Trial Outcomes & Findings for Evaluation of Non-Ablative Laser for Treatment of Direct Brow Lift Scars (NCT NCT02032641)
NCT ID: NCT02032641
Last Updated: 2017-01-27
Results Overview
Which scar, overall, appears to have improved more from initial to final visit, as rated by blinded examiner of photographs
COMPLETED
NA
9 participants
1 month after final treatment
2017-01-27
Participant Flow
All patients who had undergone direct brow lift within the last three years were contacted by telephone, and an approved script was used for recruitment.
Exclusion criteria included unilateral procedures, age less than 18 years, pregnancy, history of photodermatoses or adverse outcomes associated with laser, history of isotretinoin use within the prior six months, and active use of other scar treatment in the brow area.
Participant milestones
| Measure |
Laser Treatment and Control Group
Each patient was randomized to have one of two scars treated with Laser Genesis and a scar not treated with Laser Genesis, which was used as a control. Patients were not allowed to undergo laser or any other scar treatments with the exception of sun protection for the control scar for the duration of the study. The laser treatment was administered by manually scanning the rapidly pulsed laser in an even, painting motion throughout the entire treatment zone. The eyebrow hairs were covered with white tape to prevent inadvertent alopecia. The laser handpiece was oriented perpendicular to the skin at all times, at a distance of 1-2 cm. Patients were instructed throughout to give verbal feedback regarding if the area was "too hot" as an additional safeguard against epidermal damage.
Laser treatment: Non-ablative, non-fractional, microsecond-pulsed Neodymium:Yttrium/Aluminum/Garnet laser 500-1000 pulses, 0.3 msec pulse duration, 10-14 J/cm2, 5 mm spot size
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|---|---|
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Overall Study
STARTED
|
9
|
|
Overall Study
COMPLETED
|
8
|
|
Overall Study
NOT COMPLETED
|
1
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Evaluation of Non-Ablative Laser for Treatment of Direct Brow Lift Scars
Baseline characteristics by cohort
| Measure |
Laser Treatment and Control Group
n=9 Participants
Each patient was randomized to have one of two scars treated with Laser Genesis and a scar not treated with Laser Genesis, which was used as a control. Patients were not allowed to undergo laser or any other scar treatments with the exception of sun protection for the control scar for the duration of the study. The laser treatment was administered by manually scanning the rapidly pulsed laser in an even, painting motion throughout the entire treatment zone. The eyebrow hairs were covered with white tape to prevent inadvertent alopecia. The laser handpiece was oriented perpendicular to the skin at all times, at a distance of 1-2 cm. Patients were instructed throughout to give verbal feedback regarding if the area was "too hot" as an additional safeguard against epidermal damage.
Laser treatment: Non-ablative, non-fractional, microsecond-pulsed Neodymium:Yttrium/Aluminum/Garnet laser 500-1000 pulses, 0.3 msec pulse duration, 10-14 J/cm2, 5 mm spot size
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|---|---|
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Age, Categorical
<=18 years
|
0 Participants
n=5 Participants
|
|
Age, Categorical
Between 18 and 65 years
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4 Participants
n=5 Participants
|
|
Age, Categorical
>=65 years
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5 Participants
n=5 Participants
|
|
Sex: Female, Male
Female
|
1 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
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8 Participants
n=5 Participants
|
PRIMARY outcome
Timeframe: 1 month after final treatmentPopulation: 3 graders masked to treatments were asked to judge side-by-side photographs of first and final visits for which scar improved more. Each pair of before-and-after photos was graded twice by each examiner. Results are percentage of times treated scar was chosen by examiners as most improved (an analysis of 6 results per pair of photos).
Which scar, overall, appears to have improved more from initial to final visit, as rated by blinded examiner of photographs
Outcome measures
| Measure |
Laser Treatment Side
n=8 BROW
Each patient was randomized to have one of two scars treated with Laser Genesis. The treatment was administered by manually scanning the rapidly pulsed laser in an even, painting motion throughout the entire treatment zone. The eyebrow hairs were covered with white tape to prevent inadvertent alopecia. The laser handpiece was oriented perpendicular to the skin at all times, at a distance of 1-2 cm. Patients were instructed throughout to give verbal feedback regarding if the area was "too hot" as an additional safeguard against epidermal damage.
|
Control Scar
n=8 BROW
Each patient had a scar which was randomized to not undergo treatments with Laser Genesis, and was used as a control. Patients were not allowed to undergo laser or any other scar treatments with the exception of sun protection for the control scar for the duration of the study.
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|---|---|---|
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Relative Improvement
|
50.0 percentage of times treated scar chosen
Standard Deviation 12.5
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50.0 percentage of times treated scar chosen
Standard Deviation 12.5
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SECONDARY outcome
Timeframe: 10 minutes before first treatment and at the final visitPopulation: Patients were asked to grade overall cosmesis of both the treated and control scars on a 1-10 scale, with 1 being extremely poor and 10 being extremely excellent. Grading was done 10 minutes prior to each laser treatment and 4 weeks after final treatment
Subjects were asked to rate overall cosmesis of both the treated and control scars on a 1-10 scale, with 1 being extremely poor and 10 being extremely excellent, as rated by participant
Outcome measures
| Measure |
Laser Treatment Side
n=8 BROW
Each patient was randomized to have one of two scars treated with Laser Genesis. The treatment was administered by manually scanning the rapidly pulsed laser in an even, painting motion throughout the entire treatment zone. The eyebrow hairs were covered with white tape to prevent inadvertent alopecia. The laser handpiece was oriented perpendicular to the skin at all times, at a distance of 1-2 cm. Patients were instructed throughout to give verbal feedback regarding if the area was "too hot" as an additional safeguard against epidermal damage.
|
Control Scar
n=8 BROW
Each patient had a scar which was randomized to not undergo treatments with Laser Genesis, and was used as a control. Patients were not allowed to undergo laser or any other scar treatments with the exception of sun protection for the control scar for the duration of the study.
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|---|---|---|
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Overall Appearance
Before first treatment
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3.75 units on a scale
Standard Deviation 2.12
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4.37 units on a scale
Standard Deviation 1.50
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|
Overall Appearance
Final visit
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6.25 units on a scale
Standard Deviation 1.98
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4.50 units on a scale
Standard Deviation 2.62
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SECONDARY outcome
Timeframe: within 1 hour after final treatmentPopulation: Within 1 hour after treatment, subjects were given a mirror and asked to rate perceived hair loss for each side on a 1-10 scale, with 1 representing none and 10 representing very significant
After each laser session, subjects were asked to rate perceived amount of hair loss from both the treated and control scars on a 1-10 scale, with 1 being none at all and 10 being extremely significant
Outcome measures
| Measure |
Laser Treatment Side
n=8 BROW
Each patient was randomized to have one of two scars treated with Laser Genesis. The treatment was administered by manually scanning the rapidly pulsed laser in an even, painting motion throughout the entire treatment zone. The eyebrow hairs were covered with white tape to prevent inadvertent alopecia. The laser handpiece was oriented perpendicular to the skin at all times, at a distance of 1-2 cm. Patients were instructed throughout to give verbal feedback regarding if the area was "too hot" as an additional safeguard against epidermal damage.
|
Control Scar
n=8 BROW
Each patient had a scar which was randomized to not undergo treatments with Laser Genesis, and was used as a control. Patients were not allowed to undergo laser or any other scar treatments with the exception of sun protection for the control scar for the duration of the study.
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|---|---|---|
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Hair Loss
|
1 units on a scale
Standard Deviation 0
|
1 units on a scale
Standard Deviation 0
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Adverse Events
Laser Right, Non-laser Left
Laser Left, Non-laser RIght
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place