ClinicalTrials.gg
CompletedNCT04265001Updated Feb 11, 2020

Topical Hyaluronic Acid and Recurrent Aphthous Stomatitis.

A Phase 3 interventional study of Hyaluronic acid in the form of hyaluronan sodium 25 mg/100 ml as a mouthwash in Recurrent Aphthous Stomatitis, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 18 Years to 30 Years. Per ClinicalTrials.gov, last updated 2020-02-11.

Sponsored by Cairo University · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Nov 2019, registered Feb 2020).
Phase
Phase 3
Study type
Interventional
Enrollment
34
Allocation
Randomized
Ages
18 Years to 30 Years
Sex
All
01

Study summary

This study was conducted to estimate the hypothesis that the topical hyaluronic acid mouthwash have no role in the treatment of recurrent aphthous stomatitis

Read the detailed description

Recurrent aphthous stomatitis (RAS) is a common and widely recognized disorder involving the oral mucosa. It occurs typically as a single or multiple well-defined painful self-limiting ulcerative lesions influencing the nonkeratinized oral mucous membrane surrounded by red halo. The prevalence of RAS is up to 25% in the world population, with recurrence rate of 50% every 3 mouths. The exact cause of RAS is uncertain, and accordingly numerous components are as yet being implicated such as genetic, hormonal, traumatic, nutritional, allergic, immunological, and psychological factors.

02

Conditions studied

  • Recurrent Aphthous Stomatitis

Keywords

  • recurrent aphthous stomatitis
  • chlorhexidine
  • hyaluronic acid
  • pain
  • topical
03

In context

Stomatitis, Aphthous

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

This study's enrollment of 34 is below 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 30 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

The inclusion criteria were as follows:

  • Age 18-30 years.
  • Minimum of 2 years of RAS history, with active ulcer less than 48 hours of recurrent aphthous stomatitis.

Exclusion criteria

Exclusion Criteria:

  • known history of to Chlorhexidine or hyaluronic acid.
  • Use of any medication as a treatment for the present active ulcer.
  • Smoking and presence of systemic diseases such as Behçet disease, anemia, Crohn's disease, ulcerative colitis, acquired immune deficiency syndrome, and liver or kidney disease.
  • Pregnant or breast-feeding women.
  • Stomach ulcer, duodenal ulcer, and inflammation of the stomach or the esophagus.
  • Treatment with systemic nonsteroidal anti-inflammatory drugs, systemic or other immune modulatory agents, oral antihistamines, or systemic antibiotics in the previous 3 months.
Terms in these criteria, in plain language(2)

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Care provider, Outcomes assessor)
Enrollment
34 participants (actual)

Study arms

  • Active comparator
    Control group

    Topical cholrhexidine hydrochloride 125 mg/100 ml available commercially (Hexitol; Arab Drug Company for Pharmaceutical and Chemical Industries, Cairo, Egypt) mouthwash. Topical cholrhexidine hydrochloride mouthwash treatment has been repeated three times per day for one week.

    Drug: Hyaluronic acid in the form of hyaluronan sodium 25 mg/100 ml as a mouthwash

  • Experimental
    Hyaluronic acid group (HA group)

    Topical hyaluronic acid in the form of hyaluronan sodium 25 mg/100 ml as a mouthwash (Aftamed; Bioplaxpharma, UK).Topical hyaluronic acid mouthwash treatment has been repeated three times per day for one week.

    Drug: Hyaluronic acid in the form of hyaluronan sodium 25 mg/100 ml as a mouthwash

Interventions

  • DrugHyaluronic acid in the form of hyaluronan sodium 25 mg/100 ml as a mouthwash

    Topical mouthwash used three times daily for one week and patients were not allowed to eat or drink for one hour after rinsing.

    Also known as: (Aftamed; Bioplaxpharma, UK)

06

What researchers measure

Primary outcomes

  1. Pain score

    Pain assessment scale, visual analog scale (VAS) comprising of a 10-cm straight line among ends, with 0 representing no pain (better outcome) and 10 for intolerable pain (worse outcome) after irritation of the ulcer with the periodontal probe.

    Time frame: one week

Secondary outcomes

  1. Ulcer size

    The ulcer size was evaluated by determining the distance between two opposed boundaries of the ulcer edge, using a periodontal probe in millimeters.Score for clinical improvement of the sign where high values indicate worse outcome but low values indicate better outcome.

    Time frame: one week

  2. Duration of healing

    period of the ulceration for complete healing

    Time frame: one week

07

Study locations

1 site
  • Faculty of Dentistry, Cairo University
    Cairo, 115, Egypt
08

References and documents

Individual participant data

Plan to share: No — Because the research not published yet.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2019 to primary completion in Jan 2020, 2 months.

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

Registered
Feb 9, 2020
First posted
Feb 11, 2020
StartActual
Nov 1, 2019
Primary completionActual
Jan 20, 2020
CompletionActual
Jan 20, 2020
Last update
Feb 11, 2020
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 Feb 11, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04265001
Lead sponsor
Cairo University
Responsible party
Mai Zakaria Ibrahium Mohammed (Lecturer of Oral Medicine and Periodontology, Cairo University, Egypt, Cairo University) — Principal investigator
First posted
Feb 11, 2020
Start date
Nov 1, 2019
Primary completion
Jan 20, 2020
Completion
Jan 20, 2020
Last update
Feb 11, 2020

Oversight

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

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