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Stress Urinary IncontinenceSURENCT01284244

A Randomized Controlled Trial of the Uresta Continence Pessary

A study testing Uresta pessary and Silastic ring in people with Stress Urinary Incontinence, run by Mount Sinai Hospital, Canada at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Stress urinary incontinence (SUI) is defined as the involuntary loss of urine with an increase in abdominal pressure, caused either by a loss of support under the bladder neck, or intrinsic urethral sphincter deficiency. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Stress Urinary Incontinence
What is being tested?
Uresta pessary and Silastic ring
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteCanada
Study dates
Jan 2011to May 2014
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Urodynamic diagnosis of stress urinary incontinence

Who cannot join

  • Urodynamic diagnosis of mixed incontinence
  • Bladder capacity less than 300mls
  • Post-void residual over 100mls
  • Pelvic organ prolapse greater than POP-Q stage 2
  • Hematuria
  • Undiagnosed vaginal bleeding
Show all 10Show fewer
  • Current pregnancy
  • Previous incontinence or prolapse surgery
  • Failed use of an incontinence pessary
  • Physically unable to perform the activities included in the pad test

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Department of Obstetrics and Gynecology, Mount Sinai Hospital

    Toronto, Ontario, M5G1Z5

Other trials in Canada

About this study

Official title: A Randomized Controlled Trial of the Uresta Continence Pessary; Short-term Uresta Efficacy Study (SURE Study)

Stress urinary incontinence (SUI) is defined as the involuntary loss of urine with an increase in abdominal pressure, caused either by a loss of support under the bladder neck, or intrinsic urethral sphincter deficiency. It is a common problem in women that can significantly impact quality of life, with up to 30% developing SUI at some point in their lifetime.

The most commonly utilized treatments for SUI include either pelvic floor (Kegel) exercises, or surgery. Many women find Kegel exercises unsatisfactory, but are reluctant to undergo a surgical procedure. Also, women who are poor candidates for surgery have limited options if Kegel exercises are unsuccessful. Over the years, there have been numerous attempts to develop effective non-surgical alternatives for treating SUI, but the results have been variable and the available data on efficacy limited.

Read more

A new intravaginal incontinence pessary (Uresta) has been developed for treating stress incontinence, and is currently available in Canada via a medical distributor. The self-positioning device is initially fitted by a healthcare provider, but then can subsequently placed by the patient as needed. Uresta is designed to be easily inserted into the vagina and spontaneously fall into position, providing support beneath the urethra. A single, uncontrolled study of 21 women showed that Uresta significantly reduces urinary incontinence measures, with no reported complications. Using questionnaires, a 47% reduction in self-reported SUI symptoms was demonstrated. Pad weight following a pad test, an objective assessment of urine loss, showed a 50% reduction in leakage.

This trial is intended to be a short-term assessment of the efficacy of the Uresta device, using a placebo arm in order to remove any of the possible sources of patient biases. The placebo ("sham") group will be obtained by placing a flexible silastic ring (inactivated Estring) high in the vagina where it will not alter urethral forces. The aim is to unequivocally determine whether the Uresta device provides the necessary urethral support to stop urine leakage from stress incontinence.

The hypothesis is that the Uresta device will significantly reduce urinary losses from baseline, shown as a significant reduction pad weight following a pad test with the device in place.

Being tested
Uresta pessary, Silastic ring
Keywords
Urinary Incontinence, Stress, pessary, conservative management
Medical subject headings
Urinary Incontinence, Stress

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Uresta pessaryDevice

    Participants randomized to the Uresta group will be fitted with device before immediately before performing the pad test. The Uresta pessary is made of medical grade rubber that has been extensively tested for safety. It is bell-shaped, with a narrow tip that allows for easy insertion into the vagina in a similar fashion to a tampon. The device can be easily inserted, and removed by a patient for use when needed. The Uresta comes in 3 sizes. Fitting starts with insertion of the smallest size. If urine leakage continues with valsalva or a cough stress test, it can be replaced by one size larger, until leakage is stopped. If the device prevents the patient from being able to void or is uncomfortable due to its size, the smaller size is replaced. Following the pad test, the participant will be given the opportunity to keep the device for continued use, or remove it if desired.

  • Silastic ringDevice

    The silastic ring is a plastic flexible ring similar to that used to administer vaginal estrogen (Estring). It is well tolerated and would not contain any medications. Immediately before performing the pad test, it would be placed high in the vagina, away from the urethra. It would be removed immediately after the pad test. Draping will conceal from the patient which device was inserted.

Study groups in NCT01284244
Study groupRoleWhat they receive
UrestaExperimentalNot described
Receives: Device: Uresta pessary
Silastic vaginal ringSham comparatorNot described
Receives: Device: Silastic ring

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. A 50% Reduction in Pad Test Weight

    A pad test is an objective measure of urine loss. With a full bladder, while wearing a pad, the participant completes five repetitions of the following physical activities: coughing, step climbing, heel bounce, standing from a sitting position and walking 50 yards. The weight of the pad is then determined.

    The primary outcome variable will be the achievement of a 50% reduction in the pad weight before and after device placement. This figure is obtained from the study by Farrell et al, where pad weight decreased from 20 grams to 9 grams with the use of the Uresta device.

    Measured: Immediately after device placement (short term).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jan 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionDec 2013
  4. Study completionMay 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01284244
Sponsor's protocol ID
100131A
Acronym
SURE
Status last verified
Feb 2017
First submitted
25 Jan 2011
Last updated
31 Mar 2017
Data monitoring committee
No

Publications

  • Farrell SA, Baydock S, Amir B, Fanning C. Effectiveness of a new self-positioning pessary for the management of urinary incontinence in women. Am J Obstet Gynecol. 2007 May;196(5):474.e1-8. doi: 10.1016/j.ajog.2006.11.038.

    PubMed 17466709

Questions about this trial

What is this clinical trial studying?

A study testing Uresta pessary and Silastic ring in people with Stress Urinary Incontinence, run by Mount Sinai Hospital, Canada at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Mar 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

A 50% Reduction in Pad Test Weight (time frame: Immediately after device placement (short term).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01284244, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Mar 2017.

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