Exploring the link between periodontal disease and repeated miscarriages

Status Report on Periodontal Status and Oral Microbiota Women Who Have Suffered Repeated Miscarriages: a Pilot Study

Observational University Hospital, Toulouse · NCT06576622

This study is trying to see if there’s a connection between gum disease and women who have had multiple miscarriages.

Quick facts

Study typeObservational
Enrollment30 (estimated)
AgesN/A to 18 Years
SexFemale
SponsorUniversity Hospital, Toulouse Academic / other
Locations1 site (Toulouse)
Trial IDNCT06576622 on ClinicalTrials.gov

What this trial studies

This observational pilot study aims to recruit women who have experienced repeated miscarriages, defined as having at least three miscarriages. Participants will undergo a routine oral clinical and radiological examination at the Toulouse University Hospital, where saliva and subgingival plaque samples will be collected for bacterial analysis. The study will also gather information on participants' medical history and risk factors related to periodontal disease. The goal is to investigate the potential relationship between oral health and miscarriage rates.

Who should consider this trial

Good fit: Ideal candidates for this study are women who have had at least three miscarriages and possess a minimum of six natural teeth.

Not a fit: Patients currently undergoing antibiotic, prebiotic, or probiotic treatments, or those with a high infection risk, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into how periodontal health impacts miscarriage rates, potentially leading to improved care for women experiencing repeated miscarriages.

How similar studies have performed: While the relationship between oral health and pregnancy outcomes is being explored, this specific approach is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* women whom had repeated miscarriages
* at least 6 natural teeth

Exclusion Criteria:

* under antibiotic prebiotic or probiotics treatment one month prior to the study
* with high infection risk (HIV,...)

Where this trial is running

Toulouse

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions MiscarriageParodontitisREPEATED MISCARRIAGESPorphyromonas gingivalisSALIVABIOLOGICAL SAMPLESsubgingival plaque
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.