Genes Associated With Hereditary and Drug-Induced Gingival Overgrowth - Full Text View

Sponsored by:	National Institute of Dental and Craniofacial Research (NIDCR)
Information provided by:	National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:	NCT00104026

Purpose

This study will examine common features of gingival overgrowth (excessive growth of the gums around the teeth) that develops in patients with the hereditary form of the condition and in those who develop the condition as a side effect of medications. A better understanding of gingival overgrowth may help scientists develop medications with fewer oral side effects.

Patients of any age with hereditary gingival fibromatosis and their blood relatives, and patients of any age with gingival overgrowth who are taking medications associated with development of the disorder, including phenytoin (diphenylhydantoin or Dilantin), cyclosporine, and calcium-channel blockers, may be eligible for this study.

Participants undergo a medical and dental history, including a history of medication use; detailed examination of the teeth, periodontium, head, and neck; photographs of teeth with gingival overgrowth; dental x-rays; and blood tests. DNA is extracted from a blood sample to look for genes related to gingival overgrowth.

Patients with gingival overgrowth are offered two options, as follows:

Tissue biopsy: A tissue sample is taken from each affected site, with a maximum of three biopsies. For the procedure, lidocaine is first injected into the gum to numb the tissue. Then, a cookie-cutter instrument is pushed into the numbed skin, and a small piece of tissue is removed.
Gingivectomy: Surgical removal of the overgrown gingival.

Condition
Gingival Overgrowth

Drug Information available for: Cyclosporin Cyclosporine Calcium gluconate Phenytoin Phenytoin sodium

U.S. FDA Resources

Study Type:	Observational
Official Title:	Genes Associated With Hereditary and Drug-Induced Gingival Overgrowth

Further study details as provided by National Institutes of Health Clinical Center (CC):

Study Start Date:

February 2005

Detailed Description:

The purpose of this protocol is twofold: 1) to continue identification of genes associated with hereditary gingival fibromatosis (HGF), a type of gingival overgrowth 2) to investigate the genes up-regulated by medications that induce gingival overgrowth. These studies will establish if common mechanisms are involved in the hereditary and drug-induced processes. If a common pathway is identified, it could lead to the development of assays that could be used to screen new medications for their potential deleterious effects on periodontal tissues. In addition, understanding the mechanisms involved in gingival overgrowth could lead to the development of tissue engineering approaches to repair gingival defects. Genes will be identified from DNA samples collected from patients with hereditary gingival fibromatosis. These will be compared with DNA and tissue samples taken from patients taking medications known to induce gingival overgrowth (phenytoin, cyclosporine and calcium channel blockers).

Eligibility

Ages Eligible for Study:	2 Years to 80 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	Yes

Criteria

INCLUSION CRITERIA:

Patients of any age, gender, and racial/ethnic group with hereditary gingival fibromatosis (HFG) as diagnosed with HGF by clinical appearance that consists of attached gingival covering the lower 1/3 or more of the clinical crowns of teeth in an individual not taking medications associated with gingival changes.

Blood relatives of affected individuals who are at risk of inheriting HGF.

Patients of any age, gender, and racial/ethnic group taking one of the three medications associated with drug-induced gingival overgrowth (phenytoin diphenylhydantoin or Dilantin, cyclosporine, or calcium-channel blockers).

Patients with six or more teeth.

EXCLUSION CRITERIA:

Patients with significant cognitive impairment.

Pregnant patients or lactating patients.

Patients unwilling to give informed consent.

Patients with less than six teeth.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00104026

Contacts

Contact: Patient Recruitment and Public Liaison Office	(800) 411-1222	prpl@mail.cc.nih.gov
Contact: TTY	1-866-411-1010

Locations

United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike	Recruiting
Bethesda, Maryland, United States, 20892

Sponsors and Collaborators

National Institute of Dental and Craniofacial Research (NIDCR)

More Information

NIH Clinical Center Detailed Web Page This link exits the ClinicalTrials.gov site

Publications:

Boratynska M, Radwan-Oczko M, Falkiewicz K, Klinger M, Szyber P. Gingival overgrowth in kidney transplant recipients treated with cyclosporine and its relationship with chronic graft nephropathy. Transplant Proc. 2003 Sep;35(6):2238-40.

Casetta I, Granieri E, Desidera M, Monetti VC, Tola MR, Paolino E, Govoni V, Calura G. Phenytoin-induced gingival overgrowth: a community-based cross-sectional study in Ferrara, Italy. Neuroepidemiology. 1997;16(6):296-303.

Ellis JS, Seymour RA, Taylor JJ, Thomason JM. Prevalence of gingival overgrowth in transplant patients immunosuppressed with tacrolimus. J Clin Periodontol. 2004 Feb;31(2):126-31.

Study ID Numbers:	050103, 05-D-0103
Study First Received:	February 18, 2005
Last Updated:	January 15, 2009
ClinicalTrials.gov Identifier:	NCT00104026
Health Authority:	United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):

Periodontal Disease
Dilantin
Cyclosporin
Calcium-Channel Blockers
Genetics

Hereditary Gingival Fibromatosis
HGF
Periodontal Disease
Gingival Overgrowth
Gum Overgrowth

Study placed in the following topic categories:

Mouth Diseases
Phenytoin
Calcium, Dietary
Periodontal Diseases
Cyclosporine

Gingival Diseases
Fibromatosis
Stomatognathic Diseases
Gingival Overgrowth
Cyclosporins

ClinicalTrials.gov processed this record on January 16, 2009