Fractional Laser and Ultrasound for Striae Distensae
This was a prospective randomized controlled study comparing the efficacy of micro-focused ultrasound when used in conjunction with 1550-nm erbium-doped fractionated laser versus 1550-nm erbium-doped fractionated laser alone for treatment of striae distensae(stretch marks).
Each side of thigh (or abdomen) was randomized to receive 1550nm-fractionated laser treatment every 2 weeks for a total of 4 treatments on one side and the contralateral side received micro-focused ultrasound treatment and 1550nm-fractionated laser alternatively every 2 weeks for a total of 4 treatments with site-match control area of baseline striae on each side.
The primary outcome measure by two dermatologists blindly compared the two areas of striae distensae on each side from live subjects using a questionnaire and quartile rating scale on the final follow-up visit.
This study was a pilot study designed to determine the feasibility of these procedures.
|Stretch Marks||Device: Combination treatment Device: 1550-nm erbium-doped fractionated laser|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||Comparison of Fractional Photothermolysis Alone Versus Fractional Photothermolysis Plus Intense Focused Ultrasound for Treatment of Striae Distensae: A Prospective Randomized Control Trial.|
- Live-rater by Two Blinded Dermatologists [ Time Frame: week 10 ]The primary outcome was a blinded rating of the treatment area (Fractional Laser vs. Fractional Laser plus Intense Focused Ultrasound) with the best cosmetic appearance. Two dermatologists blindly evaluated the treated and control areas of each side from live subjects on the final follow up visit (week 10). This was reported as percentages of participants for whom "1550-nm Erbium-doped Fractionated Laser" or "Micro-focused Ultrasound and 1550nm-fractionated Laser" resulted in the "best cosmetic appearance".
|Study Start Date:||August 2010|
|Study Completion Date:||June 2011|
|Primary Completion Date:||June 2011 (Final data collection date for primary outcome measure)|
|Active Comparator: 1550-nm erbium-doped fractionated laser||
Device: 1550-nm erbium-doped fractionated laser
Each side of thigh (or abdomen) was randomized to receive 1550nm-fractionated laser treatment every 2 weeks for a total of 4 treatments on one side.
Active Comparator: Combination treatment
"micro-focused ultrasound" and "1550nm-fractionated laser"
Device: Combination treatment
The contralateral side received the combination of micro-focused ultrasound treatment and 1550nm-fractionated laser alternatively every 2 weeks for a total of 4 treatments with site-match control area of baseline striae on each side.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01186848
|United States, Illinois|
|Northwestern University Department of Dermatology|
|Chicago, Illinois, United States, 60611|
|Principal Investigator:||Murad Alam, MD||Northwestern University|