NCT02789605

Brief Summary

Recurrent aphthous stomatitis (RAS) is a frequent condition characterized by recurrent and painful oral ulcers with unknown pathophysiology. Recent studies suggest that a dysregulation of the oral microbiota may be implicated. Currently, therapies for RAS are limited by severe side effects or inconstant effectiveness. The aim of this study is to assess the effectiveness and safety of a probiotic, the Lactobacillus rhamnosus Lcr35® , in the treatment of RAS. A placebo-controlled, parallel study will be conducted in 40 subjects with RAS. Treatment consisted on the administration of the daily probiotics or placebo during 3 months.All patients will be then followed up for additional 3months without treatment. The main outcome measure will be the number of occurring aphtae.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Jan 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 14, 2016

Completed
2 months until next milestone

First Posted

Study publicly available on registry

June 3, 2016

Completed
1.6 years until next milestone

Study Start

First participant enrolled

January 4, 2018

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 25, 2019

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 15, 2020

Completed
Last Updated

March 24, 2026

Status Verified

December 1, 2019

Enrollment Period

1.9 years

First QC Date

April 14, 2016

Last Update Submit

March 20, 2026

Conditions

Keywords

Aphthous Stomatitis [C07.465.864.750]

Outcome Measures

Primary Outcomes (1)

  • number of aphtae

    The number of aphtae

    from baseline at 3 months

Secondary Outcomes (2)

  • Quality of life

    At 3 months

  • Satisfaction patient

    At 3 months

Study Arms (2)

Bacilor

EXPERIMENTAL

Patient receiving Lactobacillus rhamnosus Lcr35®, orally taken, 4 times a day, during 3 months

Drug: Bacilor

Placebo

PLACEBO COMPARATOR

Patient receiving placebo, orally taken, 4 times a day, during 3 months

Drug: Placebo

Interventions

Patient receiving Lactobacillus rhamnosus Lcr35®, orally taken, 4 times a day, during 3 months. Then all patients will be then followed up for 3 additional months without treatment.

Bacilor

Patients of group B will took the placebo similarly at the Lactobacillus rhamnosus Lcr35® orally . All patients will be then followed up for 3 additional months without treatment.

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • year-old or more
  • Recurrent idiopathic aphtous stomatitis with at least one new lesion per month during the past 6 months.

You may not qualify if:

  • Symptomatic aphtosis associated with Crohn or Behcet disease
  • Concomitant use of probiotic for any other reason
  • Systemic use of colchicine or steroids or immunosuppressive drugs during the past 3 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHU de NIce - Dermatologie

Nice, Alpes-Maritimes, 06200, France

Location

Related Publications (1)

  • Dugourd PM, Martin H, Fontas E, Velin M, Montaudie H, Lacour JP, Passeron T. Probiotics for recurrent idiopathic aphthous stomatitis in adults: a placebo-controlled randomized trial. J Eur Acad Dermatol Venereol. 2020 May;34(5):e239-e240. doi: 10.1111/jdv.16199. Epub 2020 Feb 16. No abstract available.

MeSH Terms

Conditions

Stomatitis, Aphthous

Condition Hierarchy (Ancestors)

StomatitisMouth DiseasesStomatognathic Diseases

Study Officials

  • Passeron Thierry, PhD

    CHU de Nice, Hôpital Archet, Dermatologie

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 14, 2016

First Posted

June 3, 2016

Study Start

January 4, 2018

Primary Completion

November 25, 2019

Study Completion

July 15, 2020

Last Updated

March 24, 2026

Record last verified: 2019-12

Data Sharing

IPD Sharing
Will not share

Locations