Locally Delivered Doxycycline Adjunct to Nonsurgical Periodontal Therapy.

NCT ID: NCT02487186

Last Updated: 2016-03-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-03-31

Study Completion Date

2015-06-30

Brief Summary

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The aim of this clinical study is to asses the effect of ultrasonic periodontal debridement associated to locally delivered doxycycline (20%) by PLGA microspheres on chronic generalized periodontitis treatment.

Detailed Description

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Thirty patients with chronic periodontitis and a minimum of seven pockets (\>5

mm) in non-molars teeth that bled on probing will be selected. Patients will be randomly

assigned to ultrasonic periodontal debridement followed by local application of doxycycline

by PLGA microspheres (DB+DOX) and periodontal debridement followed by administration

of void PLGA microspheres (DB). Plaque, bleeding on probe, clinical attachment level

(CAL), and probing depth (PD) will be recorded at baseline, 3 and 6 months. Subgingival

biofilm samples will be collected from initially moderate (5 to 6 mm) and deep (≥7 mm)

pockets at baseline, 1, 3 and 6 months. Polimerase chain reaction (PCR) analysis will be

used to detect the frequency of Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf),

Treponema denticola (Td), Aggregatibacter actinomycetemcomitans (Aa), and Prevotella

intermedia (Pi).

Conditions

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Periodontal Disease

Keywords

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Chronic periodontitis Local doxycycline Ultrasonic debridement PLGA microspheres Microbiologic assessment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Test group: DB+DOX

Test group: DB (full mouth debridment) +DOX (doxicicline) - 45 minutes of full-mouth debridement + subgingival application of PLGA microspheres loading doxycycline 10%.

Group Type ACTIVE_COMPARATOR

Doxicicline

Intervention Type DRUG

Association of doxycycline (DOX) encapsulated in PLGA microspheres to ultrasonic debridment for the treatment of patients with chronic generalized periodontitis.

Full-mouth debridment

Intervention Type PROCEDURE

The patients will be treated by a single-session of periodontal debridement

during 45 minutes, using an ultrasonic instrument (Cavitron, Dentsply, Rio de

Janeiro, Brazil), under irrigation with sterile saline solution 20. After the debridement, local administration of microspheres loading doxycycline (DOX) (test) or empty microspheres (control) was performed.

Control group: DB alone

Control group: DB alone (Full-mouth debridment)

Intervention: 45 minutes of full-mouth debridement + subgingival application of void PLGA microspheres.

Group Type ACTIVE_COMPARATOR

Full-mouth debridment

Intervention Type PROCEDURE

The patients will be treated by a single-session of periodontal debridement

during 45 minutes, using an ultrasonic instrument (Cavitron, Dentsply, Rio de

Janeiro, Brazil), under irrigation with sterile saline solution 20. After the debridement, local administration of microspheres loading doxycycline (DOX) (test) or empty microspheres (control) was performed.

Interventions

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Doxicicline

Association of doxycycline (DOX) encapsulated in PLGA microspheres to ultrasonic debridment for the treatment of patients with chronic generalized periodontitis.

Intervention Type DRUG

Full-mouth debridment

The patients will be treated by a single-session of periodontal debridement

during 45 minutes, using an ultrasonic instrument (Cavitron, Dentsply, Rio de

Janeiro, Brazil), under irrigation with sterile saline solution 20. After the debridement, local administration of microspheres loading doxycycline (DOX) (test) or empty microspheres (control) was performed.

Intervention Type PROCEDURE

Other Intervention Names

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PLGA microspheres

Eligibility Criteria

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Inclusion Criteria

* Chronic generalized periodontitis (AAP,1999);
* At least 7 sites with probing depths \>5mm, and 2 sites with probing depth \>7mm;
* At least 20 teeth present;
* Systemically healthy.

Exclusion Criteria

* Had received periodontal care 6 months prior to the study;
* Had taken medications known to interfere with periodontal health and healing 6 months prior to the study;
* Pregnants or lactants;
* Smokers;
* Sensitive to doxycycline.
Minimum Eligible Age

35 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Campinas, Brazil

OTHER

Sponsor Role lead

Responsible Party

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Enilson Antonio Sallum

Professor, department of Periodontics, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Enilson A Sallum, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Campinas, Brazil

Locations

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Piracicaba Dental School, State University of Campinas

Piracicaba, São Paulo, Brazil

Site Status

Countries

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Brazil

Other Identifiers

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012/2009

Identifier Type: -

Identifier Source: org_study_id