Completed

NCT Number: NCT07564843

Theravex® for Burning Mouth Syndrome

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.

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Key information

Conditions

Primary Burning Mouth Syndrome (BMS)

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

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

Alexandria, Egypt

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

THERAVEX® Total Oral Care Plus

Device

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.

Primary outcomes

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.

Sponsors and collaborators

Lead sponsor

Biointelligent Technology Systems SL

Industry

Collaborators

Alexandria University
Sohag University

Registry information

Official study title

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

Important dates

Study start: 2024
Primary completion: 2024
Study completion: 2025
First posted: May 4, 2026
Registry last updated: May 4, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.