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

2026年9月28日 更新者: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.

調査の概要

状態

まだ募集していません

条件

介入・治療

詳細な説明

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.

研究の種類

観察的

入学 (推定)

1700

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • Bogota D.C.
      • Bogotá、Bogota D.C.、コロンビア、110111
        • Hospital Universitario Fundación Santa Fe de Bogotá
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

サンプリング方法

非確率サンプル

調査対象母集団

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.

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 観測モデル:COHORT
  • 時間の展望:RETROSPECTIVE

コホートと介入

グループ/コホート
介入・治療
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.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Change in Urinary Incontinence Severity Assessed by ICIQ-UI SF
時間枠: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.

二次結果の測定

結果測定
メジャーの説明
時間枠
Patient Global Impression of Improvement (PGI-I)
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

一般刊行物

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年12月1日

一次修了 (推定)

2027年5月1日

研究の完了 (推定)

2027年5月30日

試験登録日

最初に提出

2026年9月28日

QC基準を満たした最初の提出物

2026年9月28日

最初の投稿 (実際)

2026年10月2日

学習記録の更新

投稿された最後の更新 (実際)

2026年10月2日

QC基準を満たした最後の更新が送信されました

2026年9月28日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • CCEI-19276-2026

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

はい

米国で製造され、米国から輸出された製品。

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。