ClinicalTrials.gg
CompletedNCT04985799Updated Aug 6, 2024Results posted

Comparing KIM to TVT Exact Sling

An interventional study of Gynecare TVT Exact Continence System and Neomedic KIM (Knotless Incontinence Mesh) in Stress Urinary Incontinence, sponsored by University of North Carolina, Chapel Hill. Completed at 2 sites in United States. Open to female participants aged 21 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-08-06.

Sponsored by University of North Carolina, Chapel Hill · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
147
Allocation
Randomized
Ages
21 Years and older
Sex
Female
01

Study summary

To assess to the non-inferiority of the retropubic Neomedic Knotless Incontinence Mesh (KIM) sling compared to the Gynecare Tension-free Vaginal Tape (TVT) Exact sling.

Participants: Women 21 years or older with a diagnosis of stress urinary incontinence (SUI) or mixed urinary incontinence (MUI) with objective evidence of SUI planning surgery for stress urinary incontinence.

Procedures (methods): Patients will be randomized to receive either the Gynecare TVT Exact sling or the retropubic Neomedic KIM sling. Patients will be followed for 1 year postoperatively.

Read the detailed description

Midurethral slings (MUS) are recognized as a minimally invasive treatment of SUI. The retropubic route of MUS placement has a cure rate of 89.1% with long term subjective cure rates ranging from 51-88%. The Neomedic Knotless Incontinence Mesh (KIM) sling is a tension-free macroporous monofilament polypropylene knotless mesh designed to be resistant to elongation and deformation over time. The KIM sling also offers a reusable trocar, which results in less waste and cost- savings. KIM sling trocars are available for the retropubic route or trans-obturator (TOT) route.

While studies have been performed comparing the TOT approach of the KIM sling to other slings, no studies have been performed to date with the retropubic (RP) approach. The RP and TOT approaches to MUS have been shown to be equivalent in the treatment of SUI. Since the same mesh material of the KIM sling is used for both the TOT and RP approach, it can be hypothesis that the RP route would show similar treatment success rates.

A type 1 macroporous (> 75um) polypropylene mesh is the most appropriate material for vaginal implantation. However, literature has suggested that the design and weave of synthetic mesh material can also have a significant effect on efficacy and safety; therefore, the novel design of the KIM may be beneficial to reduce complications. If there is similar efficacy with the RP approach of the KIM sling to the TVT Exact, there will be benefit of reduced costs and the potential for less complications. With this study, the objective is to show non-inferiority of the KIM sling to the Gynecare TVT Exact.

02

Conditions studied

  • Stress Urinary Incontinence

Keywords

  • Stress urinary incontinence
  • Mixed urinary incontinence
  • Midurethral sling
03

In context

Urinary Incontinence, Stress

670 studies on the registry are indexed under Urinary Incontinence, Stress; 122 are open to participants now.

This study's enrollment of 147 is above the median of 69 across 520 interventional studies indexed under Urinary Incontinence, Stress.

Browse Urinary Incontinence, Stress studies →

Lead sponsor

University of North Carolina, Chapel Hill is the lead sponsor of 1,366 studies on the registry; 133 are open to participants now.

Of its 158 completed or terminated interventional studies of FDA-regulated products, 139 (88%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Women greater than or equal to 21 years based on medical chart review
  • Diagnosis of SUI or mixed urinary incontinence based on medical chart review
  • Objective evidence of SUI as indicated by positive cough stress test or urodynamic stress incontinence during urodynamic testing within the last year prior to enrollment. Medical chart will be reviewed.
  • Planning surgery for SUI with/without pelvic organ prolapse (POP) surgery

Exclusion criteria

Exclusion Criteria:

  • Current pregnancy, desire for future childbearing, less than or equal to 12 months postpartum at the time of enrollment
  • Prior history of surgery for SUI based on medical chart review
  • Bladder capacity \<200 mL on Urodynamic testing or post-void residual (PVR) >150 mL on urodynamic testing or bladder scan.
  • Non-ambulatory
  • Current genitourinary fistula or urethral diverticulum based on pre-operative exam in the medical chart.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
147 participants (actual)

Study arms

  • Active comparator
    Gynecare TVT Exact sling

    Participants who are planning surgery for SUI are randomized to have placement of Gynecare TVT Exact sling and followed postoperatively for 1 year.

    Device: Gynecare TVT Exact Continence System

  • Active comparator
    Neomedic KIM sling

    Participants who are planning surgery for SUI are randomized to have placement of retropubic Neomedic KIM sling and followed postoperatively for 1 year.

    Device: Neomedic KIM (Knotless Incontinence Mesh)

Interventions

  • DeviceGynecare TVT Exact Continence System

    Participants will have placement of Gynecare TVT Exact sling.

    Also known as: Midurethral sling

  • DeviceNeomedic KIM (Knotless Incontinence Mesh)

    Participants will have placement of retropubic Neomedic KIM (Knotless Incontinence Mesh) sling

    Also known as: Midurethral sling

06

What researchers measure

Primary outcomes

  1. Number of Participants With Treatment Success at 6 Weeks After Surgery

    Treatment success is defined by a composite outcome of 1) response of No or "no bother" to question #3 on urogenital distress inventory-6 (UDI-6) validated questionnaire AND no retreatment of stress incontinence.

    Time frame: 6 weeks after surgery

Secondary outcomes

  1. Number of Participants With Treatment Success at 1 Year After Surgery

    Treatment success is defined by a composite outcome of 1) response of No or "no bother" to question #3 on urogenital distress inventory-6 (UDI-6) validated questionnaire AND no retreatment of stress incontinence.

    Time frame: up to 1 year

  2. Number of Participants Requiring Reoperation for Mesh Complications or Urinary Retention Thru 1 Year After Surgery

    Reoperation for mesh complications or urinary retention thru 1 year after initial sling surgery

    Time frame: up to 1 year

  3. Number of Participants With Mesh Exposure Thru 1 Year After Surgery

    Sling mesh exposure identified on examination thru 1 year after surgery

    Time frame: up to 1 year after surgery

07

Results

Posted Aug 24, 2023

Participant flow

Participant flow — Overall Study
MilestoneGynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) Sling
Started7374
Completed7374
Not completed00

Outcome measures

PrimaryNumber of Participants With Treatment Success at 6 Weeks After Surgery

Treatment success is defined by a composite outcome of 1) response of No or "no bother" to question #3 on urogenital distress inventory-6 (UDI-6) validated questionnaire AND no retreatment of stress incontinence.

Time frame:
6 weeks after surgery
Reported as:
Count of participants · Participants
Number of Participants With Treatment Success at 6 Weeks After Surgery
ParticipantsGynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) Sling
Number of Participants With Treatment Success at 6 Weeks After Surgery6151
Statistical analysis
  • Gynecare Tension-free Vaginal Tape (TVT) Exact Sling vs Neomedic Knotless Incontinence Mesh (KIM) Sling · Chi-squared · p = 0.04 · Risk difference (rd): 14.8 · 95% CI 1.1 to 28.5
SecondaryNumber of Participants With Treatment Success at 1 Year After Surgery

Treatment success is defined by a composite outcome of 1) response of No or "no bother" to question #3 on urogenital distress inventory-6 (UDI-6) validated questionnaire AND no retreatment of stress incontinence.

Time frame:
up to 1 year
Reported as:
Count of participants · Participants
Number of Participants With Treatment Success at 1 Year After Surgery
ParticipantsGynecare TVT Exact SlingNeomedic KIM Sling
Number of Participants With Treatment Success at 1 Year After Surgery5553
Statistical analysis
  • Gynecare TVT Exact Sling vs Neomedic KIM Sling · Chi-squared · p = 0.29 · Risk difference (rd): 7.4 · 95% CI -6.2 to 21.1
SecondaryNumber of Participants Requiring Reoperation for Mesh Complications or Urinary Retention Thru 1 Year After Surgery

Reoperation for mesh complications or urinary retention thru 1 year after initial sling surgery

Time frame:
up to 1 year
Reported as:
Count of participants · Participants
Number of Participants Requiring Reoperation for Mesh Complications or Urinary Retention Thru 1 Year After Surgery
ParticipantsGynecare TVT Exact SlingNeomedic KIM Sling
Number of Participants Requiring Reoperation for Mesh Complications or Urinary Retention Thru 1 Year After Surgery00
SecondaryNumber of Participants With Mesh Exposure Thru 1 Year After Surgery

Sling mesh exposure identified on examination thru 1 year after surgery

Time frame:
up to 1 year after surgery
Reported as:
Count of participants · Participants
Number of Participants With Mesh Exposure Thru 1 Year After Surgery
ParticipantsGynecare TVT Exact SlingNeomedic KIM Sling
Number of Participants With Mesh Exposure Thru 1 Year After Surgery61
Statistical analysis
  • Gynecare TVT Exact Sling vs Neomedic KIM Sling · Chi-squared · p = 0.11

Adverse events

Collected over Adverse events are reported from after surgery until 1 year postoperative visit.. Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Gynecare TVT Exact Sling0/73 (0%)0/73 (0%)9/73 (12.3%)
Neomedic KIM Sling0/74 (0%)0/74 (0%)6/74 (8.1%)
Most frequent other events
Most frequent other events
EventGynecare TVT Exact SlingNeomedic KIM Sling
Mesh exposureRenal and urinary disorders6/731/74
Urinary retentionRenal and urinary disorders3/735/74

Baseline characteristics

Age, Continuous
Age, Continuous(years)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
Mean58.0 ± 12.759.7 ± 12.158.9 ± 12.4
Sex: Female, Male
Sex: Female, Male(Participants)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
Female7374147
Male000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
American Indian or Alaska Native000
Asian011
Native Hawaiian or Other Pacific Islander000
Black or African American7815
White6362125
More than one race000
Unknown or Not Reported336
Region of Enrollment
Region of Enrollment(Participants)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
United States7374147
Diabetes
Diabetes(Participants)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
Count of participants6814
Current smoker
Current smoker(Participants)Gynecare Tension-free Vaginal Tape (TVT) Exact SlingNeomedic Knotless Incontinence Mesh (KIM) SlingTotal
Count of participants91019
08

Study locations

2 sites
  • UNC Hospitals Hillsborough Campus
    Hillsborough, North Carolina 27278, United States
  • Rex Hospital
    Raleigh, North Carolina 27607, United States
09

References and documents

Publications

  • Padilla-Fernandez B, Garcia-Cenador MB, Gomez-Garcia A, Miron-Canelo JA, Gil-Vicente A, Silva-Abuin JM, Lorenzo-Gomez MF. Results of the surgical correction of urinary stress incontinence according to the type of transobturator tape utilized. Arch Ital Urol Androl. 2013 Sep 26;85(3):149-53. doi: 10.4081/aiua.2013.3.149. PubMed 24085238 ↗
  • Imamura M, Hudson J, Wallace SA, MacLennan G, Shimonovich M, Omar MI, Javanbakht M, Moloney E, Becker F, Ternent L, Montgomery I, Mackie P, Saraswat L, Monga A, Vale L, Craig D, Brazzelli M. Surgical interventions for women with stress urinary incontinence: systematic review and network meta-analysis of randomised controlled trials. BMJ. 2019 Jun 5;365:l1842. doi: 10.1136/bmj.l1842. PubMed 31167796 ↗
  • Ford AA, Rogerson L, Cody JD, Aluko P, Ogah JA. Mid-urethral sling operations for stress urinary incontinence in women. Cochrane Database Syst Rev. 2017 Jul 31;7(7):CD006375. doi: 10.1002/14651858.CD006375.pub4. PubMed 28756647 ↗
  • Richter HE, Albo ME, Zyczynski HM, Kenton K, Norton PA, Sirls LT, Kraus SR, Chai TC, Lemack GE, Dandreo KJ, Varner RE, Menefee S, Ghetti C, Brubaker L, Nygaard I, Khandwala S, Rozanski TA, Johnson H, Schaffer J, Stoddard AM, Holley RL, Nager CW, Moalli P, Mueller E, Arisco AM, Corton M, Tennstedt S, Chang TD, Gormley EA, Litman HJ; Urinary Incontinence Treatment Network. Retropubic versus transobturator midurethral slings for stress incontinence. N Engl J Med. 2010 Jun 3;362(22):2066-76. doi: 10.1056/NEJMoa0912658. Epub 2010 May 17. PubMed 20479459 ↗
  • Chapple CR, MacNeil S. The use of implanted materials for treating women with pelvic organ prolapse and stress urinary incontinence. Curr Opin Urol. 2019 Jul;29(4):431-436. doi: 10.1097/MOU.0000000000000619. PubMed 30888974 ↗
  • Margulies SL, Osment AE, Bernard A, Schroeder MN, Askew AL, Agu IS, Kunycky CA, Geller EJ, Willis-Gray M, Chu CM, Wu JM. Noninferiority Randomized Clinical Trial: KIM Sling With Reusable Trocars Versus TVT Exact Sling. Urogynecology (Phila). 2025 Feb 1;31(2):101-107. doi: 10.1097/SPV.0000000000001596. Epub 2024 Nov 8. PubMed 39514254 ↗

Study documents

  • Protocol and statistical analysis plan · Apr 15, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — Deidentified individual data that supports the results will be shared beginning 9 to 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with University of North Carolina (UNC)

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: Beginning 9 to 36 months following publication

Access criteria: Approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 6, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04985799
Responsible party
Sponsor
First posted
Aug 2, 2021
Start date
Aug 11, 2021
Primary completion
May 31, 2023
Completion
Jun 28, 2024
Results posted
Aug 24, 2023
Last update
Aug 6, 2024

Study contacts

Jennifer Wu, MD, MPH
principal investigator · University of North Carolina, Chapel Hill
Christina Kunycky, MD
principal investigator · University of North Carolina, Chapel Hill

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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