Operations and Pelvic Muscle Training in the Management of Apical Support Loss: The OPTIMAL Trial

Study Overview
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Brief Summary
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Pelvic organ prolapse is common among women with a prevalence that has been estimated to be as high as 30%. Pelvic organ prolapse often involves a combination of support defects involving the anterior, posterior and/or apical vaginal segments. While the anterior vaginal wall is the segment most likely to demonstrate recurrent prolapse after reconstructive surgery, reoperations are highest among those who require apical suspension procedures with or without repair of other vaginal segments (12%-33%). Despite the substantial health impact, there is a paucity of high quality evidence to support different practices in the management of prolapse, particularly surgery. Thus, the objectives of the Operations and Pelvic Muscle Training in the Management of Apical Support Loss (OPTIMAL) Trial are: to compare sacrospinous ligament fixation (SSLF) to uterosacral vaginal vault ligament suspension (ULS); and to assess the role of perioperative behavioral therapy/pelvic muscle training (PMT) in women undergoing vaginal surgery for apical or uterine prolapse and stress urinary incontinence.

Detailed Description
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Many women develop pelvic organ prolapse over the course of their lives. Pelvic organ prolapse is the downward descent of the pelvic organs (which include the uterus, bladder and bowel) into the vagina. Researchers estimate that between 7-10% of women will require surgery for prolapse sometime in their lifetime. Many will have more than one operation for the prolapse. Because this is such a common problem, the investigators in the Pelvic Floor Disorders Network strive to offer women the best treatment options. However, there were not enough carefully designed and conducted research studies to help guide them in this direction. Women who are planning surgery for apical vaginal prolapse often experience bladder and bowel symptoms, as well as pressure and a bulge. These symptoms might include urinary leakage (urinary incontinence), urinary urgency (a sudden strong desire to urinate with fear that leakage may occur) or frequent urination, difficulty starting to urinate or perhaps a slow weak urinary stream, as well as accidental bowel leakage (fecal incontinence). After surgery, bladder and bowel symptoms may get better, get worse, or stay the same as before surgery. Sometimes new symptoms can start after surgery even if they weren't present before surgery. The OPTIMAL study was designed to compare two commonly performed vaginal surgeries for pelvic organ prolapse. One is the sacrospinous ligament fixation, called SSLF for short. The other is the uterosacral ligament suspension, called ULS. Both surgeries involve attaching the top of the vagina, which has fallen down, to internal ligaments in the pelvis in order to resuspend the vagina and correct the prolapse. The investigators were also interested in studying how the surgeries altered bladder and bowel symptoms. They had seen in other studies that behavioral and pelvic floor muscle therapy (PMT) is an effective therapy for stress and urge urinary incontinence, fecal incontinence, and other pelvic floor disorders. It is relatively easy to perform, and has rare side effects. They wondered if PMT around the time of surgery might further improve these symptoms. The OPTIMAL study has two main purposes: To find out which type of surgery, SSLF or ULS, has better results when used to repair prolapse of the top of the vagina, To find out whether or not doing pelvic muscle exercises and behavioral changes around the time of surgery will affect both bladder and bowel symptoms after surgery, and the success of the prolapse repair. Four Hundred women were enrolled into the OPTIMAL study, from January 2008 to May 2011. These women were randomly assigned to receive either the SSLF or the ULS surgery. They were randomly assigned to either receive the PMT training with a therapist before and after surgery or to not receive this therapy. So women fell into one of four groups: SSLF plus PMT ULS plus PMT SSLF without PMT ULS without PMT Women in this study were followed closely at regular intervals for two years after surgery.

Official Title
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Operations and Pelvic Muscle Training in the Management of Apical Support Loss: The OPTIMAL Trial: A Randomized Trial of Sacrospinous Ligament Fixation (SSLF) Versus Uterosacral Ligament Suspension (ULS) With and Without Perioperative Behavioral Therapy/Pelvic Muscle Training

Conditions
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Pelvic Organ Prolapse (POP)

Intervention / Treatment
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* Procedure: SSLF
* Procedure: ULS
* Behavioral: PMT


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Stage 2 to 4 prolapse Prolapse of the vaginal apex or cervix to at least half way into the vaginal canal (POPQ Point C > -TVL/2) [TVL stands for total vaginal length] Vaginal bulge symptoms as indicated by an affirmative response to either questions on the Pelvic Floor Distress Inventory (PFDI) Vaginal surgery for prolapse is planned, including a vaginal apical suspension procedure. Stress incontinence symptoms as indicated by an affirmative response to the PFDI Stress incontinence subscale Documentation of transurethral stress leakage on an office stress test or urodynamics with or without prolapse reduction within the previous 12 months A tension free vaginal tape (TVT) is planned to treat stress urinary incontinence. A pelvic muscle training (PMT) visit can be performed at least 2 weeks and not more than 4 weeks before surgery. Available for 24-months of follow-up. Able to complete study assessments, per clinician judgment Able and willing to provide written informed consent Exclusion Criteria: Contraindication to sacrospinous ligament fixation (SSLF), uterosacral vaginal vault ligament suspension (ULS), or TVT in the opinion of the treating surgeon. History of previous surgery that included a SSLF or ULS. (Previous vaginal vault suspensions using other techniques or in which the previous technique is unknown are eligible.) Pelvic pain or dyspareunia due to levator ani spasm that would preclude a PMT program. History of previous synthetic sling procedure for stress incontinence. Previous adverse reaction to synthetic mesh. Urethral diverticulum, current or previous (i.e., repaired) History of femoral to femoral bypass. Current cytotoxic chemotherapy or current or history of pelvic radiation therapy. History of two inpatient hospitalizations for medical comorbidities in the previous 12 months. Subject wishes to retain her uterus. [Both ULS and SLS include removal of the uterus, if not previously removed]

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: SSLF and PMT<br>Sacrospinous Ligament Fixation (SSLF) and Pelvic Muscle Training & Exercises (PMT) | Procedure: SSLF<br>* sacrospinous ligament fixation (SSLF)<br>Behavioral: PMT<br>* Pelvic muscle training and exercises (PMT)<br>|
| Experimental: ULS and PMT<br>Uterosacral Vaginal Vault Ligament Suspension (ULS) and Pelvic Muscle Training & Exercises (PMT) | Procedure: ULS<br>* uterosacral vaginal vault ligament suspension (ULS)<br>Behavioral: PMT<br>* Pelvic muscle training and exercises (PMT)<br>|
| Experimental: SSLF without PMT<br>Sacrospinous Ligament Fixation (SSLF) without Pelvic Muscle Training & Exercises (PMT) | Procedure: SSLF<br>* sacrospinous ligament fixation (SSLF)<br>|
| Experimental: ULS without PMT<br>Uterosacral Vaginal Vault Ligament Suspension (ULS) without Pelvic Muscle Training & Exercises (PMT) | Procedure: ULS<br>* uterosacral vaginal vault ligament suspension (ULS)<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Surgical Success | The absence of the following: (1) descent of the vaginal apex more than one-third into the vaginal canal; (2) anterior or posterior vaginal wall descent beyond the hymen; (3) bothersome vaginal bulge symptoms as indicated by an affirmative response to either 'Do you usually have a sensation of bulging or protrusion from the vaginal area?' or 'Do you usually have a bulge or something falling out that you can see or feel in the vaginal area?' in the Pelvic Floor Distress Inventory and any response other than 'not at all' to the question 'How much does this bother you?'; or (4) re-treatment for prolapse by either surgery or pessary. | 24 months | 
| Anatomic Failure | Anatomic failure is defined by one of the following: descent of the vaginal apex more than one-third into the vaginal canal, anterior or posterior vaginal wall descent beyond the hymen, or re-treatment for prolapse. | 24 months | 
| Urinary Distress Inventory at 6 Months | The Pelvic Floor Distress Inventory is a validated, self-reported instrument used to evaluate pelvic floor symptoms. It consists of 3 scales: 1. Pelvic Organ Prolapse Distress Inventory (POPDI, with 3 subscales), 2. Colorectal Anal Distress Inventory (CRADI, with 4 subscales), and 3. Urinary Distress Inventory (UDI, with 3 subscales). Scores are calculated by multiplying the mean value of all questions answered by 25 for the subscales and then adding the subscales. The range of responses for the UDI is: 0-300 with 0 (least distress) to 300 (most distress). Lower scores indicate better function / fewer symptoms. | 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change From Baseline: Urinary Distress Inventory | The Pelvic Floor Distress Inventory is a validated, self-reported instrument used to evaluate pelvic floor symptoms. It consists of 3 scales: 1. Pelvic Organ Prolapse Distress Inventory (POPDI, with 3 subscales), 2. Colorectal Anal Distress Inventory (CRADI, with 4 subscales), and 3. Urinary Distress Inventory (UDI, with 3 subscales). Scores are calculated by multiplying the mean value of all questions answered by 25 for the subscales and then adding the subscales. The range of responses for the UDI is: 0-300 with 0 (least distress) to 300 (most distress). Change = (24 Month Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Change From Baseline: Pelvic Organ Prolapse Distress Inventory | The Pelvic Floor Distress Inventory is a validated, self-reported instrument used to evaluate pelvic floor symptoms. It consists of 3 scales: 1. Pelvic Organ Prolapse Distress Inventory (POPDI, with 3 subscales), 2. Colorectal Anal Distress Inventory (CRADI, with 4 subscales), and 3. Urinary Distress Inventory (UDI, with 3 subscales). Scores are calculated by multiplying the mean value of all questions answered by 25 for the subscales and then adding the subscales. The range of responses for the POPDI is: 0-300 with 0 (least distress) to 300 (most distress). Change = (24 Month Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Change From Baseline: Colorectal Anal Distress Inventory | The Pelvic Floor Distress Inventory is a validated, self-reported instrument used to evaluate pelvic floor symptoms. It consists of 3 scales: 1. Pelvic Organ Prolapse Distress Inventory (POPDI, with 3 subscales), 2. Colorectal Anal Distress Inventory (CRADI, with 4 subscales), and 3. Urinary Distress Inventory (UDI, with 3 subscales). Scores are calculated by multiplying the mean value of all questions answered by 25 for the subscales and then adding the subscales. The range of responses for the CRADI is: 0-400 with 0 (least distress) to 400 (most distress). Change = (24 Month Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Urinary Impact Questionnaire Change From Baseline to 24 Months | The Pelvic Floor Impact Questionnaire measuring the impact of bladder, bowel, and vaginal symptoms on a woman's daily activities, relationships and emotions is composed of 3 scales: the Urinary Impact Questionnaire (UIQ; 4 subscales, range 0-400), the Pelvic Organ Prolapse Impact Questionnaire (POPIQ; 4 subscales, range 0-400), and the Colorectal-Anal Impact Questionnaire (CRAIQ; 4 subscales, range 0-400). Scores are calculated by multiplying the mean value of all answered questions for a subscale by 100 divided by 3. The subscales are then added together. The range of responses is: 0-400 with 0 (least negative impact) to 400 (most negative impact). Change = (24 Month Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Pelvic Organ Prolapse Impact Questionnaire Change From Baseline to 24 Months | The Pelvic Floor Impact Questionnaire measuring the impact of bladder, bowel, and vaginal symptoms on a woman's daily activities, relationships and emotions is composed of 3 scales: the Urinary Impact Questionnaire (UIQ; 4 subscales, range 0-400), the Pelvic Organ Prolapse Impact Questionnaire (POPIQ; 4 subscales, range 0-400), and the Colorectal-Anal Impact Questionnaire (CRAIQ; 4 subscales, range 0-400). Scores are calculated by multiplying the mean value of all answered questions for a subscale by 100 divided by 3. The subscales are then added together. The range of responses is: 0-400 with 0 (least negative impact) to 400 (most negative impact). Change = (Year 2 Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Colorectal-Anal Impact Questionnaire Change From Baseline to 24 Months | The Pelvic Floor Impact Questionnaire measuring the impact of bladder, bowel, and vaginal symptoms on a woman's daily activities, relationships and emotions is composed of 3 scales: the Urinary Impact Questionnaire (UIQ; 4 subscales, range 0-400), the Pelvic Organ Prolapse Impact Questionnaire (POPIQ; 4 subscales, range 0-400), and the Colorectal-Anal Impact Questionnaire (CRAIQ; 4 subscales, range 0-400). Scores are calculated by multiplying the mean value of all answered questions for a subscale by 100 divided by 3. The subscales are then added together. The range of responses is: 0-400 with 0 (least negative impact) to 400 (most negative impact). Change = (Year 2 Score - Baseline Score). Lower scores indicate better function / fewer symptoms. | Baseline and 24 months | 
| Sexual Function 36 - Physical Health Component Score Change From Baseline to 24 Months | Sexual Function 36 (SF36) - Physical Health Component Score is the physical health component of the Sexual Function 36 survey with scores ranging from 0 to 100 with higher scores meaning a better health state. Scales are scored according to the algorithm that describes the handling of the various types of questions included in the questionnaire. Several steps are involved in the scoring process: recoding items that require it; summing over items; and transforming raw scale scores to a 0 to 100 scale. This physical health component is a function of several constructs measured under the SF36: physical functioning, physical role, bodily pain, general health, and vitality. | Baseline and 24 months | 
| Sexual Function 36 - Mental Health Component Score Change From Baseline to 24 Months | Sexual Function 36 (SF36) - Mental Health Component Score is the mental health component of the Sexual Function 36 survey with scores ranging from 0 to 100 with higher scores meaning a better health state. Scales are scored according to the algorithm that describes the handling of the various types of questions included in the questionnaire. Several steps are involved in the scoring process: recoding items that require it; summing over items; and transforming raw scale scores to a 0 to 100 scale. | Baseline and 24 months | 
| Pelvic Organ Prolapse/Urinary Incontinence Sexual Function Questionnaire Change From Baseline to 24 Months | Pelvic Organ Prolapse/Urinary Incontinence Sexual Function Questionnaire (PISQ) is a survey of sexual functioning with scores ranging from 0 to 48 with higher scores meaning better sexual functioning. Patients were asked to answer 31 questions about their sexuality in the past 6 months. | Baseline and 24 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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prolapse, urinary incontinence, uterosacral vaginal vault ligament suspension, sacrospinous ligament fixation, behavioral therapy, pelvic muscle training