Working…
COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC: https://www.coronavirus.gov.

Get the latest research information from NIH: https://www.nih.gov/coronavirus.
ClinicalTrials.gov
ClinicalTrials.gov Menu

Study of Erchonia Low Level Laser Light Therapy to Treat Toenail Fungus

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02242019
Recruitment Status : Completed
First Posted : September 16, 2014
Results First Posted : August 10, 2015
Last Update Posted : May 17, 2016
Sponsor:
Information provided by (Responsible Party):
Erchonia Corporation

Brief Summary:
The purpose of this study is to determine whether low level laser light therapy is effective in the treatment of toenail onychomycosis.

Condition or disease Intervention/treatment Phase
Onychomycosis Device: Erchonia LUNULA Not Applicable

Detailed Description:

An infection of toenail fungus, or onychomycosis, typically occurs when fungi (most commonly dermatophytes) infect the nail, but may also be caused by yeasts and molds. The nail fungal infection usually begins as a white or yellow spot under the tip of the toenail and then spreads deeper into the nail causing discoloration, thickening and the development of crumbling edges to the nail which can be unsightly and painful and may produce serious physical and occupational limitations. Onychomycosis can also have a detrimental effect on an individual's quality of life, affecting their psychosocial and emotional wellbeing.

Onychomycosis can be difficult to treat, and infections recur easily. Toenail fungus affects approximately 23 million adults (about 10%) in the United States. It is more common among older adults and tends to affect men more than women. Potential complications of onychomycosis include pain, permanent damage to the nails and serious infections that can spread beyond the feet.

Currently available treatments for onychomycosis include oral antifungal medications (Lamisil, Sporanox); antifungal nail polish (Penlac); topical over-the-counter antifungal creams; photodynamic therapy and in more severe cases, surgery to remove the nail. However, there is no perfect cure for toenail fungus. Even the most effective oral medications are only successful about half of the time, and topical medications are successful less than 10% of the time. In addition, clearance of the infection and growth of new clear nail can be slow, and the rate of recurrence of infection is high. Antifungal drugs may also cause side effects ranging from skin rashes to liver damage.

Therefore, the need for a more effective and lasting cure is evident. Recently, research has found laser therapy to show promise as a novel alternative treatment for toenail onychomycosis. Unlike medication-driven treatments, laser therapy presents minimal risk of side effects. Laser therapy is applied to toenail onychomycosis by shining a laser light through the toenail. The laser light vaporizes the fungus while leaving the skin and surrounding tissue unharmed.

Low level laser light therapy operates under the principle of photochemistry with a photoacceptor molecule absorbing the emitted photons and inducing a biological cascade. Like our eukaryotic cell, fungi contain the highly complex organelle the mitochondria, which is responsible for the manufacturing of the energy molecule Adenosine triphosphate (ATP). Within the inner mitochondrial membrane is cytochrome c oxidase, an identified photoacceptor molecule. It is believed that laser therapy could perhaps provide a means to photo-destroy the fungi responsible for onychomycosis by inducing the release of highly reactive superoxides. Moreover, laser therapy has been shown to promote superoxide dismutase (SOD), a process responsible for the destruction of foreign invaders. Extracellular release of low levels of mediators associated with SOD can increase the expression of chemokines, cytokines, and endothelial leukocyte adhesion molecules, amplifying the cascade that elicits the inflammatory response. The physiologic function of hydrogen peroxide, superoxide anion, and hydroxyl free radical is to destroy phagocytosed microbes. By enhancing the natural processes of the immune system and impacting the structural integrity of the fungi strain, it is believed that laser therapy may provide a means for clinicians to effectively treat onychomycosis without the onset of any adverse events.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 109 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Evaluation of the Effect of the Erchonia LUNULA on Treating Toenail Onychomycosis
Study Start Date : February 2013
Actual Primary Completion Date : February 2014
Actual Study Completion Date : February 2014

Arm Intervention/treatment
Experimental: Erchonia LUNULA
The Erchonia LUNULA emits both red light (635 nm) and blue light (405 nm) to the affected toenail for 12 minutes per treatment for 4 treatments, each treatment one week apart.
Device: Erchonia LUNULA
The Erchonia LUNULA is administered to the infected toes for 12 minutes per treatment for 4 treatments, each treatment one week apart.




Primary Outcome Measures :
  1. Number of Toenails Attaining 3 Millimeters (mm) or More of Clear Nail Growth [ Time Frame: Baseline and 36 Weeks ]
    Individual toenail success criteria was defined as 3 millimeter (mm) or more of clear nail growth at 36 weeks post-procedure administration as evaluated relative to baseline. Overall study success criteria was defined as an 60% or more of treated toenails meeting the individual success criteria.

  2. Change in Millimeters (mm) of Clear Nail Bed [ Time Frame: Baseline and 36 Weeks ]
    Millimeter (mm) of clear nail from the base of the toenail was determined from digital photographs of the toenail using a computer program. Change in mm of clear nail bed was calculated as the difference in mm of clear nail bed from baseline measurement to the measurement at 36 weeks after the end of the procedure administration phase. An increase in mm of clear nail between the two measurement points indicates that the toenail has improved and is positive for study success. A decrease in mm of clear nail between the two measurement points indicates that the toenail has worsened and is negative for study success.


Secondary Outcome Measures :
  1. Change in Percent (%) of Onychomycosis Disease Involvement [ Time Frame: Baseline and 36 Weeks ]
    The percent (%) of the toenail that had onychomycosis disease involvement was determined. Change in the % of toenail onychomycosis disease involvement was calculated as the difference in the % of toenail onychomycosis disease involvement from baseline measurement to the measurement at 36 weeks after the end of the procedure administration phase. A decrease in the % of toenail onychomycosis disease involvement between the two measurement points indicates that the toenail onychomycosis involvement has decreased and is positive for study success. An increase in the % of toenail onychomycosis disease involvement between the two measurement points indicates that the toenail onychomycosis involvement has increased and is negative for study success.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Onychomycosis present in at least one great toenail, identified as current bacterial/fungal infection classified by the investigator as onychomycosis, with the nail presenting positive on visual inspection for somewhat thickened nail plate with a cloudy appearance and some discoloration (white to yellow to brown).
  • Subject is willing and able to refrain from employing other (non-study) treatments (traditional or alternative) for his or her toenail onychomycosis throughout study participation.
  • Subject is willing and able to refrain from the use of nail cosmetics such as clear and/or colored nail lacquers throughout study participation.

Exclusion Criteria:

  • Spikes of disease extending to nail matrix in the affected great toenail(s).
  • Infection involving lunula of the affected toenail(s), e.g., genetic nail disorders, primentary disorders.
  • Affected great toenail(s) has less than 2mm clear (unaffected) nail plate length beyond the proximal fold.
  • Presence of dermatophytoma (defined as thick masses of fungal hyphae and necrotic keratin between the nail plate and nail bed) on the affected great toenail(s).
  • Chronic plantar (moccasin) tinea pedis.
  • History of current or past psoriasis of the skin and/or nails.
  • Concurrent lichen planus.
  • Onychogryphosis.
  • Any of the following conditions of the affected great toenail(s) is present: proximal subungual onychomycosis; white superficial onychomycosis; dermatophytoma or "yellow spike/streak"; exclusively lateral disease
  • Confounding problems/abnormalities of the great toenail(s).
  • Any abnormality of the affected great toenail(s) that could prevent a normal appearing nail if clearing of infection is achieved.
  • Inability for the affected great toenail(s) to become normal in the opinion of the investigator.
  • History of multiple repeated failures with previous therapies for onychomycosis.
  • Trauma to the affected great toenail(s).
  • Use of oral antifungal agents in the past 6 months.
  • Use of topical antifungal agents in the past 1 month.
  • Prior surgical treatment of the affected great toe(s).
  • Subject is unwilling or unable to refrain from employing other (non-study) treatments (traditional and alternative) for his or her toenail onychomycosis throughout study participation.
  • Subject is unwilling or unable to refrain from the use of nail cosmetics such as clear and/or colored nail lacquers until the end of study participation.
  • Cancer and/or treatment of any type of cancer within the last six months.
  • Peripheral vascular disease or peripheral circulatory impairment.
  • History of uncontrolled diabetes mellitus.
  • Known immunodeficiency.
  • Known sensitivity, or contraindication, to light therapy.
  • Pregnant, breast feeding, or planning pregnancy prior to the end of study participation.
  • Serious mental health illness such as dementia or schizophrenia; psychiatric hospitalization in the past two years.
  • Developmental disability or cognitive impairment that would preclude adequate comprehension of the informed consent form and/or ability to follow study subject requirements and/or record the necessary study measurements.
  • Involvement in litigation and/or receiving disability benefits related in any way to the parameters of the study.
  • Participation in a clinical study or other type of research in the past 30 days.

Information from the National Library of Medicine

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): NCT02242019


Locations
Layout table for location information
Ireland
Midleton Foot Clinical
Midleton, Co. Cork, Ireland
Sponsors and Collaborators
Erchonia Corporation
Investigators
Layout table for investigator information
Principal Investigator: Robert Sullivan, Podiatry
Layout table for additonal information
Responsible Party: Erchonia Corporation
ClinicalTrials.gov Identifier: NCT02242019    
Other Study ID Numbers: EC_TFRS_004
First Posted: September 16, 2014    Key Record Dates
Results First Posted: August 10, 2015
Last Update Posted: May 17, 2016
Last Verified: April 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Onychomycosis
Tinea
Dermatomycoses
Skin Diseases, Infectious
Infection
Mycoses
Nail Diseases
Skin Diseases