Actively Recruiting

Phase Not Applicable
Age: 18Years - 70Years
All Genders
ID07268261

Combined Method of Surgical Treatment of Anal Fissure

Led by State Scientific Centre of Coloproctology, Russian Federation · Updated on 2025-12-05

122

Participants Needed

1

Research Sites

39 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating treatment options for patients with chronic anal fissure, a painful rupture of the anal canal mucous membrane lasting over two months and resistant to non-surgical treatments. This condition mainly affects young and able-bodied adults and is caused by spasms of the internal anal sphincter muscle. The study aims to improve treatment outcomes by reducing the frequency and duration of anal sphincter insufficiency after relieving these spasms. Participants will undergo excision of the anal fissure combined with relaxation of the internal sphincter using botulinum toxin type A. The treatment involves injecting 40 units of botulinum toxin into the internal anal sphincter at four specific locations. The study compares this combined approach to similar treatment methods and includes an additional injection of platelet-rich plasma. Patients are randomized into either the main group or control group, both receiving the same interventions. During the trial, researchers will monitor anal sphincter insufficiency over 60 days as the primary outcome. Secondary outcomes include pain intensity, wound healing, sphincter function measurements, temporary disability, and disease relapse, assessed at various intervals up to one year. Participants will be closely observed throughout these periods with clinical evaluations to track treatment effects and safety.

CONDITIONS

Brief Title

Combined Method of Surgical Treatment of Anal Fissure

Who Can Participate

Age: 18Years - 70Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patients with chronic anal fissure accompanied by spasm of the anal sphincter
  • Aged between 18 and 70 years
  • All genders are eligible
Not Eligible

You will not qualify if you...

  • Inflammatory diseases of the colon, including pectenosis
  • Previous surgical interventions on the anal canal
  • Grade IV internal and external hemorrhoids
  • Rectal fistula
  • Severe somatic diseases at the decompensation stage
  • Pregnancy and lactation
  • Anal sphincter insufficiency
  • Chronic paraproctitis
  • Individual intolerance or hypersensitivity to botulinum toxin
  • Myasthenia gravis and related syndromes
  • History of allergic reaction to anticoagulants
  • Blood diseases such as thrombocytopenia or splenomegaly

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Surgery and Immediate Post-operative Care

Duration - Up to 60 days

Participants undergo excision of the anal fissure with injections of botulinum toxin A to relax the internal sphincter.

Approximately 4 visits on days 15, 30, 45, and 60

Trial Site Locations

Total: 1 location

1

SSCCRussia

Moscow, Russia, 123423

Actively Recruiting

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Research Team

E

Evgeny E. Zharkov, MD

E

Ekaterina Yu. Lebedeva

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Botulinum toxin injection versus lateral internal sphincterotomy for chronic anal fissure: a meta-analysis of randomized control trials.

H-L Chen, X-B Woo, H-S Wang...

https://pubmed.ncbi.nlm.nih.gov/24500725

Botulinum toxin injection versus lateral internal sphincterotomy for the treatment of chronic anal fissure: randomized prospective controlled trial.

Neda Valizadeh, Niloufar Yahyapour Jalaly, Mohsen Hassanzadeh...

https://pubmed.ncbi.nlm.nih.gov/22430300

Botulinum Toxin Injection for Treatment of Chronic Anal Fissure: Is There Any Dose-Dependent Efficiency? A Meta-Analysis.

Adam Bobkiewicz, Wojciech Francuzik, Lukasz Krokowicz...

https://pubmed.ncbi.nlm.nih.gov/27539490