Efficacy and Safety Study of Yunnan Baiyao on Minor Recurrent Aphthous Stomatitis

NCT ID: NCT01652625

Last Updated: 2012-07-30

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 227 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2010-03-31
• Study Completion Date: 2011-03-31

Brief Summary

Recurrent aphthous stomatitis (RAS) is a common recurrent oral disorder with no curative treatment available to date. The challenge remains in patients that do develop drug resistance and/or secondary infection, although topical corticosteroids and antimicrobials are the first therapeutic choice. The aim of the study was to evaluate the efficacy and safety of an herbal extract of Yunnan Baiyao formulated in toothpaste as an alternative therapy for minor RAS.

Yunnan Baiyao is a well-known traditional Chinese medicine, formulated in a powder or capsule form. It was initially and widely used in wounds for its anti-hemorrhagic hemostatic function, and further in gastrointestinal bleeding. Yunnan Baiyao powder has been generally applied on RAS among Chinese population.

In this study, a randomized, double-blind, placebo-controlled clinical trial (from March 2010 to March 2011) was conducted on a cohort of 227 minor RAS patients. The toothpaste containing Yunnan Baiyao was used twice daily as part of the patient's routine oral hygiene for 5 days. An assessment of ulcerative size and pain was recorded on Day 0 (baseline), Day 3 and Day 5. Any noted adverse reactions were recorded.

Conditions

Recurrent Aphthous Stomatitis

Keywords

Yunnan Baiyao; recurrent aphthous stomatitis; clinical trial

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Yunnan Baiyao toothpaste

The toothpaste containing 6.5 milligrams of Yunnan Baiyao was used twice daily as part of the patient's routine oral hygiene for 5 days.

Group Type: EXPERIMENTAL

Yunnan Baiyao toothpaste

Intervention Type: DRUG

The patients were instructed to brush the teeth twice daily for 5 days, using 1 gram of Yunnan Baiyao toothpaste (equivocal to approximately 6-7 lines on a standard toothbrush) for 3 minutes. 6.5 milligrams of Yunnan Baiyao active extract were contained in 1 gram of the toothpaste.

placebo toothpaste

One gram of placebo toothpaste was used twice daily by the control group patients. Except for the active Yunnan Baiyao extract, all ingredients contained in the placebo-toothpaste were the same as that in the experimental toothpaste.

Group Type: ACTIVE_COMPARATOR

Placebo toothpaste

Intervention Type: DRUG

One gram of the placebo toothpaste was used twice daily by the control group patients. Except for the active Yunnan Baiyao extract, all ingredients contained in the placebo-toothpaste were the same as that in the experimental toothpaste.

Interventions

Yunnan Baiyao toothpaste

The patients were instructed to brush the teeth twice daily for 5 days, using 1 gram of Yunnan Baiyao toothpaste (equivocal to approximately 6-7 lines on a standard toothbrush) for 3 minutes. 6.5 milligrams of Yunnan Baiyao active extract were contained in 1 gram of the toothpaste.

Intervention Type: DRUG

Placebo toothpaste

One gram of the placebo toothpaste was used twice daily by the control group patients. Except for the active Yunnan Baiyao extract, all ingredients contained in the placebo-toothpaste were the same as that in the experimental toothpaste.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Both male and female aged 18 to 65 years old;

2. Patients diagnosed as minor recurrent aphthous stomatitis with the duration of each ulcer in excess of 5 days;

3. Fresh ulcers available with less than 72 hours eruption.

Exclusion Criteria

1. Hypersensitive to various medical agents;

2. Concurrent acute infectious disease;

3. Pregnancy or lactation;

4. Concurrent other immunology disorders;

5. Accepting systemic administration of corticosteroids or immunosuppressive agents within 3 months;

6. Aphthous-like ulcers related to certain systemic disorders such as ulcerative colitis, Crohn's disease, Behcet's syndrome, serious anemia;

7. Aphthous-like ulcers related to drug such as non-steroidal anti-inflammatory drugs (NSAIDs) and anti-histamines;

8. Accepting anaesthetic therapy within 24 hours, or systemic antibiotics within 2 weeks, or other management for oral ulcers within 72 hours prior to the study;

9. Neoplasm patients;

10. Volunteers of other clinical trials on medical agents or toothpaste within one month.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Peking University

OTHER

Sponsor Role: lead

Responsible Party

Xiaosong Liu

associate professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Other Identifiers

Peking University

Identifier Type: -

Identifier Source: org_study_id