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Prospective Randomized Controlled Trial of Obstructed Defecation Surgery

Prospective Randomized Controlled Trial Comparing Transvaginal Rectopexy and Ventral Mesh Rectopexy for Obstructed Defecation in Pelvic Organ Prolapse (PROD Trial)

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05747027
Acronym
PROD
Enrollment
15
Registered
2023-02-28
Start date
2024-05-16
Completion date
2025-05-30
Last updated
2025-07-15

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

Conditions

Obstructed Defecation, Pelvic Organ Prolapse

Keywords

Rectopexy, Transvaginal rectopexy, Laparoscopic ventral rectopexy

Brief summary

Obstructive defecatory syndrome (ODS) or inability to completely empty bowel is characterized by a combination of straining, incomplete evacuation, and the use of digital manipulation with bowel movement. This is a common condition with estimated incidence of 15-20% in the adult female population. Laparoscopic abdominal ventral rectopexy is an established surgical technique aimed at restoring rectal support in women with this condition. It is the most common surgery used nowadays to treat ODS. Transvaginal sacrospinous rectopexy, is an innovative procedure which has been shown to be safe and effective in the treatment of stool entrapment. Currently it is unknown whether one of the procedures mentioned is superior to the other regarding surgical outcomes and patient experience. The purpose of this research is to compare the outcomes of these two procedures considering their efficacy to improve symptoms. During the study, participants will be randomized to undergo one of two procedures for treatment of inability to completely empty their bowel and/or rectal prolapse: 1) laparoscopic abdominal ventral rectopexy; 2) transvaginal sacrospinous rectopexy. Following the procedure, participants will be asked to return to the office for a follow-up visit 2-weeks, 2-, 12- and 24-months after the surgery. During each follow-up visit participants will undergo symptom evaluation, pelvic exam and transvaginal pelvic ultrasound to evaluate surgical success.

Interventions

PROCEDURELaparoscopic abdominal ventral rectopexy

Laparoscopic abdominal ventral rectopexy is an established surgical technique used to restore rectal support in women with obstructive defecatory syndrome (ODS). It is the most common surgery used to treat ODS. It involves a series of small cuts in the abdomen and the use of mesh to hold the rectum in the correct position.

PROCEDURETransvaginal sacrospinous rectopexy

Transvaginal sacrospinous rectopexy is an innovative procedure which has shown to be safe and effective in the treatment of stool entrapment. This is a mesh-free and vaginal route procedure.

Sponsors

Weill Medical College of Cornell University
CollaboratorOTHER
University of Pittsburgh
CollaboratorOTHER
Endeavor Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

The study surgeon is providing clinical care to enrolled subjects, thus masking the surgeon to treatment allocation or subject symptoms is not practical or feasible, other than the allocation concealment prior to surgical randomization. Given the surgical procedure requires a transvaginal or abdominal incision, it is clinically not possible to mask the participant or other research personnel.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Female, between the age of 18 and 80 2. OD symptoms as indicated by an affirmative response to either questions 7, 8 or 14 of the Pelvic Floor Distress Inventory (PFDI): 1. Do you feel you need to strain too hard to have a bowel movement? 2. Do you feel you have not completely emptied your bowels at the end of a bowel movement? 3. Does part of your bowel ever pass through the rectum and bulge outside during or after a bowel movement? 3. Rectal hypermobility defined as a compression ratio greater than 50% according to ultrasound 4. Patient planning on undergoing surgery for the repair of pelvic organ prolapse within the next 12 months 5. Patient who is not pregnant and does not intend to become pregnant in the next 2 years 6. Available for 24-months of follow-up 7. Stated willingness to comply with all study procedures and availability for the duration of the study 8. Able to complete study assessments, per clinician judgment 9. Able and willing to provide independent written informed consent 10. Stable cardiovascular and respiratory status to meet candidacy in vaginal or laparoscopic surgeries

Exclusion criteria

1. Contraindication to abdominal and transvaginal rectopexy in the opinion of the treating surgeon 2. History of previous surgery that included any type of surgery for rectal prolapse 3. Pelvic pain or dyspareunia due to levator ani spasm that would preclude a PMT program 4. Previous adverse reaction to synthetic mesh 5. Current cytotoxic chemotherapy or current or history of pelvic radiation therapy within 12 months 6. History of two inpatient hospitalizations for medical comorbidities in the previous 12 months

Design outcomes

Primary

MeasureTime frameDescription
Degree of Rectal Hypermobility Measured Via Ultrasound24 months post-operativelyThe degree of rectal hypermobility measured via ultrasound (i.e. compression ratio).

Secondary

MeasureTime frameDescription
Postoperative Pain Measured by Pain Medication Use24 months post-operativelyParticipants will complete an assessment of pain medication use.
Postoperative Functional Activity Level24 months post-operativelyParticipants will complete the Activity Assessment Scale which measures functional activity. The activity level will be measured on a scale of no difficulty, a little difficulty, some difficulty, a lot of difficulty, not able to do it, and did not do it for other reasons.
Global Improvement in Bladder Function24 months post-operativelyParticipants will complete the Patient Global Impression of Improvement. The improvement will be measured on a scale of very much better, much better, a little better, no change, a little worse, much worse, and very much worse.
Pelvic Floor Distress Inventory (PFDI) - POPDI24 months post-operativelyAs a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete prolapse symptoms assessments using pelvic organ prolapse distress inventory (POPDI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.
Pelvic Floor Distress Inventory (PFDI) - CRADI24 months post-operativelyAs a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete colorectal symptoms assessments using colorectal anal distress inventory (CRADI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.
Postoperative Pain Measured by Pain Scale24 months post-operativelyParticipants will complete the pain scale. No pain will indicate the best outcome whereas the most intense pain imaginable will indicate the worst outcome.
Quality of Life Measured by PFIQ24 months post-operativelyParticipants will complete pelvic floor impact questionnaire (PFIQ), a condition-specific health-related quality of life questionnaire. The measurement will be on a scale of 0, not at all, to 3, quite a bit. Higher scores indicate greater impact.
Quality of Life Measured by SF-3624 months post-operativelyParticipants will also complete short form health survey (SF-36), which measures eight scales: physical functioning (PF), role physical (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role emotional (RE), and mental health (MH). Higher scores indicate better health status.
Quality of Life Measured by EQ-5D24 months post-operativelyParticipants will complete EuroQol-5D (EQ-5D), an instrument that evaluates quality of life on five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The measurement will be on a scale of 1 to 5.
Pelvic Muscle Strength24 months post-operativelyParticipants will complete the Brink Scale, a digital assessment of pelvic floor muscle strength. It consists of 3 separate 4-point rating scales for pressure, vertical finger displacement, and duration.
Pelvic Floor Distress Inventory (PFDI) - UDI24 months post-operativelyAs a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete urinary symptoms assessments using urinary distress inventory (UDI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.

Countries

United States

Participant flow

Participants by arm

ArmCount
Laparoscopic Abdominal Ventral Rectopexy
Laparoscopic abdominal ventral rectopexy: Laparoscopic abdominal ventral rectopexy is an established surgical technique used to restore rectal support in women with obstructive defecatory syndrome (ODS). It is the most common surgery used to treat ODS. It involves a series of small cuts in the abdomen and the use of mesh to hold the rectum in the correct position.
5
Transvaginal Sacrospinous Rectopexy
Transvaginal sacrospinous rectopexy: Transvaginal sacrospinous rectopexy is an innovative procedure which has shown to be safe and effective in the treatment of stool entrapment. This is a mesh-free and vaginal route procedure.
6
Unassigned
Due to the early termination of the study, some of the enrolled participants remained unassigned.
4
Total15

Baseline characteristics

CharacteristicLaparoscopic Abdominal Ventral RectopexyTransvaginal Sacrospinous RectopexyUnassignedTotal
Age, Continuous66.4 years
STANDARD_DEVIATION 6.5
56.7 years
STANDARD_DEVIATION 8.9
59.5 years
STANDARD_DEVIATION 12.4
60.7 years
STANDARD_DEVIATION 9.6
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants6 Participants4 Participants15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants6 Participants3 Participants13 Participants
Sex: Female, Male
Female
5 Participants6 Participants4 Participants15 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 60 / 4
other
Total, other adverse events
0 / 50 / 60 / 4
serious
Total, serious adverse events
0 / 50 / 60 / 4

Outcome results

Primary

Degree of Rectal Hypermobility Measured Via Ultrasound

The degree of rectal hypermobility measured via ultrasound (i.e. compression ratio).

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Global Improvement in Bladder Function

Participants will complete the Patient Global Impression of Improvement. The improvement will be measured on a scale of very much better, much better, a little better, no change, a little worse, much worse, and very much worse.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Pelvic Floor Distress Inventory (PFDI) - CRADI

As a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete colorectal symptoms assessments using colorectal anal distress inventory (CRADI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Pelvic Floor Distress Inventory (PFDI) - POPDI

As a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete prolapse symptoms assessments using pelvic organ prolapse distress inventory (POPDI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Pelvic Floor Distress Inventory (PFDI) - UDI

As a part of the pelvic floor distress inventory (PFDI) questionnaire, participants will complete urinary symptoms assessments using urinary distress inventory (UDI). The symptoms will be measured on a scale of 0, present, to 4, quite a bit. A higher score will indicate a higher symptom burden.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Pelvic Muscle Strength

Participants will complete the Brink Scale, a digital assessment of pelvic floor muscle strength. It consists of 3 separate 4-point rating scales for pressure, vertical finger displacement, and duration.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Postoperative Functional Activity Level

Participants will complete the Activity Assessment Scale which measures functional activity. The activity level will be measured on a scale of no difficulty, a little difficulty, some difficulty, a lot of difficulty, not able to do it, and did not do it for other reasons.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Postoperative Pain Measured by Pain Medication Use

Participants will complete an assessment of pain medication use.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Postoperative Pain Measured by Pain Scale

Participants will complete the pain scale. No pain will indicate the best outcome whereas the most intense pain imaginable will indicate the worst outcome.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Quality of Life Measured by EQ-5D

Participants will complete EuroQol-5D (EQ-5D), an instrument that evaluates quality of life on five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The measurement will be on a scale of 1 to 5.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Quality of Life Measured by PFIQ

Participants will complete pelvic floor impact questionnaire (PFIQ), a condition-specific health-related quality of life questionnaire. The measurement will be on a scale of 0, not at all, to 3, quite a bit. Higher scores indicate greater impact.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Secondary

Quality of Life Measured by SF-36

Participants will also complete short form health survey (SF-36), which measures eight scales: physical functioning (PF), role physical (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role emotional (RE), and mental health (MH). Higher scores indicate better health status.

Time frame: 24 months post-operatively

Population: Due to the early termination of the study, the 24-month post-operative primary outcome measurements could not be completed.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026