CClinicalTrials.gg
CompletedNCT01534689Updated Dec 11, 2015Results posted

Study of the Use of Low Level Laser Light Therapy to Treat Toenail Fungus

An interventional study of Erchonia FX-405™ Laser in Onychomycosis, sponsored by Erchonia Corporation. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-12-11.

Sponsored by Erchonia Corporation · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
105
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to determine whether low level laser light is effective in the treatment of toenail fungus.

Read the detailed description

An infection of toenail fungus, or onychomycosis, occurs when fungi infect one or more nails. As the nail fungus spreads deeper into the nail, it may cause nail discoloration, thickening and the development of crumbling edges, all of which can lead to an unsightly and potentially painful problem. Onychomycosis is difficult to treat, and infections recur easily. Toenail fungus affects approximately 23 million people in the US - about 10% of all adults. Currently available treatments for toenail fungus are lacking. Even the most effective oral medications are successful only about half of the time. Topical medications are successful less than 10% of the time. Recently, research has found laser therapy to show promise as a novel alternative treatment for toenail onychomycosis. Unlike medication-driven treatments for toenail fungus which can have many side effects including serious ones such as liver toxicity, 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.

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Conditions studied

  • Onychomycosis

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03

In context

Onychomycosis

147 studies on the registry are indexed under Onychomycosis; 13 are open to participants now.

This study's enrollment of 105 is above the median of 56 across 134 interventional studies indexed under Onychomycosis.

Browse Onychomycosis studies →

Lead sponsor

Erchonia Corporation is the lead sponsor of 48 studies on the registry; 2 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 14 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Onychomycosis present in at least one great toenail.
  • Disease involvement is at least 25%.
  • 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

Exclusion Criteria:

  • Spikes of disease extending to nail matrix.
  • Infection involving lunula, e.g., genetic nail disorders, primentary disorders.
  • Less than 2mm clear (unaffected) nail plate length beyond the proximal fold.
  • Presence of dermatophytoma (thick masses of fungal hyphae and necrotic keratin between the nail plate and nail bed).
  • 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 great toenail:
  • proximal subungual onychomycosis
  • white superficial onychomycosis
  • dermatophytoma or "yellow spike/streak"
  • exclusively lateral disease
  • confounding problems/abnormalities of the great toenail(s).
  • Any abnormality that could prevent a normal appearing nail if clearing of infection is achieved.
  • Inability for the toenail 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).
  • 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.
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
105 participants (actual)

Study arms

  • Experimental
    Erchonia FX-405™ Laser

    The Erchonia FX-405™ Laser is a dual-diode laser emitting 15.5-17.5 milliWatts (mW) of 635 nanometer (nm) red laser light and 23.5-25.5 mW 405 nm blue laser light. The the power reaching the surface of the skin is 1 mW

    Device: Erchonia FX-405™ Laser

Interventions

  • DeviceErchonia FX-405™ Laser

    The Erchonia FX-405™ dual diode laser light is directed at the great toenail at a distance of approximately 6 inches above the toenail. The dual wavelengths of 405 nm and 635 nm are activated simultaneously for 10 minutes of total treatment administration time.

06

What researchers measure

Primary outcomes

  1. Proportion of Toenails Attaining 25 Percent (%) or More Increase in Clear Nail

    Millimeter (mm) of clear nail from the base of the lunula was measured 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 3 months post-procedure administration. The percent (%) of increase in clear nail from baseline was calculated from there. An increase in mm or percent of clear nail between the two measurement points indicates the toenail onychomycosis has improved and is positive for study success. A decrease in mm or percent of clear nail between the two measurement points indicates the toenail onychomycosis has worsened and is negative for study success. Individual toenail success criteria was defined as 25 percent (%) or more increase in clear nail growth at 3 months post-procedure relative to baseline. Overall study success criteria was defined as 60% or more of treated toenails meeting the individual success criteria.

    Time frame: 12 weeks

Secondary outcomes

  1. Change in Millimeter (mm) of Clear Nail Bed

    Millimeter (mm) of clear nail from the base of the toenail lunula 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 3 months post-procedure administration. An increase in mm of clear nail between the two measurement points indicates that the toenail onychomycosis has improved and is positive for study success. A decrease in mm of clear nail between the two measurement points indicates that the toenail onychomycosis has worsened and is negative for study success.

    Time frame: 12 weeks

  2. Change in Percent (%) of mm Clear Nail

    Millimeter (mm) of clear nail from the base of the lunula was measured 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 3 months post-procedure administration. The percent (%) of increase in clear nail from baseline was calculated from there.

    Time frame: 12 weeks

07

Results

Posted Dec 11, 2015

Participant flow

Participant flow — Overall Study
MilestoneErchonia FX-405™ Laser
Started105
Completed105
Not completed0

Outcome measures

PrimaryProportion of Toenails Attaining 25 Percent (%) or More Increase in Clear Nail

Millimeter (mm) of clear nail from the base of the lunula was measured 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 3 months post-procedure administration. The percent (%) of increase in clear nail from baseline was calculated from there. An increase in mm or percent of clear nail between the two measurement points indicates the toenail onychomycosis has improved and is positive for study success. A decrease in mm or percent of clear nail between the two measurement points indicates the toenail onychomycosis has worsened and is negative for study success. Individual toenail success criteria was defined as 25 percent (%) or more increase in clear nail growth at 3 months post-procedure relative to baseline. Overall study success criteria was defined as 60% or more of treated toenails meeting the individual success criteria.

Time frame:
12 weeks
Reported as:
Number · percentage of toenails
Proportion of Toenails Attaining 25 Percent (%) or More Increase in Clear Nail
percentage of toenailsErchonia FX-405™ Laser
Proportion of Toenails Attaining 25 Percent (%) or More Increase in Clear Nail65
SecondaryChange in Millimeter (mm) of Clear Nail Bed

Millimeter (mm) of clear nail from the base of the toenail lunula 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 3 months post-procedure administration. An increase in mm of clear nail between the two measurement points indicates that the toenail onychomycosis has improved and is positive for study success. A decrease in mm of clear nail between the two measurement points indicates that the toenail onychomycosis has worsened and is negative for study success.

Time frame:
12 weeks
Reported as:
Mean · millilmeters
Change in Millimeter (mm) of Clear Nail Bed
millilmetersErchonia FX-405™ Laser
Change in Millimeter (mm) of Clear Nail Bed4.99 ± 2.24
Statistical analysis
  • Erchonia FX-405™ Laser · t-test, 2 sided · p = <0.0001
SecondaryChange in Percent (%) of mm Clear Nail

Millimeter (mm) of clear nail from the base of the lunula was measured 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 3 months post-procedure administration. The percent (%) of increase in clear nail from baseline was calculated from there.

Time frame:
12 weeks
Reported as:
Mean · percentage of change in mm clear nail
Change in Percent (%) of mm Clear Nail
percentage of change in mm clear nailErchonia FX-405™ Laser
Change in Percent (%) of mm Clear Nail30.36 ± 19.43
Statistical analysis
  • Erchonia FX-405™ Laser · t-test, 2 sided · p = <0.0001

Adverse events

Collected over 4 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Erchonia FX-405™ Laser—0/105 (0%)0/105 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Erchonia FX-405™ Laser
Mean59.5 ± 12.85
Sex: Female, Male
Sex: Female, Male(Participants)Erchonia FX-405™ Laser
Female64
Male41
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Erchonia FX-405™ Laser
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American3
White102
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Erchonia FX-405™ Laser
United States105
Percent (%) Toenail Onychomycosis Disease Involvement
Percent (%) Toenail Onychomycosis Disease Involvement(percent of toenail)Erchonia FX-405™ Laser
Mean57.39 ± 21.86
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Study locations

1 site
  • Arizona Institute of Footcare Physicians
    Mesa, Arizona 85204, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 11, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01534689
Lead sponsor
Erchonia Corporation
Responsible party
Sponsor
First posted
Feb 17, 2012
Start date
Apr 2011
Primary completion
Apr 2012
Completion
Apr 2012
Results posted
Dec 11, 2015
Last update
Dec 11, 2015

Study contacts

Kerry Zang, DPM
principal investigator

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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