Theravex® for Burning Mouth Syndrome

April 27, 2026 updated by: Biointelligent Technology Systems SL

Mineral-ionic Magnesium/Calcium Oral Rinse (THERAVEX® Total Oral Care Plus) in Primary Burning Mouth Syndrome: a Double-blind Randomized Placebo-controlled Trial

In this randomized, double-blind, placebo-controlled trial, 116 adults with primary BMS were assigned (1:1) to receive THERAVEX® Total Oral Care Plus or placebo for 8 weeks. Participants rinsed 10 mL for 60 seconds three times daily. The primary outcome was change in burning pain intensity (Numeric Rating Scale, NRS). Secondary outcomes included responder rate (≥2-point NRS reduction), Oral Health Impact Profile-14 (OHIP-14), Xerostomia Inventory, Patient Global Impression of Change (PGIC), and safety assessments.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
116

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Alexandria, Egypt
        • Maxillofacial surgery department, Alexandria university hospital, Alexandria university, Alexandria, Egypt

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Adults aged ≥18 years. Diagnosis of primary Burning Mouth Syndrome (BMS) according to International Classification of Orofacial Pain (ICOP) and ICHD-3 criteria.

Daily intraoral burning or dysaesthetic sensation persisting for ≥3 months and occurring ≥2 hours per day.

Clinically normal oral mucosa without visible lesions. Absence of identifiable local or systemic causes of oral burning following standard diagnostic workup.

Ability and willingness to comply with study procedures and provide written informed consent.

Exclusion Criteria:

Presence of secondary causes of oral burning (e.g., oral candidiasis, nutritional deficiencies, uncontrolled diabetes mellitus, thyroid disorders).

Autoimmune diseases affecting the oral cavity (e.g., Sjögren syndrome). Active oral mucosal pathology or lesions. Pregnancy or breastfeeding. Known hypersensitivity to any component of the study product. Use of topical clonazepam, capsaicin, systemic neuromodulators, or other treatments for BMS within 14 days prior to enrollment.

Severe psychiatric disorders or conditions that could interfere with study participation or outcome assessment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: THERAVEX® Total Oral Care Plus (Mineral-Ionic Oral Rinse)
Device: THERAVEX® Total Oral Care Plus
Participants assigned to the active arm received a mineral-ionic oral rinse containing magnesium chloride and calcium chloride (THERAVEX® Total Oral Care Plus). They were instructed to rinse with 10 mL of the solution for 60 seconds, three times daily, for a total duration of 8 weeks. Participants were advised to refrain from eating or drinking for at least 30 minutes after each use to ensure adequate mucosal exposure.
Placebo Comparator: Placebo Oral Rinse
Device: THERAVEX® Total Oral Care Plus
Participants assigned to the active arm received a mineral-ionic oral rinse containing magnesium chloride and calcium chloride (THERAVEX® Total Oral Care Plus). They were instructed to rinse with 10 mL of the solution for 60 seconds, three times daily, for a total duration of 8 weeks. Participants were advised to refrain from eating or drinking for at least 30 minutes after each use to ensure adequate mucosal exposure.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Burning Pain Intensity (Numeric Rating Scale, NRS)
Time Frame: 8 weeks
Change in intraoral burning pain intensity from baseline to Week 8, measured using an 11-point Numeric Rating Scale (NRS; 0 = no pain, 10 = worst imaginable pain). Participants reported their average daily pain over the preceding week at each assessment time point.
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Biointelligent Technology Systems SL

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Alexandria University
Sohag University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 6, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 6, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 27, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 27, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 4, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 27, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Soh-med-24-10-PD

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Yes. Individual Participant Data (IPD) that underlie the results reported in this study, after de-identification, will be made available upon reasonable request to the corresponding author, subject to institutional review and data-sharing agreements.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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