NCT05950009

Brief Summary

Background: There are epidemiological and preclinical studies in vivo that support the biological plausibility of the association between periodontal diseases and major depression (DM), through the hypothesis of a "leaky mouth" by periodontitis as a source of neuroinflammation. Therefore, this association should be studied in depth in carefully designed cross-sectional studies in humans to specifically assess this relationship. Objectives: Primary: determine if periodontitis can be associated with the development of DM. Secondary: (1) to estimate the prevalence of periodontal diseases (gingivitis and periodontitis) in patients with and without DM; (2) to determine whether oral, periodontal, and fecal (bacterial, viral, and fungal) metagenomic microbiomes, inflammatory mediators, and intestinal barrier integrity are associated with periodontal and mental health variables. Material and method: A cross-sectional analytical study with two groups is designed:

  • Control group (without DM): subjects without known mental health pathologies will be included, who present a PHQ-9 index of 5 or less. They will be recruited from the control group of a population-based study PsychoBioma TRIAD (C.P. PSQ-19-2 - C.I. 19/474-E). They will be matched by age, gender, and socioeconomic status.
  • Group of cases (MD patients): subjects with moderate DM will be selected, characterized by HPQ9 index values of 9 or higher. They will be selected among those patients who attend the Mental Health consultations associated with the San Carlos Clinical Hospital. The study will consist of three visits:
  • Visit in Mental Health Consultations: in this visit the subject will be evaluated to determine if he meets the eligibility criteria. You will be informed of the purpose of the study and you will be invited to participate and sign the informed consent. After that, a structured clinical interview for the DSM-IV (SCID) will be conducted and the subject will fill in a series of specific scales on a study-specific electronic device \[Beck Depression Inventory (BDI); UCLA Loneliness Scale, Center for Epidemiologic Studies Depression scale \[CES-D\]; Childhood Trauma Questionnaire short form (CTQ-SF); The World Health Organization Quality of Life questionnaire (WHOQOL); Hamilton scale (HAM-D17); Global Assessment of Functioning (GAF) Scale\].
  • Dental School Visit: Subject will receive a comprehensive periodontal examination. A subgingival microbiological sample, a saliva sample and a blood sample will also be taken. The patient will be given a specific vial to collect stool samples.
  • At the participant's home: the stool samples will be deposited by the participants at home in the specific collection vial.

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
122

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Feb 2024

Typical duration for all trials

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 3, 2023

Completed
15 days until next milestone

First Posted

Study publicly available on registry

July 18, 2023

Completed
7 months until next milestone

Study Start

First participant enrolled

February 20, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

May 10, 2024

Status Verified

May 1, 2024

Enrollment Period

1.9 years

First QC Date

July 3, 2023

Last Update Submit

May 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Periodontitis (presence/absence)

    With the clinical and radiological information, the periodontal diagnosis of the patients will be established according to the 2018 classification of periodontal and peri-implant diseases), which involves determining the stage (I to IV), the extent of the stage (localized, generalized or incisor-molar pattern) and the grade (A, B or C).

    Baseline

Secondary Outcomes (11)

  • Childhood Trauma Questionnaire short form (CTQ-SF)

    Baseline

  • UCLA Loneliness Scale (Spanish version)

    Baseline

  • The World Health Organization Quality of Life questionnaire (WHOQOL)

    Baseline

  • Beck Depression Inventory (BDI)

    Baseline

  • Centre for Epidemiologic Studies Depression scale [CES-D]

    Baseline

  • +6 more secondary outcomes

Study Arms (2)

Cases _major depression patients

subjects with moderate or severe major depression, without severe suicide ideation, as characterized by the Patient Health Questionnaire (PHQ)-9 index (values of 9 or greater) and by the Structured Clinical Interview for DSM-5 - (SCID) will be selected.

Other: No intervention (observational studies)

Controls

subjects without mental health pathologies identified by SCID, who present an PHQ-9 index of 5 or below will be included as controls.

Other: No intervention (observational studies)

Interventions

No intervention (observational studies)

Cases _major depression patientsControls

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Subjects in the case group - MD group- will be selected from those patients seen at the Outpatient Clinic of Institute of Psychiatry and Mental Health of Hospital Clínico San Carlos. Subjects in the control group - Non MD group- will be recruited from the control group of a population-based study PsicoBioma TRIAD (C.P. PSQ-19-2 - C.I. 19/474-E) that is currently being performed by the lab of JCL. They will be matched on age, gender, and socio-economic status. In order to confirm that they are in good mental health, they will receive a pre-screen, online questionnaire to screen for symptoms of anxiety and depression (PHQ-9, STAI).

You may qualify if:

  • Age greater or equal to 18 years.
  • For the case group (MD patients), subjects with moderate or severe major depression, without severe suicide ideation, as characterized by the Patient Health Questionnaire (PHQ)-9 index (values of 9 or greater) and by the Structured Clinical Interview for DSM-5 - (SCID) will be selected.
  • For the control group, subjects without mental health pathologies identified by SCID, who present an PHQ-9 index of 5 or below will be included as controls.

You may not qualify if:

  • Pregnant or breastfeeding women.
  • Diabetes mellitus.
  • Chronic conditions: HIV infection, chronic intake of NSAIDs.
  • Comorbidity with other mental disorders: eating disorders, borderline personality disorders, bipolar disorders, schizophrenia and related disorders, and/or any mental serious disease other than major depression.
  • Severe suicide ideation.
  • Patients who had received periodontal treatment for periodontitis in the last year.
  • Presence of necrotizing periodontal diseases.
  • Presence of less than three teeth per quadrant.
  • Antibiotic use in the last 6 months prior to the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Faculty of Dentistry, University Complutense of Madrid (UCM)

Madrid, 28034, Spain

RECRUITING

Instituto de Psiquiatría y Salud Mental, Hospital Clínico San Carlos

Madrid, 28040, Spain

RECRUITING

MeSH Terms

Conditions

Depressive Disorder, MajorPeriodontitis

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental DisordersPeriodontal DiseasesMouth DiseasesStomatognathic Diseases

Central Study Contacts

Elena Figuero Ruiz, Prof.

CONTACT

Juan Carlos Leza Cerro

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 3, 2023

First Posted

July 18, 2023

Study Start

February 20, 2024

Primary Completion

January 1, 2026

Study Completion

March 1, 2026

Last Updated

May 10, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations