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

28 de setembro de 2026 atualizado por: 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.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

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.

Tipo de estudo

Observacional

Inscrição (Estimado)

1700

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

    • Bogota D.C.
      • Bogotá, Bogota D.C., Colômbia, 110111
        • Hospital Universitario Fundación Santa Fe de Bogotá
        • Contato:

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra Não Probabilística

População do estudo

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.

Descrição

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.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Modelos de observação: COHORT
  • Perspectivas de Tempo: RETROSPECTIVE

Coortes e Intervenções

Grupo / Coorte
Intervenção / Tratamento
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.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Change in Urinary Incontinence Severity Assessed by ICIQ-UI SF
Prazo: 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.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Patient Global Impression of Improvement (PGI-I)
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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.

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Colaboradores

Publicações e links úteis

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Publicações Gerais

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de dezembro de 2026

Conclusão Primária (Estimado)

1 de maio de 2027

Conclusão do estudo (Estimado)

30 de maio de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

28 de setembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

28 de setembro de 2026

Primeira postagem (Real)

2 de outubro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

2 de outubro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

28 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • CCEI-19276-2026

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Sim

produto fabricado e exportado dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .