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Cross-Shaped Vaginal Pessary for Pelvic Organ Prolapse

Effectiveness and Safety of a Novel Volumetric Cross-Shaped Vaginal Pessary for the Management of Pelvic Organ Prolapse: A Prospective Multicenter Within-Subject Comparison Study

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07554651
Acronym
CROSS-PES
Enrollment
51
Registered
2026-04-28
Start date
2024-09-01
Completion date
2025-06-30
Last updated
2026-05-06

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

Conditions

Pelvic Organ Prolapse, Vaginal Prolapse

Keywords

vaginal pessary, pelvic floor disorders, quality of life, conservative treatment, cross-shaped pessary, volumetric pessary

Brief summary

This prospective multicenter single-arm study evaluates the effectiveness and safety of a novel volumetric cross-shaped vaginal pessary in women with pelvic organ prolapse who had prior experience using a traditional vaginal pessary. Each participant serves as her own control by comparing outcomes after fitting of the cross-shaped pessary with documented baseline outcomes during prior traditional pessary use.

Detailed description

Women aged 18 years and older with pelvic organ prolapse stage II or higher and at least 12 weeks of prior traditional pessary use were enrolled at five Ukrainian medical centers. At baseline, the previous pessary was replaced with a volumetric cross-shaped vaginal pessary made of medical-grade silicone. Follow-up assessments were performed at approximately 1 month, 3 months, and 6 months. Assessments included pelvic organ prolapse quantification, Baden-Walker grading, Pelvic Floor Distress Inventory-20, Pelvic Floor Impact Questionnaire-7, pain by visual analogue scale, Patient Global Impression measures, continuation status, patient preference, and adverse events.

Interventions

DEVICEVolumetric Cross-Shaped Vaginal Pessary

A medical-grade silicone vaginal pessary consisting of two intersecting closed rings arranged at approximately right angles around a shared center of symmetry, forming a three-dimensional cross-shaped structure intended to provide multi-vector support for pelvic organ prolapse. The pessary is fitted by a trained gynecologist and participants receive standardized instructions for self-removal, reinsertion, and hygiene.

Sponsors

Dnipro State Medical University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Masking description

No masking was used because the investigational pessary is visibly and physically distinct from traditional vaginal pessary types.

Eligibility

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

Inclusion criteria

* Female participants aged 18 years or older * Pelvic organ prolapse stage II or higher in any compartment * Current use of a traditional vaginal pessary for at least 12 consecutive weeks before enrollment * Willing and able to provide written informed consent * Able to attend scheduled follow-up visits or participate in telephone interviews

Exclusion criteria

* Active vaginal or pelvic infection at enrollment * Pregnancy or planned pregnancy during the study period * History of pelvic radiation therapy * Severe vaginal atrophy with active erosion preventing pessary use * Planned surgical treatment for pelvic organ prolapse during the study period * Cognitive impairment or psychiatric condition precluding informed consent or protocol compliance * Known allergy to silicone

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Pelvic Floor Distress Inventory-20 Score at 3 MonthsBaseline and 3 monthsThe Pelvic Floor Distress Inventory-20 is a validated 20-item questionnaire for pelvic floor symptom distress. Scores range from 0 to 300, with higher scores indicating greater symptom distress. Change from baseline to 3 months is analyzed.

Secondary

MeasureTime frameDescription
Device Continuation Rate at 6 Months6 monthsProportion of participants continuing use of the cross-shaped vaginal pessary at 6 months.
Change From Baseline in Pelvic Floor Impact Questionnaire-7 Score at 3 and 6 MonthsBaseline, 3 months, and 6 monthsThe Pelvic Floor Impact Questionnaire-7 is a validated 7-item questionnaire assessing the impact of pelvic floor disorders on activities, relationships, and emotions. Scores range from 0 to 300, with higher scores indicating greater impact.
Change From Baseline in Pelvic Organ Prolapse Quantification Stage at 1, 3, and 6 MonthsBaseline, 1 month, 3 months, and 6 monthsPelvic organ prolapse stage is assessed using the Pelvic Organ Prolapse Quantification system.
Change From Baseline in Baden-Walker Grade at 1, 3, and 6 MonthsBaseline, 1 month, 3 months, and 6 monthsPelvic organ prolapse grade is assessed using the Baden-Walker grading system.
Change From Baseline in Pain Visual Analogue Scale Score at 1, 3, and 6 MonthsBaseline, 1 month, 3 months, and 6 monthsPessary-related discomfort is assessed using a 10-cm visual analogue scale from 0, no pain, to 10, worst imaginable pain.
Patient Global Impression of Improvement at 3 and 6 Months3 months and 6 monthsPatient Global Impression of Improvement is assessed using a 7-point Likert scale ranging from very much better to very much worse.
Patient Global Impression of Severity at 3 and 6 Months3 months and 6 monthsPatient Global Impression of Severity is assessed using a 4-point Likert scale from no problems to severe problems.
Patient Preference for Cross-Shaped Pessary at 6 Months6 monthsPatient preference for the cross-shaped pessary compared with the previous traditional pessary is assessed by structured telephone interview.
Incidence of Device-Related Adverse Events Through 6 MonthsThrough 6 monthsAdverse events include vaginal discharge, vaginal erosion or abrasion, bleeding, pain, urinary symptoms, pessary expulsion, infection, fistula formation, and other unanticipated events. Events are summarized by type, severity, and relationship to the device.

Countries

Ukraine

Contacts

PRINCIPAL_INVESTIGATORMykhailo V. Medvediev, MD, PhD, DSc

Dnipro State Medical University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 7, 2026