NCT06245265

Brief Summary

Periodontitis is a common chronic inflammatory disease characterised by the destruction of the soft and hard tissues supporting the tooth, including alveolar bone, periodontal ligament and cementum. Periodontitis has been associated with different host characteristics such as diabetes or neutrophil disorders and environmental factors such as smoking, alcohol consumption and stress. On the other hand, periodontal bacterial infection triggers a systemic immune response that is associated with an increased risk of different disorders such as bacterial pneumonia, cardiovascular disease and autoimmune diseases. Rheumatoid arthritis (RA) is a severe chronic autoimmune disease of unknown etiology, characterised by symmetrical, erosive synovitis of the joints, sometimes with multisystem organ involvement, joint destruction and excessive bone loss. Although the etiology of RA is unknown, it is thought to occur in individuals with genetic predisposition as a result of exposure to various environmental factors. RA and periodontitis are chronic destructive inflammatory diseases with common genetic and environmental risk factors, pathogenesis mechanisms and complex multifactorial pathological processes. Several studies suggest that periodontitis, a common inflammatory disease of the periodontium surrounding the teeth and triggered by bacteria in the mouth, is associated with RA and may initiate and worsen inflammation in RA. Non-surgical periodontal treatment (COPT), which is considered the gold standard in the treatment of periodontitis with hand instruments and ultrasonic instruments, has been shown to provide significant improvements in the clinical outcomes of periodontitis patients with RA. COPT is performed to stop the progression of periodontal diseases. Considering the studies supporting the bidirectional relationship between periodontitis and RA, it is thought that COPT may affect the clinical and biochemical values of RA. Based on these points, the aim of our study was to investigate the relationship between serum and salivary ANGPTL-4, MMP-13, TNF-α and IL-6 levels and periodontal disease in individuals with RA and to evaluate the effects of COPT on RA disease severity in vivo.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

January 1, 2024

Completed
25 days until next milestone

First Submitted

Initial submission to the registry

January 26, 2024

Completed
12 days until next milestone

First Posted

Study publicly available on registry

February 7, 2024

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2024

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2024

Completed
Last Updated

June 25, 2025

Status Verified

February 1, 2024

Enrollment Period

5 months

First QC Date

January 26, 2024

Last Update Submit

June 19, 2025

Conditions

Keywords

PeriodontititisRheumatoid arthritisCytokine

Outcome Measures

Primary Outcomes (1)

  • Examination of ANGPTL-4 levels of periodontal disease and rheumatoid arthritis

    Examination of ANGPTL-4 levels, which are stated to be associated with periodontal disease, in serum and saliva samples obtained from individuals with periodontitis and periodontitis individuals with RA.

    up to 1 year

Secondary Outcomes (1)

  • Evaluation of the effect of non-surgical periodontal treatment on changes in ANGPTL-4 level.

    up to 1 year

Other Outcomes (1)

  • Comparison biomarkers of study groups.

    up to 1 year

Study Arms (4)

Clinical Healthy

EXPERIMENTAL

Clinical measurements (Plaque index, probing depth, gingival recession, clinical attachment level, bleeding on probing) salivary sample and serum will be taken from all individuals at the beginning of the study. ANGPTL-4 levels will be examined to evaluate before and after treatment in periodontal health and periodontitis. A pre-treatment saliva sample and serum will be collected from the clinically healthy group.

Other: ELISA (Enzyme-Linked ImmunoSorbent Assay)

Periodontitis

EXPERIMENTAL

Non-surgical periodontal treatment will be applied to individuals with periodontitis, clinical measurements, saliva collection and serum will be repeated 12 weeks after the treatment. ANGPTL-4 analysis will be performed by ELISA in saliva and serum of individuals. ANGPTL-4 levels will be examined to evaluate before and after treatment in periodontal health and periodontitis. Clinical measurements (Plaque index, probing depth, gingival recession, clinical attachment level, bleeding on probing) and salivary sample will be taken from all individuals at the beginning of the study.

Other: ELISA (Enzyme-Linked ImmunoSorbent Assay)

Periodontitis with rheumatoid arthritis

EXPERIMENTAL

Non-surgical periodontal treatment will be applied to individuals with periodontitis, clinical measurements, saliva collection and serum will be repeated 12 weeks after the treatment. ANGPTL-4 analysis will be performed by ELISA in saliva and serum of individuals. ANGPTL-4 levels will be examined to evaluate before and after treatment in periodontitis with rheumatoid arthritis. Clinical measurements (Plaque index, probing depth, gingival recession, clinical attachment level, bleeding on probing) and salivary sample will be taken from all individuals at the beginning of the study.

Other: ELISA (Enzyme-Linked ImmunoSorbent Assay)

Healthy individuals with RA

EXPERIMENTAL

Clinical measurements (Plaque index, probing depth, gingival recession, clinical attachment level, bleeding on probing) salivary sample and serum fluid will be taken from all individuals at the beginning of the study. ANGPTL-4 levels will be examined to evaluate before and after treatment in periodontal health and periodontitis. A pre-treatment saliva sample and serum will be collected from the healthy individuals with RA group.

Other: ELISA (Enzyme-Linked ImmunoSorbent Assay)

Interventions

In this study, 15 periodontitis patients with RA, 15 healthy individuals with RA, 15 systemic healthy periodontitis patients and 15 systemic periodontally healthy individuals will be included. ANGPTL-4 biomarker and other biomarkers (MMP-13, TNF-α, IL-6) that have not been previously analysed in the serum and saliva of both RA and periodontitis patients will be evaluated before and 3 months after COPT. Clinical parameters (Plaque index, probing depth, gingival recession, clinical attachment level, bleeding on probing), biochemical evaluations of serum, saliva and gingival samples will be performed and correlated with clinical parameters at baseline and 3 months after COPT in all individuals with periodontitis included in the study.

Clinical HealthyHealthy individuals with RAPeriodontitisPeriodontitis with rheumatoid arthritis

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • To be between the ages of 18-65,
  • Having at least 8 teeth excluding wisdom teeth,
  • No periodontal treatment in the last 3 months,
  • Not having used antibiotics in the last 3 months,
  • Not being pregnant or breastfeeding,
  • The individuals to be included in the control group should not have any systemic disease that may change the periodontal status, and the individuals to be included in the experimental group should not have any systemic disease that may affect periodontal health except RA.

You may not qualify if:

  • Under 18 years of age and over 65 years of age,
  • Having less than 8 teeth,
  • Having undergone periodontal treatment in the last 3 months,
  • Having used antibiotics in the last 3 months,
  • Being pregnant or breastfeeding,
  • Individuals to be included in the control group should have any systemic disease that may change the periodontal status, and individuals to be included in the test group should have any systemic disease that may affect periodontal health except RA.
  • Abnormal body mass index (more than 29.9 kg/m2).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Biruni University

Istanbul, 34025, Turkey (Türkiye)

Location

MeSH Terms

Conditions

PeriodontitisArthritis, Rheumatoid

Interventions

Enzyme-Linked Immunosorbent Assay

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic DiseasesArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesAutoimmune DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

Immunoenzyme TechniquesImmunoassayImmunologic TechniquesInvestigative TechniquesImmunosorbent TechniquesImmunohistochemistryMolecular Probe Techniques

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 26, 2024

First Posted

February 7, 2024

Study Start

January 1, 2024

Primary Completion

June 1, 2024

Study Completion

October 1, 2024

Last Updated

June 25, 2025

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations