NCT03862456

Brief Summary

The objective of this study is to determine whether, in patients with non treated periodontitis (stage III and IV) positive to Porphyromonas gingivalis, the use of systemic antimicrobials (metronidazole versus azithromycin) as an adjunctive treatment to periodontal surgery provides clinical and microbiological benefits.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2013

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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, 2013

Completed
6.1 years until next milestone

First Submitted

Initial submission to the registry

February 20, 2019

Completed
13 days until next milestone

First Posted

Study publicly available on registry

March 5, 2019

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2019

Completed
Last Updated

March 5, 2019

Status Verified

February 1, 2019

Enrollment Period

6.5 years

First QC Date

February 20, 2019

Last Update Submit

March 1, 2019

Conditions

Keywords

Disease ProgressionMicrobiotaPeriodontitis/surgeryPeriodontitis/therapyPeriodontitis/drug effectPeriodontitis/drug therapyPeriodontal diseases/surgeryPeriodontal diseases/therapyPeriodontal pocket/surgeryPeriodontal pocket/therapyPeriodontal pocket/drug therapyAzithromycin/therapeutic useMetronidazole/therapeutic useAzithromycinMetronidazolePorphyromonas gingivalis

Outcome Measures

Primary Outcomes (1)

  • Probing pocket depth (PPD)

    Full mouth measurement at 6 sites per tooth, with a manual periodontal probe University North Carolina 15 (UNC-15 mm)

    At 6 weeks after periodontal surgery

Secondary Outcomes (12)

  • Probing pocket depth (PPD)

    At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

  • Gingival Recession (REC)

    At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

  • Plaque index (PlI)

    At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

  • Gingival index (GI)

    At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

  • Furcations

    At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

  • +7 more secondary outcomes

Study Arms (2)

azythromycin + periodontal surgery.

EXPERIMENTAL

Periodontal surgery + Azithromycin (500 mg every 24 h for 3 days).

Other: Azithromycin

metronidazole + periodontal surgery

ACTIVE COMPARATOR

Periodontal surgery + Metronidazole (500 mg every 8 h for 7 days).

Other: Metronidazole

Interventions

azithromycin (500 mg/24h/3 days)

azythromycin + periodontal surgery.

metronidazole (500 mg/8h/7 days)

metronidazole + periodontal surgery

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of periodontitis (stages III or IV) that may require periodontal surgery
  • Have at least 10 teeth in function, excluding third molars.
  • Present locations with probing depth (PS)\> 6 mm in at least 30% of the teeth.
  • Present radiographic evidence of moderate-severe bone loss in at least 30% of the dentition.
  • Detection of P. gingivalis in subgingival samples taken at the screening visit as well as in the post-scaling and root planning visit and processed by culture.
  • Systemically healthy patients.

You may not qualify if:

  • Pregnant or lactating women.
  • Presenting systemic pathology and / or taking medication that may affect the periodontal situation and / or patients requiring antibiotic prophylaxis.
  • Have received systemic antimicrobial treatment in the previous 6 months.
  • Have received periodontal treatment in the 6 months prior to the beginning of the study.
  • Patients allergic to metronidazole, or to any of the components of commercial formulations thereof (Flagyl®).
  • Patients allergic to azithromycin, or to any of the components of commercial formulations thereof (Zithromax®).
  • Patients who refuse to sign the informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Dentistry, Univesity Complutense, Madrid

Madrid, 28040, Spain

Location

MeSH Terms

Conditions

PeriodontitisDisease ProgressionPeriodontal DiseasesPeriodontal Pocket

Interventions

AzithromycinMetronidazole

Condition Hierarchy (Ancestors)

Mouth DiseasesStomatognathic DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ErythromycinMacrolidesPolyketidesLactonesOrganic ChemicalsNitroimidazolesNitro CompoundsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Mariano Sanz

    University Complutense Madrid (UCM)

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The subjects were randomly assigned to the treatment groups in ascending order according to a balanced distribution system through a computer generated random number design table (random block design). Randomization was balanced according to the smoking habit at the initial visit to ensure homogeneity in the treatment groups. The method of allocation concealment selected were opaque envelopes. The research coordinator was responsible for the randomization and allocation of patients. The 50 opaque envelopes (25 / group) were prepared.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 20, 2019

First Posted

March 5, 2019

Study Start

January 1, 2013

Primary Completion

July 1, 2019

Study Completion

July 1, 2019

Last Updated

March 5, 2019

Record last verified: 2019-02

Data Sharing

IPD Sharing
Will not share

Locations