Low Level Laser Light Therapy and Chronic Neck and Shoulder Pain
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ClinicalTrials.gov Identifier: NCT00929305 |
Recruitment Status :
Completed
First Posted : June 29, 2009
Results First Posted : April 22, 2013
Last Update Posted : April 21, 2014
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Condition or disease | Intervention/treatment | Phase |
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Shoulder Pain Neck Pain Musculoskeletal Pain Musculoskeletal Strain Musculoskeletal Sprain | Device: Erchonia PL2000 Device: Placebo laser | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 100 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Study of the Effect of Low Level Laser Therapy on the Reduction of Chronic Pain Associated With Neck and Shoulder Pain of Musculoskeletal Origin. |
Study Start Date : | January 2001 |
Actual Primary Completion Date : | June 2001 |
Actual Study Completion Date : | June 2001 |

Arm | Intervention/treatment |
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Placebo Comparator: Placebo laser
inactive laser light
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Device: Placebo laser
Inactive laser light |
Active Comparator: Erchonia PL2000
The Erchonia PL2000 Laser emits 1 milliWatt (mW) of red (635nm wavelength) light via an electric diode energy source. It is a hand-held device that uses rechargeable batteries or a separate power adapter.
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Device: Erchonia PL2000
The Erchonia PL2000 Laser emits 1 mW of red (635nm wavelength) light via an electric diode energy source. It is a hand-held device that uses rechargeable batteries or a separate power adapter.
Other Names:
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- The Number of Participants Whose Self-reported Pain Rating in the Neck and Shoulder Area on the 0-100 Visual Analog Scale (VAS) Decreased by 30% or More From Baseline to One Day After Study Treatment [ Time Frame: baseline and one day ]Participants self-rated the degree of pain experienced in the neck-shoulder region on the 0-100 standardized Visual Analog Scale (VAS) at baseline and one day post-treatment. The VAS is a 100mm long horizontal scale ranging from '0: no pain at all' on one end to '100: worst pain imaginable' on the other end. The participant marked the point along the scale that best showed the pain level they experienced in the neck-shoulder area at each point in time. The higher the number marked, the greater the pain level.
- Change in Self-reported Pain Rating in the Neck and Shoulder Area on the 0-100 Visual Analog Scale (VAS)From Baseline to One Day Post-treatment [ Time Frame: baseline and one day ]Participants self-rated the degree of pain experienced in the neck-shoulder region on the 0-100 standardized Visual Analog Scale (VAS) at baseline and one day post-treatment. The VAS is a 100mm long horizontal scale ranging from '0: no pain at all' on one end to '100: worst pain imaginable' on the other end. The participant marked the point along the scale that best showed the pain level they experienced in the neck-shoulder area at that point in time. The higher the number marked, the greater the pain level.
- Range of Motion of the Neck and Shoulders [ Time Frame: one day ]
- Muscle Trigger Points of the Cervical Spine [ Time Frame: one day ]

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Location of pain is on the right and/or left side of the neck and/or shoulder and/or the back of the neck.
- Etiology of pain is osteoarthritis/Degenerative Joint Disorder (DJD); chronic muscle spasms or cervical and thoracic spine sprain strain, determined according to subject medical history, medication use history, previous records review, physical examination of the cervical spine and shoulder.
- Stage of injury is chronic, having prevailed for longer than 30 days.
- Degree of Pain self-rating of 50 or greater on the 0-100 Visual Analog Scale (VAS).
- 18-65 years.
Exclusion Criteria:
- Stage of injury is acute, having prevailed for less than 30 days.
- Known herniated disc injury.
- Any other disease or condition that may cause or contribute to the chronic pain condition.
- Presence of infection or open wound at the treatment areas.
- Use of steroids or narcotics.
- Use of over-the-counter (OTC) medication for the relief of pain within the 24-hour period prior to participating in the treatment phase of the study, or prescription medication for the relief of pain within the 48-hour period prior to participating in the treatment phase of the study.
- pregnant or lactating.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00929305
Principal Investigator: | Gregory C Roche, DO | ||
Principal Investigator: | Douglas D Dedo, MD | ||
Principal Investigator: | Edward B Lack, MD |
Responsible Party: | Erchonia Corporation |
ClinicalTrials.gov Identifier: | NCT00929305 |
Other Study ID Numbers: |
ECP-002 |
First Posted: | June 29, 2009 Key Record Dates |
Results First Posted: | April 22, 2013 |
Last Update Posted: | April 21, 2014 |
Last Verified: | April 2014 |
chronic pain neck shoulder musculoskeletal origin |
Shoulder Pain Musculoskeletal Pain Neck Pain Pain Neurologic Manifestations |
Arthralgia Joint Diseases Musculoskeletal Diseases Muscular Diseases |