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Lactobacillus rhamnosus GG alleviates oral mucositis in patients undergoing radiotherapy for malignant head and neck tumors: a randomized controlled trial

NCT ID NCT06390176

NEW Sponsor: West China Hospital Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 09, 2026 · Last updated Sep 09, 2026

Summary

Radiation therapy is a common treatment modality in the management of head and neck malignancies. However, head and neck tumors often have some adverse reactions when receiving radiation therapy, such as dry mouth, change of taste, oral mucositis, etc. Among them, the incidence of oral mucositis is more than 90%, and the incidence of oral mucositis of degree 3 or more than degree 3 is more than 50%. Severe oral mucositis seriously affects the quality of survival of patients. Lactobacillus rhamnosus GG (LGG) is a type of lactic acid bacterium, which is an important component of the microbiota in many parts of the human body. Lactobacillus rhamnosus GG (LGG) is a lactic acid bacterium found in the human body, extensively researched for its probiotic properties. It has been tested in clinical trials for preventing and treating oral mucosal reactions during intensified radiotherapy for head and neck squamous cell carcinoma. LGG adheres well to epithelial layers, produces a protective biofilm, and modulates immune responses. It shows promise in reducing radiation-induced oral mucositis and can be safely used in infant formula. Additionally, a daily dosage of 3×10\^9 CFU of LGG has been effective in treating irritable bowel syndrome without adverse effects

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Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

160 people

The number who actually took part.

Started

Nov 2023

Finished

Mar 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 80 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients pathologically diagnosed with non-metastatic head and neck malignant tumors; 2. Aged 18-80 years; 3. Eastern Cooperative Oncology Group performance status of ≤2; 4. Planning to receive definitive RT or postoperative adjuvant RT; 5. Normal liver, kidney and bone marrow function; 6. Sign informed consent. Exclusion Criteria: 1. Known hypersensitivity or more severe allergies to Lactobacillus Reuteri components; 2. Those with poor compliance; 3. Pregnancy or breastfeeding; 4. History of head and neck radiotherapy; 5. Taking antifungal or viral medications one week prior to the start of radiation therapy. 6. Other patients (with any other serious other medical condition) who, in the opinion of the investigator, are not suitable for participation in this study.

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Conditions

The condition(s) this trial relates to.

stomatitis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Oral mucositis

Contacts and locations

Locations

  • West China Hospital, Sichuan University

    Chengdu, Sichuan, 610041, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.