This phase III trial compares the effect of vaginal fractional CO2 laser therapy to placebo for the treatment of vaginal dryness in breast cancer survivors with symptoms of genitourinary syndrome of menopause (GSM). Placebo therapy is an inactive treatment that is designed to mimic as closely as possible the active treatment being studied in a clinical trial. In this trial, patients will not be told whether they will be in the laser treatment group or the placebo group until 6-weeks after the third treatment visit (patient-blinded). At that point, patients who received placebo can elect to receive laser treatment similar to the other group. GSM is group of symptoms that affect the female genital and urinary systems and results from the lack of estrogen. Vaginal dryness can be commonly experienced with normal aging, with menopause, or come about from medications used to treat breast cancer such as chemotherapy or endocrine therapies like tamoxifen or aromatase inhibitors. Vaginal fractional CO2 laser therapy may help reduce vaginal dryness. compared to placebo.
PRIMARY OBJECTIVE: I. To determine whether vaginal fractional carbon dioxide (CO2) laser treatment is superior to vaginal placebo procedure in improving the severity of vaginal dryness, based on an 11-point (0-10) patient reported numerical analog scale. SECONDARY OBJECTIVES: I. To determine whether vaginal fractional CO2 laser treatment is superior to vaginal placebo procedure in improving patient-reported vaginal discomfort during sexual activity, based on the vaginal discomfort domain of the Patient Reported Outcomes Measurement Information System (PROMIS) Sexual Function version (v.) 2.0 Brief Profile-Female. II. To determine whether vaginal fractional CO2 laser therapy results in improvement in patient-reported quality of life, based on a single item 11-point numerical analog scale. III. To evaluate potential toxicities associated with vaginal fractional CO2 laser therapy. OUTLINE: Patients are randomized at a 2:1 ratio to Arm I and Arm II. ARM I: Patients undergo vaginal fractional CO2 laser therapy over 20-30 minutes every 6 weeks for 3 treatments in the absence of disease progression or unacceptable toxicity. ARM II: Patients undergo placebo procedure over 20-30 minutes every 6 weeks for 3 treatments in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 6 weeks, and 3,6, 12, 18 and 24 months after the last procedure visit.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
250
Undergo vaginal fractional CO2 laser therapy
Undergo placebo procedure
Ancillary studies
Ancillary studies
Trinity Health IHA - Obstetrics and Gynecology West Arbor
Ann Arbor, Michigan, United States
RECRUITINGOhio State University Comprehensive Cancer Center
Columbus, Ohio, United States
SUSPENDEDChanges in patient reported vaginal dryness severity
Will use an 11-point (0-10 scale) numerical analog scale to assess patient reported severity of vaginal dryness. Higher scores represent worse symptoms (0: None - 10: Worst possible). The vaginal dryness scores at each time point will be summarized separately by treatment arm using the mean (standard deviation) and median (range). The score changes from baseline to the 18-week time point (T4) will be compared using two-sample t-test or Wilcoxon rank-sum test as appropriate.
Time frame: Up to 18 weeks
Changes in vaginal discomfort during sexual activity (for sexually active subset of study population only)
Assessed using the Vaginal discomfort domain of Patient Reported Outcomes Measurement Information System (PROMIS) Sexual Function version (V) 2.0 Brief Profile - Female (only the sexually active women will be evaluable for this, which is estimated to be approximately 50% of the population). Higher scores represent more discomfort (1: None - 5: A lot). Change in the vaginal discomfort domain of the PROMIS Sexual Function v. 2.0 Brief Profile-Female from baseline to each post-therapy-initiation time point will be summarized by treatment arm and will be compared as described for the primary endpoint.
Time frame: Baseline up to 24 months after completion of treatment
Change in quality of life
Evaluated using 11-point (0-10) numerical analog scale. Higher scores represent better quality of life (0: As bad as it can be - 10: As good as it can be). Change in patient reported quality of life from baseline to each post-therapy initiation time point will be summarized and compared as described for the primary endpoint.
Time frame: Baseline up to 24 months after completion of treatment
Incidence of adverse events associated with vaginal fractional CO2 laser therapy
Incidences of toxicities in the fractional CO2 laser therapy arm will be summarized by type. Common toxicities that occur in both arms will be summarized and compared between arms using the Chi-square test or Fisher's exact test, as appropriate.
Time frame: Up to 24 months after completion of treatment
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