Evaluation of Matrix Metalloproteinase 8 Salivary Test for Diagnosis of Periodontitis

September 28, 2021 updated by: Božana Lončar Brzak, University of Zagreb

Evaluation of Matrix Metalloproteinase 8 Salivary Test for Periodontal Diagnosis in Infertile Women

Despite the great progress in understanding the causes of infertility, the reason for the failure of pregnancy has not been discovered among 25% of infertile couples. Some studies have shown the negative impact of periodontal disease on the reproductive potential of women. It is known that there is an elevated level of matrix metalloproteinase 8 (MMP8) in the gingival fluid of patients with periodontitis. It is possible to establish a fast diagnosis of periodontitis by using a non-invasive assay based on monoclonal antibodies to two epitopes of MMP-8. The goal of the research is to use the above described assay in order to compare the level of MMP8 in the gingival fluid of infertile patients with the control group of fertile women, depending on the existence of periodontal disease. It is expected to find significantly higher values of MMP8 in infertile patients in relation to the fertile patient with/without periodontitis. The prompt treatment of periodontitis in preconception care of this group of women could have a significant impact on the improvement of fertility and ability to achieve pregnancy.

Study Overview

Detailed Description

Periodontal disease or periodontitis is a common chronic infection and inflammatory gingival disease and its supportive tissue associated with several unwanted effects, including serious obstetric consequences. Periodontitis is commonly diagnosed in clinical practice based on clinical findings and radiological examinations, but also with the help of microbiological or periodontal bacterial specimens. Several salivary markers have been investigated and it appears that the determination of matrix metalloproteinases provides clear information on the difference between gingivitis, periodontitis, and healthy periodontitis. Especially in this respect, matrix metalloproteinase 8 (MMP 8) was investigated, which proved to be a fairly good marker. Little is known about the effect of periodontitis on reproductive potential of women. Some studies have assumed that periodontitis could be one of the possible risk factors of infertility of an unknown cause. One of the possible mechanisms responsible for the negative influence of periodontitis is the conception of the mediator of inflammation at the level of the endometrium and the place of implantation of the embryo.The aim of the study was to compare the level of MMP8 in salivary fluid in infertile patients in relation to the control group of fertile women, depending on the existence of periodontitis.

Study Type

Observational

Enrollment (Actual)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Zagreb, Croatia, 10000
        • School of Dental Medicine, University of Zagreb

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years to 38 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

The study will comprise a total of 100 women, of which 25 fertile women without periodontitis; 25 fertile women, with periodontitis; 25 infertile women, with unknown cause of infertility and with periodontitis and 25 infertile women with unknown cause of infertility and without periodontitis.

Description

Inclusion Criteria:

  • fertile women- women who gave birth to at least one child, without previous fertility treatments, with or without periodontitis
  • infertile women- women who are diagnosed with infertility of unknown cause, with or without periodontitis

Exclusion Criteria:

  • female with known cause of infertility

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
fertile, without periodontitis

Women who gave birth to at least one child, without preovious fertility treatments, and who do not have periodontitis.

Interventions:

salivary MMP8 test; periodontal examination; blood tests

All female participants will make salivary MMP8 test and certain blood parameters to determine systemic inflammatory response
Periodontal examination by a specialist of periodontology will be made to all female participants, using periodontal probe and dental mirror.
All female participants who do not have recent blood tests will make new blood tests to determine certain blood parameters.
fertile, with periodontitis

Women who gave birth to at least one child, without preovious fertility treatments, and who do have periodontitis.

Interventions:

salivary MMP8 test;periodontal examination;blood tests

All female participants will make salivary MMP8 test and certain blood parameters to determine systemic inflammatory response
Periodontal examination by a specialist of periodontology will be made to all female participants, using periodontal probe and dental mirror.
All female participants who do not have recent blood tests will make new blood tests to determine certain blood parameters.
infertile, without periodontitis

Women who are diagnosed with infertility of unknown cause, and who do not have periodontitis.

Interventions:

salivary MMP8 test; periodontal examination;blood tests

All female participants will make salivary MMP8 test and certain blood parameters to determine systemic inflammatory response
Periodontal examination by a specialist of periodontology will be made to all female participants, using periodontal probe and dental mirror.
All female participants who do not have recent blood tests will make new blood tests to determine certain blood parameters.
infertile, with periodontitis

Women who are diagnosed with infertility of unknown cause, and who do have periodontitis.

Interventions:

salivary MMP8 test; periodontal examination; blood tests

All female participants will make salivary MMP8 test and certain blood parameters to determine systemic inflammatory response
Periodontal examination by a specialist of periodontology will be made to all female participants, using periodontal probe and dental mirror.
All female participants who do not have recent blood tests will make new blood tests to determine certain blood parameters.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Salivary MMP8 test for diagnostics of periodontitis
Time Frame: 2018-2019
Evaluation of salivary MMP8 test for diagnostics of periodontitis
2018-2019

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Božana Lončar Brzak, Assist.Prof., University of Zagreb School of Dental Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2018

Primary Completion (Actual)

May 1, 2021

Study Completion (Actual)

May 1, 2021

Study Registration Dates

First Submitted

May 18, 2018

First Submitted That Met QC Criteria

May 18, 2018

First Posted (Actual)

May 31, 2018

Study Record Updates

Last Update Posted (Actual)

September 29, 2021

Last Update Submitted That Met QC Criteria

September 28, 2021

Last Verified

September 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • University of Zagreb

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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