NCT03171675

Brief Summary

This case control-study measures the levels of Interleukin-17 in gingival crevicular fluid and placental tissue samples of pregnant females as a possible marker in determining whether or not an association exists between chronic periodontitis and preterm labor. Interleukin-17 is a pro-inflammatory cytokine whose levels have been proven to increase in periodontal disease.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2014

Shorter than P25 for all trials

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

December 25, 2014

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 2, 2015

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 16, 2015

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

May 28, 2017

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 31, 2017

Completed
Last Updated

July 24, 2017

Status Verified

July 1, 2017

Enrollment Period

2 months

First QC Date

May 28, 2017

Last Update Submit

July 20, 2017

Conditions

Keywords

Chronic PeriodontitisPreterm LaborPreterm BirthInterleukin-17IL-17Periodontal DiseasePeriodontitisPeriodontal risk factorsMedical risk factors

Outcome Measures

Primary Outcomes (1)

  • Interleukin-17

    Interleukin-17 levels in gingival crevicular fluid and placental tissue samples

    Single sample from each patient following birth

Study Arms (4)

Preterm/Chronic Periodontitis

Included ten female patients who underwent spontaneous preterm birth and were diagnosed with chronic periodontitis upon clinical examination

Preterm/Healthy Periodontium

Included ten female patients who underwent spontaneous preterm birth and who had a healthy periodontium upon clinical examination

Term/Chronic Periodontitis

Included ten female patients who underwent spontaneous normal term birth and were diagnosed with chronic periodontitis upon clinical examination

Term/Healthy Periodontium

Included ten female patients who underwent spontaneous normal term birth and who had a healthy periodontium upon clinical examination (Armitage1999)

Eligibility Criteria

Age18 Years - 35 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Conducted in Cairo, Egypt at the Maternal-Fetal Medical Clinic at the Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University.

You may qualify if:

  • Within the age range of 18-35 years
  • Free of any systemic diseases as referenced from Burket's Oral Medicine health history questionnaire (Glick2008)
  • Spontaneous normal term birth at ≥37 weeks of gestation without any obstetrical or medical complications
  • Spontaneous preterm birth (PTB) at \<37 weeks of gestation after uterine contraction or rupture of membranes (Keelan1999)

You may not qualify if:

  • History of medications that may affect the study outcome, such as: current use of systemic corticosteroids or antibiotics for at least one month
  • Genital and urinary tract infections
  • Existing hypertension and diabetes mellitus before pregnancy, autoimmune disease, asthma, and chronic renal disease
  • Multiple pregnancies, cervical cerculage, abnormal placentation, past history of preterm delivery, or antepartum hemorrhage
  • Low or high maternal body mass index

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (3)

  • Armitage GC. Development of a classification system for periodontal diseases and conditions. Ann Periodontol. 1999 Dec;4(1):1-6. doi: 10.1902/annals.1999.4.1.1.

    PMID: 10863370BACKGROUND
  • Glick M, Greenberg MS, Ship JA. Introduction to oral medicine and oral diagnosis: evaluation of the dental patient. In: Greenberg MS, Glick M, Ship JA. Burket's Oral Medicine. 11th Edition. Hamilton, Ontario: BC Decker; 2008:3.

    BACKGROUND
  • Keelan JA, Marvin KW, Sato TA, Coleman M, McCowan LM, Mitchell MD. Cytokine abundance in placental tissues: evidence of inflammatory activation in gestational membranes with term and preterm parturition. Am J Obstet Gynecol. 1999 Dec;181(6):1530-6. doi: 10.1016/s0002-9378(99)70400-x.

    PMID: 10601939BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Gingival crevicular fluid and placental tissue samples

MeSH Terms

Conditions

Chronic PeriodontitisObstetric Labor, PrematurePremature BirthPeriodontal DiseasesPeriodontitis

Condition Hierarchy (Ancestors)

Mouth DiseasesStomatognathic DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsObstetric Labor ComplicationsPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Study Officials

  • Ahmed Y. Gamal, PhD

    Faculty of Dentistry, Ain Shams University

    STUDY CHAIR
  • Olfat G. Shaker, PhD

    Cairo University

    STUDY DIRECTOR
  • Fatma H. Mohamed, PhD

    Faculty of Dentistry, Ain Shams University

    STUDY DIRECTOR
  • Mohamed Agoor, MSc

    Faculty of Dentistry, Ain Shams University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 28, 2017

First Posted

May 31, 2017

Study Start

December 25, 2014

Primary Completion

March 2, 2015

Study Completion

June 16, 2015

Last Updated

July 24, 2017

Record last verified: 2017-07