Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 18 to 79

Using Botulinum Toxin A to Improve Surgery for Large Incisional Hernias

Official title: Surgical Treatment of Large Incisional Hernia with Botulinum Toxin a Injection: a Double-blind Randomized Controlled Trial

Run by Assistance Publique - Hôpitaux de Paris · NCT06499324 · Data updated 2026-11-12

This study is testing if injections of Botulinum Toxin A can help make surgery easier and more successful for people with large incisional hernias.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 79 Years
SexAll
Enrollment260 (estimated)
SponsorAssistance Publique - Hôpitaux de Paris
Academic / other
Locations1 site (Colombes, France)
StatusRecruiting
StartedJanuary 17, 2025
Main results expectedAugust 4, 2028
Study endsMarch 4, 2029
Registry record updatedJanuary 22, 2025
Trial IDNCT06499324 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 79 with a midline incisional hernia of at least 10 cm in width and without loss of domain.

Probably not a fit

Patients with other types of hernias, severe infection risks, or those requiring specific surgical techniques 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 trial investigates the use of Botulinum Toxin A (BTA) injections to facilitate the surgical repair of large incisional hernias, which are challenging to treat due to muscle retraction and separation. The study compares outcomes between patients receiving BTA and those receiving a placebo, aiming to reduce postoperative morbidity and improve surgical closure success. By inducing temporary muscle paralysis, BTA may help relax the abdominal muscles, making it easier to close the hernia without complex surgical techniques. The trial includes patients aged 18 to 79 with specific criteria related to hernia size and type.

Why it matters

Potential benefit: If successful, this approach could significantly reduce surgical complications and improve recovery for patients with large incisional hernias.

How similar studies have gone: Retrospective studies have suggested that similar approaches using BTA for muscle relaxation have shown promise, indicating potential for success in this prospective trial.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients between 18 and 79 years;
2. BMI \< 35 kg/m²;
3. Midline anterior primary or recurrent IH (subxiphoidal to suprapubic), of width \>= 10 cm, on the abdominopelvic CT without injection of contrast agent, performed in the 6 months before inclusion (EHS W3);
4. IH without loss of domain, defined by the ratio: (volume of the peritoneal sac) / (total peritoneal volume) \< 25%, on the abdominal CT without injection of contrast agent, performed in the 6 months before inclusion;
5. Written informed consent;
6. Scheduled surgery for an open IH repair;
7. For female of childbearing potential: using highly effective contraception.

Exclusion Criteria:

1. Other types of IH (lateral, groin, para-stomal, portsite);
2. VHWG grades 3 or 4 for the risk of surgical site infection;
3. Ongoing skin infection or inflammation at the IH site or at the BTA injection site;
4. Planned IH repair with slowly absorbable mesh;
5. IH with loss of domain (volumetric ratio \> 25%);
6. Emergency IH surgery;
7. ASA score \> 3;
8. Pregnancy or breastfeeding;
9. Ongoing treatment with aminoglycosides;
10. Severe hemostasis disorder or non-weaning treatment with curative dose anticoagulant;
11. Active tobacco use (or cessation inferior to 3 months);
12. Use of another investigational product within 6 months or 5 half-lives (whichever is longer), or currently participating in a prospective study with an investigational product, whether it concerns an experimental drug or a medical device;
13. Patient not covered by social insurance;
14. Patient under legal guardianship;
15. Hypersensitivity to the active substance (Clostridium Botulinum neurotoxin type A) or to any of the excipients (Human albumin, sucrose);
16. Generalized disorders of muscle activity (e.g. myasthenia gravis, Lambert-Eaton syndrome, peripheral motor neuropathic diseases (e.g. amyotrophic lateral sclerosis or motor neuropathy), facial nerve disorders, underlying neurological disorders) and history of dysphagia and aspiration);
17. Patient with ongoing treatment with medicinal products that interfere with the transfer of an impulse from a nerve to a muscle, e.g. tubocurarine-type muscle relaxants that weaken the muscles;
18. Patient with severe and uncontrolled cardiovascular diseases;
19. Patient has received BTA within 12 weeks;
20. Patients with a history of seizures.

Where it's running

  • David Moszkowicz
    Colombes, France, France
    Recruiting

Study contacts

Similar studies

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

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.