Photobiomodulation for chronic head and neck lymphedema

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

Not applicable Interventional Abramson Cancer Center at Penn Medicine · NCT06837480

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

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment150 (estimated)
Ages18 Years and up
SexAll
SponsorAbramson Cancer Center at Penn Medicine Academic / other
Locations2 sites (Philadelphia, Pennsylvania and 1 other locations)
Trial IDNCT06837480 on ClinicalTrials.gov

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.

Who should consider this trial

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.

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.

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 performed: 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.

Eligibility criteria

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 this trial is running

Philadelphia, Pennsylvania and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Head and Neck CancerLymphedema of the Head and NeckHead and neck cancer, chronic lymphedema, photobiomodulation
Last reviewed 2026-06-15 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.