ClinicalTrials.gg
CompletedNCT03392935Updated May 8, 2023Results posted

Efficacy of 1540 Nanometer Erbium Glass Laser to Improve Benign Dermatofibromas

An interventional study of 1540 nanometer Erbium glass laser in Dermatofibroma of Skin, sponsored by University of Utah. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-05-08.

Sponsored by University of Utah · Not applicable, Interventional, and Treatment

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Phase
Not applicable
Study type
Interventional
Enrollment
37
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This study is to find a more effective treatment for itchy, painful or unsightly dermatofibromas, that will improve symptoms of itch and/or pain and/or improve the appearance of dermatofibromas. This is an open-label study where subjects will receive a laser treatment at week 0, and week 4, and then 2 additional follow-up visits. Photographs will be taken at each visit and rated by blinded reviewers after the study to determine efficacy.

Read the detailed description

The main objective of this study is to find a more effective treatment for itchy, painful or unsightly dermatofibromas, that will improve symptoms of itch and/or pain and/or improve the appearance of dermatofibromas. A secondary objective of this study is to better understand the 1540 nanometer Erbium glass laser and its impact on the skin.

This is an open-label study where subjects will receive a laser treatment at week 0, and week 4, and then have 2 additional follow-up visits (no laser treatment at these visits). Photographs will be taken at each visit and photographs from pre-treatment and follow-up 1 (week 8) will rated by blinded reviewers after the study to determine efficacy.

02

Conditions studied

  • Dermatofibroma of Skin
03

In context

Histiocytoma, Benign Fibrous

4 studies on the registry are indexed under Histiocytoma, Benign Fibrous; 1 is open to participants now.

Browse Histiocytoma, Benign Fibrous studies →

Lead sponsor

University of Utah is the lead sponsor of 996 studies on the registry; 176 are open to participants now.

Of its 114 completed or terminated interventional studies of FDA-regulated products, 69 (61%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • female or male, age 18-65, have at least one dermatofibroma of the skin, on the trunk or extremities, diagnosed by dermatologist, dermatofibroma is either itchy, painful or unattractive to the patient.

Exclusion criteria

Exclusion Criteria:

  • previous treatment to the dermatofibroma(s), pregnant or nursing women, diabetic, smoker, psoriasis, lupus or other diseases, patient with a clear history of keloids or poor wound healing. This study will exclude dermatofibroma lesions on the face and genitals.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

05

Study design

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

Study arms

  • Experimental
    All Subjects

    All subjects will be treated with the laser at week 0 and week 4. Only assessors will be blinded and rate the dermatofibromas in photographs, they will not know which photos were taken pre-treatment vs. post-treatment to determine efficacy.

    Device: 1540 nanometer Erbium glass laser

Interventions

  • Device1540 nanometer Erbium glass laser

    Subjects will receive laser treatment by dermatologist at week 0 and week 4.

06

What researchers measure

Primary outcomes

  1. Modified Patient and Observer Scar Assessment Scale Color Component Comparing Change From Baseline to Week 12.

    Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

    Time frame: 12 weeks

Secondary outcomes

  1. Modified Patient and Observer Scar Assessment Scale Itch Component Comparing Change From Baseline to Week 12.

    Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

    Time frame: 12 Weeks

  2. Modified Patient and Observer Scar Assessment Scale Texture Component Comparing Change From Baseline to Week 12.

    Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

    Time frame: 12 Weeks

  3. Modified Patient and Observer Scar Assessment Scale Pain Component Comparing Change From Baseline to Week 12.

    Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

    Time frame: 12 weeks

07

Results

Posted Jun 23, 2021

Participant flow

Participant flow — Overall Study
MilestoneAll Subjects
Started37
Completed35
Not completed2

Outcome measures

PrimaryModified Patient and Observer Scar Assessment Scale Color Component Comparing Change From Baseline to Week 12.

Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

Time frame:
12 weeks
Reported as:
Mean · score on a scale
Modified Patient and Observer Scar Assessment Scale Color Component Comparing Change From Baseline to Week 12.
score on a scaleAll Subjects
Modified Patient and Observer Scar Assessment Scale Color Component Comparing Change From Baseline to Week 12.-2.33 ± 2.33
SecondaryModified Patient and Observer Scar Assessment Scale Itch Component Comparing Change From Baseline to Week 12.

Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

Time frame:
12 Weeks
Reported as:
Mean · score on a scale
Modified Patient and Observer Scar Assessment Scale Itch Component Comparing Change From Baseline to Week 12.
score on a scaleAll Subjects
Modified Patient and Observer Scar Assessment Scale Itch Component Comparing Change From Baseline to Week 12.-0.25 ± 1.03
SecondaryModified Patient and Observer Scar Assessment Scale Texture Component Comparing Change From Baseline to Week 12.

Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

Time frame:
12 Weeks
Reported as:
Mean · score on a scale
Modified Patient and Observer Scar Assessment Scale Texture Component Comparing Change From Baseline to Week 12.
score on a scaleAll Subjects
Modified Patient and Observer Scar Assessment Scale Texture Component Comparing Change From Baseline to Week 12.-2.92 ± 2.89
SecondaryModified Patient and Observer Scar Assessment Scale Pain Component Comparing Change From Baseline to Week 12.

Patient reported assessment scale of pain, itch, color, and texture. Each element (pain, itch, color, and texture) is graded on a 1-10 scale. The lowest score is '1', which corresponds to the situation of normal skin/no symptoms (i.e. not different in color, not different in texture, no itching, no pain). Score 10 equals the largest difference from normal skin (i.e. severely painful, severely itchy, vert different color, very different texture).

Time frame:
12 weeks
Reported as:
Mean · score on a scale
Modified Patient and Observer Scar Assessment Scale Pain Component Comparing Change From Baseline to Week 12.
score on a scaleAll Subjects
Modified Patient and Observer Scar Assessment Scale Pain Component Comparing Change From Baseline to Week 12.0 ± 0.42

Adverse events

Collected over Adverse events were collected from baseline to week 12.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
All Subjects0/37 (0%)0/37 (0%)37/37 (100%)
Most frequent other events
Most frequent other events
EventAll Subjects
Transient ErythemaSkin and subcutaneous tissue disorders37/37
Transient EdemaSkin and subcutaneous tissue disorders37/37

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)All Subjects
<=18 years0
Between 18 and 65 years37
>=65 years0
Age, Continuous
Age, Continuous(years)All Subjects
Mean43.8 ± 10.8
Sex: Female, Male
Sex: Female, Male(Participants)All Subjects
Female32
Male5
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)All Subjects
Region of Enrollment
Region of Enrollment(participants)All Subjects
United States37
08

Study locations

1 site
  • University of Utah Dermatology
    Salt Lake City, Utah 84132, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in Mar 2021, 40 months.

Results were first posted in Jun 2021, 2 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 2, 2018
First posted
Jan 8, 2018
StartActual
Nov 30, 2017
Primary completionActual
Mar 31, 2021
CompletionActual
Mar 31, 2021
Results first posted
Jun 23, 2021
Last update
May 8, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 8, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03392935
Lead sponsor
University of Utah
Responsible party
Sponsor
First posted
Jan 8, 2018
Start date
Nov 30, 2017
Primary completion
Mar 31, 2021
Completion
Mar 31, 2021
Results posted
Jun 23, 2021
Last update
May 8, 2023

Study contacts

Karen Stolman, MD
principal investigator · Intermountain Health Care, Inc.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2021. You cannot join it, but the record below documents what was studied.

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