Effectiveness of a Novel Low-level Laser Therapy Protocol in Managing Breast Cancer-Related Lymphedema
1 other identifier
interventional
46
1 country
1
Brief Summary
This study is a prospective, single-blinded, randomized controlled trial designed to evaluate the effectiveness of low-level laser therapy (LLLT) using two different wavelengths (904 nm and 650 nm) in patients with secondary lymphedema following breast cancer surgery. Participants will be randomly assigned to one of three groups: 904 nm LLLT, 650 nm LLLT, or sham treatment. The primary objective is to assess changes in arm volume and secondary lymphedema-related outcomes following a structured intervention program.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable breast-cancer
Started Nov 2023
Shorter than P25 for not_applicable breast-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 23, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 26, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2024
CompletedFirst Submitted
Initial submission to the registry
June 20, 2025
CompletedFirst Posted
Study publicly available on registry
July 18, 2025
CompletedJuly 18, 2025
July 1, 2025
1.1 years
June 20, 2025
July 9, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Change in subcutaneous tissue thickness of the affected upper limb
Subcutaneous tissue thickness will be measured using B-mode ultrasonography (7.5 MHz linear-array transducer, Siemens Medical Solutions). Measurements will be taken at five predefined anatomical sites of the affected upper limb: (1) midpoint of the wrist crease, (2) medial epicondyle, (3) lateral epicondyle, (4) 10 cm proximal and distal to the elbow joint along predefined lines on both medial and lateral sides, and (5) the web space between the first and second fingers. Thickness values will be used to assess local soft tissue changes in response to treatment.
Baseline and after 10 sessions (approximately 3 weeks)
Change in dermal backflow (DB) pattern on indocyanine green (ICG) lymphography
Indocyanine green (Diagnogreen, 2.5 mg/mL) will be injected intradermally into the first and third web spaces of the affected hand (0.1 mL per site). To minimize discomfort, lidocaine HCl 2% with epinephrine (1:100,000) will be administered prior to injection. Lymphatic flow will be visualized using near-infrared fluorescence imaging. Dermal backflow patterns will be classified from Type I to Type V according to established staging criteria, reflecting the severity and distribution of lymphatic stasis. The DB stage will be used as an indicator of lymphatic dysfunction and treatment response.
Baseline and after 10 sessions (approximately 3 weeks)
Secondary Outcomes (2)
Change in extracellular fluid (ECF) ratio
Baseline and after 10 sessions (approximately 3 weeks)
Change in upper limb volume
Baseline and after 10 sessions (approximately 3 weeks)
Study Arms (3)
904nm LLLT (LTU-904)
EXPERIMENTALParticipants will receive low-level laser therapy using the LTU-904 device at a wavelength of 904 nm after complex decongestive physiotherapy (CDPT), which includes manual lymphatic drainage, remedial exercises, and intermittent pneumatic compression.
650 nm LLLT (Salus Talent)
EXPERIMENTALParticipants will receive low-level laser therapy using the Salus Talent device at a wavelength of 650 nm after complex decongestive physiotherapy (CDPT), which includes manual lymphatic drainage, remedial exercises, and intermittent pneumatic compression.
Sham Laser Therapy
PLACEBO COMPARATORParticipants will receive sham laser therapy with no active laser emission after complex decongestive physiotherapy (CDPT), which includes manual lymphatic drainage, remedial exercises, and intermittent pneumatic compression.
Interventions
Low-level laser therapy using the LTU-904 device (RianCorp, Australia) at a wavelength of 904 nm, applied to the fibrotic area of the upper limb after CDPT.
Low-level laser therapy using the Salus Talent device (Remed, USA) at a wavelength of 650 nm, applied to the fibrotic area of the upper limb after CDPT.
Placebo laser therapy with no active laser emission, administered after CDPT.
Eligibility Criteria
You may qualify if:
- Secondary lymphedema following breast cancer surgery
You may not qualify if:
- Primary lymphedema
- History of trauma, metastasis, or infection in both arms
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Pusan National University Hospital
Busan, Seo-Gu, 49241, South Korea
Related Publications (28)
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PMID: 26305554BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jin A Yoon, MD, Ph.D
Pusan National University Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor, Department of Rehabilitation Medicine
Study Record Dates
First Submitted
June 20, 2025
First Posted
July 18, 2025
Study Start
November 23, 2023
Primary Completion
December 26, 2024
Study Completion
December 31, 2024
Last Updated
July 18, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will not share