Treatment of recurrent aphthous stomatitis with an intra-oral patch
| ISRCTN | ISRCTN15873887 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN15873887 |
| ClinicalTrials.gov (NCT) | Nil known |
| Clinical Trials Information System (CTIS) | CIV-ID 23-12-045096 |
| Protocol serial number | RAS01-M045A |
| Sponsor | Mucocort AB |
| Funder | Umeå Biotech Incubator |
- Submission date
- 13/08/2024
- Registration date
- 14/08/2024
- Last edited
- 13/08/2024
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Oral Health
Plain English summary of protocol
Background and study aims
Recurrent aphthous stomatitis (RAS) is the presence of small, painful sores inside the mouth. The treatments of RAS currently available on the market are primarily aimed at alleviating pain and facilitating healing to reduce symptoms. A variety of local therapies have been used, but those studies have low or very low evidence of efficacy. There are currently a variety of systemic treatments on the market, based mainly on corticosteroids, other immunosuppressive agents and antimicrobial agents. These treatments (such as pentoxifylline, colchicine, dapsone and thalidomide) should be given with caution due to the potential for adverse events.
Thus, there is a need for improved therapy for individuals with RAS, both in terms of effectiveness, safety, and simplicity. In this clinical trial, a dehydrating mucoadhesive oral patch will be compared with standard care (no treatment) in research subjects with recurrent aphthous stomatitis (RAS). The objective is to evaluate the effectiveness and safety of a dehydrating oral patch in subjects with RAS.
Who can participate?
Patients aged 12-70 years who have had at least two RAS episodes during the last 6 months
What does the study involve?
Participants will be randomly allocated to active treatment and receive 1-3 patches depending on the number of ulcers. The remaining participants will not be treated (standard care). The patch/patches will be applied by a dentist or dental hygienist. The pain will be estimated by the participants using an NRS, which means that they choose a number between 0 (no pain) and 10 (worst possible pain). The participants will estimate their pain before application and after 10 minutes after application or after non-application of the patch. This pain assessment will be repeated at the Clinic after 1 hour. The pain will then be assessed at different time points (2, 4, 6 and 8 hours) following application/no application of the patch. This data will be collected together with the quality of life data through a diary which the participants will be asked to send in the day after the primary visit.
What are the possible benefits and risks of participating?
The benefit of participating is instant relief of pain caused by RAS. In this clinical investigation, the patch will be applied by a dentist or dental hygienist. Due to the strong adhesive effect of the patch, the risk of aspiration of the patch is minimal. Even if the patch is accidentally lost during application, the chance that the patch will attach to the oral mucosa (mouth lining) before it reaches the lungs is significant.
Where is the study run from?
Mucocort AB (Sweden)
When is the study starting and how long is it expected to run for?
May 2023 to June 2025
Who is funding the study?
Umeå Biotech Incubator (Sweden)
Who is the main contact?
Mats Jontell, mgjontell@gmail.com
Contact information
Public, Scientific, Principal investigator
Vedensgatan 41
Borås
50456
Sweden
 ORCID ID |
0000-0003-3753-7314 |
|---|---|
| Phone | +46 (0)725107979 |
| jontell@odontologi.gu.se |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Randomized parallel-group trial |
| Secondary study design | Randomised parallel trial |
| Study type | Participant information sheet |
| Scientific title | A randomized, parallel-group, comparative investigation of M045A in the treatment of recurrent aphthous stomatitis |
| Study acronym | Aphthastop |
| Study objectives | The null hypothesis (H0) for the primary endpoint is that M045A (intra-oral patch) is not superior to no treatment in reducing pain after 10 minutes following application/no application of M045A. H1 for the primary endpoint is that M045A is superior to no treatment in reducing pain after 10 minutes following application/no application of M045A. |
| Ethics approval(s) |
Approved 10/04/2024, Swedish Ethical Review Authority (Box 2110, Uppsala, 750 02, Sweden; +46 (0)10-475 08 00; registrator@etikprovning.se), ref: Dnr 2024-02056-01 |
| Health condition(s) or problem(s) studied | Recurrent aphthous stomatitis (RAS) |
| Intervention | The participants will be invited through an invitation letter and asked to contact the site when they have prodromal symptoms or when they present with ulcers. The participants referred to the study site may also be asked to participate as part of their primary visit if they present with ulcers. All participants will be subjected to an ordinary oral medicine examination including questions about their oral and medical health. After RAS has been established as the diagnosis, the participants will be informed about the clinical investigation by the investigator (oral and written). Informed consent needs to be collected before any investigation-specific activities can take place. Once the consent form has been signed, the PI or delegated site staff will be responsible for the completion of a CRF for each of the 50 research subjects. The CRF will include participant details (initials and subject ID), medical history, visit details and dates, questionnaires, any related adverse events (AEs), any device deficiencies and details of withdrawal from the study if appropriate. Participants will be randomized to active treatment and receive 1-3 patches depending on the number of ulcers. The remaining participants will not be treated (standard care). The patch/patches will be applied by a dentist or dental hygienist. The pain will be estimated by the participants using an NRS, which means that they choose a number between 0 (no pain) and 10 (worst possible pain). The participants will estimate their pain before application and after 10 minutes after application or after non-application of the patch. This pain assessment will be repeated at the Clinic after 1 hour. The pain will then be assessed at different time points (2, 4, 6 and 8 hours) following application/no application of M045A. This data will be collected together with the quality of life data through a diary which the participants will be asked to send in the day after the primary visit. Randomization: Stratification by age and pain (age; ≥12 years - ≤18 years, >18 years; pain Numeric Rating Scale [NRS] 4-7, >7). |
| Intervention type | Device |
| Phase | Phase III |
| Drug / device / biological / vaccine name(s) | Intra-oral patch (medical device) |
| Primary outcome measure(s) |
Pain intensity measured using a numeric rating scale (NRS) at baseline and 10 minutes |
| Key secondary outcome measure(s) |
1. Pain intensity measured using a NRS at baseline and 1, 2, 4, 6, and 8 hours |
| Completion date | 01/06/2025 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Other |
| Lower age limit | 12 Years |
| Upper age limit | 70 Years |
| Sex | All |
| Target sample size at registration | 50 |
| Key inclusion criteria | 1. Males or females, 12 -70 years of age 2. ≥2 RAS episodes over the past 6 months 3. ≤3 wounds at the time of the study visit 4. The diameter of the wounds <10 mm 5. The pain from RAS ≥4 on the NRS 6. The subjects should have the ability and willingness to provide informed consent |
| Key exclusion criteria | 1. Treated at any time with mucosal topical, oral, or systemic corticosteroids less than 1 month prior to screening. 2. On TNF-alpha modulating drugs or DMARDs less than 1 month prior to screening 3. Suffering from any oral mucosal disease other than RAS at the time of enrollment 4. Any other condition as judged by the investigator to make the investigation inappropriate 5. Current alcohol or substance abuse 6. Participating in any other clinical trial or have participated in any other clinical trial within 1 month prior to the study start |
| Date of first enrolment | 01/09/2024 |
| Date of final enrolment | 01/06/2025 |
Locations
Countries of recruitment
- Sweden
Study participating centres
Göteborg
411 34
Sweden
Särö
429 41
Sweden
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Published as a supplement to the results publication |
| IPD sharing plan | The datasets generated and/or analysed during the current study will be published as a supplement to results publication. |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
13/08/2024: Study's existence confirmed by the Swedish Ethical Review Authority.
