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RecruitingNCT03983369MUCILAUpdated Feb 6, 2026

Low-level Laser Therapy in the Prevention of Chemotherapy-induced Mucositis in Children and Young Adults

A Phase 3 interventional study of Low-Level Laser Therapy and Placebo in Mucositis Oral, sponsored by Gustave Roussy, Cancer Campus, Grand Paris. Recruiting at 5 sites in France. Open to participants aged 4 Years to 25 Years. Per ClinicalTrials.gov, last updated 2026-02-06.

Sponsored by Gustave Roussy, Cancer Campus, Grand Paris · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Aug 2018, registered Jun 2019).
  • Started Aug 2018; still recruiting 8 years 2 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
315
Allocation
Randomized
Ages
4 Years to 25 Years
Sex
All
01

Study summary

To assess the efficacy of preventive Low-Level Laser Therapy (LLLT) for reducing the incidence of WHO's grade 3-4 oral mucositis in children and young adults receiving chemotherapy regimens associated with a high rate of mucositis: conventional chemotherapy or High Dose Chemotherapy (HDC) conditioning regimens with Hematological Stem Cell Transplantation (HSCT).

02

Conditions studied

  • Mucositis Oral

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03

In context

Stomatitis

306 studies on the registry are indexed under Stomatitis; 75 are open to participants now.

This study's planned enrollment of 315 is above the median of 60 across 276 interventional studies indexed under Stomatitis.

Browse Stomatitis studies →

Lead sponsor

Gustave Roussy, Cancer Campus, Grand Paris is the lead sponsor of 245 studies on the registry; 66 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years to 25 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age > 4 and ≤ 25 years
  2. No mucositis or other mouth lesions at the beginning of chemotherapy that could prevent the laser session and chemotherapy
  3. Cooperative patient, able to wear black glasses and to sit with his open mouth during laser session
  4. Patients treated in one of the SFCE centers that participate to the study
  5. Patients undergoing chemotherapy course with high risk of severe mucositis :

    1. high-dose chemotherapy with hematological stem cell transplantation (stratum A) including but not limited to 8 HDC conditioning regimens for solid tumors intensive treatment (Busilvex-Melphalan, VP16-Thiotepa, BAM, BEAM, Thiotepa 900mg/m\^2, Carboplatine-Thiotepa (typical teratoid rhabdoid tumor or medulloblastoma), VP16-Carboplatine-Thiotepa, Endoxan-Busilvex and VP16 - Melphalan) and 5 myeloablative conditioning regimens (for example : TBI-VP16, Busilvex-Endoxan-Thiotepa, Busilvex-Endoxan+/-Melphalan and Thiotepa-Busulfan-Fludarabine),
    2. Conventional chemotherapy courses (stratum B) but not limited to COPADM (B lymphoma), CAV/ICE (plexus choroid carcinoma or B lymphoma), Head start induction course (medulloblastoma), N6 course (neuroblastoma), VIDE or VCD (Ewing sarcoma), API/AP (osteosarcoma), Cyclophosphamide and Doxorubicine (nephroblastoma), PLADO/Carboplatine and Doxorubicine (hepatoblastoma), IVADo (rhabdomyosarcoma), induction and consolidation of the Myechild protocol (Cytarabine/Mithoxantrone Fludarabine Aractine +/- Darubicine) (acute myeloid leukemia) and 5FU-cisplatine (undifferentiated carcinoma of nasopharyngeal),
    3. Others courses of chemotherapy (stratum A or B) which may cause mucositis can be considered (please refer to the non-inclusion criterion n° 5 to see the prohibited chemotherapy list). In this case, the coordinating investigator approval is required.
  6. Women of must have a negative serum β-HCG pregnancy test prior to the administration of the first laser treatment.
  7. French speaking patients
  8. Patient and/or parents/legal representatives should understand, sign, and date the written form prior to any protocol specific procedures performed. Patient should be able and willing to comply with study visits and procedures as per protocol.
  9. Patients must be affiliated to a social security regimen or beneficiary of the same

NB : all patients who respect all the eligibility criteria are recruitable even if the patient haven't a cancer (Patients undergoing a chemotherapy with high risk of severe mucositis for another clinical reason than cancer).

Exclusion criteria

Exclusion Criteria:

  1. Treatment by opioids on daily basis
  2. Orthodontic appliance
  3. Pregnant or breastfeeding young ladies or women
  4. Patients with cognitive disorder who could not self-evaluate his pain or with a mucositis difficult to evaluate
  5. None of this chemotherapy is allowed : Methotrexate, VA or VAD (nephroblastoma), Carboplatine - Etoposide (3 or 5 days), Temozolomide single agent or in combination with Topotecan/Irinotecan or Bevacizumab, Gemzar, Taxotere, Ifosfamide - Etoposide (Ewing sarcoma), OEPA, COPDAC, IgEV (Hodgkin lymphoma)
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
315 participants (estimated)

Study arms

  • Experimental
    preventive treatment with LLLT ("Laser" group)

    Device: Low-Level Laser Therapy

  • Placebo comparator
    control group with a placebo intervention

    Other: Placebo

Interventions

  • DeviceLow-Level Laser Therapy

    The LLL used is the K-Laser Cube 3. The LLL is an athermal laser beam of low power, equipped with a placebo function (dummy imitating beam laser light, emitted by the same device but without physiological effect).

  • OtherPlacebo

    Placebo

06

What researchers measure

Primary outcomes

  1. Proportion of grade 3-4 mucositis

    Time frame: assessed at day 12 ± 2 days after initiation of chemotherapy

07

Study locations

5 of 5 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 6, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03983369
Responsible party
Sponsor
First posted
Jun 12, 2019
Start date
Aug 29, 2018
Primary completion
Aug 28, 2026 (estimated)
Completion
Sep 2026 (estimated)
Last update
Feb 6, 2026

Study contacts

Léa Guerrini-Rousseau, MD
Contact
lea.guerrini-rousseau@gustaveroussy.fr
+33 (0)1 42 11 67 41
Jérémy MIONE, MS
Contact
jeremy.mione@gustaveroussy.fr
+33 (0)1 42 11 42 11 ext. 38 61

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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