The Effect of 2-DeNT Oral Topical Powder on Minor Recurrent Aphthous Ulcer

Study Overview
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Brief Summary
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This is a prospective, randomized, blinded, placebo-controlled, crossover clinical trial to evaluate the efficacy of 2-DeNT oral topical powder in the treatment of recurrent aphthous stomatitis (RAS). To be included in the study, subjects must have had minor RAS ulcers of less than 48 hours duration. It was randomly determined which powder was used first; all subjects used both the 2-DeNT powder and the placebo powder. Subjects applied the powder twice daily and maintained a daily log recording the size of the ulcer, its erythema score, and their level of pain. The subjects continued applying the 2-DeNT powder until the ulcer was resolved.

Official Title
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The Effect of 2-DeNT Oral Topical Powder on Minor Recurrent Aphthous Ulcer

Conditions
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Minor Recurrent Aphthous Stomatitis Lesions

Intervention / Treatment
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* Drug: 2-DeNT powder
* Drug: Placebo Comparator


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: a history of minor recurrent aphthous stomatitis (RAS) lesions occurring at least 3-4 time/ year, and usually requiring 5 or more days to resolve presence of an active ulcer of less than 48 hours duration on either the buccal or labial mucosa (making them more easily accessible for powder application) willing and able to give informed consent Exclusion Criteria: pregnant or lactating if ulcers were manifestations of a systemic disease process such as ulcerative colitis, Crohn's disease, Behcet's syndrome, or anemia; concurrent clinical conditions that could either pose a health risk to the patient by being involved in the study or potentially influence the outcome of the study hypersensitivity to dexamethasone, diphenhydramine, tetracycline, metronidazole, nystatin, karaya gum, or zinc oxide having used corticosteroids, oral retinoids, or other immunomodulatory agents within one month of participation in the study; non-steroidal anti-inflammatory agents (e.g., aspirin, ibuprofen, etc.), acetaminophen, or oral antihistamines chronically within one month of participation in the study or any use within five days of participation in the study; topical medication (including steroids, retinoids, and anti-microbial drugs) within two weeks of participation in the study, systemic antibiotics within two weeks of participation in the study; any preparation or medication (OTC or prescription) applied to the ulcer within 48 hours of participation in the study history of drug or alcohol abuse having had any dental work within 2 weeks of study entry having had any orthodontic or oral appliances (that could cause oral trauma) within 1 cm of the ulcer or any recollection of trauma in the area of the ulcer participating in any other study involving investigational or marketed products within 1 month of study entry or plans to participate in such an investigation during this study.

Ages Eligible for Study
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Minimum Age: 12 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: placebo<br>placebo powder containing zinc oxide, karaya gum, and yellow dye, which was added to imitate the color of the original powder, applied twice a day until the ulcer had resolved, an expected average of 3-5 days | Drug: Placebo Comparator<br> <br> * Other names: placebo powder containing zinc oxide, karaya gum, and yellow dye, which was added to imitate the color of the original powder;|
| Experimental: 2-DeNT powder<br>2-DeNT powder containing dexamethasone, diphenhydramine, tetracycline, metronidazole, nystatin, zinc oxide, and karaya gum, applied twice a day until the ulcer had resolved, applied twice a day until the ulcer had resolved, in an expected average of 3 to 5 days | Drug: 2-DeNT powder<br>* powder included dexamethasone, diphenhydramine, tetracycline, metronidazole, nystatin, zinc oxide, and karaya gum<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Ulcer size | Size was measured from the outside edge of the white border to the outside edge of the opposite white border. If the ulcer was oval in shape, its longest dimension was measured. | From time of randomization until ulcer was healed, an expected average of 3 to 5 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Erythema | Erythema levels were recorded on a scale of 0 to 4 (0= no redness, 1= faint redness, 2= light red/pink, 3= moderate redness, 4= severe redness) using a guide that provided both picture and word descriptions of the degree of redness associated with each number on the scale | From time of randomization until ulcer was healed, an expected average of 3 to 5 days |