Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Photobiomodulation for chronic head and neck lymphedema

Official title: Placebo-Controlled Phase II Randomized Clinical Trial of Photobiomodulation Therapy in Head and Neck Cancer Survivors With Chronic Lymphedema

Run by Abramson Cancer Center at Penn Medicine · NCT06837480 · Data updated 2026-11-12

This will test whether photobiomodulation (low-level laser) can reduce chronic lymphedema in people who were treated for head and neck cancer.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment150 (estimated)
SponsorAbramson Cancer Center at Penn Medicine
Academic / other
Locations2 sites (Philadelphia, Pennsylvania and 1 other locations)
StatusRecruiting
StartedJanuary 15, 2026
Main results expectedAugust 30, 2029
Study endsNovember 30, 2029
Registry record updatedJune 23, 2026
Trial IDNCT06837480 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults (≥18) with biopsy-confirmed head and neck cancer who are cancer-free 12–60 months after treatment, have chronic external lymphedema for at least 6 months involving two or more sites with at least one site of moderate severity, and who have not responded to prior lymphedema therapy.

Probably not a fit

Patients with active cancer, pregnancy or other medical conditions that make photobiomodulation unsafe, those who currently respond well to standard lymphedema care, or those unable to travel to study sites are unlikely to benefit from participation.

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

What this trial studies

Adults who are cancer-free 12–60 months after treatment for biopsy-confirmed head and neck cancer and who have chronic external lymphedema will receive either an active LTU-904 portable laser device or a sham inactive device. The trial builds on prior pilot work and uses HN-LEF criteria to document at least two sites of external lymphedema with one site of moderate severity. Outcomes will track changes in lymphedema severity, functional measures, and patient-reported symptoms over the treatment period. The intervention targets patients who have not responded to prior lymphedema therapy and requires in-person visits at participating centers.

Why it matters

Potential benefit: If successful, this noninvasive laser therapy could reduce swelling, improve neck and facial function, and enhance quality of life for survivors with chronic lymphedema.

How similar studies have gone: Previous pilot trials in head and neck cancer survivors demonstrated feasibility, acceptability, and preliminary efficacy, and photobiomodulation is already FDA-approved for breast cancer–related arm lymphedema.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

\>18 years of age Biopsy proven head and neck cancer No evidence of cancer at the time of study enrollment, between 12- and 60-month post-cancer treatment Chronic lymphedema (defined as lymphedema persisting for a minimum of 6 months) A minimum of 2 sites of external lymphedema At least 1 site with lymphedema of moderate severity as assessed using the HN-LEF Assessment Criteria Failed lymphedema therapy (defined as any of the following: incomplete response to therapy, progression of lymphedema after therapy, inability to perform effective self-care resulting in fluid re-accumulation; and inability to complete treatment due to systems barriers). In addition, patients must be able to understand English in order to complete questionnaires; and to provide informed consent.

Exclusion Criteria:

Patients will be excluded if they have any of the following medical conditions that would prohibit the safe implementation of PBMT:

Women of childbearing age and potential Acute cellulitis within the soft tissues in the head and neck region Chronic inflammatory diseases Venous thrombosis Carotid artery stenosis Requiring ongoing use of diuretics and corticosteroids Pre-existing skin rash, ulceration, open wound in the treatment area Active lymphedema or physical therapy (including hyperbaric oxygen or trental) Allergic and other systemic skin diseases

Where it's running

  • University of Pennsylvania Abramson Cancer Center
    Philadelphia, Pennsylvania, United States
    Recruiting
  • Vanderbilt University Medical Center
    Nashville, Tennessee, United States
    Recruiting

Study contacts

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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.