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Active Versus Passive Anal Sphincter Training in Patients With Fecal Incontinence (ACTIPAST)

22. Mai 2026 aktualisiert von: Peter Liptak, University Hospital, Martin

Fecal incontinence is a disabling condition that can substantially impair quality of life. This study evaluates whether home-based anal electrical stimulation combined with active voluntary anal sphincter contraction is superior to electrical stimulation alone in patients with fecal incontinence.

The study is a prospective, randomized, parallel-group, open-label controlled trial. Participants will be randomized in a 1:1 ratio to either electrical stimulation with synchronized active sphincter contraction or electrical stimulation alone. The primary outcome is the change in Vaizey/St. Mark's Incontinence Score from baseline to week 12. Secondary outcomes include fecal incontinence episodes, quality of life, anorectal manometry parameters, adherence, safety, and sustained response during follow-up.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

This prospective randomized controlled trial will compare two home-based rehabilitation approaches for fecal incontinence. Eligible adult patients with urge, passive, or mixed fecal incontinence will be enrolled at study site: University Hospital Martin, Slovakia. Possibility to incorporate another study centre with be allowed. Participants will be randomized in a 1:1 ratio to one of two treatment arms.

In the active treatment arm, participants will use anal electrical stimulation combined with active voluntary anal sphincter contraction. Electrical stimulation will be delivered using the commercially available NeuroTrac Continence device with a frequency of 40 Hz, pulse width of 250 µs, 5-second ON and 10-second OFF cycles, 1-second ramp-up, and a session duration of 25 minutes. Stimulation intensity will be adjusted by the patient up to the maximum tolerable level without pain. Participants will be instructed to perform a maximum voluntary anal sphincter contraction for 5 seconds at the start of each stimulation ON cycle and to relax during the rest phase.

In the control intervention arm, participants will use identical electrical stimulation parameters but will remain relaxed during stimulation and will not perform active voluntary sphincter contractions. Both groups will receive standardized patient education, including device training and written instructions.

The intervention period will last 12 weeks. Study assessments will include the Vaizey/St. Mark's Incontinence Score, Fecal Incontinence Quality of Life scale, 14-day bowel diary, adherence assessment, adverse event monitoring, and high-resolution anorectal manometry. Optionally patients will be also assessed by endoanal ultrasound to detect possible structural abnormalities where clinical suspicion of these will be present. Assessments will be performed at baseline, week 12, and week 36 (as a post treatment follow up), with interim phone or secure online follow-up for adherence and safety. The primary endpoint is the mean change in Vaizey/St. Mark's Incontinence Score from baseline to week 12. Secondary endpoints include changes in weekly fecal incontinence episodes, FIQL subscales, anorectal manometry parameters, treatment adherence, adverse events, and sustained clinical improvement during follow-up.

Studientyp

Interventionell

Einschreibung (Geschätzt)

24

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Studienorte

  • Slowakei
      • Martin, Slowakei, 03601
        • Rekrutierung
        • Clinic of Internal Medicine- Gastroenterology, University Hospital Martin
        • Kontakt:
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Signed informed consent
  • Age ≥18 years
  • Diagnosis of fecal incontinence (urge, passive, or mixed type) with at least 1 episode of involuntary stool leakage requiring hygiene intervention or underwear change per month for ≥3 months
  • Vaizey (St. Mark's) Incontinence Score ≥8
  • Ability to understand study procedures and comply with the 12-week home intervention
  • Willingness to attend all study visits and assessments
  • Stable medical management for fecal incontinence for at least 4 weeks prior to enrollment

Exclusion Criteria:

  • Complete spinal cord injury above the conus medullaris
  • Active inflammatory bowel disease flare requiring systemic therapy or not in clinical remission
  • Rectal prolapse requiring surgical intervention
  • Severe symptomatic hemorrhoids interfering with anorectal assessments or device use
  • Active anal fissure or perianal fistula
  • Active colorectal cancer or history of colorectal cancer within 5 years
  • Colorectal surgery within the previous 6 months
  • Pregnancy or planned pregnancy during study participation
  • Implanted cardiac pacemaker or defibrillator
  • Other implanted electrical devices contraindicating electrical stimulation
  • Previous specialized pelvic floor physiotherapy, biofeedback therapy, EMG-guided rehabilitation, or anal electrical stimulation within 3 months prior to randomization
  • Cognitive impairment preventing understanding of study procedures or informed consent
  • Uncontrolled severe diarrhea (>5 liquid stools/day)
  • Anal stenosis preventing probe insertion
  • Severe anal sphincter defect (>120° on ultrasound) requiring surgical repair
  • Isolated severe rectal sensory dysfunction without significant sphincter dysfunction
  • Previous pelvic radiotherapy
  • Concurrent participation in another interventional clinical trial

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Electrical Stimulation + Active Contraction
Home-based anal electrical stimulation combined with synchronized active voluntary anal sphincter contraction for 12 weeks
Gerät: Home-based anal electrical stimulator
Home-based anal electrical stimulation delivered using the NeuroTrac Continence device. Stimulation parameters include frequency 40 Hz, pulse width 250 µs, 5 seconds ON and 10 seconds OFF cycles, 1-second ramp-up, session duration 25 minutes, and patient-adjusted intensity up to the maximum tolerable level without pain.
Aktiver Komparator: Electrical Stimulation Alone
Home-based anal electrical stimulation alone without active voluntary sphincter contraction for 12 weeks.
Gerät: Home-based anal electrical stimulator
Home-based anal electrical stimulation delivered using the NeuroTrac Continence device. Stimulation parameters include frequency 40 Hz, pulse width 250 µs, 5 seconds ON and 10 seconds OFF cycles, 1-second ramp-up, session duration 25 minutes, and patient-adjusted intensity up to the maximum tolerable level without pain.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Vaizey (St. Mark's) Incontinence Score From Baseline to Week 12
Zeitfenster: Baseline to Week 12
Mean change in Vaizey (St. Mark's) Incontinence Score between baseline and week 12. The Vaizey score ranges from 0 to 24, with higher scores indicating more severe fecal incontinence symptoms.
Baseline to Week 12

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Weekly Fecal Incontinence Episodes From Baseline to Week 12
Zeitfenster: Baseline to Week 12
Mean change in the number of weekly fecal incontinence episodes recorded in a 14-day bowel diary.
Baseline to Week 12
Proportion of Participants Achieving ≥30% Reduction in Vaizey Score at Week 12
Zeitfenster: Week 12
Percentage of participants achieving at least a 30% reduction in Vaizey (St. Mark's) Incontinence Score compared with baseline.
Week 12
Sustained Improvement in Vaizey Score at Week 36
Zeitfenster: Baseline to Week 36
Mean change in Vaizey (St. Mark's) Incontinence Score at long-term follow-up compared with baseline.
Baseline to Week 36
Change in Maximum Squeeze Pressure on High-Resolution Anorectal Manometry
Zeitfenster: Baseline to Week 12
Mean change in maximum squeeze pressure measured by high-resolution anorectal manometry (HRAM).
Baseline to Week 12
Change in Resting Anal Pressure on High-Resolution Anorectal Manometry
Zeitfenster: Baseline to Week 12
Mean change in resting anal pressure measured by high-resolution anorectal manometry (HRAM).
Baseline to Week 12
Change in Squeeze Endurance on High-Resolution Anorectal Manometry
Zeitfenster: Baseline to Week 12
Mean change in squeeze endurance measured during HRAM assessment.
Baseline to Week 12
Treatment Adherence Rate
Zeitfenster: During the 12-week intervention period
Percentage of prescribed home stimulation sessions completed during the 12-week intervention period
During the 12-week intervention period
Incidence of Adverse Events and Device-Related Complications
Zeitfenster: Baseline to Week 36
Number and type of adverse events and device-related complications reported during the study period.
Baseline to Week 36
Change in Fecal Incontinence Quality of Life (FIQL) Scores
Zeitfenster: Baseline to Week 12
Mean change in FIQL subscale scores (Lifestyle, Coping/Behavior, Depression/Self-Perception, and Embarrassment) from baseline. FIQL subscale scores range from 1 to 4, with higher scores indicating better quality of life.
Baseline to Week 12

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University Hospital, Martin

Mitarbeiter

Comenius University

Ermittler

  • Studienleiter: Peter Liptak, MD, PhD, Clinic of Internal Medicine- Gastroenterology, University Hospital Martin, Jessenous Faculty of Medicine in Martin, Comenius University, Slovakia

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

15. Mai 2026

Primärer Abschluss (Geschätzt)

1. Mai 2029

Studienabschluss (Geschätzt)

1. Mai 2029

Studienanmeldedaten

Zuerst eingereicht

17. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

17. Mai 2026

Zuerst gepostet (Tatsächlich)

22. Mai 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

28. Mai 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

22. Mai 2026

Zuletzt verifiziert

1. Mai 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • EK38/2026

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

De-identified individual participant data underlying the reported study results may be shared upon reasonable request to the principal investigator following publication of the primary results. Data sharing will be considered for methodologically sound research proposals and in accordance with institutional policies, ethical approval requirements, and applicable data protection regulations (including GDPR).

IPD-Sharing-Zeitrahmen

Beginning 6 months after publication of the primary study results and ending 5 years after publication

IPD-Sharing-Zugriffskriterien

Access will be provided to qualified researchers whose proposed use of the data has been approved by the study investigators and relevant institutional authorities. A data access agreement may be required.

Art der unterstützenden IPD-Freigabeinformationen

  • STUDIENPROTOKOLL
  • SAFT

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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