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Long-Term Effectiveness and Safety of Sacral Neuromodulation With InterStim for Lower Urinary Tract Dysfunction

28 września 2026 zaktualizowane przez: Mauricio Plata Salazar, Fundación Santa Fe de Bogota

Long-Term Effectiveness and Safety of Sacral Neuromodulation With InterStim for the Management of Lower Urinary Tract Dysfunction

This observational study will evaluate the long-term effectiveness, safety, and patient satisfaction associated with sacral neuromodulation using the InterStim™ system in adults treated for lower urinary tract dysfunction at Fundación Santa Fe de Bogotá. The study will include patients who underwent definitive InterStim implantation between January 2010 and June 2026 for conditions including overactive bladder, urgency urinary incontinence, non-obstructive acontractile detrusor, or non-obstructive urinary retention.

Clinical information before implantation, details of the procedure, complications, reinterventions, device replacements, and explantations will be obtained retrospectively from medical records. Patients who can be contacted will also complete a single telephone follow-up assessment to evaluate current urinary symptoms, perceived improvement, satisfaction with treatment, catheter use, and current device status.

The study aims to describe the long-term effectiveness and safety of InterStim therapy in a Colombian population, including changes in urinary incontinence, patient-reported improvement and satisfaction, complications, therapeutic failure, and device survival.

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Szczegółowy opis

This is an observational analytical retrospective cohort study with a single cross-sectional follow-up assessment. The study will include adult patients who underwent definitive implantation of the InterStim™ sacral neuromodulation system at Hospital Universitario Fundación Santa Fe de Bogotá between January 1, 2010, and June 30, 2026, for lower urinary tract dysfunction, including overactive bladder, urgency urinary incontinence, non-obstructive acontractile detrusor, and non-obstructive urinary retention.

Eligible patients will be identified consecutively using available institutional sources, including surgical scheduling records, procedure codes, and implantable device records. Data will be obtained from two sources: retrospective review of electronic medical records and a single telephone follow-up assessment.

Medical record review will include sociodemographic and clinical characteristics, indication for sacral neuromodulation, previous treatments, available pre-implantation patient-reported outcome measures, procedural characteristics, perioperative complications, reprogramming, reinterventions, device replacements, explantations, and other events occurring during follow-up.

During the single telephone follow-up, contactable patients who agree to participate will complete the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF), the Patient Global Impression of Improvement (PGI-I), and a 5-point Likert satisfaction scale. Current device status, catheter use, and additional urinary medications will also be recorded.

Effectiveness will be assessed using patient-reported urinary outcomes, including change in ICIQ-UI SF score when a pre-implantation score is available, with a reduction of at least 4 points considered clinically meaningful improvement. The PGI-I will provide an assessment of perceived improvement regardless of the availability of a baseline questionnaire. Additional effectiveness outcomes will include complete continence among patients with overactive bladder or urgency urinary incontinence and catheter independence among patients with non-obstructive urinary retention.

Safety outcomes will include perioperative and postoperative complications, classified according to the Clavien-Dindo classification, as well as reinterventions, device replacement, and surgical explantation. Device outcomes will include the frequency and causes of replacement or explantation and replacement- or explant-free device survival at 1, 3, 5, and 10 years.

Follow-up time will vary according to the date of definitive implantation and will extend from the index implantation date to the telephone assessment for patient-reported outcomes, or to the last available medical record information, definitive explantation, or death, as applicable for safety and device-survival outcomes.

Typ studiów

Obserwacyjny

Zapisy (Szacowany)

1700

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

    • Bogota D.C.
      • Bogotá, Bogota D.C., Kolumbia, 110111
        • Hospital Universitario Fundación Santa Fe de Bogotá
        • Kontakt:

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

Adults with lower urinary tract dysfunction who underwent definitive InterStim™ sacral neuromodulation implantation at Hospital Universitario Fundación Santa Fe de Bogotá between January 1, 2010, and June 30, 2026. The cohort includes patients treated for overactive bladder, urgency urinary incontinence, non-obstructive acontractile detrusor, or non-obstructive urinary retention. All eligible patients identified from institutional records during the study period will be included.

Opis

Inclusion Criteria:

  1. Male and female patients aged 18 years or older.

  2. Definitive implantation of the InterStim™ sacral neuromodulation system, performed in one or two stages, at Hospital Universitario Fundación Santa Fe de Bogotá between January 1, 2010, and June 30, 2026.

  3. InterStim™ implantation for at least one of the following conditions:- Overactive bladder.

    • Urgency urinary incontinence.
    • Non-obstructive acontractile detrusor.
    • Non-obstructive urinary retention.

Exclusion Criteria:

  • History of instrumentation or surgical intervention involving the lumbosacral spine.
  • Neurogenic lower urinary tract dysfunction.
  • Patients who underwent the InterStim™ test phase but did not receive definitive implantation of the pulse generator.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Modele obserwacyjne: COHORT
  • Perspektywy czasowe: RETROSPECTIVE

Kohorty i interwencje

Grupa / Kohorta
Interwencja / Leczenie
InterStim Sacral Neuromodulation Cohort

Group/Cohort Description [*] Provide additional information about the group or cohort, including a description of any intervention(s) of interest.

Sacral neuromodulation with the InterStim™ system. Participants included in this observational study previously underwent definitive InterStim implantation as part of their clinical care. The study does not assign or administer the device as a research intervention.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Change in Urinary Incontinence Severity Assessed by ICIQ-UI SF
Ramy czasowe: From pre-implantation to the single follow-up assessment, approximately 6 months to 17 years after implantation.

Change in International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) score from the pre-implantation score documented in the medical record to the score obtained at the single follow-up assessment. A reduction of ≥4 points will be considered a clinically meaningful improvement.

From pre-implantation to the single follow-up assessment, approximately 6 months to 17 years after implantation.

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Patient Global Impression of Improvement (PGI-I)
Ramy czasowe: At the single follow-up assessment, approximately 6 months to 17 years after implantation.

Patient-reported improvement in urinary condition assessed using the 7-point Patient Global Impression of Improvement (PGI-I) scale. A favorable response will be defined as "very much better" or "much better."

At the single follow-up assessment, approximately 6 months to 17 years after implantation.
Patient Satisfaction With InterStim
Ramy czasowe: At the single follow-up assessment, approximately 6 months to 17 years after implantation.

Overall patient satisfaction with InterStim sacral neuromodulation assessed using a 5-point Likert scale.

At the single follow-up assessment, approximately 6 months to 17 years after implantation.
Complete Urinary Continence
Ramy czasowe: At the single follow-up assessment, approximately 6 months to 17 years after implantation.

Proportion of patients with overactive bladder or urgency urinary incontinence who achieve complete urinary continence ("dry") following InterStim implantation.

At the single follow-up assessment, approximately 6 months to 17 years after implantation.
Catheter Independence
Ramy czasowe: At the single follow-up assessment, approximately 6 months to 17 years after implantation.

Proportion of patients with non-obstructive urinary retention who achieve independence from intermittent catheterization following InterStim implantation.

At the single follow-up assessment, approximately 6 months to 17 years after implantation.
Incidence of InterStim-Related Complications
Ramy czasowe: From implantation through the end of available follow-up, up to approximately 17 years.

Proportion of patients experiencing perioperative or postoperative complications following InterStim implantation. Complications will be classified according to the Clavien-Dindo classification.

From implantation through the end of available follow-up, up to approximately 17 years.
Time to First Complication
Ramy czasowe: From implantation through the end of available follow-up, up to approximately 17 years.

Time from definitive InterStim implantation to the first documented complication.

From implantation through the end of available follow-up, up to approximately 17 years.
Device Replacement or Explantation
Ramy czasowe: From implantation through the end of available follow-up, up to approximately 17 years.

Proportion of patients requiring InterStim device replacement or surgical explantation and the documented reasons for replacement or explantation.

From implantation through the end of available follow-up, up to approximately 17 years.
Therapeutic Failure
Ramy czasowe: At the single follow-up assessment and through the end of available follow-up, up to approximately 17 years.

Proportion of patients meeting the protocol-defined composite therapeutic failure endpoint: device explantation or permanent deactivation due to lack of efficacy; less than a 4-point reduction in ICIQ-UI SF among patients with an available pre-implantation score or PGI-I indicating "no change" or worse; or persistent need for intermittent catheterization among patients with non-obstructive urinary retention.

At the single follow-up assessment and through the end of available follow-up, up to approximately 17 years.

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Współpracownicy

Publikacje i pomocne linki

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Publikacje ogólne

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 grudnia 2026

Zakończenie podstawowe (Szacowany)

1 maja 2027

Ukończenie studiów (Szacowany)

30 maja 2027

Daty rejestracji na studia

Pierwszy przesłany

28 września 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

28 września 2026

Pierwszy wysłany (Rzeczywisty)

2 października 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

2 października 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

28 września 2026

Ostatnia weryfikacja

1 września 2026

Więcej informacji

Terminy związane z tym badaniem

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Tak

produkt wyprodukowany i wyeksportowany z USA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .