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Alterations in the Vaginal Microenvironment Using a Non-pharmacological Intervention

Alterations in the Vaginal Microenvironment Using a Non-pharmacological Intervention for Breast Cancer Patients Treated With Aromatase Inhibitors

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03739983
Enrollment
2
Registered
2018-11-14
Start date
2019-11-19
Completion date
2020-03-10
Last updated
2021-10-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adherence, Medication

Brief summary

Breast cancer patients commonly take medications to reduce the risk of recurrence, including aromatase inhibitors (AIs). AIs can cause significant side effects that reduce patient adherence. Early discontinuation of AI therapy results in an increased risk of cancer recurrence and increased risk of breast cancer-related death. Common side effects include vaginal dryness and vulvovaginal atrophy leading to worsening sexual function. To increase AI adherence, the investigators will study a non-pharmaceutical Vaginal Renewal Program (VRP) aimed at stimulating nitric oxide production to consequently increase vaginal lubrication, and improve the symptoms of vulvovaginal atrophy.

Interventions

Therapeutic vibrating wand.

Sponsors

American Cancer Society, Inc.
CollaboratorOTHER
University of Wisconsin, Madison
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Intervention model description

Prospective Simon two-stage study design

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have completed active primary treatment * defined as surgery chemotherapy and/or radiation for the treatment of breast cancer * Does not include immunotherapy or other targeted therapies such as trastuzumab, CDK 4/6 or mTOR inhibitors * Have been receiving AIs for at least 6 months prior to enrollment * Plan to continue AIs for an additional 3 months * Amenorrhea for at least 12 months at enrollment * Participants must be able to read and write in English * Participants must have \< 2% superficial vaginal cells on cytologic evaluation

Exclusion criteria

* Pre-existing hypertonic pelvic floor dysfunction identified in the medical record * Unresolved or recurrent vaginismus identified in the medical record * Aversion to touching one's own body, including genitals, or using vibration therapy on the genitals * Currently receiving estrogen therapy, including topical and/or systemic estrogens * Have received estrogen therapy within 6 months of study enrollment, including topical and/or systemic estrogens * Any surgical procedure to the vagina or vulva, excluding office biopsies, within the previous 12 months * Receipt of pelvic or vaginal or vulvar radiation therapy within the 12 months prior to enrollment or if the subject is anticipated to receive radiation targeted to any of these 3 locations within 6 months following enrollment * Any use of the VRP off study within the last 6 months

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Superficial Vaginal Cellsup to 12 weeksThe investigators expect the percentage of superficial vaginal cells to be greater at the post-intervention time point when compared to the pre-intervention time point. If the percentage of superficial vaginal cells is ≥ 4% following the intervention, then the response will be considered positive.

Secondary

MeasureTime frameDescription
Change in Vaginal pHup to 12 weeksChanges in the vaginal pH will be analyzed to determine the extent to which the changes correlate with changes in the primary outcome and with patient reported outcomes. Given the longitudinal nature of the study, linear and generalized linear mixed effects models will be fit to the data gathered. The restricted maximum likelihood (REML) criterion will be used and 95% semi-parametrically bootstrapped confidence intervals will be obtained for all parameters. All statistical analyses will be conducted using R (R Core Team 2014).
Patient Reported Outcomes: Number of Subjects With Improved Anxietyup to 12 weeksNumber of subjects with improved anxiety outcomes per over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Emotional Distress - Anxiety scale measures patient perceived changes in anxiety and includes 8 questions that they answer about their emotional state in the past 7 days. Descriptive answers are scored from 1 (never) to 5 (always). The total possible range of scores is from 8-40, with higher scores indicating a worse outcome.
Patient Reported Outcomes: Number of Subjects With Improved Depressionup to 12 weeksNumber of subjects with improved depression outcomes over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Emotional Distress - Depression scale measures patient perceived changes in depression and includes 8 questions that they answer about their emotional state in the past 7 days. Descriptive answers are scored from 1 (never) to 5 (always). The total possible range of scores is from 8-40, with higher scores indicating a worse outcome.
Patient Reported Outcomes: Number of Subjects With Improved Global Healthup to 12 weeksNumber of subjects with improved global health over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Global Health scale measures patient perceived changes in health and includes 10 questions that they answer about their perceived health in the past 7 days. Higher scores indicate a higher perceived level of overall health.
Patient Reported Outcomes: Number of Subjects With Improved Sex Lifeup to 12 weeksNumber of subjects with improved sex life over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Global Satisfaction with Sex Life scale measures patient perceived changes in the satisfaction of their sex life and includes 7 questions that they answer about their perceived state. Descriptive answers include 'Not at all', 'A little bit', 'Somewhat', 'Quite a bit', or 'Very', and will be summarized with descriptive statistics.
Patient Reported Outcomes: Number of Subjects With Improved Sexual Function Outcomesup to 12 weeksNumber of subjects with improved sexual function outcomes over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Sexual Function Profile scale measures patient perceived changes in sexual function and includes 10 questions that they answer about their functional state. Descriptive answers include 'Not at all', 'A little bit', 'Somewhat', 'Quite a bit', or 'Very', and will be summarized with descriptive statistics.

Other

MeasureTime frameDescription
Adherence to AI Therapyup to 12 weeksAdherence to AI therapy will be determined using patient-reported logs.

Countries

United States

Participant flow

Recruitment details

Participants were recruited with the help of the University of Wisconsin Carbone Cancer Center in November and December 2019. Recruitment was suspended in March 2020 due to the COVID-19 pandemic.

Participants by arm

ArmCount
VRP Therapy
All subjects on this study will receive the Vaginal Renewal Program intervention. Enrolled subjects will receive inperson instruction on how to perform the VRP. Subjects will be encouraged to use the device for 3-4 days per week for 5 minutes at a time. Vaginal Renewal Program: Therapeutic vibrating wand.
2
Total2

Baseline characteristics

CharacteristicVRP Therapy
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
2 Participants
Region of Enrollment
United States
2 participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 2
other
Total, other adverse events
2 / 2
serious
Total, serious adverse events
0 / 2

Outcome results

Primary

Percentage of Superficial Vaginal Cells

The investigators expect the percentage of superficial vaginal cells to be greater at the post-intervention time point when compared to the pre-intervention time point. If the percentage of superficial vaginal cells is ≥ 4% following the intervention, then the response will be considered positive.

Time frame: up to 12 weeks

Population: End of study samples unavailable, decision was made not to analyze primary outcome as it was not powered to produce meaningful results.

Secondary

Change in Vaginal pH

Changes in the vaginal pH will be analyzed to determine the extent to which the changes correlate with changes in the primary outcome and with patient reported outcomes. Given the longitudinal nature of the study, linear and generalized linear mixed effects models will be fit to the data gathered. The restricted maximum likelihood (REML) criterion will be used and 95% semi-parametrically bootstrapped confidence intervals will be obtained for all parameters. All statistical analyses will be conducted using R (R Core Team 2014).

Time frame: up to 12 weeks

Population: No data to analyze.

Secondary

Patient Reported Outcomes: Number of Subjects With Improved Anxiety

Number of subjects with improved anxiety outcomes per over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Emotional Distress - Anxiety scale measures patient perceived changes in anxiety and includes 8 questions that they answer about their emotional state in the past 7 days. Descriptive answers are scored from 1 (never) to 5 (always). The total possible range of scores is from 8-40, with higher scores indicating a worse outcome.

Time frame: up to 12 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
VRP TherapyPatient Reported Outcomes: Number of Subjects With Improved Anxiety1 Participants
Secondary

Patient Reported Outcomes: Number of Subjects With Improved Depression

Number of subjects with improved depression outcomes over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Emotional Distress - Depression scale measures patient perceived changes in depression and includes 8 questions that they answer about their emotional state in the past 7 days. Descriptive answers are scored from 1 (never) to 5 (always). The total possible range of scores is from 8-40, with higher scores indicating a worse outcome.

Time frame: up to 12 weeks

Population: only 1 participant completed this survey

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
VRP TherapyPatient Reported Outcomes: Number of Subjects With Improved Depression0 Participants
Secondary

Patient Reported Outcomes: Number of Subjects With Improved Global Health

Number of subjects with improved global health over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Global Health scale measures patient perceived changes in health and includes 10 questions that they answer about their perceived health in the past 7 days. Higher scores indicate a higher perceived level of overall health.

Time frame: up to 12 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
VRP TherapyPatient Reported Outcomes: Number of Subjects With Improved Global Health0 Participants
Secondary

Patient Reported Outcomes: Number of Subjects With Improved Sex Life

Number of subjects with improved sex life over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Global Satisfaction with Sex Life scale measures patient perceived changes in the satisfaction of their sex life and includes 7 questions that they answer about their perceived state. Descriptive answers include 'Not at all', 'A little bit', 'Somewhat', 'Quite a bit', or 'Very', and will be summarized with descriptive statistics.

Time frame: up to 12 weeks

Population: Incomplete data, unable to evaluate.

Secondary

Patient Reported Outcomes: Number of Subjects With Improved Sexual Function Outcomes

Number of subjects with improved sexual function outcomes over baseline. The PROMIS (Patient Reported Outcomes Measurement Information System) Sexual Function Profile scale measures patient perceived changes in sexual function and includes 10 questions that they answer about their functional state. Descriptive answers include 'Not at all', 'A little bit', 'Somewhat', 'Quite a bit', or 'Very', and will be summarized with descriptive statistics.

Time frame: up to 12 weeks

Population: Incomplete data, unable to evaluate.

Other Pre-specified

Adherence to AI Therapy

Adherence to AI therapy will be determined using patient-reported logs.

Time frame: up to 12 weeks

Population: No data to analyze

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026