Dexamethasone to Treat Oral Lichen Planus
|First Received Date ICMJE||May 16, 2005|
|Last Updated Date||March 3, 2008|
|Start Date ICMJE||May 2005|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE||Not Provided|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00111072 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE||Not Provided|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Dexamethasone to Treat Oral Lichen Planus|
|Official Title ICMJE||Dexamethasone 0.01% Solution for the Treatment of Oral Lichen Planus|
This study will evaluate the effectiveness of dexamethasone 0.01% solution in treating pain associated with oral lichen planus, a chronic disease that causes painful ulcers inside the mouth. The cause of lichen planus not known, but it may be related to an allergic or immune reaction. This study will examine what causes the disease, the pain associated with it, its impact on patients' lives and the use of dexamethasone to treat it.
Patients 12 or older with severe oral lichen planus may be eligible for this study. Candidates are screened with blood tests and a biopsy to confirm the diagnosis and provide tissues for research purposes. For the biopsy, two small circles of tissue, each about 4 mm (1/5 inch) across, are surgically removed.
Participants are randomly assigned to rinse their mouth with either a dexamethasone solution or placebo (a rinse with no active ingredient) four times a day for 4 weeks. During this period they may not use any oral or topical pain or anti-inflammatory medications except diphenhydramine 12.5 mg/5 ml (a topical numbing medicine) and Tylenol, both which are provided by the study.
Patients come to the NIH Clinical Center for three 1-hour visits (once every two weeks) and once more 4 weeks after the study medications are stopped. At the first three visits patients submit a pain diary in which they have recorded information on pain levels, and they are checked for any medication side effects. On the third visit (the last day they take the study drug) they are also tested for adrenal suppression that may have resulted from taking the steroid rinse. For this test they are given an injection of a drug called synacthen and after 1 hour, a blood sample is drawn. Patients return for a final visit 1 month later to determine if their disease returns or improves after the medication is stopped.
This is a study of pain, oral function and salivary biomarkers in oral lichen planus.
The primary objective of the study is to determine the efficacy of dexamethasone rinse in reducing pain in patients with oral lichen planus. Secondary objectives are to evaluate a novel scoring system of severity of lichen planus, assess the changes in salivary biomarkers associated with the treatment, assess the impact of oral lichen planus on the quality of life using the SF-36 instrument and the Oral Health Impact Profile (OHIP-14).
This is a double-blind parallel group design with 20 patients in each arm. Our primary outcome measure will be change in the visual analog scale that assesses pain. We will consider a decrease of 30 mm as clinically significant. Secondary outcomes will include reduction of oral symptoms as measured by the OHIP-14, amount of topical analgesic used, improvement in quality of life scores, and the severity of lesions as assessed with two scales.
A new oral lichen planus scoring system will be evaluated for validity, reliability and sensitivity to change. This system will quantify the severity and amount of oral lichen planus lesions on a scale of 0 to 66. Validation of this scale is needed for future studies of oral lichen planus. The validity and sensitivity to change will be assessed by correlation of the scores with patient based outcomes as well as global scale. Inter- and intra-rater reliability will also be tested.
The principal study interventions will be dexamethasone 0.01% oral rinse or identical in appearance and taste placebo rinse. Additional allowed interventions will be standard oral topical analgesic rinse and acetaminophen on an as needed basis. Diagnostic and research evaluations will include complete history and oral and general physical examination, laboratory investigations, saliva collection, and oral mucosal biopsy. The interventional period of the trial will be 4 weeks.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 2|
|Study Design ICMJE||Primary Purpose: Treatment|
|Condition ICMJE||Oral Lichen Planus|
|Intervention ICMJE||Drug: dexamethasone 0.01% solution|
|Study Arms||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Estimated Completion Date||March 2006|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
Biopsy confirmed symptomatic oral lichen planus. World Health Organization histological criteria (12) in combination with a compatible clinical appearance will be used for diagnosis.
No current treatment with immunomodulatory agents. A one-month washout period will be required prior to enrollment if patients are taking immunomodulatory agents. Prior treatment with topical steroids will be allowed provided the presence of symptomatic lesions.
Age greater than 12 years old. Lichen planus is very rare in patients younger than 40 years old. Patients must rinse and spit the medication rather than swallow it. Oral rinses such as topical fluorides are not recommended for young children.
Patients of both sexes and all racial and ethnic groups will be eligible.
Symptomatic lichen planus with a score of at least 35 mm on a visual analog scale for pain.
Oral lichen planus score of at least 3 on the lichen planus severity scale.
Unable to undergo oral biopsy for diagnosis.
Asymptomatic lichen planus with no ulcerated or erythematous oral lesions.
Treatment with immunomodulatory agents within 1 month of the randomization.
Hepatitis C infection.
Documented hypersensitivity to dexamethasone.
Pregnancy or lactation.
Poorly controlled diabetes.
Inability or unwillingness to give written informed consent.
|Ages||Child, Adult, Senior|
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries ICMJE||United States|
|Removed Location Countries|
|NCT Number ICMJE||NCT00111072|
|Other Study ID Numbers ICMJE||050155
|Has Data Monitoring Committee||Not Provided|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||National Institute of Dental and Craniofacial Research (NIDCR)|
|Collaborators ICMJE||Not Provided|
|Investigators ICMJE||Not Provided|
|PRS Account||National Institutes of Health Clinical Center (CC)|
|Verification Date||March 2006|
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