Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 and up

Treatment for complex anal fistulas using regenerative cells

Official title: Repairing Peri-Anal Fistulas With Regenerative Cell Therapeutics

Run by University of Southern Denmark · NCT06303752 · Data updated 2026-11-12

This study is testing a new treatment for complex anal fistulas that uses cells from the patient's own body or specially grown cells to see if it helps heal the condition better than current methods.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment75 (estimated)
SponsorUniversity of Southern Denmark
Academic / other
Locations1 site (Odense)
StatusRecruiting
StartedOctober 9, 2024
Main results expectedOctober 8, 2027
Study endsOctober 8, 2028
Registry record updatedNovember 5, 2024
Trial IDNCT06303752 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with complex anal fistulas involving more than 30% of the anal sphincter.

Probably not a fit

Patients with simple anal fistulas or those with conditions such as inflammatory bowel disease or malignancy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical study evaluates the effectiveness of a combined approach involving minimal surgical debridement and regenerative cellular therapeutics for treating complex perianal fistulas. Eligible adult patients will undergo a preoperative assessment and, if accepted, will receive treatment that includes liposuction from the abdominal wall followed by injection of regenerative cells around the fistula tract. The study will randomize participants to receive either their own regenerative cells or cultured regenerative cells in a double-blinded manner. Follow-up assessments will occur at 3, 6, and 12 months post-treatment to evaluate outcomes.

Why it matters

Potential benefit: If successful, this treatment could significantly improve healing rates and quality of life for patients suffering from complex anal fistulas.

How similar studies have gone: While regenerative cell therapies are emerging, this specific combination approach is novel and has not been extensively tested in similar studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criterion:

Adult patients (\>= 18years) with complex anal fistula (high transsphincteric or suprasphincteric), with involvement of more 30% of the anal sphincter referred to the surgical department at Odense University Hospital for treatment, and who are:

* able to communicate with Danish language
* able to provide informed consent
* having address in the region of southern Denmark during the study

Exclusion criteria:

1. Signs of suppuration/cavitation around the fistula
2. Simple or low anal fistula, which can be treated by simple surgical incision
3. Ano-vaginal and recto-vaginal fistula
4. The presence of more than one fistula tract, more than two external orifices or more than one internal orifice
5. Inflammatory Bowel Disease
6. Immunosuppression (due to clinical condition or medical therapy)
7. Malignancy within 5 years
8. Previous radiotherapy of the abdomen and pelvis
9. BMI under 18.5
10. Allergy against the antibiotics: Penicillin and streptomycin.
11. Coagulopathy
12. Pregnancy and lactation (positive HCG (human chorionic gonadotropin) test)
13. Verified syphilis, HIV, or hepatitis on screening test

Where it's running

  • Odense University Hospital
    Odense, Denmark
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • Recurrence and Patient-Reported Outcomes after Anal Fistula Surgery

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    This study is testing if a special recovery plan can help people aged 18 to 65 have fewer problems with urinary retention after surgery for conditions like hemorrhoids and anal fissures.

    Recruiting Mansoura University · Al Mansurah · NCT06803550

  • Treatment of anal fistulas using stem cells

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  • Evaluating RD2 Ver.02 for managing anal fistulas

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    Recruiting at 9 sites RedDress Ltd. · Los Angeles, California and 9 other locations · NCT05641844

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.