NCT05666609

Brief Summary

In this prospective, randomized trail, duration of non-cutting seton placement in patients with fistula-in-ano is evaluated.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
20mo left

Started Jan 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress67%
Jan 2023Dec 2027

First Submitted

Initial submission to the registry

December 18, 2022

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 28, 2022

Completed
4 days until next milestone

Study Start

First participant enrolled

January 1, 2023

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

September 8, 2025

Status Verified

August 1, 2025

Enrollment Period

5 years

First QC Date

December 18, 2022

Last Update Submit

August 31, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Recurrent fistula in ano

    6 months after initial surgery

  • Recurrent perianal abscess

    6 months after initial surgery

Study Arms (2)

Group 4weeks

ACTIVE COMPARATOR

Duration of placed seton 4 weeks

Procedure: placement of non-cutting seton (silicone)

Group 12weeks

ACTIVE COMPARATOR

Duration of placed seton 12 weeks

Procedure: placement of non-cutting seton (silicone)

Interventions

Treatment of Fistula in ano is conducted according to the institution's treatment guidelines. Silicon seton placement is conducted under general anesthesia. Identification of the FIA is secured by the insertion of a bulb-headed lacrimal probe, on which a silicon vessel loop is attached and pulled through the entire fistulous tract. In case of a perianal abscess, drainage and sphincter-sparing debridement is performed followed by secondary wound healing. The loop is ligated loosely outside the anus without any additional tension to the skin. Duration of placed seton is depending on group assignment and is set to either 4 or 12 weeks.

Group 12weeksGroup 4weeks

Eligibility Criteria

AgeUp to 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • any patient with FIA and treatment with non-cutting seton placement in our institution
  • regardless of underlying diagnoses
  • age 0-18 years

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Friedrich-Alexander-Universität Erlangen-Nürnberg, Pediatric Surgery

Erlangen, Bavaria, 91054, Germany

RECRUITING

MeSH Terms

Conditions

Rectal Fistula

Interventions

Silicones

Condition Hierarchy (Ancestors)

Intestinal FistulaDigestive System FistulaDigestive System DiseasesIntestinal DiseasesGastrointestinal DiseasesRectal DiseasesFistulaPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

SiloxanesOrganosilicon CompoundsOrganic ChemicalsPolymersMacromolecular SubstancesBiomedical and Dental MaterialsManufactured MaterialsTechnology, Industry, and Agriculture

Study Officials

  • Sonja Diez, MD

    Friedrich-Alexander-Universität Erlangen-Nürnberg

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Masking is not possible due to study design.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Group A: duration of placed seton 4 weeks Group B: duration of placed seton 12 weeks
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical Doctor

Study Record Dates

First Submitted

December 18, 2022

First Posted

December 28, 2022

Study Start

January 1, 2023

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

September 8, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations