Status:

COMPLETED

The Effect of Subcutaneous Injection of Botulinum Toxin A on Chronic Wound Pain in Lower Extremities

Lead Sponsor:

Bispebjerg Hospital

Conditions:

Chronic Pain

Lower Extremity Wound

Eligibility:

All Genders

18+ years

Phase:

PHASE4

Brief Summary

The aim of the study is to investigate the effect of subcutaneous administration of Botulinum toxin A on wound pain, wound healing and safety of treatment.

Eligibility Criteria

Inclusion

  • Age ≥ 18 years old.
  • Lower extremity ulcer ≥ 4 weeks.
  • Ulcer area ≥ 1,5 cm2 and ≤ 20 cm2
  • Patients with neuropathic pain related to the ulcer (daily VAS pain scores ≥ 30 mm at rest and DN4 score ≥ 4).
  • Normal monofilament and vibration test in lower extremities.
  • Patients who can fill out pain diary correctly.
  • Written informed consent to participate in the study after having fully understood the contents of the protocol and restrictions.

Exclusion

  • 1\. Infection at injection site. 2. Hypersensitivity to botulinum toxin A. 3. Peripheral neuropathy. 3. Diabetic foot ulcer. 4. Unstable critic peripheral ischemia judged by investigator 5. Exposed capsule, tendon, muscle or bone in the ulcers. 6. Tunnelling, undermining or sinus tracts. 7. Disorders of the neuromuscular junction (e.g. Myasthenia). 8. Topical analgesic (e.g Biatain ibu or Lidocain) within 7 days before inclusion.
  • 9\. Pregnant or lactating woman and woman with childbearing potential but does not use contraception.
  • 10\. Judgment by the investigator that the patient is not suited for study participation.

Key Trial Info

Start Date :

February 7 2023

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

April 23 2024

Estimated Enrollment :

10 Patients enrolled

Trial Details

Trial ID

NCT05426161

Start Date

February 7 2023

End Date

April 23 2024

Last Update

August 9 2024

Active Locations (1)

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1

Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital

Copenhagen, Denmark