- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00016835
Treating Periodontal Infection: Effects on Glycemic
Treating Periodontal Infection: Effects on Glycemic Control in People With Type 2 Diabetes
Study Overview
Status
Conditions
Detailed Description
There is compelling epidemiological and clinical evidence to suggest that periodontal infection adversely affects glycemic control in people with type 2 diabetes mellitus. The purpose of this pilot project is to obtain important preliminary data necessary to support design of a full scale, multi-center randomized clinical trial (RCT) to evaluate the effect of treating periodontal infection on glycemic control in individuals with type 2 diabetes mellitus. This current project involves treating periodontal infection to obtain estimates of changes and the variability of those changes over time in the established primary endpoint, hemoglobin A1c (HbA1c). This project will also explore use of several potential secondary endpoints including levels of periodontitis and glucose metabolism-related inflammatory mediators (TNF-alpha, IL-1-beta, IL-6), serum cholesterol, triglyceride and lipids. Subjects are randomly assigned to 1 of three possible groups for comprehensive periodontal examination, specimen collection, mechanical periodontal therapy and oral systemic antibiotics or placebo, and regular follow-up evaluations and site-specific mechanical periodontal therapy, at 3-month intervals, for approximately 15 months. Two groups receive ultrasonic scaling with local anesthesia (as needed), local antimicrobial treatment with povidone-iodine irrigation, and an oral systemic antibiotic (either doxycycline or metronidazole) at the initial treatment visit. The third group ("controls") receives a placebo and supra-gingival oral prophylaxis and ultrasonic removal of supra-gingival calculus with water irrigation at the initial treatment visit. At the 9-month follow-up visit, "controls" receive sub-gingival ultrasonic scaling with povidone-iodine irrigation.
Results from this pilot project will be used as preliminary data to support design of an immediate follow-up proposal to NIH/NIDCR for funding a multi-center RCT to evaluate the effect of treating periodontal infection on glycemic control in type 2 diabetes. If results from the full scale clinical trial provide evidence that treating periodontal infection contributes to improved glycemic control, then diagnosis and treatment of periodontal infection in subjects with type 2 diabetes could be substantiated as an important component in management of diabetes.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Michigan
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Ann Arbor, Michigan, United States, 48109-1078
- Department of Cariology, Restorative Sciences and Endodontics
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria
- Subjects must be 18 years of age or older,
- have at least six natural teeth,
- have established periodontal disease (established at the screening examination),
- have a history of type 2 diabetes of at least six months with HbAlc > 7.1%.
Exclusion Criteria
- Subjects will be excluded from the study if they are presently under the care of a periodontist;
- have had antibiotic treatment within the previous three months;
- have conditions that require antibiotic prophylaxis for dental treatment;
- have allergies to iodine, doxycycline, metronidazole, or chlorhexidine;
- have blood dyscrasias;
- are pregnant or breast feeding;
- have severe cognitive or communication impairment;
- have a cardiac pacemaker;
- are under cancer chemotherapy;
- are medically unstable or have a life expectancy of less than two years;
- are currently taking disulfiram, phenobarbital, lithium, terfenadine, astemizole, or warfarin;
- or are out of town or otherwise unavailable for more than three consecutive months of the year.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Supra-gingival scaling and placebo
This group receives a placebo (instead of systemic antibiotic), supra-gingival oral prophylaxis, and ultrasonic removal of supra-gingival calculus with water irrigation at the initial treatment visit. At the 9-month follow-up visit, this group will receive sub-gingival ultrasonic scaling with povidone-iodine irrigation. This group also receives regular follow-up evaluations and site-specific mechanical periodontal therapy, at 3-month intervals, for approximately 15 months. |
Included in arm/group description.
|
Experimental: Subgingival scaling and metronidazole
This group receives ultrasonic scaling with local anesthesia (as needed), local antimicrobial treatment with povidone-iodine irrigation, and metronidazole as an oral systemic antibiotic at the initial treatment visit. This group also receives regular follow-up evaluations and site-specific mechanical periodontal therapy, at 3-month intervals, for approximately 15 months. |
Included in arm/group description.
|
Experimental: Subgingival scaling and doxycycline
This group receives ultrasonic scaling with local anesthesia (as needed), local antimicrobial treatment with povidone-iodine irrigation, and doxycycline as an oral systemic antibiotic at the initial treatment visit. This group also receives regular follow-up evaluations and site-specific mechanical periodontal therapy, at 3-month intervals, for approximately 15 months. |
Included in arm/group description.
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: George W. Taylor, DMD, Dr.PH, University of Michigan
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Glucose Metabolism Disorders
- Metabolic Diseases
- Endocrine System Diseases
- Stomatognathic Diseases
- Mouth Diseases
- Diabetes Mellitus
- Diabetes Mellitus, Type 2
- Periodontal Diseases
- Anti-Infective Agents
- Anti-Bacterial Agents
- Antiprotozoal Agents
- Antiparasitic Agents
- Antimalarials
- Metronidazole
- Doxycycline
Other Study ID Numbers
- NIDCR-03
- 5R01DE013796-03 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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