Pathways for Patient-centered Diagnosis and Management of Endometriosis-associated Deep Dyspareunia

Sponsor
BC Women's Hospital & Health Centre (Other)
Overall Status
Enrolling by invitation
CT.gov ID
NCT04370444
Collaborator
(none)
80
1
2
9.7
8.2

Study Details

Study Description

Brief Summary

The purpose of this study is to evaluate the acceptability and effectiveness of two tools that may help address the management of deep dyspareunia: 1) A phallus length reducer (PLR, brand name: Ohnut), consisting of 4 interconnected silicone rings worn externally over the penetrating object to reduce pain with deep penetration by allowing adjustable limitation of penetration depth, and 2) A vaginal insert for at home self-assessment of the extent and severity of deep dyspareunia.

Condition or Disease Intervention/Treatment Phase
  • Device: Phallus Length Reducer
  • Other: Self-assessment of dyspareunia
N/A

Detailed Description

Background: Endometriosis is a gynecological condition characterized by the abnormal growth of endometrial like tissue outside of the uterus. The condition affects approximately 10% of reproductive-age females and can cause various types of pain, including chronic pelvic pain and deep dyspareunia (pelvic pain with deep sexual intercourse). Research has shown that individuals with endometriosis and dyspareunia have significantly reduced sexual quality of life, lower self-esteem, and impaired sexual function. Qualitative research has also demonstrated that many individuals with dyspareunia feel guilty about their pain, and often continue to engage in intercourse even when the pain is severe.

Aims and Hypotheses:
  1. To measure the reduction in deep dyspareunia observed among people using the PLR with their partner. The investigators hypothesize that the PLR will be associated with a reduction in self-reported deep dyspareunia scores among participants randomized to the PLR intervention, compared to participants randomized to the waitlist control group. The measured reduction in deep dyspareunia will be used to power a future definitive trial.

  2. To assess the acceptability of the phallus length reducer (PLR) for participants with endometriosis and their partners. The investigators hypothesize that both partners will indicate the PLR is acceptable on the self-reported questionnaire.

  3. To explore whether an at-home assessment of dyspareunia is an acceptable and valid alternative to clinical measures. The investigators hypothesize that the at-home assessments of dyspareunia will be acceptable to participants and will yield results that are highly correlated with questionnaire-based and clinical assessments of this pain.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
80 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Other
Official Title:
Pathways for Patient-centered Diagnosis and Management of Endometriosis-associated Deep Dyspareunia: A Pilot Randomized Trial
Actual Study Start Date :
Mar 10, 2021
Anticipated Primary Completion Date :
Dec 31, 2021
Anticipated Study Completion Date :
Dec 31, 2021

Arms and Interventions

Arm Intervention/Treatment
Experimental: Experimental (PLR)

Participants will be given the OhNut Phallus Length Reducer (PLR) for use during the study period.

Device: Phallus Length Reducer
Phallus Length Reducer
Other Names:
  • OhNut
  • Other: Self-assessment of dyspareunia
    Use of a vaginal insert to self assess dyspareunia

    Other: Control (Waitlist)

    Participants will not have a PLR during the study period. They will be placed on a waitlist to receive the PLR at the end of the study period.

    Other: Self-assessment of dyspareunia
    Use of a vaginal insert to self assess dyspareunia

    Outcome Measures

    Primary Outcome Measures

    1. Acceptability of the phallus length reducer (PLR) [After 6 weeks of using the PLR]

      Acceptability of the PLR as measured via questionnaire using a 5 point likert scale (1 = most negative/ worst/ strongly disagree, 5 = most positive/ best/ strongly agree)

    Secondary Outcome Measures

    1. Severity of dyspareunia [Measured at baseline, before and after 6 weeks of using the PLR]

      Self reported on an 11-point numeric rating scale (0 being no pain, 10 being worst pain imaginable)

    2. Change in sexual function [Measured at baseline, before and after 6 weeks of using the PLR]

      Change in sexual function as measured by Female Sexual Function Index (FSFI). This a brief, self-administered questionnaire to assess key dimensions of sexual function in women. The scale consists of 19 items that assess sexual function over the past four weeks and are scored from 1 to 5 (with 1 being the lowest report of desire and 5 being the highest).

    3. Change in sexual distress [Measured at baseline, before and after 6 weeks of using the PLR]

      Change in sexual distress as measured in Female Sexual Distress Scale-Revised (FSDS-R) This is a self-administered measure of female personal distress associated with sexual dysfunction. There are 13 questions. The range for each question is 0 (Never) to 4 (Always).

    4. Change in level of general anxiety (GAD-7) [Measured at baseline, before and after 6 weeks of using the PLR]

      Change in level of general anxiety as measured using the General Anxiety Disorder - 7 questionnaire. There are 7 questions. The range for each question is 0 (not at all) to 4 (nearly every day).

    5. Change in level of general depression (PHQ-9) [Measured at baseline, before and after 6 weeks of using the PLR]

      Change in level of general depression as measured using the Patient Health Questionnaire- 9 questionnaire. There are 9 questions. The range for each question is 0 (not at all) to 4 (nearly every day).

    6. Acceptability of self-measurement of dyspareunia [After patient self-measurement of dyspareunia is complete (2 times during study)]

      Acceptability of self-measurement of dyspareunia will be measured via questionnaire using 5 point likert scale (1 = most negative/ worst/ strongly disagree, 5 = most positive/ best/ strongly agree)

    7. Validity of self-measurement of dyspareunia [Assessment and questionnaire administered 2 times, each one week apart, during the first 4 weeks of the study (to be assessed at week 2 and 3 of participant's menstrual cycle, which may vary)]

      Dyspareunia score from the self-measurement will be compared to records of dyspareunia scores from physician performed pelvic exams. (11 point scale, 0 being no pain, 10 being worst pain imaginable)

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    19 Years to 49 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:

    Patient

    • 19 to 49 years of age

    • Monogamous sexual partnership

    • Sexually active or not sexually active due to deep dyspareunia

    • Self-reported deep dyspareunia score ≥ 4/10

    • Sexual partner who is willing to participate

    • Willing to engage in penetrative sex at least once during the duration of the study

    Partner

    • 19 years of age or older

    • Sexually active with a patient participant who has consented to participate in this study

    Exclusion Criteria:

    Patient

    • Superficial dyspareunia score ≥ 4/10 (This is a potentially confounding variable; the PLR is not expected to affect introital pain)

    • Current use of a PLR

    • Inability to complete English-language questionnaires

    • GAD-7 score ≥ 15

    • PHQ-9 score ≥ 15

    • Intense fear/anxiety in anticipation of, during, or as a result of vaginal intercourse

    Partner

    • Current use of a PLR

    • Inability to complete English-language questionnaires

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 BC Women's Hospital Vancouver British Columbia Canada V6H 3N1

    Sponsors and Collaborators

    • BC Women's Hospital & Health Centre

    Investigators

    None specified.

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Paul Yong, Principal Investigator, BC Women's Hospital & Health Centre
    ClinicalTrials.gov Identifier:
    NCT04370444
    Other Study ID Numbers:
    • H19-00294
    First Posted:
    May 1, 2020
    Last Update Posted:
    Mar 12, 2021
    Last Verified:
    Mar 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Paul Yong, Principal Investigator, BC Women's Hospital & Health Centre
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Mar 12, 2021