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PeriodontitisPhase 3NCT01098448

Control of Periodontal Infections

A Phase 3 study testing scaling and root planing, local tetracycline and systemic metronidazole and amoxicillin in people with Periodontitis, run by The Forsyth Institute at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test combined effects of scaling and root planing with periodontal surgery, systemically administered amoxicillin and metronidazole, and/or local tetracycline on pocket depth reduction and attachment level "gain" in patients with chronic periodontitis. Read more about this study

Who is it for?
Ages 20 years and older
Conditions the study is for
Periodontitis
What is being tested?
scaling and root planing, local tetracycline and systemic metronidazole and amoxicillin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
187 participants
Where
1 siteUnited States
Study dates
Sep 1999to Dec 2004
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • greater than 20 years of age
  • had a least 15 natural teeth
  • in good general health
  • at least 4 teeth with pockets > 6 mm
  • at least 8 teeth with AL > 3 mm at baseline

Who cannot join

  • pregnant or nursing (if female)
  • having antibiotic or periodontal therapy in the previous three months
  • systemic conditions that would affect the course of periodontal disease
  • systemic conditions that required antibiotic coverage
  • allergic to drugs used in the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Forsyth Institute

    Boston, Massachusetts, 02115

Other trials in United States

About this study

The purpose of this study is to test combined effects of scaling and root planing with periodontal surgery, systemically administered amoxicillin and metronidazole, and/or local tetracycline on pocket depth reduction and attachment level "gain" in patients with chronic periodontitis.

Read the detailed description

In this 2x2x2 factorial design study, 229 moderate to advanced chronic periodontitis patients stratified according to current smoking status were recruited in USA and Sweden. Patients were randomly assigned to 8 groups, all of which were treated by SRP plus none, one, two or three adjunctive treatments. Thus, patients were assigned to groups that did or did not receive Surg, LAb, SAb or LAb+SAb (All) providing 8 treatment combinations (Surg + All, Surg + SAb, Surg + LAb, Surg alone, SRP + All, SRP + SAb, SRP + LAb, SRP alone). Clinical, microbiological and immunological measurements were taken for 2 years (at baseline, 3, 6, 12, 18 and 24 months). To focus on changes diseased sites, analysis was restricted to sites with baseline pocket depth greater than 5 mm. (also, these were the only sites treated by LAb). In this report, main effects and interactions were evaluated for PD reduction and AL gain two years post therapy for 187 of patients. Mean values were computed for each treatment group and averages after 2 years were compared to baseline by ANOVA. Factorial ANCOVA was used to examine significance of differences between Surg or not, SAb or not and LAb or not for PD reduction and AL gain using baseline attachment level or pocket depth as covariates and including current smoking as a factor.

Conditions
Periodontitis
Being tested
scaling and root planing, local tetracycline, systemic metronidazole and amoxicillin, surgery, local antibiotics and systemic metronidazole and amoxicillin
Keywords
Amoxicillin, antibiotics, chronic periodontitis, local drug delivery, metronidazol, randomized controlled trial, subgingival scaling, surgery, tetracycline, moderate to advanced chronic periodontitis
Medical subject headings
Periodontitis, Chronic Periodontitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • scaling and root planingOther

    scaling and root planing as a single therapy

  • local tetracyclineDrug

    local delivery of tetracycline fibers releasing approximately 1.7 mg/tooth in all pockets >5mm

  • systemic metronidazole and amoxicillinDrug

    systemic metronidazole (250 mg tid x 14) and amoxicillin (500 mg bid x 14

  • surgeryOther

    periodontal surgery in residual pockets of >4mm

  • local antibiotics and systemic metronidazole and amoxicillinDrug

    1.7 mg/tooth tetracycline fiber plus metronidazole (250 mg tid x14d)and amoxicillin (500 mg bid x 14d)

  • local tetracycline and periodontal surgeryOther

    local delivery of tetracycline fibers releasing approximately 1.7 mg/tooth in all pockets >5mm and periodontal surgery in residual pockets of >4mm

  • periodontal surgery and systemic metronidazole and amoxicillinOther

    surgery in residual pockets >4mm and metronidazole (250mg tidx14d) and amoxicillin (500mg bidx14d)

  • surgery, local tetracycline, systemic metronidazole and amoxicillinOther

    periodontal surgery in residual pockets >4mm, tetracycline ibers releasing approximately 1.7 mg/tooth in pockets >5mm, systemic metronidazlo (250mg tidx14d) and amoxicillin (500 mg bidx14d)

Study groups in NCT01098448
Study groupRoleWhat they receive
Scaling and root planingActive comparatorscaling and root planing as a solo therapy
Receives: Other: scaling and root planing
Periodontal surgeryExperimentalNot described
Receives: Other: surgery
systemic antibioticsExperimentalNot described
Receives: Drug: systemic metronidazole and amoxicillin
Local delivery of tetracyclineExperimentalNot described
Receives: Drug: local tetracycline
local antibiotic and systemic antibioticsExperimentalNot described
Receives: Drug: local antibiotics and systemic metronidazole and amoxicillin
local antibiotics and surgeryExperimentalNot described
Receives: Other: local tetracycline and periodontal surgery
systemic antibiotics and surgeryExperimentalNot described
Receives: Other: periodontal surgery and systemic metronidazole and amoxicillin
local and systemic antibiotics and surgeryExperimentalNot described
Receives: Other: surgery, local tetracycline, systemic metronidazole and amoxicillin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Clinical Attachment Level Gain

    Measured: 24 months

Secondary outcomes (1)
  1. Probing pocket depth reduction

    Measured: 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Apr 2010 (estimated)
  2. Study startSep 1999
  3. Primary completionDec 2004
  4. Study completionDec 2004

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
187 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01098448
Sponsor's protocol ID
NIDCR-012861
Status last verified
Apr 2010
First submitted
1 Apr 2010
Last updated
2 Apr 2010
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing scaling and root planing, local tetracycline and systemic metronidazole and amoxicillin in people with Periodontitis, run by The Forsyth Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Apr 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Clinical Attachment Level Gain (time frame: 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Apr 2010.

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