Clinical trial NCT02969928: Two Different Antibiotic Agents to Treat Generalized Aggressive Periodontitis
Official title: Full-mouth Periodontal Debridement Associated With Two Different Antibiotic Agents to Treat Generalized Aggressive Periodontitis: Randomized Controlled Clinical Trial
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
PHASE3
Conditions: Aggressive Periodontitis
Keywords: Full-mouth ultrasonic debridement
Clarithromycin
Amoxicillin
Metronidazole
Lead sponsor: Universidade Estadual Paulista Júlio de Mesquita Filho
Sponsor class: OTHER
First posted: 2016-11-21
Enrollment: 46
Sex: ALL
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The aim of this study is to assess the clinical outcomes of full-mouth ultrasonic debridement combined with clarithromycin or amoxicillin + metronidazole association for the treatment of generalized aggressive periodontitis (GAgP).

Detailed description: The study methodology is according to CONSORT-STATEMENT 2010 for randomized controlled clinical trials.

Study Design

The study is designed as a prospective, interventional, parallel, triple blind, randomized, controlled clinical trial aimed to assess the clinical outcomes of full-mouth ultrasonic debridement combined with clarithromycin or amoxicillin + metronidazole association for the treatment of generalized aggressive periodontitis (GAgP). The study was approved by Institute of Science and Technology's (ICT - State University of São Paulo) Ethics Committee (protocol 1.079.307).

Source of data

The population of this study will be recruited among patients referred to the Science and Technology Institute - ICT- São José dos Campos, College of Dentistry. Patients will fill a healthy history questionnaire to ensure that they are medically qualified for participate in this study. Based on the power calculation for this study, 44 subjects divided into two groups will be needed to achieve 80% power to detect a 0.8 mm difference in the clinical attachment level (CAL) of patients.

Clinical Parameters

All clinical parameters will be assessed by a single blinded, trained and calibrated examiner (CFA) before periodontal therapy (baseline) and at 3 and 6 months after using a manual probe. Measurements will be done at six sites per tooth (mesiobuccal, buccal, disto-buccal, distolingual, lingual, and mesiolingual) in all teeth, except third molars.

The following clinical parameters will be evaluated: 1) Full-mouth plaque index (FMPI); 2) Bleeding on probing (BoP); 3) Probing depth (PD): distance from the bottom of sulcus/pocket to gingival margin; 4) Gingival recession (GM): distance from the free gingival margin to cement-enamel junction (CEJ); 5) Clinical attachment level (CAL): distance from bottom of sulcus/pocket to the CEJ. The CEJ will be identified by careful probe on cervical area.

Calibration and Randomization

Initially, a total of ten patients presenting with GAgP will be selected. The designated examiner (CFA) will measure CAL and PD in all patients twice within 24 hours, with an interval of ≥ 1 hour between examinations. Then, the measures will be submitted to intraclass correlation test and the examiner will be judged calibrated if reaches 90% agreement.

Patients will be allocated into two groups according to a computer-generated list. The allocation will be implemented by an investigator (NCCS) who was not directly involved in the examination or treatment procedures. All medication will be prepared and encased in identical opaque coded bottles by a manipulation pharmacy on São José dos Campos/São Paulo.

Treatment Protocols

All patients will be treated with periodontal therapy through of the one-stage, full mouth, ultrasonic debridement (FMUD). In a single session, patients will receive local anesthesia and periodontal debridement with ultrasound equipment (Cavitron - Dentsply EUA) and subgingival tips (UI25KSF10S, Hu-Friedy). All diseased sites will be instrumented in this one session. The debridement session will be performed by a single experienced and trained periodontist (MPS), different from the examiner. Immediately before the mechanical therapy, patients will be allocated in one of the two treatment protocols:

1. Clarithromycin (CLM) group (n = 22): FMUD + CLM 500 mg bid, for 7 days and
2. Amoxicillin (AMX) + metronidazole (MET) group (n = 22): FMUD + (AMX 500 mg tid + MET 400 mg tid, both for 7 days.

All patients will start taking the pills immediately before of the FMUD session.

Compliance and Adverse Effects

After 7 days of periodontal treatment, patients will be asked to return any medication not taken and/or the empty bottles. The number of pills not taken by the subject will be documented. Moreover, patients will be instructed to return a self-report form filled about any possible adverse effects in order to help evaluate their adherence to the systemic antimicrobial regimen.

Statistical analysis

Mean and standard deviation will be calculated for each parameter. The normal distribution of the data will be analyzed by Shapiro-Wilk test. Data from clinical measurements will be subjected to analysis of variance (repeated measures) for inter and intra-group comparison.

Eligibility criteria: Inclusion Criteria:

1. diagnosis of GAgP (AAP, 1999);
2. presence of ≥20 teeth;
3. presence of ≥ 6 sites presenting PD ≥ 5mm with bleeding on probing (BOP) and ≥2 sites with PD ≥7mm (including incisors and first molars, in addition to other two non-contiguous teeth);
4. good general health;
5. ≤ 35 years old; and
6. agree to participate in the study and sign a written informed consent. All subjects will be individually informed about the objectives, probable risks and benefits of the protocol treatment (according to Resolution nº196 of October 1996 and to the Professional Code of Dental Ethics - 179/93).

Exclusion Criteria:

1. pregnancy or lactating;
2. suffer from any systemic disease (e.g. cardiovascular disorders, diabetes, blood dyscrasias, immunodeficiency, etc) which could alter the course of periodontal disease;
3. took antimicrobials in the previous 6 months;
4. taking long-term anti-inflammatory drugs;
5. previous periodontal treatment within the last 12 months;
6. smokers.

Primary outcomes:
measure: Change in Clinical Attachment Level (CAL)
timeFrame: Baseline, 3 and 6 months
Secondary outcomes:
measure: Change in Probing Depth (PB)
timeFrame: Baseline, 3 and 6 months
measure: Change in Bleeding on Probe (BoP)
timeFrame: Baseline, 3 and 6 months
Other outcomes:
measure: Compliance
timeFrame: One week post treatment
measure: Adverse Effects That May be Related to Antibiotic Treatment
timeFrame: One week post treatment
Locations:
city: São José dos Campos
country: Brazil
facility: College of Dentistry - São José dos Campos, Sao Paulo State University
state: SP
Study officials:
affiliation: Universidade Estadual Paulista Júlio de Mesquita Filho
name: Mauro P Santamaria, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Pradeep AR, Kathariya R. Clarithromycin, as an adjunct to non surgical periodontal therapy for chronic periodontitis: a double blinded, placebo controlled, randomized clinical trial. Arch Oral Biol. 2011 Oct;56(10):1112-9. doi: 10.1016/j.archoralbio.2011.03.021. Epub 2011 May 6.
citation: Mestnik MJ, Feres M, Figueiredo LC, Duarte PM, Lira EA, Faveri M. Short-term benefits of the adjunctive use of metronidazole plus amoxicillin in the microbial profile and in the clinical parameters of subjects with generalized aggressive periodontitis. J Clin Periodontol. 2010 Apr;37(4):353-65. doi: 10.1111/j.1600-051X.2010.01538.x.
citation: Khattri S, Kumbargere Nagraj S, Arora A, Eachempati P, Kusum CK, Bhat KG, Johnson TM, Lodi G. Adjunctive systemic antimicrobials for the non-surgical treatment of periodontitis. Cochrane Database Syst Rev. 2020 Nov 16;11(11):CD012568. doi: 10.1002/14651858.CD012568.pub2.
citation: Araujo CF, Andere NMRB, Castro Dos Santos NC, Mathias-Santamaria IF, Reis AA, de Oliveira LD, Jardini MAN, Casarin RCV, Santamaria MP. Two different antibiotic protocols as adjuncts to one-stage full-mouth ultrasonic debridement to treat generalized aggressive periodontitis: A pilot randomized controlled clinical trial. J Periodontol. 2019 Dec;90(12):1431-1440. doi: 10.1002/JPER.18-0399. Epub 2019 Jul 16.