Ozone gas plus biomimetic toothpaste and mouthwash to treat cancer therapy mouth sores
Official title: Combined Gas Ozone Therapy and Biomimetic Oral Care in the Management of Radio- and Chemotherapy-Induced Oral Mucositis: A Randomized Controlled Clinical Trial
Run by University of Pavia · NCT07491536 · Data updated 2026-11-12
This trial will test whether adding a biomimetic toothpaste and mouthwash to ozone gas therapy helps adults with chemo- or radiotherapy-induced mouth sores heal faster and have less pain.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | University of Pavia Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Pavia, Lombardy) |
| Status | Recruiting |
| Started | March 1, 2026 |
| Main results expected | December 1, 2026 |
| Study ends | December 15, 2026 |
| Registry record updated | March 24, 2026 |
| Trial ID | NCT07491536 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18) undergoing oncologic treatment for solid tumors, especially head and neck cancers, who have WHO grade 1–3 radio- or chemotherapy-induced oral mucositis and can comply with clinic visits and home oral care are the ideal candidates.
✕Probably not a fit
Patients with grade 4 mucositis, active oral infections, non-oncologic mucosal diseases, very recent high-dose head and neck radiotherapy, or who cannot perform domiciliary care are unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a monocentric, randomized, controlled, parallel-group trial at the University of Pavia comparing gas ozone therapy alone versus gas ozone therapy combined with a structured biomimetic oral care regimen (toothpaste and mouthwash) in adults with radio- or chemotherapy-induced oral mucositis. Eligible patients with WHO grade 1–3 mucositis are randomly assigned to one of the two arms and receive outpatient ozone applications plus home oral care as assigned. Outcomes include changes in mucositis severity, pain, oral function, and need for oncologic treatment modification. The protocol emphasizes standardized ozone delivery and a domiciliary biomimetic regimen to measure any added clinical benefit.
Why it matters
Potential benefit: If successful, the combined approach could reduce mucositis severity and pain, improve eating and oral function, and lower the risk of cancer treatment interruptions.
How similar studies have gone: Small dental and experimental studies suggest ozone can have antimicrobial and wound-healing effects, but robust randomized data specifically for cancer therapy-induced oral mucositis are limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 18 years * Confirmed diagnosis of radio- and/or chemotherapy-induced oral mucositis, grade 1-3 according to the WHO Oral Toxicity Scale * Undergoing oncologic treatment for solid malignancies, particularly head and neck cancers * Clinically stable general health condition (ASA physical status I-III) * Ability to understand and comply with study procedures, including domiciliary treatment and questionnaire completion * Written informed consent provided Exclusion Criteria: * Oral mucositis grade 4 according to the WHO Oral Toxicity Scale * Active fungal or bacterial oral infections (e.g., candidiasis, ulcerative stomatitis) * Traumatic ulcers, non-oncologic mucositis, or concomitant oral mucosal diseases (e.g., lichen planus, pemphigus, graft-versus-host disease) * Ongoing head and neck radiotherapy with cumulative dose \>70 Gy or completion within 7 days prior to enrollment * Use within 14 days prior to enrollment of mouthwashes, sprays, or gels containing hyaluronic acid, ozone, aloe vera, or similar bioactive agents * Systemic or topical therapies known to interfere with salivary function or mucosal healing (e.g., anticholinergics, tricyclic antidepressants, diuretics) * Known allergy or hypersensitivity to components of the oral care products or materials used during ozone therapy * Severe or uncontrolled systemic diseases (including hepatic, renal, respiratory, or cardiac insufficiency) * Severe immunosuppression or neutropenia (neutrophils \<1,000/mm³) * Pregnancy or breastfeeding * Alcohol or substance abuse, or any condition that may compromise adherence to the protocol * Inability to attend scheduled follow-up visits through Day 30
Where it's running
-
Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia
Pavia, Lombardy, Italy Recruiting
Study contacts
- Principal investigator: Andrea Scribante, Associate Professor — University of Pavia
- Study coordinator: Andrea Scribante, Associate Professor
- Email: andrea.scribante@unipv.it
- Phone: +39 0382516223
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Longer antibiotic prophylaxis after head and neck cancer surgery
This trial tests whether giving antibiotics for 7 days after major mouth and throat cancer surgery reduces wound infections compared with the standard 24-hour course.
-
Copaiba Mouthwash with Low-Level Laser Therapy to Prevent Mouth Sores After Stem Cell Transplant
This phase 2 trial tests whether a copaíba-based mouthwash, used four times daily, can help prevent oral mucositis in patients undergoing autologous hematopoietic stem cell transplantation.
-
Tai Chi during radiotherapy for head and neck cancer fatigue
This trial tests whether a 12-week Yang-style Tai Chi program added to usual care can reduce cancer-related fatigue in adults with head and neck cancer undergoing radiotherapy.
-
Topical Boswellia 2% Cream to Prevent Radiation Dermatitis in Head and Neck Cancer
A topical 2% Boswellia serrata cream is tested to see if it can prevent skin irritation from radiation in people with head and neck cancer.
-
Methylscape test in body fluids for multi-cancer detection in Colombia
A simple blood, urine, or saliva test called Methylscape is being tested to see if it can detect multiple cancers and identify where the signal is coming from, using people with cancer and healthy volunteers in Colombia.
-
Foot reflexology and ta-VNS for symptom relief in head and neck cancer during CCRT
This trial tests whether foot reflexology, transcutaneous auricular vagus nerve stimulation, and auricular acupressure can reduce pain, dry mouth, fatigue, and other symptoms for head and neck cancer patients receiving cisplatin-based chemoradiotherapy.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.