Altius Peripheral Nerve Stimulation in Amputees After TMR/RPNI
A Single-Center, Prospective, Within-Subject Study of Altius® Direct Electrical Nerve Stimulation System in Lower Extremity Amputees With Persistent Pain After Targeted Muscle Reinnervation (TMR) and/or Regenerative Peripheral Nerve Interface (RPNI)
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Anne Genzelev
- Telefonnummer: 617-835-8018
- E-Mail: Anne.genzelev@nyulangone.org
Studieren Sie die Kontaktsicherung
- Name: Jacques Hacquebord, MD
- Telefonnummer: 646-413-9861
- E-Mail: Jacques.Hacquebord@nyulangone.org
Studienorte
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New York
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New York, New York, Vereinigte Staaten, 10016
- NYU Langone Health
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Adults (≥18 years old)
- Lower extremity amputees with prior TMR, RPNI at least 9 months prior to enrollment, or similar nerve-targeted surgery who have persistent neuropathic pain
- Persistent chronic/intractable neuropathic pain that is moderate to severe (VAS ≥4)
- 50% or greater pain reduction after receiving SOC ultrasound-guided lidocaine injection
- Able and willing to provide consent
Exclusion Criteria:
- Non-LE amputees
- LE amputees without moderate to significant pain
- LE amputees who have not undergone TMR, RPNI, or similar nerve targeted surgeries, amputees who have undergone these surgeries less than 9 months prior to enrollment, or amputees who have undergone these surgeries and do not have persistent pain
Patients with contraindications to implant surgery
- Presence of any active implantable device (e.g, pacemaker, implantable cardioverter-defibrillator, other neurostimulator or drug pump)
- Anticipated need for MRI or diathermy after implantation
- Uncontrolled diabetes, defined as HbA1c > 8.0 at screening due to increased risk of surgical complications and delayed wound healing
- Pregnant, breastfeeding, intending pregnancy during the study period, or unwilling to use effective contraception
- Suspected or known allergy to any component of the Altius system or to lidocaine used for the diagnostic lidocaine block.
- Severe scarring, skin grafting, or other anatomic constraints over the planned implant site that would prevent safe placement of the cuff electrode(s), lead(s), or IPG
- Spasticity of the residual limb preventing comfortable full range of motion, which may interfere with stability or comfort of the implanted leads.
- Other significant pain syndromes that, in the investigator's judgment, would likely confound assessment of phantom limb or residual limb neuropathic pain outcomes.
- Active substance abuse; severe psychiatric illness that may interfere with study participation (e.g., recent psychiatric hospitalization or other condition that impairs ability to comply with study procedures); or inability to comply with follow up visits or operation of the Altius Direct Electrical Nerve Stimulation System.
- Uncontrolled infection at the amputation site or bleeding disorders
- Unable to operate the Altius® Direct Electrical Nerve Stimulation System
- Unsuitable for the Altius implant surgery
- Unable to participate in follow-ups according to study schedule (1 month, 3 months, and 6 months post-op)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Unterstützende Pflege
- Zuteilung: N / A
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: Adult Lower Extremity (LE) Amputees
Adult LE amputees with chronic/intractable pain despite previous TMR and/or RPNI surgery.
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The Altius system will be surgically implanted into the patient on one occasion.
The Altius system is then used on an 'as needed' basis by patient.
Andere Namen:
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Change in Hours Per Day of Prosthesis Use
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Participants provide their average hours per day of prosthesis use over the past 7 days.
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Baseline, Month 1, Month 3, Month 6
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Change in Days Per Week of Prosthesis Use
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Participants provide their average number of days of prosthesis use over the past 7 days.
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Baseline, Month 1, Month 3, Month 6
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Change in Prosthesis Function Level
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Participants rate their current level of function with their prosthesis on a scale from 1 (extremely low) to 10 (extremely high).
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Baseline, Month 1, Month 3, Month 6
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Change in Prosthesis Satisfaction Level
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Participants rate their current level of satisfaction with their prosthesis on a scale from 1 (extremely dissatisfied) to 10 (extremely satisfied).
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Baseline, Month 1, Month 3, Month 6
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Change in Locomotor Capabilities Index (LCI-5) Score
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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14-item assessment of locomotor capabilities; each item is rated on a 5-point scale from 0 to 4; the total score is the sum of responses and ranges from 0-56; higher scores indicate greater locomotor capabilities.
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Baseline, Month 1, Month 3, Month 6
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Change in Patient Health Questionnaire-9 (PHQ-9) Score
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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9-item assessment of depressive symptoms; each item is rated on a scale from 0-3; the total score is the sum of responses and ranges from 0-27; higher scores indicate greater severity of depressive symptoms.
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Baseline, Month 1, Month 3, Month 6
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Change in Visual Analogue Score (VAS) - Residual Pain
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Residual pain will be rated on a VAS scale ranging from 0 (no pain) to 10 (worst possible pain).
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Baseline, Month 1, Month 3, Month 6
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Change in Visual Analogue Score (VAS) - Phantom Pain
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Phantom pain will be rated on a VAS scale ranging from 0 (no pain) to 10 (worst possible pain).
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Baseline, Month 1, Month 3, Month 6
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Change in PROMIS Pain Intensity Short Form 8a Score
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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The Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Intensity Short Form 8a is an 8-item assessment of pain interference in daily life.
Each item is rated on a scale from 1 (not at all) to 5 (very much).
The raw score is the sum of responses; the raw score is converted to a standardized score ranging from 0-100 with a mean of 50; higher scores indicate more pain interference.
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Baseline, Month 1, Month 3, Month 6
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Number of Participants Taking Opioids/Narcotics for Pain
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Baseline, Month 1, Month 3, Month 6
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Number of Participants Taking Medication for Nerve Pain
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Baseline, Month 1, Month 3, Month 6
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Number of Participants Taking Nonsteroidal Anti-inflammatory Drugs (NSAIDs) for Pain
Zeitfenster: Baseline, Month 1, Month 3, Month 6
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Baseline, Month 1, Month 3, Month 6
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Jacques Hacquebord, MD, NYU Langone Health
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 26-00331
Plan für individuelle Teilnehmerdaten (IPD)
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Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Produkt, das in den USA hergestellt und aus den USA exportiert wird
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