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Low-Level Laser in Head and Neck Chronic Lymphedema

Low-level Laser in Treatment of Head and Neck Chronic Lymphedema: A Pilot Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04482855
Enrollment
25
Registered
2020-07-23
Start date
2021-08-19
Completion date
2023-06-30
Last updated
2024-11-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Head and Neck Cancer, Lymphedema, Fibrosis

Brief summary

The purpose of this study is to evaluate the effect of low-level laser treatment (LLLT) on the severity of lymphedema, symptom burden, functional status, and quality of life in HNC survivors.

Detailed description

Primary aim: To determine the impact of LLLT, as compared to wait-list control, on changes in severity of lymphedema. Secondary aim: To determine the impact of LLLT, as compared to a wait-list control, on lymphedema-related symptom burden (e.g., tightness), functional impairments (e.g., range of motion in jaw and neck), and quality of life.

Interventions

Low-level laser therapy

Sponsors

Abramson Cancer Center at Penn Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Intervention model description

Randomized, wait-list control

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* \>18 years of age * \>6 months post HNC treatment * No evidence of cancer confirmed with imaging tests * Having head and neck lymphedema with or without fibrosis * Completion of initial lymphedema therapy * Lymphedema duration between 3-24 months * Ability to speak and read English * Ability 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 LLLT: * Pregnancy * Acute infection * Photosensitivity * Chronic inflammatory diseases * Venous thrombosis * Carotid artery stenosis * History of severe trauma * Medication that affects body fluid and electrolyte balance * Use of high doses of non-steroidal anti-inflammatory drugs * Pre-existing skin rash, ulceration, open wound in the treatment area * Active lymphedema therapy or physical therapy * Allergic and other systemic skin diseases

Design outcomes

Primary

MeasureTime frameDescription
Total Severity of External Lymphedema and Fibrosis (LEF)Baseline, 8-week post-intervention visitHead and Neck Lymphedema and Fibrosis Assessment Criteria Change in total severity of external LEF from baseline to 8-week post-intervention visits. A larger change in this score means more reduction in the severity of external LEF. External LEF is measured by HN-LEF Assessment Criteria. The total external LEF severity score is calculated by summing the severity score of each site (total 9 sites, severity score ranging from 0-27). For each site, the severity of LEF includes no LEF (=0), mild (=1), moderate (=2), and severe (=3).

Secondary

MeasureTime frameDescription
Symptom Burden Score: Soft Tissues and Neurologic Toxicity SubscaleBaseline, 8-week post-intervention visitHead and Neck Lymphedema and Fibrosis Symptom Inventory Change in symptom burden score from baseline to 8-week post-intervention. A larger change in this score means decreased symptom burden. Symptom burden is assessed by Head and Neck Lymphedema and Fibrosis Symptom Inventory (HN-LEF SI). Higher scores (score ranging from 0-5) indicate increased symptom burden. There are 7 subscales and only one subscale (Soft Tissues and Neurologic Toxicity) score is reported here.
Neck Range of Motion Degree: Right Lateral RotationBaseline, 8-week post-intervention visitChange in neck range of motion degree from baseline to 8-week post-intervention. A larger change in this degree means better outcome with increased neck range of motion. Cervical Range of Motion Device, a valid and reliable tool, was used to measure the amount of neck movement (degrees) for the following neck movements: forward flexion, extension, right and left lateral flexion, and right and left rotation. Only right lateral rotation is reported here.
Quality of Life Score: Feeding TubeBaseline, 8-week post-intervention visitEORTC QLQ-H&N35 was used to assess HNC-related quality of life. Change in EORTC QLQ-H&N35 score from baseline to 8-week post-intervention. A larger reduction in this score means decreased symptom burden and better quality of life. The HNC-specific EORTC QLQ-H&N35 module is a supplement, containing seven multi-item scales (pain, swallowing, senses problems, speech problems, trouble with social eating and social contact, and less sexuality) and eleven single-item scales (teeth, opening mouth, dry mouth, sticky saliva, coughing, felt ill, pain killers, nutritional supplements, feeding tube, weight loss, weight gain). The QLQ-H&N35 scale employs a 4-point response format (''not at all to ''very much). Scale scores are transformed to a scale from 0 to 100 according to the EORTC scoring algorithm. For the symptoms scales, a higher score indicates a higher level of symptom burden. Only feeding tube scale is reported here.

Countries

United States

Participant flow

Participants by arm

ArmCount
Group 1 (Laser Group)
Group 1 (laser group): After completion of the baseline measurements, Group 1 participants will be scheduled for LLLT. After completion of LLLT, participants will be scheduled for the 4-week and 8-week follow up data collection. Low-level laser: Low-level laser therapy
12
Group 2 (Wait-list Control Group)
Group 2 (wait-list control group): Group 2 participants will not undergo LLLT therapy but will complete all the same study assessments as the laser therapy group, including the baseline, and follow-up assessments. After the 8-week follow-up assessment, participants will be offered the same LLLT as the laser group.
13
Total25

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyWithdrew from the study before attending the study intervention sessions due to new cancer diagnosis10
Overall StudyWithdrew from the study before attending the study intervention sessions due to unexpected job duty10

Baseline characteristics

CharacteristicGroup 1 (Laser Group)TotalGroup 2 (Wait-list Control Group)
Age, Continuous59.5 years
STANDARD_DEVIATION 5.06
61.0 years
STANDARD_DEVIATION 5.65
62.3 years
STANDARD_DEVIATION 6.01
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
12 Participants24 Participants12 Participants
Region of Enrollment
United States
12 participants25 participants13 participants
Sex: Female, Male
Female
2 Participants3 Participants1 Participants
Sex: Female, Male
Male
10 Participants22 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 120 / 13
other
Total, other adverse events
0 / 120 / 13
serious
Total, serious adverse events
0 / 120 / 13

Outcome results

Primary

Total Severity of External Lymphedema and Fibrosis (LEF)

Head and Neck Lymphedema and Fibrosis Assessment Criteria Change in total severity of external LEF from baseline to 8-week post-intervention visits. A larger change in this score means more reduction in the severity of external LEF. External LEF is measured by HN-LEF Assessment Criteria. The total external LEF severity score is calculated by summing the severity score of each site (total 9 sites, severity score ranging from 0-27). For each site, the severity of LEF includes no LEF (=0), mild (=1), moderate (=2), and severe (=3).

Time frame: Baseline, 8-week post-intervention visit

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 (Laser Group)Total Severity of External Lymphedema and Fibrosis (LEF)Total severity score of LEF at baseline visit5.42 score on a scaleStandard Deviation 2.07
Group 1 (Laser Group)Total Severity of External Lymphedema and Fibrosis (LEF)Total severity score of LEF at 8-week post-intervention visit3.22 score on a scaleStandard Deviation 1.86
Group 2 (Wait-list Control Group)Total Severity of External Lymphedema and Fibrosis (LEF)Total severity score of LEF at baseline visit4.08 score on a scaleStandard Deviation 2.33
Group 2 (Wait-list Control Group)Total Severity of External Lymphedema and Fibrosis (LEF)Total severity score of LEF at 8-week post-intervention visit4.62 score on a scaleStandard Deviation 1.71
Secondary

Neck Range of Motion Degree: Right Lateral Rotation

Change in neck range of motion degree from baseline to 8-week post-intervention. A larger change in this degree means better outcome with increased neck range of motion. Cervical Range of Motion Device, a valid and reliable tool, was used to measure the amount of neck movement (degrees) for the following neck movements: forward flexion, extension, right and left lateral flexion, and right and left rotation. Only right lateral rotation is reported here.

Time frame: Baseline, 8-week post-intervention visit

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 (Laser Group)Neck Range of Motion Degree: Right Lateral RotationRight lateral rotation at baseline visit45.38 degrees of neck movementsStandard Deviation 13.54
Group 1 (Laser Group)Neck Range of Motion Degree: Right Lateral RotationRight lateral rotation at 8-week post-intervention visit52.78 degrees of neck movementsStandard Deviation 11.18
Group 2 (Wait-list Control Group)Neck Range of Motion Degree: Right Lateral RotationRight lateral rotation at baseline visit48.04 degrees of neck movementsStandard Deviation 6.98
Group 2 (Wait-list Control Group)Neck Range of Motion Degree: Right Lateral RotationRight lateral rotation at 8-week post-intervention visit47.85 degrees of neck movementsStandard Deviation 10.92
Secondary

Quality of Life Score: Feeding Tube

EORTC QLQ-H&N35 was used to assess HNC-related quality of life. Change in EORTC QLQ-H&N35 score from baseline to 8-week post-intervention. A larger reduction in this score means decreased symptom burden and better quality of life. The HNC-specific EORTC QLQ-H&N35 module is a supplement, containing seven multi-item scales (pain, swallowing, senses problems, speech problems, trouble with social eating and social contact, and less sexuality) and eleven single-item scales (teeth, opening mouth, dry mouth, sticky saliva, coughing, felt ill, pain killers, nutritional supplements, feeding tube, weight loss, weight gain). The QLQ-H&N35 scale employs a 4-point response format (''not at all to ''very much). Scale scores are transformed to a scale from 0 to 100 according to the EORTC scoring algorithm. For the symptoms scales, a higher score indicates a higher level of symptom burden. Only feeding tube scale is reported here.

Time frame: Baseline, 8-week post-intervention visit

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 (Laser Group)Quality of Life Score: Feeding TubeQuality of life -feeding tube scale score at baseline visit16.67 score on a scaleStandard Deviation 38.92
Group 1 (Laser Group)Quality of Life Score: Feeding TubeQuality of life -feeding tube scale score at 8-week post-intervention visit0 score on a scaleStandard Deviation 0
Group 2 (Wait-list Control Group)Quality of Life Score: Feeding TubeQuality of life -feeding tube scale score at baseline visit15.38 score on a scaleStandard Deviation 37.55
Group 2 (Wait-list Control Group)Quality of Life Score: Feeding TubeQuality of life -feeding tube scale score at 8-week post-intervention visit7.69 score on a scaleStandard Deviation 27.74
Secondary

Symptom Burden Score: Soft Tissues and Neurologic Toxicity Subscale

Head and Neck Lymphedema and Fibrosis Symptom Inventory Change in symptom burden score from baseline to 8-week post-intervention. A larger change in this score means decreased symptom burden. Symptom burden is assessed by Head and Neck Lymphedema and Fibrosis Symptom Inventory (HN-LEF SI). Higher scores (score ranging from 0-5) indicate increased symptom burden. There are 7 subscales and only one subscale (Soft Tissues and Neurologic Toxicity) score is reported here.

Time frame: Baseline, 8-week post-intervention visit

ArmMeasureGroupValue (MEAN)Dispersion
Group 1 (Laser Group)Symptom Burden Score: Soft Tissues and Neurologic Toxicity SubscaleSoft Tissues and Neurologic Toxicity at baseline2.46 score on a scaleStandard Deviation 0.97
Group 1 (Laser Group)Symptom Burden Score: Soft Tissues and Neurologic Toxicity SubscaleSoft Tissues and Neurologic Toxicity at 8-week post-intervention visit1.73 score on a scaleStandard Deviation 1.32
Group 2 (Wait-list Control Group)Symptom Burden Score: Soft Tissues and Neurologic Toxicity SubscaleSoft Tissues and Neurologic Toxicity at baseline1.63 score on a scaleStandard Deviation 1.03
Group 2 (Wait-list Control Group)Symptom Burden Score: Soft Tissues and Neurologic Toxicity SubscaleSoft Tissues and Neurologic Toxicity at 8-week post-intervention visit1.23 score on a scaleStandard Deviation 0.92

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026