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Not yet recruitingNCT06993337Updated May 28, 2025

Effect of Topical Bromelain Versus Topical Corticosteroids in the Management of Recurrent Aphthous Stomatitis

A Phase 2 interventional study of 35% Topical Bromelain in Orabase and 50% Topical Bromelain in Orabase in Recurrent Aphthous Stomatitis, sponsored by Cairo University. Not yet recruiting. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-05-28.

Sponsored by Cairo University · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by May 2026, 5 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
63
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

Bromelain, a natural product, exhibits anti-inflammatory, immunomodulatory, and wound-healing properties. However, its efficacy in treating oral mucosal ulcers remains unexplored. This study aims to evaluate the effect of bromelain as a safe alternate for management of RAS.

02

Conditions studied

  • Recurrent Aphthous Stomatitis

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03

In context

Stomatitis, Aphthous

63 studies on the registry are indexed under Stomatitis, Aphthous; 17 are open to participants now.

This study's planned enrollment of 63 is above the median of 41 across 54 interventional studies indexed under Stomatitis, Aphthous.

Browse Stomatitis, Aphthous studies →

Lead sponsor

Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged 18-60 years.
  • Diagnosed with RAS.
  • Onset of ulcer within the last 48 hours.
  • Willingness to participate and provide .

Exclusion criteria

Exclusion Criteria:

  • History of hematological deficiencies, GIT disorders, Behcet's disease and major systemic diseases.
  • Pregnant or breastfeeding patients.
  • Previous treatment for the current ulcer episode.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Outcomes assessor)
Enrollment
63 participants (estimated)

Study arms

  • Experimental
    35% Topical Bromelain in Orabase

    Participants in this group will receive 35% bromelain gel incorporated into an orabase adhesive medium.

    Dietary Supplement: 35% Topical Bromelain in Orabase

  • Experimental
    50% Topical Bromelain in Orabase

    Participants assigned to this group will be treated with 50% bromelain gel formulated in orabase.

    Dietary Supplement: 50% Topical Bromelain in Orabase

  • Active comparator
    0.1% Topical Triamcinolone Acetonide in Orabase

    This group will receive the standard treatment of 0.1% triamcinolone acetonide in orabase, commonly used for managing Recurrent Aphthous Stomatitis.

    Drug: 0.1% Topical Triamcinolone Acetonide in Orabase

Interventions

  • Dietary supplement35% Topical Bromelain in Orabase

    Bromelain is a natural proteolytic enzyme derived from pineapple, recognized for its broad range of pharmacological properties. It exhibits significant anti-inflammatory effects by reducing edema. In addition to its anti-inflammatory activity, bromelain possesses antioxidant and analgesic properties.

  • Dietary supplement50% Topical Bromelain in Orabase

    Bromelain is a natural proteolytic enzyme derived from pineapple, recognized for its broad range of pharmacological properties. It exhibits significant anti-inflammatory effects by reducing edema. In addition to its anti-inflammatory activity, bromelain possesses antioxidant and analgesic properties.

  • Drug0.1% Topical Triamcinolone Acetonide in Orabase

    Triamcinolone acetonide in orabase, a corticosteroid-based standard treatment for Recurrent Aphthous Stomatitis (RAS), is used for its strong anti-inflammatory and immunosuppressive effects. In this study, it serves as the conventional treatment against the novel therapy

06

What researchers measure

Primary outcomes

  1. Pain associated with ulcers

    Pain reduction will be measured using a visual analog scale (VAS). VAS is a self-reported pain scores ranging from 0 to 10

    Time frame: Recorded at baseline, day 2, day 4 and day 7

Secondary outcomes

  1. Reduction in ulcer size

    The reduction in ulcer size will be assessed using periodontal probe to measure dimensions in millimeters (mm)

    Time frame: Recorded at baseline, day 2, day 4 and day 7

  2. Number of oral ulcers

    Time frame: Recorded at baseline, day 2, day 4 and day 7

  3. Healing time of oral ulcer

    The time to complete healing will be determined by the number of days until the ulcer is no longer visible upon clinical examination

    Time frame: Recorded at baseline, day 2, day 4 and day 7

  4. Oral ulcer activity index

    Oral ulcer activity index will be measured by Composite index (CI). CI score (0-10) is calculated by summing of subscale scores of oral ulcer activity (0 vs 1), oral ulcer-related pain status evaluated by categorized VAS (0-5) and the mean global functional disability score evaluated by 5-point Likert-type scale (0-4)

    Time frame: Recorded at baseline, day 2, day 4 and day 7

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2025; primary completion for May 2026, 11 months later.

How these figures are worked out, and which studies are left out of them.

Registered
May 14, 2025
First posted
May 28, 2025
StartEst.
Jun 15, 2025
Primary completionEst.
May 15, 2026
CompletionEst.
Jun 15, 2026
Last update
May 28, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06993337
Lead sponsor
Cairo University
Responsible party
Omnia Ahmed Ayoub Mohamed (Master's Student in Oral Medicine, Cairo University) — Principal investigator
First posted
May 28, 2025
Start date
Jun 15, 2025 (estimated)
Primary completion
May 15, 2026 (estimated)
Completion
Jun 15, 2026 (estimated)
Last update
May 28, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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