CClinicalTrials.gg
Active, not recruitingNCT05594862ATTICUpdated Mar 27, 2026

Treatment of Crohn's Complex Perianal Fistulas With Tissue Transplantation by Local Injection of Micro-fragmented Autologous Adipose Tissue.

An interventional study of Lipogems in Crohn Disease, sponsored by Lipogems International spa. Active, not recruiting at 1 site in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-27.

Sponsored by Lipogems International spa · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

multicentre randomized controlled prospective study aimed at evaluating the efficacy of the infiltration of microfractured adipose tissue in the healing of perianal fistulas not-responding to treatment with biologics, in order to improve the quality of life and significantly reduce the risk of definitive ostomy.

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Conditions studied

  • Crohn Disease

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03

In context

Crohn Disease

1,880 studies on the registry are indexed under Crohn Disease; 462 are open to participants now.

This study's planned enrollment of 80 is above the median of 66 across 1,188 interventional studies indexed under Crohn Disease.

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Lead sponsor

Lipogems International spa is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • The patient's age is over 18 at the time of surgery.
  • The patient suffers from Crohn's disease confirmed by instrumental and histological methods.
  • The patient presents with complex perianal fistulising disease refractory to standard treatment (combination of surgical drainage of sepsis and local / systemic administration of anti-TNF-α for at least 1 year)
  • The patient received, understood and signed informed consent for active participation in the study.
  • The patient is able to understand the conditions of the study and to participate throughout the duration.

Exclusion criteria

Exclusion Criteria:

  • Patients with more than 1 internal and 3 external openings.
  • Patients with ileus / colo ostomy.
  • Patients with anus / rectum-vaginal fistulas.
  • Patients with active HIV infections, hepatitis C (HCV), hepatitis B (HBV), tuberculosis.
  • Patients with abdominal localization of Crohn's disease who may require general surgery during the study.
  • Patients with active oncological or lymphoproliferative diseases from which it was not possible to safely withdraw an adequate quantity of lipoaspirate (at least 60 cc).
  • Patients with clinical conditions that may compromise the success of the surgery or the follow-up.
  • Pregnant or breastfeeding women.
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
80 participants (estimated)

Study arms

  • Active comparator
    Lipogems

    surgical drainage with cone fistulectomy + infiltration of micro-fractured autologous adipose tissue at the level of the internal orifice

    Device: Lipogems

  • No intervention
    Placebo

    surgical drainage with cone fistulectomy + infiltration of physiological solution and suture point positioning at the internal orifice level

Interventions

  • DeviceLipogems

    Micro-fragmented adipose tissue infiltration

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What researchers measure

Primary outcomes

  1. Number of participants with Combined remission

    The primary outcome of the study will be the evaluation of the difference between the two experimental groups in terms of "combined remission" which will be defined at 24 weeks from surgery to clinical evaluation as "absence of drainage at a slight digital compression". of all treated external orifices that were draining at baseline and pelvic MRI as the absence of abscesses\> 3 mm in correspondence of the treated perianal fistulas

    Time frame: 24 weeks

Secondary outcomes

  1. Number of participants with Clinical remission

    Comparison between the two experimental groups in terms of clinical remission at 2 weeks (± 2 days), 4 weeks (± 2 days), 8 weeks (± 2 days), 12 weeks (± 3 days) and 24 weeks ± (5 days) from surgery (ie the closure of all external orifices treated that were draining at baseline despite a slight digital compression)

    Time frame: 2-4-8-12-24 weeks

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Study locations

1 site
  • IRCCS S Orsola Malpighi
    Bologna, Bologna, Italy
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References and documents

Study documents

  • Study protocol · Jan 11, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05594862
Lead sponsor
Lipogems International spa
Responsible party
Sponsor
First posted
Oct 26, 2022
Start date
Jan 9, 2023
Primary completion
Apr 9, 2025
Completion
Jun 9, 2026 (estimated)
Last update
Mar 27, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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