This is a randomized placebo-controlled trial design to determine whether combining FxCO2-laser with the traditional therapy of clobetasol propionate 0.05% ointment (combined treatment) as compared to FxCO2-laser and placebo ointment (FxCO2-laser only) will improve treatment response in women undergoing FxCO2-laser for vulvar lichen sclerosus. Primary objective: To evaluate if women with LS who undergo FxCO2 laser therapy and concomitant TCS (clobetasol group) have higher treatment success (defined as a MCID of a ≥16 point improvement in Skindex-29 questionnaire) than those who undergo FxCO2 laser and placebo ointment (placebo group). * Hypothesis: A higher proportion of women randomized to clobetasol will achieve treatment success as compared to those randomized to placebo. * Approach: The proportion of women in each cohort who obtain a ≥16 point improvement in Skindex-29 validated questionnaire score from baseline to final visit will be compared. Secondary objectives: To compare change in pre- and post-treatment scores on validated questionnaires measuring vulvovaginal symptoms, sexual function, lower urinary tract function, and genital self-image between the clobetasol group compared to the placebo group. * Hypothesis: Women randomized to clobetasol will demonstrate an equal or greater improvement on validated quality of life questionnaires measuring vulvovaginal symptoms, sexual function, lower urinary tract function, and genital self-image as compared to women randomized to placebo. * Approach: Change scores will be calculated to determine change per participant over the treatment period and mean change scores will be compared between cohorts.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
212
All women will be undergoing FxCO2-laser therapy as this treatment is a criterion for enrollment.
Clobetasol propionate 0.05% ointment obtained from a commercial manufacturer
Kaiser Permanente - Southern California Permanente Medical Group
San Diego, California, United States
MedStar Health
Washington D.C., District of Columbia, United States
University of Chicago
Chicago, Illinois, United States
Walter Reed National Military Medical Center
Bethesda, Maryland, United States
Massachusetts General Hospital
Boston, Massachusetts, United States
The University of New Mexico
Albuquerque, New Mexico, United States
Columbia University
New York, New York, United States
Ohio State University
Columbus, Ohio, United States
The Institute for Female Pelvic Medicine & Reconstructive Surgery
Allentown, Pennsylvania, United States
Waukesha Memorial Hospital
Waukesha, Wisconsin, United States
Treatment success
Minimally clinically important difference of a ≥16 point improvement in Skindex-29 validated questionnaire score. Skindex-29 responses are transformed to a linear scale from 0 (no effect) to 100 (effect experienced all the time), and are reported as three scale scores, corresponding to three domains (symptoms, emotions, and functioning). A reduction in Skindex-29 score of 16 points or more has been shown to indicate what is considered a clinically meaningful improvement.
Time frame: About 5 months (baseline to final visit)
Treatment response - vulvovaginal symptoms
Treatment response - vulvovaginal symptoms will be measured by pre- and post-treatment scores on the vulvovaginal Symptoms Questionnaire, a 21-item survey measuring vulvovaginal symptoms in postmenopausal women.
Time frame: About 5 months (baseline to final visit)
Treatment response - sexual function
Treatment response - sexual function will be measured by pre- and post-treatment scores on the Female Sexual Function Index, a validated questionnaire to assess sexual function.
Time frame: About 5 months (baseline to final visit)
Treatment response - genital self image
Treatment response - genital self image will be measured by pre- and post-treatment scores on the Female Genital Self Image Scale, a validated survey with scores ranging from 7-28 with higher scores indicate a more positive genital self-image.
Time frame: About 5 months (baseline to final visit)
Treatment response - lower urinary tract function
Treatment response - lower urinary tract function will be measured by pre- and post-treatment scores on the LURN SI-10, a 10-item questionnaire with scores ranging from 0 to 38 (higher scores = worse symptoms/bother).
Time frame: About 5 months (baseline to final visit)
Participant-perceived improvement
Patient Global Impression of Improvement (PGI-I): a one single item question that will ask participants to rate their improvement after undergoing treatment on a 7-point Likert scale ranging from "very much worse" to "very much better."
Time frame: Final study visit at 4-6 weeks after third Fractionated CO2 laser treatment - one time question
Participant-perceived treatment satisfaction
Level of satisfaction with treatment: a one single item question that will ask participants to rate their level of satisfaction with treatment on a 5-point Likert scale from "very dissatisfied" to "very satisfied".
Time frame: Final study visit at 4-6 weeks after third Fractionated CO2 laser treatment - one time question
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