Clinical trial Recruiting at 9 sites Phase 2 Interventional Ages 4 and up

Using light therapy to treat oral Graft-Versus-Host Disease after stem cell transplant

Official title: A Multi-Center, Phase II, Randomized Double-Blind Trial to Evaluate the Efficacy and Safety of Photobiomodulation for the Treatment of Oral Chronic Graft-Versus-Host Disease After Allogeneic Stem Cell Transplantation (the LIGHT Trial)

Run by Memorial Sloan Kettering Cancer Center · NCT05675930 · Data updated 2026-11-12

This study tests if a special light therapy can help people with oral Graft-Versus-Host Disease after a stem cell transplant feel better when other treatments haven't worked.

More Graft Versus Host Disease trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages4 Years and up
SexAll
Enrollment44 (estimated)
SponsorMemorial Sloan Kettering Cancer Center
Academic / other
Locations9 sites (Bethesda, Maryland and 8 other locations)
StatusRecruiting
StartedDecember 22, 2022
Main results expectedDecember 22, 2026
Study endsDecember 22, 2026
Registry record updatedNovember 2, 2026
Trial IDNCT05675930 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 4 years and older who have oral cGVHD with a specific severity score and have failed previous treatments.

Probably not a fit

Patients with active uncontrolled infections or those with a history of mucosal head and neck cancer in the past five years may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the safety and effectiveness of photobiomodulation (PBM) therapy for patients suffering from oral Graft-Versus-Host Disease (GVHD) following stem cell transplantation. Participants will receive either the PBM therapy using the Thor LX2.3 system or a placebo sham device. Eligible patients are those who have experienced oral cGVHD and have not responded to at least one prior treatment. The study aims to provide a new therapeutic option for this challenging condition.

Why it matters

Potential benefit: If successful, this therapy could offer a non-invasive treatment option for patients with oral GVHD, potentially improving their quality of life.

How similar studies have gone: While this approach is relatively novel, similar studies using light therapy for other conditions have shown promising results.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Allo-HCT recipients
* Age ≥ 4 years-old
* Oral cGvHD with NIH-modified OMRS score ≥ 3 who have failed ≥ 1 line of therapy, including topical corticosteroids..
* No change in systemic immunosuppressive therapy (type or intensity level) within 2 weeks prior to enrollment.
* If a patient is currently using another oral topical treatment for mouth lesions/symptoms, patient must be stable on this treatment for ≥2 weeks prior to study enrollment. Patient may continue same topical dose/frequency during the study period.

Exclusion Criteria:

* Presence of an active uncontrolled infection. Subjects with a controlled infection receiving definitive therapy for 48 hours prior to enrollment are eligible.
* Personal history of mucosal head and neck cancer in the past 5 years.
* Pregnant or breastfeeding.
* The subject or guardian is unable to give informed consent or unable to comply with the treatment protocol including appropriate supportive care, follow-up, and research tests.
* Any serious medical or psychiatric illness that could, in the Investigator's opinion, potentially interfere with the completion of treatment according to this protocol.

Where it's running

  • National Institute of Health (Data Collection AND Specimen Analysis)
    Bethesda, Maryland, United States
    Recruiting
  • Memorial Sloan Kettering at Basking Ridge (Consent only)
    Basking Ridge, New Jersey, United States
    Recruiting
  • Memorial Sloan Kettering Monmouth (Consent only)
    Middletown, New Jersey, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center @ Bergen (Consent only)
    Montvale, New Jersey, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center @ Commack (Consent only)
    Commack, New York, United States
    Recruiting
  • Memorial Sloan Kettering Westchester (Consent only)
    Harrison, New York, United States
    Recruiting
Show 3 more locations
  • Memorial Sloan Kettering Cancer Center (All Protocol Activities)
    New York, New York, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center @ Nassau (Consent only)
    Uniondale, New York, United States
    Recruiting
  • University of Pittsburgh Medical Center (Data Collection Only)
    Pittsburgh, Pennsylvania, United States
    Recruiting

Study contacts

  • Principal investigator: Alina Markova, MD — Memorial Sloan Kettering Cancer Center
  • Study coordinator: Alina Markova, MD
  • Email: markovaa@mskcc.org
  • Phone: 6466082342

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.