Cross-Shaped Vaginal Pessary for Pelvic Organ Prolapse
CROSS-PES
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
1 other identifier
interventional
51
1 country
5
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Sep 2024
Shorter than P25 for not_applicable
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2025
CompletedFirst Submitted
Initial submission to the registry
April 21, 2026
CompletedFirst Posted
Study publicly available on registry
April 28, 2026
CompletedMay 6, 2026
April 1, 2026
7 months
April 21, 2026
April 29, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change From Baseline in Pelvic Floor Distress Inventory-20 Score at 3 Months
The 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.
Baseline and 3 months
Secondary Outcomes (9)
Device Continuation Rate at 6 Months
6 months
Change From Baseline in Pelvic Floor Impact Questionnaire-7 Score at 3 and 6 Months
Baseline, 3 months, and 6 months
Change From Baseline in Pelvic Organ Prolapse Quantification Stage at 1, 3, and 6 Months
Baseline, 1 month, 3 months, and 6 months
Change From Baseline in Baden-Walker Grade at 1, 3, and 6 Months
Baseline, 1 month, 3 months, and 6 months
Change From Baseline in Pain Visual Analogue Scale Score at 1, 3, and 6 Months
Baseline, 1 month, 3 months, and 6 months
- +4 more secondary outcomes
Study Arms (1)
Cross-Shaped Vaginal Pessary
EXPERIMENTALParticipants with pelvic organ prolapse and prior traditional pessary use are fitted with a volumetric cross-shaped vaginal pessary and followed for 6 months.
Interventions
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.
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
City Clinical Hospital No. 6, Dnipro City Council
Dnipro, Ukraine
Clinical Hospital of Emergency Medical Care, Dnipro City Council
Dnipro, Ukraine
City Out-Patient Clinic No. 18, Kharkiv City Council
Kharkiv, Ukraine
Regional Clinical Hospital, Poltava Regional Council
Poltava, Ukraine
State Interdistrict Screening Center
Sheptytskyi, Ukraine
Related Publications (4)
Barber MD, Walters MD, Bump RC. Short forms of two condition-specific quality-of-life questionnaires for women with pelvic floor disorders. American Journal of Obstetrics and Gynecology. 2005;193(1):103-113.
BACKGROUNDBump RC, Mattiasson A, Bo K, et al. The standardization of terminology of female pelvic organ prolapse and pelvic floor dysfunction. American Journal of Obstetrics and Gynecology. 1996;175(1):10-17.
BACKGROUNDvan der Vaart LR, Vollebregt A, Milani AL, et al. Effect of pessary vs surgery on patient-reported improvement in women with symptomatic pelvic organ prolapse: the PEOPLE randomized clinical trial. JAMA. 2022;328(23):2312-2323.
BACKGROUNDHagen S, Glazener C, Sinclair L, et al. Clinical effectiveness of vaginal pessary self-management vs clinic-based care for pelvic organ prolapse: the TOPSY randomised controlled superiority trial. EClinicalMedicine. 2023;66:102326.
BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mykhailo V. Medvediev, MD, PhD, DSc
Dnipro State Medical University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Masking Details
- No masking was used because the investigational pessary is visibly and physically distinct from traditional vaginal pessary types.
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor and Head, Department of Obstetrics and Gynecology
Study Record Dates
First Submitted
April 21, 2026
First Posted
April 28, 2026
Study Start
September 1, 2024
Primary Completion
March 31, 2025
Study Completion
June 30, 2025
Last Updated
May 6, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share