangel-Zuniga OA, Camargo A, Conde-Gavilan C, Carmona-Medialdea C, Vallejo-Casas JA, Carmona-Asenjo E, Ochoa-Sepulveda JJ, Aguera-Morales E, Delgado-Lista J, Katsiki N, Lopez-Miranda J, Perez-Jimenez F, Yubero-Serrano EM, Perez-Martinez P. Effect of the Mediterranean diet and probiotic supplementation in the management of mild cognitive impairment: Rationale, methods, and baseline characteristics. Front Nutr. 2022 Dec 8;9:1037842. doi: 10.3389/fnut.2022.1037842. eCollection 2022.

Reference Type DERIVED
PMID: 36570150 (View on PubMed)

Other Identifiers

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PI16/01777

Identifier Type: -

Identifier Source: org_study_id

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