Clinical trial Recruiting at 2 sites Phase 3 Interventional Ages 18 to 70 Women only

Non-surgical treatment for women with pelvic organ prolapse and bowel-emptying problems

Official title: Evaluation of Complex (Physical Therapy and Diet) Treatment of Functional Defecatory Disorders in Females With Pelvic Organ Prolapse

Run by Federal State Budgetary Scientific Institution · NCT04547816 · Data updated 2026-11-12

This will test whether a combined non-surgical program—tibial nerve stimulation, biofeedback, pelvic floor exercises, and diet changes—can improve bowel-emptying symptoms in women with mild-to-moderate pelvic organ prolapse.

More Pelvic Floor Disorders trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 70 Years
SexWomen only
Enrollment100 (estimated)
SponsorFederal State Budgetary Scientific Institution
Government
Locations2 sites (Moscow and 1 other locations)
StatusRecruiting
StartedJuly 1, 2020
Main results expectedDecember 31, 2025
Study endsMay 31, 2026
Registry record updatedAugust 3, 2025
Trial IDNCT04547816 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Women with grade I–II rectocele (with or without internal rectal intussusception) who meet Rome IV criteria for functional defecatory disorders and have confirmation on high-resolution anorectal manometry are the intended participants.

Probably not a fit

Women with grade III rectocele, significant internal genital prolapse, prior abdominal or gynecologic surgeries that affect bowel function, major cardiovascular disease, or those starting medications that alter rectal motility are unlikely to benefit or are excluded.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Pelvic organ prolapse can produce anatomical changes that contribute to difficulty with bowel emptying, and surgery is often recommended but not always possible. This Phase 3 interventional study delivers a multimodal conservative program combining tibial neuromodulation, biofeedback therapy, targeted pelvic floor muscle training, and dietary modification for women with rectocele grade I–II and functional defecatory disorders confirmed by high-resolution anorectal manometry. Participants will undergo baseline physiological testing and symptom assessment, receive the combined therapies, and be followed for changes in anorectal function and symptoms. The study aims to determine whether treating the functional component can reduce symptoms and potentially avoid or delay surgical intervention.

Why it matters

Potential benefit: If effective, the treatment could reduce constipation and straining, improve quality of life, and help some women avoid or postpone surgery.

How similar studies have gone: Prior studies of biofeedback and tibial neuromodulation have shown benefit for functional defecation disorders in general, but combining these approaches specifically in women with anatomical prolapse has been less well tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Willingness to participate (signed informed consent form)
* Females with rectocele I-II grade or rectocele I-II grade and internal rectal invagination and functional defecatory disorders (per Rome IV guidelines) confirmed on the basis of complex examination including high-resolution anorectal manometry

Exclusion Criteria:

* rectocele III grade;
* internal genitals prolapse;
* history of abdominal or pelvic surgery that may impact bowel motility (excluding non-complicated appendectomy or laparoscopic cholecystectomy);
* gynecological surgery that may influence sensory or reservoir function of rectum;
* history of major cardiovascular events, or presence of current conditions that in case of participation of the patient in the study may put her at risk of exacerbation or complication;
* start of any new concomitant medication with mechanisms of action that influence rectal motility, sensory function, muscle tone and/or contractility
* inability to understand and/or follow the instructions to perform all the procedures required per protocol
* general condition of the patient that make her ineligible by the discretion of the investigator

Where it's running

  • Federal State Budgetary Scientific Institution "Federal Research Centre of Nutrition, Biotechnology
    Moscow, Russia
    Recruiting
  • Federal Research Center of Coloproctology
    Moscow, Russia
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.