ClinicalTrials.gg
CompletedNCT03681678Updated Aug 17, 2026Results posted

Laser Therapy for Treatment of Urogenital Symptoms in Women

An observational study in Genitourinary System; Disorder, Female, Burning Vagina and Dyspareunia, sponsored by Corewell Health East. Completed at 1 site in United States. Open to female participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2026-08-17.

Sponsored by Corewell Health East · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
18 Years to 90 Years
Sex
Female
01

Study summary

This is a prospective observational study of women undergoing vaginal treatment with the fractional carbon dioxide (fCO2) laser for various urogenital symptoms.

Read the detailed description

Fractional carbon dioxide (fCO2) laser treatment of the vaginal tissue has been proposed as a treatment for various genitourinary symptoms, including vaginal itching, burning, dryness, dyspareunia (difficult or painful sexual intercourse), dysuria (painful or difficult urination), nocturia (waking at night to urinate), incontinence (the involuntary loss of urine), urine frequency, urine urgency, and urinary tract infection (UTI).

Case report and case series data suggest that laser treatment of the vaginal tissues is well tolerated by patients and does not pose serious risks to the patient. Several case series demonstrate improvements in vulvovaginal and urinary symptoms, and in sexual function. However, these studies are from a select few centers, are small, and are also biased in that the laser treatment is only available to patients who are able to pay for it. Additionally, most studies report only on vulvovaginal symptoms, despite increasing use of laser for urinary symptoms. Several recent editorials have called for larger studies with longer follow-up and high quality outcome measures. This study has been designed to address these needs.

This is a prospective observational study of women undergoing vaginal treatment with the fCO2 laser for a wide range of patients with vulvovaginal, sexual and/or urologic complaints. The effects of fCO2 therapy will be evaluated by various physical assessments and patient questionnaires.

02

Conditions studied

  • Genitourinary System; Disorder, Female
  • Burning Vagina
  • Dyspareunia
  • Irritation; Vagina
  • Menopause Related Conditions
  • Urinary Incontinence
  • Urinary Bladder, Overactive
  • Urinary Tract Infections
  • Stress Urinary Incontinence

Keywords

  • Laser Therapy
03

In context

Dyspareunia

158 studies on the registry are indexed under Dyspareunia; 40 are open to participants now.

This study's enrollment of 100 is below the median of 165 across 30 observational studies indexed under Dyspareunia.

Browse Dyspareunia studies →

Lead sponsor

Corewell Health East is the lead sponsor of 19 studies on the registry; 9 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Women meeting all of the inclusion criteria and non of the exclusion criteria may be enrolled in the study.

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

  1. Female
  2. 18 years of age or greater and 90 years of age or less
  3. One or more of the following indications for fCO2 laser treatment:

    1. Genitourinary symptoms of menopause, including after natural, medical- induced or surgical menopause
    2. Vaginal dryness, burning, itching or dyspareunia not related to menopause
    3. Stress urinary incontinence
    4. Recurrent urinary tract infections (UTIs), defined as 4 or more in a year
    5. Overactive bladder
  4. Must sign the
  5. Must be willing to comply with the study protocol

Exclusion criteria

Exclusion Criteria:

  1. to fCO2 laser treatment, such as:

    1. Currently implanted synthetic pelvic mesh, sling or tape
    2. Current or previous genital cancers
    3. Radiation to the vaginal or colo-rectal tissue
    4. Currently pregnant or less than 3 months following pregnancy
    5. Undiagnosed vaginal or cervical lesions
  2. Patients who have received vaginal fCO2 laser treatment within the past 12 months
  3. Patients treated with vaginal estrogen within the past 3 months
  4. Patients with undiagnosed vaginal bleeding
  5. Active vulvar or vaginal infection, including herpes, candidiasis, etc.
  6. Current urinary tract infection (UTI), confirmed by positive urine culture and patient-reported symptoms
  7. Pelvic or vaginal surgery with the past 9 months
  8. Pelvic organ prolapse beyond the introitus
  9. Patient possesses any other characteristics that, per the investigator's judgment, deems them unsuitable (i.e. may increase the patient's risk, may affect the conduct of the study etc.) for the treatment and/or study
  10. Participation in an trial that used a study treatment, medication and/or biologic within 6 months or less prior to the date of the screening visit
Terms in these criteria, in plain language(3)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (actual)
Target follow-up
36 Months
Patient registry
Yes

Groups and cohorts

  • fCO2 Laser Therapy Group

    Women treated with the fCO2 laser

    Device: fCO2 Laser Therapy Group

Interventions

  • DevicefCO2 Laser Therapy Group

    Women enrolled in the study will receive three treatments with the fractional carbon dioxide (fCO2) laser. The interval between treatments is approximately six weeks. Intra-vaginal laser treatments will be delivered at 8 points at each level of the vaginal wall.

06

What researchers measure

Primary outcomes

  1. Patient Global Impression of Improvement (PGI-I) Score at 4 Weeks After Initial Treatment

    PGI-I score is recorded 4 weeks after initial treatment completion. The PGI-I asks the patient to "check the box that best describes how your urinary and/or vaginal symptoms are now, compared with how you symptoms were before you began this study." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better", 2 is "Much Better, 3 is "A Little Bit Better", 4 is "No Change", 5 is "A Little Worse", 6 is "Much Worse", and 7 is "Very Much Worse". A score from 1 to 3 would indicate improvement.

    Time frame: 4 weeks post-initial treatment

Secondary outcomes

  1. Change in Patient Global Impression of Improvement (PGI-I) Score at 6 Months After Initial Treatment

    The average change in patients' PGI-I scores from baseline to 6 months and 36 months post-treatment. The PGI-I asks the patient to "check the one number that best describes how your urinary tract condition is now compared with how it was before your treatment." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better" and 7 is "Very Much Worse". A lower score would represent improvement and a favorable outcome.

    Time frame: 6 months post-initial treatment

  2. Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 6 Months Post-initial Treatment.

    The Vaginal Health Inventory Score (VHIS) is an assessment tool, used by providers, to determine if vaginal atrophy is present. Providers perform a vaginal exam and give a score of 1-5 (abnormal to normal, respectively) on each of the following vaginal parameters: elasticity, secretion/fluid volume, vaginal pH, integrity of the epithelium, and lubrication/moisture of the vaginal wall. The total VHIS score is a sum of the individual scores of these 5 vaginal parameters. The minimum score is 5 and the maximum score is 25. A score of 5-14 indicates the presence of vaginal atrophy, while a score of 15-25 indicates normal healthy vaginal tissue. For this outcome measure we reported the change in VHIS between 6 months and baseline. A positive number means that vaginal tissue is healthier at 6 months compared to baseline.

    Time frame: 6 months post-initial treatment

  3. Change in Urinary Symptoms Specifically Stress Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.

    The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the SUI score only (QUID-SUI). Patients are asked how often they leak urine in three different situations. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-SUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage in response to a stress event (e.g. cough, lifting, exercise). Here we report the change in QUID-SUI score from 6 months to baseline. A negative number means the QUID stress urinary incontinence score has gone down and severity of SUI his better at 6 months compared to baseline.

    Time frame: 6 months post-initial treatment

  4. Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months After Initial Treatment.

    For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the symptom bother scale that consists of 6 questions. Each question asks about the level of bother related to a specific symptom (e.g. urgency, frequency, nighttime urination and leakage). The patient rates the degree of bother on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 6 questions are added and converted to a 100-point scale. The symptom bother score ranges from 0-100. A higher score is associated with a high degree of bother. For this outcome measure, we report the change in the mean symptom bother scale from 6 months to baseline. A negative change means that the degree of symptom bother decreased at 6 months compared to before treatment.

    Time frame: 6 months post-initial treatment

  5. Change in Number of Voids as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe urinary frequency (number of voids) and incontinence episodes. The change in number of voids over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of voids went down compared to baseline.

    Time frame: 6 months post-initial treatment

  6. Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 6 Months Post-initial Treatment.

    The FSFI consists of 6 subscales related to sexual desire (2 Qs scale 1 worst - 5 best), arousal (4Qs 0 worst - 5 best), lubrication (4Qs 0 worst-5 best), orgasm (3Qs 0 worst - 5 best), satisfaction ( 3Qs 0 worst - 5 best), and pain (3 Qs 0 worst - 5 best). Higher scores indicate higher sexual functioning. Scores range from 2-36. A score of 26.55 has been clinically selected as the cut-off for sexual dysfunction. Scores below this value indicate sexual dysfunction. The overall change is measured at 6 months minus baseline. A positive score means the sexual dysfunction symptoms are getting worse. Only people that had sexual activity were included.

    Time frame: 6 months post-initial treatment

  7. Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 6 Months Post-initial Treatment.

    A clean catch urine specimen will be collected at each visit. A positive urine dipstick test will have the presence of leukocytes and nitrites accompanied by symptoms (dysuria, bladder pain, and/or urinary frequency) and will be sent for a culture. A positive urine culture has the presence of bacterial growth. Only patients that reported recurrent UTI's - 4 or more in the past year (i.e. had 4 or more positive urine cultures in a year) at baseline with an occurrence of a positive urine culture at or before 6 months post-initial treatment will be counted.

    Time frame: 6 months post-initial treatment

  8. Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 6 Months Post-initial Treatment.

    The GAD-7 is a self-reported questionnaire for screening and measuring severity of generalized anxiety disorder. There are 7 questions total asking how often the patient has been bothered by certain problems over the past 2 weeks. Each answer is scored on a scale from 0 = not at all to 3 = nearly every day. All scores are added up to calculate the total score which ranges from 0 - 21. Total scores greater than or equal to 10 indicate moderate anxiety and further assessment is recommended. In this outcome measure we report the change in GAD-7 score between 6 months and baseline. A negative number means a reduction in GAD-7 score and therefore a reduction in anxiety/depression at 6 months compared to before treatment.

    Time frame: 6 months post-initial treatment

  9. Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 6 Months Post-initial Treatment.

    The PHQ-8 is an eight-item questionnaire that measures the severity of depression symptoms over the past 2 weeks. For each of the questions, the patient is asked the rate how often they are bothered by a specific problem (e.g. sleep disturbance, fatigue, appetite change, low-self esteem, poor concentration). Each question is scored from 0 = not at all to 3 = nearly every day. The scores of each question are added together to form the total score, which ranges from 0 - 24. The higher the score, the more severe depressive symptoms are. A score of 10 or greater is commonly used to indicate the presence of clinically significant depressive symptoms. Here we report the change in score between 6 months and baseline. A negative number means there is a reduction in PHQ8 score at 6 months compared to before treatment and therefore a reduction in depression.

    Time frame: 6 months post-initial treatment

  10. Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 6 Months.

    The Incontinence Quality of Life Questionnaire (I-QOL) is a validated tool to assess the impact of urinary incontinence problems. The I-QOL has 22 incontinent-specific quality of life items. The 22 items are broken down into 3 subscales: Avoidance and Limiting Behaviors Score (8 of the 22 items), Psychosocial Impacts Score (9 of the 22 items), and Social Embarrassment Score (5 of the 22 items). Each question has a five-point ordinal response scale: 1= Extremely, 2= Quite a Bit, 3= Moderately, 4= A Little, and 5= Not at All. All 22 items are summed up, and the sum is converted to a 100-point scale. The range of the score is 0-100, with a high score indicating a better quality of life. In this outcome measure we report the change in the I-QOL score at 6 months minus the score at baseline. A positive score indicates that the quality of life improved at 6 months compared to before treatment.

    Time frame: 6 months post-initial treatment

  11. The Presence of Lactobacillus, Assessed by Vaginal Swab at 6 Months.

    A vaginal exam is completed at 6 months. In some cases the 6 month visit was completed remotely and thus a vaginal exam was not completed. Presence or absence of lactobacillus will be collected by the physician via a vaginal swab and assessed under the microscope of the patients that had a vaginal exam completed. This is the total number of patients positive for lactobacillus at 6 months.

    Time frame: 6 months post-initial treatment

  12. Change in Patient Global Impression of Improvement (PGI-I) Score at 36 Months.

    The average change in patients' PGI-I scores from baseline to 6 months and 36 months post-treatment. The PGI-I asks the patient to "check the one number that best describes how your urinary tract condition is now compared with how it was before your treatment." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better" and 7 is "Very Much Worse". A lower score would represent improvement and a favorable outcome.

    Time frame: 36 months post-initial treatment

  13. Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 36 Month Post-initial Treatment.

    The Vaginal Health Inventory Score (VHIS) is an assessment tool, used by providers, to determine if vaginal atrophy is present. Providers perform a vaginal exam and give a score of 1-5 (abnormal to normal, respectively) on each of the following vaginal parameters: elasticity, secretion/fluid volume, vaginal pH, integrity of the epithelium, and lubrication/moisture of the vaginal wall. The total VHIS score is a sum of the individual scores of these 5 vaginal parameters. The scale ranges from 5-25. A score of 5-14 indicates the presence of vaginal atrophy, while a score of 15-25 indicates normal/healthy vaginal tissue. For this outcome measure we reported the change in VHIS between 36 months and baseline. A positive number means that vaginal tissue is healthier at 36 months compared to baseline.

    Time frame: 36 months post-initial treatment

  14. Change in Urinary Symptoms, Specifically Stress Urinary Incontinence as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-inital Treatment.

    The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the SUI score only (QUID-SUI). Patients are asked how often they leak urine in three different situations. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-SUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage in response to a stress event (e.g. cough, lifting, exercise). Here we report the change in QUID-SUI score from 36 months to baseline. A negative number means the QUID stress urinary incontinence score has gone down and severity of SUI his better at 36 months compared to baseline.

    Time frame: 36 months post-initial treatment

  15. Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.

    The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the UUI score only (QUID-UUI). Patients are asked how often they leak urine in three different situations related to urgency. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-UUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage due to urgency. Here we report the change in QUID-UUI score from 6 months to baseline. A negative number means the QUID urge urinary incontinence score has gone down and severity of UUI has improved at 6 months compared to before treatment.

    Time frame: 6 months post-initial treatment

  16. Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-initial Treatment.

    The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the UUI score only (QUID-UUI). Patients are asked how often they leak urine in three different situations related to urgency. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-UUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage due to urgency. Here we report the change in QUID-UUI score from 36 months to baseline. A negative number means the QUID urge urinary incontinence score has gone down and severity of UUI has improved at 36 months compared to before treatment.

    Time frame: 36 months post-initial treatment

  17. Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.

    For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the health-related quality of life (HR-QOL) scale that consists of 13 questions. Each question asks how the patient's quality of life has been impacted. The patient rates the degree of impact on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 13 questions are added and converted to a 100-point scale. The HR-QOL score ranges from 0-100. A higher score is associated with a better quality of life. For this outcome measure, we report the change in the mean HR-QOL score for 36 months minus baseline. A positive change means that the quality of life became better by 36 months as compared to before treatment.

    Time frame: 36 months post-initial treatment

  18. Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.

    For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the symptom bother scale that consists of 6 questions. Each question asks about the level of bother related to a specific symptom (e.g. urgency, frequency, nighttime urination and leakage). The patient rates the degree of bother on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 6 questions are added and converted to a 100-point scale. The symptom bother score ranges from 0-100. A higher score is associated with a high degree of bother. For this outcome measure, we report the change in the mean symptom bother scale from 36 months to baseline. A negative change means that the degree of symptom bother decreased at 36 months compared to before treatment.

    Time frame: 36 months post-initial treatment

  19. Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months Post-initial Treatment.

    For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the health-related quality of life (HR-QOL) scale that consists of 13 questions. Each question asks how the patient's quality of life has been impacted. The patient rates the degree of impact on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 13 questions are added and converted to a 100-point scale. The HR-QOL score ranges from 0-100. A higher score is associated with a better quality of life. For this outcome measure, we report the change in the mean HR-QOL score for 6 months minus baseline. A positive change means that the quality of life became better by 6 months as compared to before treatment.

    Time frame: 6 months post-initial treatment

  20. Change in Number of Voids as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe urinary frequency (number of voids) and incontinence episodes. The change in number of voids over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of voids went down compared to baseline.

    Time frame: 36 months post-initial treatment

  21. Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of stress urinary incontinence occurrences). The change in number of stress urinary incontinence episodes over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of stress urinary incontinence events went down compared to baseline.

    Time frame: 6 months post-initial treatment

  22. Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of stress urinary incontinence occurrences). The change in number of stress urinary incontinence episodes over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of stress urinary incontinence events went down compared to baseline.

    Time frame: 36 months post-initial treatment

  23. Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of urge urinary incontinence events). The change in number of urge urinary incontinence events over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of urge urinary incontinence events went down compared to baseline.

    Time frame: 6 months post-initial treatment

  24. Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

    A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of urge urinary incontinence events). The change in number of urge urinary incontinence events over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of urge urinary incontinence events went down compared to baseline.

    Time frame: 36 months post-initial treatment

  25. Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 36 Months Post-initial Treatment.

    The GAD-7 is a self-reported questionnaire for screening and measuring severity of generalized anxiety disorder. There are 7 questions total asking how often the patient has been bothered by certain problems over the past 2 weeks. Each answer is scored on a scale from 0 = not at all to 3 = nearly every day. All scores are added up to calculate the total score which ranges from 0 - 21. Total scores greater than or equal to 10 indicate moderate anxiety and further assessment is recommended. In this outcome measure we report the change in GAD-7 score between 36 months and baseline. A negative number means a reduction in GAD-7 score and therefore a reduction in anxiety/depression at 36 months compared to before treatment.

    Time frame: 36 months post-initial treatment

  26. Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 36 Months Post-initial Treatment.

    The PHQ-8 is an eight-item questionnaire that measures the severity of depression symptoms over the past 2 weeks. For each of the questions, the patient is asked the rate how often they are bothered by a specific problem (e.g. sleep disturbance, fatigue, appetite change, low-self esteem, poor concentration). Each question is scored from 0 = not at all to 3 = nearly every day. The scores of each question are added together to form the total score, which ranges from 0 - 24. The higher the score, the more severe depressive symptoms are. A score of 10 or greater is commonly used to indicate the presence of clinically significant depressive symptoms. Here we report the change in score between 36 months and baseline. A negative number means there is a reduction in PHQ8 score at 36 months compared to before treatment and therefore a reduction in depression.

    Time frame: 36 months post-initial treatment

  27. Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 36 Months Post-initial Treatment.

    The FSFI consists of 6 subscales related to sexual desire (2 Qs scale 1 worst - 5 best), arousal (4Qs 0 worst - 5 best), lubrication (4Qs 0 worst-5 best), orgasm (3Qs 0 worst - 5 best), satisfaction ( 3Qs 0 worst - 5 best), and pain (3 Qs 0 worst - 5 best). Higher scores indicate higher sexual functioning. Scores range from 2-36. A score of 26.55 has been clinically selected as the cut-off for sexual dysfunction. Scores below this value indicate sexual dysfunction. The change is measured as the difference at 36 months minus baseline. A positive score means the sexual dysfunction symptoms are getting worse. Only people that had sexual activity were included.

    Time frame: 36 months post-initial treatment

  28. Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 36 Months Post-initial Treatment.

    A clean catch urine specimen will be collected at each visit. A positive urine dipstick test will have the presence of leukocytes and nitrites accompanied by symptoms (dysuria, bladder pain, and/or urinary frequency) and will be sent for a culture. A positive urine culture has the presence of bacterial growth. Only patients that reported recurrent UTI's - 4 or more in the past year (i.e. had 4 or more positive urine cultures in a year) at baseline with an occurrence of a positive urine culture after 6 months but before or at 36 months post-initial treatment will be counted.

    Time frame: 36 months post-initial treatment

  29. The Presence of Lactobacillus, Assessed by Vaginal Swab at 36 Months.

    A vaginal exam is completed at 36 months. In some cases the 36 month visit was completed remotely and thus a vaginal exam was not completed. Presence or absence of lactobacillus will be collected by the physician via a vaginal swab and assessed under the microscope of the patients that had a vaginal exam completed. This is the total number of patients positive for lactobacillus at 36 months.

    Time frame: 36 months post-initial treatment

  30. Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 36 Months.

    The Incontinence Quality of Life Questionnaire (I-QOL) is a validated tool to assess the impact of urinary incontinence problems. The I-QOL has 22 incontinent-specific quality of life items all having the following five-point ordinal response scale: 1= Extremely, 2= Quite a Bit, 3= Moderately, 4= A Little, and 5= Not at All. All 22 items are summed up, and the sum is converted to a 100-point scale. The range of the score is 0-100, with a high score indicating a better quality of life. In this outcome measure we report the change in the I-QOL score at 36 months minus the score at baseline. A positive score indicates that the quality of life improved at 36 months compared to before treatment.

    Time frame: 36 months post-initial treatment

07

Results

Posted Oct 16, 2024
Limitations and caveats
During the course of the study the COVID19 pandemic impacted follow up visits. There was a large number of participants that were lost to follow up or were withdrawn for various reasons. Thus the number of participants analyzed was reduced at the primary and secondary outcomes timepoints.

Participant flow

Participant flow — Overall Study
MilestonefCO2 Laser Therapy Group
Started100
Primary outcome81
End of study38
Completed38
Not completed62
Withdrew: Lost to follow-up33
Withdrew: Withdrawal by subject16
Withdrew: Lack of efficacy4
Withdrew: Physician decision1
Withdrew: Adverse event1
Withdrew: Non-compliance4
Withdrew: Patient received vaginal sling3

Outcome measures

PrimaryPatient Global Impression of Improvement (PGI-I) Score at 4 Weeks After Initial Treatment

PGI-I score is recorded 4 weeks after initial treatment completion. The PGI-I asks the patient to "check the box that best describes how your urinary and/or vaginal symptoms are now, compared with how you symptoms were before you began this study." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better", 2 is "Much Better, 3 is "A Little Bit Better", 4 is "No Change", 5 is "A Little Worse", 6 is "Much Worse", and 7 is "Very Much Worse". A score from 1 to 3 would indicate improvement.

Time frame:
4 weeks post-initial treatment
Reported as:
Mean · score on a scale
Patient Global Impression of Improvement (PGI-I) Score at 4 Weeks After Initial Treatment
score on a scalefCO2 Laser Therapy Group
Patient Global Impression of Improvement (PGI-I) Score at 4 Weeks After Initial Treatment2.675 ± 0.88
SecondaryChange in Patient Global Impression of Improvement (PGI-I) Score at 6 Months After Initial Treatment

The average change in patients' PGI-I scores from baseline to 6 months and 36 months post-treatment. The PGI-I asks the patient to "check the one number that best describes how your urinary tract condition is now compared with how it was before your treatment." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better" and 7 is "Very Much Worse". A lower score would represent improvement and a favorable outcome.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Patient Global Impression of Improvement (PGI-I) Score at 6 Months After Initial Treatment
score on a scalefCO2 Laser Therapy Group
Change in Patient Global Impression of Improvement (PGI-I) Score at 6 Months After Initial Treatment2.91 ± 1.09
SecondaryChange in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 6 Months Post-initial Treatment.

The Vaginal Health Inventory Score (VHIS) is an assessment tool, used by providers, to determine if vaginal atrophy is present. Providers perform a vaginal exam and give a score of 1-5 (abnormal to normal, respectively) on each of the following vaginal parameters: elasticity, secretion/fluid volume, vaginal pH, integrity of the epithelium, and lubrication/moisture of the vaginal wall. The total VHIS score is a sum of the individual scores of these 5 vaginal parameters. The minimum score is 5 and the maximum score is 25. A score of 5-14 indicates the presence of vaginal atrophy, while a score of 15-25 indicates normal healthy vaginal tissue. For this outcome measure we reported the change in VHIS between 6 months and baseline. A positive number means that vaginal tissue is healthier at 6 months compared to baseline.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 6 Months Post-initial Treatment.2.30 ± 4.75
SecondaryChange in Urinary Symptoms Specifically Stress Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.

The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the SUI score only (QUID-SUI). Patients are asked how often they leak urine in three different situations. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-SUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage in response to a stress event (e.g. cough, lifting, exercise). Here we report the change in QUID-SUI score from 6 months to baseline. A negative number means the QUID stress urinary incontinence score has gone down and severity of SUI his better at 6 months compared to baseline.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Urinary Symptoms Specifically Stress Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Urinary Symptoms Specifically Stress Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.-1.03 ± 2.33
SecondaryChange in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months After Initial Treatment.

For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the symptom bother scale that consists of 6 questions. Each question asks about the level of bother related to a specific symptom (e.g. urgency, frequency, nighttime urination and leakage). The patient rates the degree of bother on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 6 questions are added and converted to a 100-point scale. The symptom bother score ranges from 0-100. A higher score is associated with a high degree of bother. For this outcome measure, we report the change in the mean symptom bother scale from 6 months to baseline. A negative change means that the degree of symptom bother decreased at 6 months compared to before treatment.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months After Initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months After Initial Treatment.-12.63 ± 19.07
SecondaryChange in Number of Voids as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe urinary frequency (number of voids) and incontinence episodes. The change in number of voids over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of voids went down compared to baseline.

Time frame:
6 months post-initial treatment
Reported as:
Mean · number of voids
Change in Number of Voids as Recorded on Voiding Diary at 6 Months Post-initial Treatment.
number of voidsfCO2 Laser Therapy Group
Change in Number of Voids as Recorded on Voiding Diary at 6 Months Post-initial Treatment.-1.85 ± 4.49
SecondaryChange in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 6 Months Post-initial Treatment.

The FSFI consists of 6 subscales related to sexual desire (2 Qs scale 1 worst - 5 best), arousal (4Qs 0 worst - 5 best), lubrication (4Qs 0 worst-5 best), orgasm (3Qs 0 worst - 5 best), satisfaction ( 3Qs 0 worst - 5 best), and pain (3 Qs 0 worst - 5 best). Higher scores indicate higher sexual functioning. Scores range from 2-36. A score of 26.55 has been clinically selected as the cut-off for sexual dysfunction. Scores below this value indicate sexual dysfunction. The overall change is measured at 6 months minus baseline. A positive score means the sexual dysfunction symptoms are getting worse. Only people that had sexual activity were included.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 6 Months Post-initial Treatment.4.97 ± 5.25
SecondaryFrequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 6 Months Post-initial Treatment.

A clean catch urine specimen will be collected at each visit. A positive urine dipstick test will have the presence of leukocytes and nitrites accompanied by symptoms (dysuria, bladder pain, and/or urinary frequency) and will be sent for a culture. A positive urine culture has the presence of bacterial growth. Only patients that reported recurrent UTI's - 4 or more in the past year (i.e. had 4 or more positive urine cultures in a year) at baseline with an occurrence of a positive urine culture at or before 6 months post-initial treatment will be counted.

Time frame:
6 months post-initial treatment
Reported as:
Number · total number of positive urine cultures
Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 6 Months Post-initial Treatment.
total number of positive urine culturesfCO2 Laser Therapy Group
Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 6 Months Post-initial Treatment.3
SecondaryChange in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 6 Months Post-initial Treatment.

The GAD-7 is a self-reported questionnaire for screening and measuring severity of generalized anxiety disorder. There are 7 questions total asking how often the patient has been bothered by certain problems over the past 2 weeks. Each answer is scored on a scale from 0 = not at all to 3 = nearly every day. All scores are added up to calculate the total score which ranges from 0 - 21. Total scores greater than or equal to 10 indicate moderate anxiety and further assessment is recommended. In this outcome measure we report the change in GAD-7 score between 6 months and baseline. A negative number means a reduction in GAD-7 score and therefore a reduction in anxiety/depression at 6 months compared to before treatment.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 6 Months Post-initial Treatment.-0.09 ± 4.14
SecondaryChange in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 6 Months Post-initial Treatment.

The PHQ-8 is an eight-item questionnaire that measures the severity of depression symptoms over the past 2 weeks. For each of the questions, the patient is asked the rate how often they are bothered by a specific problem (e.g. sleep disturbance, fatigue, appetite change, low-self esteem, poor concentration). Each question is scored from 0 = not at all to 3 = nearly every day. The scores of each question are added together to form the total score, which ranges from 0 - 24. The higher the score, the more severe depressive symptoms are. A score of 10 or greater is commonly used to indicate the presence of clinically significant depressive symptoms. Here we report the change in score between 6 months and baseline. A negative number means there is a reduction in PHQ8 score at 6 months compared to before treatment and therefore a reduction in depression.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 6 Months Post-initial Treatment.-0.62 ± 4.26
SecondaryChange in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 6 Months.

The Incontinence Quality of Life Questionnaire (I-QOL) is a validated tool to assess the impact of urinary incontinence problems. The I-QOL has 22 incontinent-specific quality of life items. The 22 items are broken down into 3 subscales: Avoidance and Limiting Behaviors Score (8 of the 22 items), Psychosocial Impacts Score (9 of the 22 items), and Social Embarrassment Score (5 of the 22 items). Each question has a five-point ordinal response scale: 1= Extremely, 2= Quite a Bit, 3= Moderately, 4= A Little, and 5= Not at All. All 22 items are summed up, and the sum is converted to a 100-point scale. The range of the score is 0-100, with a high score indicating a better quality of life. In this outcome measure we report the change in the I-QOL score at 6 months minus the score at baseline. A positive score indicates that the quality of life improved at 6 months compared to before treatment.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 6 Months.
score on a scalefCO2 Laser Therapy Group
Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 6 Months.8.25 ± 14.74
SecondaryThe Presence of Lactobacillus, Assessed by Vaginal Swab at 6 Months.

A vaginal exam is completed at 6 months. In some cases the 6 month visit was completed remotely and thus a vaginal exam was not completed. Presence or absence of lactobacillus will be collected by the physician via a vaginal swab and assessed under the microscope of the patients that had a vaginal exam completed. This is the total number of patients positive for lactobacillus at 6 months.

Time frame:
6 months post-initial treatment
Reported as:
Count of participants · Participants
The Presence of Lactobacillus, Assessed by Vaginal Swab at 6 Months.
ParticipantsfCO2 Laser Therapy Group
The Presence of Lactobacillus, Assessed by Vaginal Swab at 6 Months.6
SecondaryChange in Patient Global Impression of Improvement (PGI-I) Score at 36 Months.

The average change in patients' PGI-I scores from baseline to 6 months and 36 months post-treatment. The PGI-I asks the patient to "check the one number that best describes how your urinary tract condition is now compared with how it was before your treatment." There are 7 possible responses ranging from 1 to 7, where 1 is "Very Much Better" and 7 is "Very Much Worse". A lower score would represent improvement and a favorable outcome.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Patient Global Impression of Improvement (PGI-I) Score at 36 Months.
score on a scalefCO2 Laser Therapy Group
Change in Patient Global Impression of Improvement (PGI-I) Score at 36 Months.2.74 ± 1.43
SecondaryChange in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 36 Month Post-initial Treatment.

The Vaginal Health Inventory Score (VHIS) is an assessment tool, used by providers, to determine if vaginal atrophy is present. Providers perform a vaginal exam and give a score of 1-5 (abnormal to normal, respectively) on each of the following vaginal parameters: elasticity, secretion/fluid volume, vaginal pH, integrity of the epithelium, and lubrication/moisture of the vaginal wall. The total VHIS score is a sum of the individual scores of these 5 vaginal parameters. The scale ranges from 5-25. A score of 5-14 indicates the presence of vaginal atrophy, while a score of 15-25 indicates normal/healthy vaginal tissue. For this outcome measure we reported the change in VHIS between 36 months and baseline. A positive number means that vaginal tissue is healthier at 36 months compared to baseline.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 36 Month Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Vaginal pH and Overall Vaginal Health on Physical Exam as Measured by the Vaginal Health Inventory Score (VHIS) at 36 Month Post-initial Treatment.0.77 ± 4.41
SecondaryChange in Urinary Symptoms, Specifically Stress Urinary Incontinence as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-inital Treatment.

The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the SUI score only (QUID-SUI). Patients are asked how often they leak urine in three different situations. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-SUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage in response to a stress event (e.g. cough, lifting, exercise). Here we report the change in QUID-SUI score from 36 months to baseline. A negative number means the QUID stress urinary incontinence score has gone down and severity of SUI his better at 36 months compared to baseline.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Urinary Symptoms, Specifically Stress Urinary Incontinence as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-inital Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Urinary Symptoms, Specifically Stress Urinary Incontinence as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-inital Treatment.-1.5 ± 2.84
SecondaryChange in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.

The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the UUI score only (QUID-UUI). Patients are asked how often they leak urine in three different situations related to urgency. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-UUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage due to urgency. Here we report the change in QUID-UUI score from 6 months to baseline. A negative number means the QUID urge urinary incontinence score has gone down and severity of UUI has improved at 6 months compared to before treatment.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 6 Months Post-initial Treatment.-1.54 ± 3.33
SecondaryChange in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-initial Treatment.

The Questionnaire for Urinary Incontinence Diagnosis (QUID) consists of 2 sections: section 1 are three questions related to stress urinary incontinence (SUI) and section 2 are three questions related to Urge Urinary Incontinence (UUI). This outcome measure is focused on the UUI score only (QUID-UUI). Patients are asked how often they leak urine in three different situations related to urgency. Responses range from 0 = none of the time, to 5 = all of the time. The total QUID-UUI score ranges from 0 - 15, with a higher score meaning more frequent urinary leakage due to urgency. Here we report the change in QUID-UUI score from 36 months to baseline. A negative number means the QUID urge urinary incontinence score has gone down and severity of UUI has improved at 36 months compared to before treatment.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Urinary Symptoms Specifically Urge Urinary Incontinence Score as Measured by the Questionnaire for Urinary Incontinence Diagnosis (QUID) at 36 Months Post-initial Treatment.-1.39 ± 2.48
SecondaryChange in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.

For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the health-related quality of life (HR-QOL) scale that consists of 13 questions. Each question asks how the patient's quality of life has been impacted. The patient rates the degree of impact on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 13 questions are added and converted to a 100-point scale. The HR-QOL score ranges from 0-100. A higher score is associated with a better quality of life. For this outcome measure, we report the change in the mean HR-QOL score for 36 months minus baseline. A positive change means that the quality of life became better by 36 months as compared to before treatment.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.7.77 ± 17.82
SecondaryChange in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.

For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the symptom bother scale that consists of 6 questions. Each question asks about the level of bother related to a specific symptom (e.g. urgency, frequency, nighttime urination and leakage). The patient rates the degree of bother on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 6 questions are added and converted to a 100-point scale. The symptom bother score ranges from 0-100. A higher score is associated with a high degree of bother. For this outcome measure, we report the change in the mean symptom bother scale from 36 months to baseline. A negative change means that the degree of symptom bother decreased at 36 months compared to before treatment.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Overactive Bladder (OAB) Symptoms, Specifically Symptom Bother as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 36 Months Post-initial Treatment.-13.16 ± 22.34
SecondaryChange in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months Post-initial Treatment.

For this outcome measure, we used the OAB-q SF, which consists of two scales assessing symptom bother and health-related quality of life (HR-QOL) in patients with OAB. In this outcome measure we specifically look at the health-related quality of life (HR-QOL) scale that consists of 13 questions. Each question asks how the patient's quality of life has been impacted. The patient rates the degree of impact on a 6-point scale with 1 = Not at all and 6 = A very great deal. The scores of the 13 questions are added and converted to a 100-point scale. The HR-QOL score ranges from 0-100. A higher score is associated with a better quality of life. For this outcome measure, we report the change in the mean HR-QOL score for 6 months minus baseline. A positive change means that the quality of life became better by 6 months as compared to before treatment.

Time frame:
6 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Overactive Bladder (OAB) Symptoms, Specifically Health-related Quality of Life (HR-QOL) as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) at 6 Months Post-initial Treatment.9.60 ± 15.45
SecondaryChange in Number of Voids as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe urinary frequency (number of voids) and incontinence episodes. The change in number of voids over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of voids went down compared to baseline.

Time frame:
36 months post-initial treatment
Reported as:
Mean · number of voids
Change in Number of Voids as Recorded on Voiding Diary at 36 Months Post-initial Treatment.
number of voidsfCO2 Laser Therapy Group
Change in Number of Voids as Recorded on Voiding Diary at 36 Months Post-initial Treatment.-3.05 ± 6.20
SecondaryChange in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of stress urinary incontinence occurrences). The change in number of stress urinary incontinence episodes over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of stress urinary incontinence events went down compared to baseline.

Time frame:
6 months post-initial treatment
Reported as:
Mean · number of stress incontinence events
Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.
number of stress incontinence eventsfCO2 Laser Therapy Group
Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.-0.26 ± 4.49
SecondaryChange in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of stress urinary incontinence occurrences). The change in number of stress urinary incontinence episodes over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of stress urinary incontinence events went down compared to baseline.

Time frame:
36 months post-initial treatment
Reported as:
Mean · number of stress incontinence events
Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.
number of stress incontinence eventsfCO2 Laser Therapy Group
Change in Number of Stress Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.-1.03 ± 3.82
SecondaryChange in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of urge urinary incontinence events). The change in number of urge urinary incontinence events over a 3 day period at 6 months minus baseline will be measured. A negative number means the number of urge urinary incontinence events went down compared to baseline.

Time frame:
6 months post-initial treatment
Reported as:
Mean · number of stress incontinence events
Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.
number of stress incontinence eventsfCO2 Laser Therapy Group
Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 6 Months Post-initial Treatment.-1.11 ± 5.45
SecondaryChange in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.

A 3-day voiding diary will be completed by the patient and evaluated to describe incontinence episodes (number of urge urinary incontinence events). The change in number of urge urinary incontinence events over a 3 day period at 36 months minus baseline will be measured. A negative number means the number of urge urinary incontinence events went down compared to baseline.

Time frame:
36 months post-initial treatment
Reported as:
Mean · number of stress incontinence events
Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.
number of stress incontinence eventsfCO2 Laser Therapy Group
Change in Number of Urge Urinary Incontinence Events as Recorded on Voiding Diary at 36 Months Post-initial Treatment.-1.11 ± 4.43
SecondaryChange in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 36 Months Post-initial Treatment.

The GAD-7 is a self-reported questionnaire for screening and measuring severity of generalized anxiety disorder. There are 7 questions total asking how often the patient has been bothered by certain problems over the past 2 weeks. Each answer is scored on a scale from 0 = not at all to 3 = nearly every day. All scores are added up to calculate the total score which ranges from 0 - 21. Total scores greater than or equal to 10 indicate moderate anxiety and further assessment is recommended. In this outcome measure we report the change in GAD-7 score between 36 months and baseline. A negative number means a reduction in GAD-7 score and therefore a reduction in anxiety/depression at 36 months compared to before treatment.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Mental Health Status as Measured by the Generalized Anxiety Disorder Questionnaire (GAD-7) at 36 Months Post-initial Treatment.-1.34 ± 4.47
SecondaryChange in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 36 Months Post-initial Treatment.

The PHQ-8 is an eight-item questionnaire that measures the severity of depression symptoms over the past 2 weeks. For each of the questions, the patient is asked the rate how often they are bothered by a specific problem (e.g. sleep disturbance, fatigue, appetite change, low-self esteem, poor concentration). Each question is scored from 0 = not at all to 3 = nearly every day. The scores of each question are added together to form the total score, which ranges from 0 - 24. The higher the score, the more severe depressive symptoms are. A score of 10 or greater is commonly used to indicate the presence of clinically significant depressive symptoms. Here we report the change in score between 36 months and baseline. A negative number means there is a reduction in PHQ8 score at 36 months compared to before treatment and therefore a reduction in depression.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Mental Health Status as Measured by the Patient Health Questionnaire (PHQ-8) at 36 Months Post-initial Treatment.-0.63 ± 4.20
SecondaryChange in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 36 Months Post-initial Treatment.

The FSFI consists of 6 subscales related to sexual desire (2 Qs scale 1 worst - 5 best), arousal (4Qs 0 worst - 5 best), lubrication (4Qs 0 worst-5 best), orgasm (3Qs 0 worst - 5 best), satisfaction ( 3Qs 0 worst - 5 best), and pain (3 Qs 0 worst - 5 best). Higher scores indicate higher sexual functioning. Scores range from 2-36. A score of 26.55 has been clinically selected as the cut-off for sexual dysfunction. Scores below this value indicate sexual dysfunction. The change is measured as the difference at 36 months minus baseline. A positive score means the sexual dysfunction symptoms are getting worse. Only people that had sexual activity were included.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 36 Months Post-initial Treatment.
score on a scalefCO2 Laser Therapy Group
Change in Sexual Function, Including Dyspareunia Symptoms, as Measured by the Female Sexual Function Inventory (FSFI) at 36 Months Post-initial Treatment.5.82 ± 4.26
SecondaryFrequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 36 Months Post-initial Treatment.

A clean catch urine specimen will be collected at each visit. A positive urine dipstick test will have the presence of leukocytes and nitrites accompanied by symptoms (dysuria, bladder pain, and/or urinary frequency) and will be sent for a culture. A positive urine culture has the presence of bacterial growth. Only patients that reported recurrent UTI's - 4 or more in the past year (i.e. had 4 or more positive urine cultures in a year) at baseline with an occurrence of a positive urine culture after 6 months but before or at 36 months post-initial treatment will be counted.

Time frame:
36 months post-initial treatment
Reported as:
Number · total number of positive urine cultures
Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 36 Months Post-initial Treatment.
total number of positive urine culturesfCO2 Laser Therapy Group
Frequency of Urinary Tract Infection (UTI) Occurrences, as Measured by a Positive Urine Culture Test at 36 Months Post-initial Treatment.3
SecondaryThe Presence of Lactobacillus, Assessed by Vaginal Swab at 36 Months.

A vaginal exam is completed at 36 months. In some cases the 36 month visit was completed remotely and thus a vaginal exam was not completed. Presence or absence of lactobacillus will be collected by the physician via a vaginal swab and assessed under the microscope of the patients that had a vaginal exam completed. This is the total number of patients positive for lactobacillus at 36 months.

Time frame:
36 months post-initial treatment
Reported as:
Count of participants · Participants
The Presence of Lactobacillus, Assessed by Vaginal Swab at 36 Months.
ParticipantsfCO2 Laser Therapy Group
The Presence of Lactobacillus, Assessed by Vaginal Swab at 36 Months.3
SecondaryChange in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 36 Months.

The Incontinence Quality of Life Questionnaire (I-QOL) is a validated tool to assess the impact of urinary incontinence problems. The I-QOL has 22 incontinent-specific quality of life items all having the following five-point ordinal response scale: 1= Extremely, 2= Quite a Bit, 3= Moderately, 4= A Little, and 5= Not at All. All 22 items are summed up, and the sum is converted to a 100-point scale. The range of the score is 0-100, with a high score indicating a better quality of life. In this outcome measure we report the change in the I-QOL score at 36 months minus the score at baseline. A positive score indicates that the quality of life improved at 36 months compared to before treatment.

Time frame:
36 months post-initial treatment
Reported as:
Mean · score on a scale
Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 36 Months.
score on a scalefCO2 Laser Therapy Group
Change in Life and Sexual Impact of Vulvovaginal Skin Symptoms as Measured by the Incontinence Quality of Life Questionnaire (I-QOL) at 36 Months.8.68 ± 13.78

Adverse events

Collected over 3 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
fCO2 Laser Therapy Group0/81 (0%)0/81 (0%)64/81 (79%)
Most frequent other events
Showing 10 of 33
Most frequent other events
EventfCO2 Laser Therapy Group
Vaginal bleedingReproductive system and breast disorders9/81
Urinary Tract InfectionInfections and infestations9/81
Bacterial vaginosisInfections and infestations6/81
Vaginal burning during treatmentReproductive system and breast disorders5/81
Vaginal yeast infectionInfections and infestations4/81
Increase urinary urgencyRenal and urinary disorders4/81
Pain during treatmentInjury, poisoning and procedural complications4/81
Discomfort with probe insertionInjury, poisoning and procedural complications4/81
Vaginal itchingReproductive system and breast disorders3/81
vaginal painReproductive system and breast disorders2/81

Baseline characteristics

The overall number enrolled was 100, however over the course of the study the number of participants that completed the study declined. 81 completed the 4 week follow up visit at the primary endpoint. The 6 and 36 month visits had a substantial decline in patient compliance and a high drop out rate. The final number of patients completing all visits was 38. Some visit activities were completed remotely and only questionnaires, diaries, and adverse events were collected.

Age, Categorical
Age, Categorical(Participants)fCO2 Laser Therapy Group
<=18 years0
Between 18 and 65 years84
>=65 years16
Sex: Female, Male
Sex: Female, Male(Participants)fCO2 Laser Therapy Group
Female100
Male0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)fCO2 Laser Therapy Group
American Indian or Alaska Native0
Asian1
Native Hawaiian or Other Pacific Islander0
Black or African American9
White90
More than one race0
Unknown or Not Reported0
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)fCO2 Laser Therapy Group
Hispanic or Latino2
Not Hispanic or Latino98
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)fCO2 Laser Therapy Group
United States100
08

Study locations

1 site
  • Corewell Health William Beaumont University Hospital
    Royal Oak, Michigan 48073, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03681678
Lead sponsor
Corewell Health East
Responsible party
Kenneth M Peters, MD (Chief Urology, Corewell Health East) — Principal investigator
First posted
Sep 24, 2018
Start date
Oct 8, 2018
Primary completion
Dec 15, 2022
Completion
Jun 10, 2025
Results posted
Oct 16, 2024
Last update
Aug 17, 2026

Study contacts

Kenneth Peters, MD
principal investigator · Corewell Health William Beaumont University Hospital

Oversight

Data monitoring committee
No
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 2026. You cannot join it, but the record below documents what was studied.

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