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Comparative Evaluation of Intraneuroma and Perineuroma Botulinum Toxin Type A Injection Techniques for Chronic Neuroma Pain After Combat-Related Amputation (IN-PERI NEUROM)

30. Mai 2026 aktualisiert von: Dmytro Dmytriiev, Ukrainian Society of Regional Anesthesia and Pain Therapy

Comparative Evaluation of Intraneuroma and Perineuroma Botulinum Toxin Type A Injection Techniques for Chronic Neuroma Pain After Combat-Related Amputation: A Prospective Multicenter Study

Patients with combat-related amputations frequently experience chronic neuroma pain that may interfere with rehabilitation, prosthesis use, mobility, sleep, and quality of life. Ultrasound-guided botulinum toxin type A injection has emerged as a potential treatment option for persistent neuroma pain; however, the optimal injection technique remains unclear.

This prospective multicenter study aims to compare two ultrasound-guided botulinum toxin injection techniques for chronic neuroma pain after combat-related amputation: intraneuroma injection and perineuroma injection.

Participants with ultrasound-confirmed painful neuromas will undergo one of the two injection approaches based on the treating physician's clinical decision and local practice. Pain intensity, neuropathic pain characteristics, phantom limb pain, prosthesis tolerance, functional outcomes, and adverse events will be evaluated during follow-up.

The goal of the study is to evaluate the feasibility, safety, and potential clinical effectiveness of intraneuroma and perineuroma botulinum toxin type A injection techniques in patients with chronic neuroma pain following combat-related amputation.

Studienübersicht

Status

Noch keine Rekrutierung

Detaillierte Beschreibung

Chronic neuroma pain is a common and disabling complication following combat-related limb trauma and amputation. Persistent neuroma pain may contribute to residual limb pain, phantom limb pain, impaired prosthesis tolerance, reduced mobility, sleep disturbance, and decreased quality of life. Ultrasound-guided botulinum toxin type A injection has emerged as a promising treatment option because of its potential effects on peripheral nociceptive signaling, neurogenic inflammation, and neuropathic pain modulation.

However, the optimal injection technique for botulinum toxin administration in painful neuromas remains unclear. Two commonly used approaches include direct intraneuroma injection and perineuroma injection surrounding the neuroma. Intraneuroma injection may provide more direct pharmacological modulation of pathological nerve tissue, whereas perineuroma injection may reduce the risk of mechanical nerve injury while still targeting peripheral sensitization mechanisms.

This prospective multicenter study is designed to evaluate the feasibility, safety, and clinical outcomes associated with intraneuroma and perineuroma ultrasound-guided botulinum toxin type A injection techniques in patients with chronic neuroma pain after combat-related amputation.

Patients with ultrasound-confirmed painful neuromas will undergo ultrasound-guided botulinum toxin type A injection using one of the two injection techniques according to local clinical practice and physician decision-making. Clinical follow-up will include assessment of neuroma pain intensity, neuropathic pain characteristics, phantom limb pain, residual limb pain, prosthesis tolerance, analgesic consumption, patient-reported improvement, and adverse events.

The study aims to improve understanding of ultrasound-guided botulinum toxin injection strategies for chronic neuroma pain and to identify potential differences in safety and clinical effectiveness between intraneuroma and perineuroma approaches in patients with combat-related amputations.

Studientyp

Interventionell

Einschreibung (Geschätzt)

100

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

      • Kyiv, Ukraine, 03143
        • Feofaniya Clinical Hospital
        • Kontakt:
          • Andrii Khomenko, MD
          • Telefonnummer: +380937635858
          • E-Mail: farmen@ukr.net
    • Вінницька
      • Vinnytsia, Вінницька, Ukraine, 21000
        • Vinnitsya university hospital
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Age ≥18 years
  • Combat-related limb amputation
  • Chronic neuroma pain lasting ≥3 months
  • Ultrasound-confirmed painful neuroma
  • Average neuroma pain intensity ≥4/10 on the Numeric Rating Scale
  • Ability to undergo ultrasound-guided injection
  • Stable analgesic regimen for at least 14 days before enrollment
  • Ability to provide written informed consent

Exclusion Criteria:

  • Active infection at or near the injection site
  • Open wound preventing safe injection
  • Previous botulinum toxin injection for neuroma pain within 6 months
  • Previous neuroma surgery within 3 months
  • Known allergy to botulinum toxin type A
  • Coagulopathy or anticoagulation contraindicating injection
  • Severe uncontrolled systemic disease
  • Inability to complete follow-up assessments

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Intraneuroma Botulinum Toxin Type A Injection
Ultrasound-guided direct intraneuroma injection of botulinum toxin type A for treatment of chronic neuroma pain after combat-related amputation.
Ultrasound-guided botulinum toxin type A injection performed for treatment of chronic neuroma pain after combat-related amputation. Two injection techniques will be evaluated: direct intraneuroma injection and perineuroma injection surrounding the neuroma. Procedures will be performed under sterile conditions using high-frequency musculoskeletal ultrasound guidance by clinicians experienced in ultrasound-guided pain interventions.
Andere Namen:
  • Ultrasound-Guided Botulinum Toxin Injection
Experimental: Perineuroma Botulinum Toxin Injection
Ultrasound-guided perineuroma injection of botulinum toxin type A surrounding the neuroma for treatment of chronic neuroma pain after combat-related amputation.
Ultrasound-guided botulinum toxin type A injection performed for treatment of chronic neuroma pain after combat-related amputation. Two injection techniques will be evaluated: direct intraneuroma injection and perineuroma injection surrounding the neuroma. Procedures will be performed under sterile conditions using high-frequency musculoskeletal ultrasound guidance by clinicians experienced in ultrasound-guided pain interventions.
Andere Namen:
  • Ultrasound-Guided Botulinum Toxin Injection

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in chronic neuroma pain intensity
Zeitfenster: Baseline to 12 weeks after injection

Change in chronic neuroma pain intensity will be assessed using the 11-point Numeric Rating Scale (NRS). Participants will rate their average neuroma-related pain during the previous 7 days on a scale from 0 to 10, where 0 indicates "no pain" and 10 indicates "worst imaginable pain." The change from baseline NRS score will be calculated at each follow-up assessment.

Scale Information:

Numeric Rating Scale (NRS)

Minimum Value:

0

Maximum Value:

10 Interpretation: Higher scores indicate greater chronic neuroma pain intensity and worse clinical outcomes. Negative change from baseline indicates improvement.

Baseline to 12 weeks after injection

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Neuropathic Pain Characteristics Assessed Using the painDETECT Questionnaire (PD-Q)
Zeitfenster: Baseline to 12 and 24 weeks

Neuropathic pain characteristics will be assessed using the painDETECT Questionnaire (PD-Q), a validated self-administered questionnaire designed to identify and quantify neuropathic pain symptoms. The questionnaire evaluates sensory descriptors, pain course pattern, and pain radiation. Total scores range from -1 to 38.

Scale Information:

painDETECT Questionnaire (PD-Q)

Minimum Value:

-1

Maximum Value:

38

Interpretation:

Higher scores indicate more pronounced neuropathic pain characteristics and a greater likelihood of neuropathic pain.

Clinical Interpretation:

≤12 = Neuropathic pain unlikely 13-18 = Uncertain neuropathic pain component

≥19 = Neuropathic pain likely

Baseline to 12 and 24 weeks
Residual Limb Pain Intensity
Zeitfenster: Baseline to 12 and 24 weeks

Residual limb pain intensity will be assessed using the 11-point Numeric Rating Scale (NRS). Participants will rate their average residual limb pain during the previous 7 days on a scale from 0 ("no pain") to 10 ("worst imaginable pain").

Scale Information:

Numeric Rating Scale (NRS) Minimum Value: 0 Maximum Value: 10 Interpretation: Higher scores indicate greater residual limb pain intensity and worse pain outcomes.

Baseline to 12 and 24 weeks
Prosthesis Tolerance Assessed Using Average Daily Prosthesis Wearing Time
Zeitfenster: Baseline, 3 months, 6 months, and 12 months after amputation or intervention.

Prosthesis tolerance will be assessed by measuring the average daily duration of prosthesis use reported by the participant. Average daily prosthesis wearing time will be recorded as the total number of hours the prosthesis is worn during a typical day.

Measurement:

Average daily prosthesis wearing time

Unit of Measure:

Hours per day (hours/day)

Minimum Value:

0 hours/day

Maximum Value:

24 hours/day Interpretation: Higher values indicate better prosthesis tolerance, greater comfort during use, and improved adaptation to the prosthesis.

Baseline, 3 months, 6 months, and 12 months after amputation or intervention.

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Ermittler

  • Hauptermittler: Andrii Khomenko, MD, Feofaniya Clinical Hospital

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

27. Mai 2026

Primärer Abschluss (Geschätzt)

27. Mai 2026

Studienabschluss (Geschätzt)

15. Dezember 2026

Studienanmeldedaten

Zuerst eingereicht

23. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

30. Mai 2026

Zuerst gepostet (Tatsächlich)

3. Juni 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

3. Juni 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

30. Mai 2026

Zuletzt verifiziert

1. Mai 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

De-identified individual participant data including demographic characteristics, ultrasound findings, neuroma pain intensity scores, neuropathic pain assessments, phantom limb pain measures, residual limb pain outcomes, prosthesis tolerance assessments, adverse events, and follow-up clinical evaluations collected during the study will be available for sharing. The study protocol and statistical analysis plan may also be shared upon reasonable request.

IPD-Sharing-Zeitrahmen

Beginning 6 months after publication of the primary study results and ending 5 years after publication.

Art der unterstützenden IPD-Freigabeinformationen

  • STUDIENPROTOKOLL
  • SAFT

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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