Complex Anal FistulaPhase 2NCT01612195
Success Rate, Continence, and Quality of Life With a Bioprosthetic Plug for Treating Complex Anal Fistula
A Phase 2 study testing Anal fistula plug in people with Complex Anal Fistula, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.
Trial summary
Anal abscess-fistula disease is of common occurrence and has a significant impact on the quality of life of affected individuals. The course of abscess-fistula disease as well as its treatment modalities may affect anal continence. The present cohort study investigates the results of anal fistula plug surgery. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Complex Anal Fistula
- What is being tested?
- Anal fistula plug
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 46 participants
- Where
- 1 siteSwitzerland
- Study dates
- Jan 2007to Jan 2012
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Complex anal fistula as defined by
- high transsphincteric fistula
- extrasphincteric fistula
- suprasphincteric fistula
- recurrent fistula
- multiple fistula openings, including horseshoe fistula
- imperfect continence- jeopardized anal continence (anterior transsphincteric fistula, prior anal surgery)
Who cannot join
- Uncomplicated fistula curable by simple fistulotomy
- History of inflammatory bowel disease
- Chronic immunosuppressive treatment (ie, systemic steroids for >3 days)
- Clinical heart failure as defined by a CCS angina severity class ≥ III
- Untreated cancer or cancer diagnosed/treated (all modalities) within 6 months
- Estimated life expectancy inferior to 6 months
- Incompetent subject
- Pregnancy
Trial locations and contacts
1 site in 1 country.
Switzerland1 site
University of Basel & Kantonsspital St.Gallen
Basel & St.Gallen, 4031 & 9007
About this study
Anal abscess-fistula disease is of common occurrence and has a significant impact on the quality of life of affected individuals. The course of abscess-fistula disease as well as its treatment modalities may affect anal continence. The present cohort study investigates the results of anal fistula plug surgery. In particular, this study focus on the impact of anal fistula plug surgery on fistula healing, quality of life, and anal continence. Fifty patients will be included and followed up at 6 weeks and 6 months after surgery in the clinic of participating surgeons.
Read the detailed description
Anal abscess-fistula disease is of common occurrence and has a significant impact on the quality of life of affected individuals. The clinical course of abscess-fistula disease as well as its treatment modalities may affect anal continence. Anal fistula plug surgery is an Health Canada and FDA approved surgical treatment that has demonstrated promising results in terms of fistula healing and minimal patients' burden. The present cohort study prospectively investigates the results of anal fistula plug surgery performed in teaching hospitals affiliated to the University of Toronto. In particular, this study focus on the impact of anal fistula plug surgery on health-related quality of life, and its 2 major determinants anal continence and fistula healing. Fifty patients will be included and followed up at 6 weeks and 6 months after surgery in the clinic of participating surgeons. Quality of life and anal continence will be measured with the validated Short Form-36 Health Survey (SF-36 v2) and Fecal Incontinence Score Index (FISI) questionnaires, respectively. It is expected that the present study will provide objective information on the results and generalizability of anal fistula surgery, as well as on its impact on health-related quality of life and anal continence.
- Conditions
- Complex Anal Fistula
- Being tested
- Anal fistula plug
- Keywords
- anal fistula, anal continence, health-related quality of life
- Medical subject headings
- Rectal Fistula
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Anal fistula plugProcedure or surgery
Also called Anal fistula plug Surgisis®
All patients have a draining seton for at least 6 weeks prior placement of the anal fistula plug. All patients are administered a general anesthetic and are operated in the lithotomy position. The seton is removed, but no curettage or irrigation of the fistula tract is performed. The plug is inserted through the internal opening, and pulled through the external opening until it fit snugly and its base is sutured to the internal sphincter with 2 interrupted 2-0 polyglactin 910 sutures. The tip of the plug is cut at skin level and not sutured. The external opening is left open to allow for drainage. The patient is instructed to restrict physical and sexual activity for 2 weeks postoperatively. Patients are seen in the post-operative clinic at 10 days, 6 weeks and 6 months as per protocol.
| Study group | Role | What they receive |
|---|---|---|
| Anal fistula plug | Experimental | Not described Receives: Procedure: Anal fistula plug |
What is being measured
The primary outcome is the main question the study is designed to answer.
Fistula healing
Clinical healing of a complex anal fistula as assessed in the clinic at 6 weeks and 6 months after anal fistula plug surgery. Further assessment prn.
Measured: 6 months
Anal continence
Evaluation of anal continence by means of a validated questionnaire, namely the Fecal Incontinence Severity Index, at 6 weeks and 6 months after anal fistula plug surgery.
Measured: 6 months
Quality of life
Evaluation of health-related quality of life by means of a validated questionnaire, namely the Short-Form 36 version 2, at 6 weeks and 6 months after anal fistula plug surgery.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Jun 2012 (estimated)
- Study startJan 2007
- Primary completionMar 2009
- Study completionJan 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Complex Anal FistulaStudies of the same condition, open and under way.
- More trials run by University Hospital, Basel, SwitzerlandThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 46 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Basel, Switzerland
- Sponsor type
- University, hospital or other
- Collaborators
- Unity Health Toronto, Women's College Hospital, St. Claraspital AG, Mount Sinai Hospital, Canada
- Responsible party
- Principal investigator, Michel Adamina, MD, PD, MSc, University Hospital, Basel, Switzerland
- Investigators
- Michel Adamina, MD, PD, MSc, Principal investigator, University of Basel
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01612195
- Sponsor's protocol ID
- AFP-2
- Status last verified
- May 2013
- First submitted
- 2 Jun 2012
- Last updated
- 17 May 2013
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 May 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Success Rate, Continence, and Quality of Life With a Bioprosthetic Plug for Treating Complex Anal Fistula
- ClinicalTrials.gov ID
- NCT01612195
- Acronym / sponsor ID
- AFP-2
- Conditions
- Complex Anal Fistula
- Keywords
- anal fistula, anal continence, health-related quality of life
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 46 participants (actual)
- Lead sponsor
- University Hospital, Basel, SwitzerlandUniversity, hospital or other
- Collaborators
- Unity Health Toronto, Women's College Hospital, St. Claraspital AG, Mount Sinai Hospital, Canada
- Study start
- Jan 2007
- Primary completion
- Mar 2009 (actual)
- Study completion
- Jan 2012 (actual)
- First posted
- 5 Jun 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Anal abscess-fistula disease is of common occurrence and has a significant impact on the quality of life of affected individuals. The course of abscess-fistula disease as well as its treatment modalities may affect anal continence. The present cohort study investigates the results of anal fistula plug surgery. In particular, this study focus on the impact of anal fistula plug surgery on fistula healing, quality of life, and anal continence. Fifty patients will be included and followed up at 6 weeks and 6 months after surgery in the clinic of participating surgeons.
Detailed description
Anal abscess-fistula disease is of common occurrence and has a significant impact on the quality of life of affected individuals. The clinical course of abscess-fistula disease as well as its treatment modalities may affect anal continence. Anal fistula plug surgery is an Health Canada and FDA approved surgical treatment that has demonstrated promising results in terms of fistula healing and minimal patients' burden. The present cohort study prospectively investigates the results of anal fistula plug surgery performed in teaching hospitals affiliated to the University of Toronto. In particular, this study focus on the impact of anal fistula plug surgery on health-related quality of life, and its 2 major determinants anal continence and fistula healing. Fifty patients will be included and followed up at 6 weeks and 6 months after surgery in the clinic of participating surgeons. Quality of life and anal continence will be measured with the validated Short Form-36 Health Survey (SF-36 v2) and Fecal Incontinence Score Index (FISI) questionnaires, respectively. It is expected that the present study will provide objective information on the results and generalizability of anal fistula surgery, as well as on its impact on health-related quality of life and anal continence.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Anal fistula plug | Experimental | Procedure: Anal fistula plug |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Complex anal fistula as defined by
- high transsphincteric fistula
- extrasphincteric fistula
- suprasphincteric fistula
- recurrent fistula
Key exclusion criteria (8 listed)
- Uncomplicated fistula curable by simple fistulotomy
- History of inflammatory bowel disease
- Chronic immunosuppressive treatment (ie, systemic steroids for >3 days)
- Clinical heart failure as defined by a CCS angina severity class ≥ III
- Untreated cancer or cancer diagnosed/treated (all modalities) within 6 months
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Anal fistula plugAlso: Anal fistula plug Surgisis®All patients have a draining seton for at least 6 weeks prior placement of the anal fistula plug. All patients are administered a general anesthetic and are operated in the lithotomy position. The seton is removed, but no curettage or irrigation of the fistula tract is performed. The plug is inserted through the internal opening, and pulled through the external opening until it fit snugly and its base is sutured to the internal sphincter with 2 interrupted 2-0 polyglactin 910 sutures. The tip of the plug is cut at skin level and not sutured. The external opening is left open to allow for drainage. The patient is instructed to restrict physical and sexual activity for 2 weeks postoperatively. Patients are seen in the post-operative clinic at 10 days, 6 weeks and 6 months as per protocol. | Procedure or surgery | Anal fistula plug |
Primary outcome
Fistula healing
Time frame: 6 months
Clinical healing of a complex anal fistula as assessed in the clinic at 6 weeks and 6 months after anal fistula plug surgery. Further assessment prn.
Anal continence
Time frame: 6 months
Evaluation of anal continence by means of a validated questionnaire, namely the Fecal Incontinence Severity Index, at 6 weeks and 6 months after anal fistula plug surgery.
Quality of life
Time frame: 6 months
Evaluation of health-related quality of life by means of a validated questionnaire, namely the Short-Form 36 version 2, at 6 weeks and 6 months after anal fistula plug surgery.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 May 2013.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michel Adamina, MD, PD, MSc principal investigator
University of Basel
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Anal fistula plug in people with Complex Anal Fistula, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 May 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Fistula healing (time frame: 6 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 May 2013; AzTrials last refreshed its copy on 8 Nov 2026.