Assessment of Effectiveness and Safety of a Novel Pessary for the Non-Surgical Treatment of Pelvic Organ Prolapse

The purpose of this study is to evaluate the effectiveness, safety, function, and comfort of a novel vaginal pessary design for the treatment in women who suffer from of pelvic organ prolapse and who have already opted for non-surgical management. Results will be used to validate prior benchtop testing and to ensure the device performs as anticipated in the real-world environment and does not cause harm. Treatment intervention will be non-blinded to the patient and investigator. Patients will serve as their own controls and enter the treatment phase of the study after a 1-month washout period of using their current pessary. The primary outcome measure will be the change in the scores of the Pelvic Floor Distress Inventory-20 (PFDI-20), administered first during the washout period while still using their current pessary and then at the conclusion of the treatment phase with the study pessary. The PFDI-20 is a validated health-related quality of life instrument to assess the presence and bother of symptoms in women with pelvic floor dysfunction. For women with relatively mild pelvic floor symptoms, a minimal important change (MIC) of between 13.5 and 18.3 points in the PFDI-20 score can be considered clinically relevant. We plan to have at least 40 subjects complete the study. This provides power of .80 for a MIC equivalence limit of 17 points on the PFDI-20 scale. The safety outcome is the prevalence and severity of adverse events that patients experience using the study pessary compared to those experienced with their current pessary. Comparative measurements (in cm) of the most dependent compartment of prolapse in relation to the hymen when using the current and study pessary will be taken to objectively assess function. Comfort will be assessed using a Visual Analogue Scale (VAS - a 10cm linear continuum in which 0 represents no pain and 10 represents worst pain) administered with pessary insertion and removal. Other secondary outcome measures will include global patient satisfaction of the current and study pessary using VAS, percent of patients successfully fit with the study pessary, change in the Pelvic Floor Impact Questionnaire scores between current and study pessary use (the PFIQ is a separate health-related quality of life instrument designed to assess the life impact of pelvic floor symptoms in women with pelvic floor disorders), change in frequency of pessary removal for those patients who insert and remove their pessary outside of medical care (self-managers), and study dropout rates.

The study will take place over 3-4 visits (Visit 0, Visit 1, Visit 2, and Visit 3).

Visit 0 will involve screening, enrollment, and consent. A baseline physical exam will be conducted to assess for pre-existing vaginal adverse events (ecchymoses, abrasions, superficial cuts, erosions, or bleeding) associated with their current pessary use, as well as to assess the ability of their current pessary to support their prolapse by measuring the distance of the most dependent compartment of their prolapse to the hymen. This visit is routinely scheduled for all pessary users and not additional for those consenting to study participation. There will be a washout period where they continue use of their current pessary during which they will complete the PFDI-20, the Pelvic Floor Impact Questionnaire (PFIQ), and the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-IR). Patients who insert and remove their current pessary outside of medical care (self-managers) will track the frequency of removals.

Visit 1 will occur after one month, the conclusion of the washout period. Demographic and historical data will be extracted from the Electronic Medical Record (EMR) and supplemented by the patient as needed. Global patient satisfaction of the current pessary will be assessed using a Visual Analog Scale (VAS). The current pessary will be removed, physical exam will be repeated as in Visit 0, and the presence of perineal disruption associated current pessary removal will be noted. The patient will be fit with the study pessary (which will be used until the study is complete). A VAS will be used to assess the perceived discomfort with removal of the current pessary, and with insertion of the study pessary. For self-managers, teaching will be provided on the proper technique to insert and remove the study pessary and ease of their current pessary removal and reinsertion will be noted using VAS. This visit is additional for those electing to be in the study. A gift card will be offered to compensate for time and travel.

Visit 2 will be scheduled within 1-3 weeks of Visit 1. Visit 2 may be optional at the discretion of the study team. A member of the study team will call the subject ahead of the scheduled Visit 2 to review the subject's experience with the study pessary and adverse events. If the subject has not experienced any complications and the pessary has not dislodged, the study team and subject can decide to omit the in-person Visit 2. The purpose of this visit is to minimize unforeseeable risks associated with use of the study pessary and/or to refit a subject with a study pessary if the original one was expelled or could not be inserted during Visit 1. If Visit 2 occurs in-person, physical exam will be performed to assess for vaginal pathology (ecchymoses, abrasions, superficial cuts, erosions, granulation tissue or bleeding) or urinary retention related to the study pessary, and all adverse events will be recorded. The study pessary will be observed in situ for the presence of rotation and its ability to support prolapse by measuring the distance of the most dependent compartment of the subject's prolapse to the hymen, as well as the distance from the leading edge of the study pessary to the hymen. Those subjects who were not successfully fit with a study pessary in their first visit would be fit with a larger study pessary.