Full Mouth Disinfection and Antibiotics for Periodontitis in High or Moderate Disease Activity Rheumatoid Arthritis — FMD-ABRA

Rheumatoid Arthritis Clinical Trial

Official title:
Single Arm Pilot Study of Antimicrobial Treatment of Active Rheumatoid Arthritis Associated With Manifest Periodontitis (Translated From German: Anti-mikrobielle Behandlung Der Aktiven Rheumatoiden Arthritis Bei Manifester Parodontitis - Eine Unkontrollierte Therapie-Pilotstudie)

Status Completed

Clinical Trial Summary

The purpose of this study is to determine whether full mouth disinfection in combination with one week antibiotic amoxicillin plus metronidazole antibiotic therapy is improving periodontitis and disease activity of rheumatoid arthritis.

Clinical Trial Description

Rheumatoid arthritis (RA) is a currently incurable disease of unknown origin characterized by joint inflammation and the breakdown of immune tolerance to a variety of antigens, including citrullinated peptides generated by peptidyl-arginine-deiminases (PAD's). Porphyromonas gingivalis (P. g.) derived PAD enzyme (PPAD) citrullinates preferentially C-terminal arginine residues, which may be generated by P.g. derived gingipain protein (Rgpb) cleavage, but several of the originated peptide sequences from enolase, collagen, vimentin or fibrinogen may be cross-reactant to citrullinated RA candidate autoantigens.

Antigen-specific autoantibodies in RA may be present years before clinical disease onset of arthritis, and their precise role in the initiation or perpetuation of the characteristic articular immune processes is currently unclear. The situation for autoantibodies was in similar poorly understood for decades until an unanticipated reduction of RA disease activity could be achieved by therapeutic B cell depletion using anti-CD20 therapy. While anti-CD20 therapy may affect the regeneration of autoantibody producing cells, the investigators aim in the present study to reduce potential oral trigger mechanisms or antigens for cross-reactant autoreactive B cell or plasma cell populations. The study follows the concept of improved RA disease activity by minimization of any inflammatory stimuli associated with periodontitis, e.g. by any underlying microbial colonization, the amount of microbial foreign antigens, achieved by standard oral hygienic means, full mouth disinfection plus adjuvant short term antibiotic therapy in established periodontitis. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02096120
Study type	Observational
Source	University Hospital Inselspital, Berne
Contact
Status	Completed
Phase
Start date	February 2014
Completion date	October 25, 2017

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.