Natural History of Salivary Gland Dysfunction and Sjogren's Syndrome

Completed

Conditions studied: Lymphoma, Salivary Gland Disease, Sjogren's Syndrome, Xerostomia

In brief

This study will follow patients with salivary gland dysfunction to identify the long-term course of this disorder and its effects on the mouth, oral function, and overall health. Saliva is important in maintaining oral health and comfort. It moistens the mouth, lubricates food for easier swallowing, provides enzymes needed to begin the digestive process and promotes repair and cleansing of soft tissues of the mouth. Decreased salivary production or changes in salivary composition may affect oral and systemic health and cause an increase in tooth decay. Patients 4 years of age and older with dry mouth symptoms and a diagnosis of primary, secondary or incomplete Sj(SqrRoot)(Delta)gren s syndrome or salivary gland dysfunction due to radiation may be eligible for this study. Candidates will be screened with a complete medical and dental history and blood and saliva tests. Some patients will have a biopsy of the minor salivary glands, usually from the lower lip, to confirm or rule out the diagnosis of Sj(SqrRoot)(Delta)gren s syndrome and determine the extent of changes in the salivary glands. (A biopsy is the surgical removal of a small piece of tissue for laboratory examination.) The ability to taste and smell may also be evaluated, and patients may have an ultrasound examination of their swallowing function. Participants will have a general oral examination of the teeth and soft tissues of the mouth, general physical examination, eye examination and blood tests and will fill out a questionnaire on oral health and function. In addition, they will have the following tests and procedures: * Identification of possible fungal infection Patients rinse their mouth with 2 teaspoons of a salt-water solution and spit it in a sterile container for laboratory examination. If a fungal infection is detected, treatment will be offered. * Unstimulated salivary function assessment Saliva production is measured by collecting saliva samples through small suction cups connected to collection tubes over the salivary gland ducts in the mouth. * Stimulated salivary function assessment A sour-tasting liquid (2% citric acid) is applied to the top and sides of the tongue at 30-second intervals to stimulation saliva production while saliva is collected using the procedure described above. * Identification of markers of precancerous lesions The salivary gland biopsy done at the screening evaluation (or from outside sources) is examined for markers of precancerous lesions, as about 5 percent of patients with Sj(SqrRoot)(Delta)gren's syndrome develop a tumor called Non-Hodgkin s lymphoma. In some cases, the minor salivary glands may be re-biopsied a few years after the screening biopsy. Patients will be followed once a year with a comprehensive history and physical examination, eye examination, full oral examination, salivary function assessment and questionnaires about signs and symptoms of salivary gland dysfunction.

Key facts

Study ID
NCT00001852
Run by
National Institute of Dental and Craniofacial Research (NIDCR)
People needed
560
Starts
1999-04-09
Expected to finish
2017-11-29
Last updated by the study team
2019-12-17

Who can join

Age: 4 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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