- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07618689
Proximal Nerve Cryoablation Versus Perineuroma Cryoablation for Chronic Neuroma Pain After Combat-Related Amputation (AXON-FREEZE)
atients with combat-related amputations frequently develop chronic neuroma pain that interferes with rehabilitation, prosthesis use, mobility, sleep, and quality of life. Cryoablation is a minimally invasive treatment that produces controlled nerve injury using extreme cold. Although the freezing effect is localized around the cryoprobe, axonal interruption followed by distal Wallerian degeneration may extend functional denervation distal to the ablation site.
This study aims to compare two ultrasound-guided cryoablation strategies for chronic neuroma pain after combat-related amputation: cryoablation performed directly near the neuroma and cryoablation performed proximal to the neuroma along the affected nerve.
The study will evaluate whether proximal nerve cryoablation produces greater or longer-lasting analgesic effects compared with perineuroma cryoablation.
연구 개요
상세 설명
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. Current treatment strategies frequently provide incomplete or temporary analgesia.
Cryoablation is an ultrasound-guided minimally invasive technique that induces controlled axonal injury using extreme cold temperatures. Although the direct freezing zone extends only a few millimeters around the cryoprobe, cryo-induced axonotmesis may trigger distal Wallerian degeneration along the affected nerve pathway while preserving connective tissue structures that support potential nerve regeneration.
The optimal anatomical target for cryoablation in painful neuromas remains unclear. Cryoablation performed directly adjacent to the neuroma may interrupt local nociceptive signaling, whereas proximal nerve cryoablation may produce broader distal analgesic effects by interrupting axonal conduction proximal to the neuroma-bearing segment.
The AXON-FREEZE Trial is a prospective multicenter controlled study designed to compare proximal nerve cryoablation versus perineuroma cryoablation for chronic neuroma pain after combat-related amputation.
Participants with ultrasound-confirmed painful neuromas will undergo ultrasound-guided cryoablation using one of the two treatment strategies according to study allocation and local clinical practice. 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 cryoablation targeting strategies and evaluate whether proximal nerve cryoablation may provide stronger or longer-lasting pain relief compared with cryoablation performed adjacent to the neuroma.
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 연락처
- 이름: Dmytro Dmytriiev, PhD.Professor
- 전화번호: +380674309449
- 이메일: mddmytriiev@gmail.com
연구 장소
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Вінницька
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Vinnytsia, Вінницька, 우크라이나, 21000
- Vinnitsya university hospital
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연락하다:
- Dmytro Dmytriiev, Phd
- 전화번호: 0674309449
- 이메일: mddmytriiev@gmail.com
-
-
참여기준
자격 기준
공부할 수 있는 나이
- 성인
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Age ≥18 years
- Combat-related limb amputation
- Chronic neuroma pain lasting ≥3 months
- Ultrasound-confirmed painful neuroma
- Average pain intensity ≥4/10 on Numeric Rating Scale
- Positive Tinel sign
- Ability to undergo ultrasound-guided cryoablation
- Stable analgesic regimen for at least 14 days
- Ability to provide written informed consent
Exclusion Criteria:
- Active infection at the treatment site
- Open wound preventing safe procedure
- Previous cryoablation of the target nerve within 6 months
- Neuroma surgery within 3 months
- Severe coagulopathy or anticoagulation contraindicating procedure
- Pregnancy or breastfeeding
- Severe uncontrolled systemic disease
- Inability to complete follow-up assessments
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위화되지 않음
- 중재 모델: 병렬 할당
- 마스킹: 하나의
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Perineuroma Cryoablation
Ultrasound-guided cryoablation performed adjacent to the painful neuroma.
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Ultrasound-guided cryoablation performed adjacent to the painful neuroma.
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활성 비교기: Proximal Nerve Cryoablation
Ultrasound-guided cryoablation performed proximal to the neuroma along the affected nerve.
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Ultrasound-guided cryoablation performed proximal to the neuroma along the affected nerve.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Change in Chronic Neuroma Pain Intensity
기간: Baseline to 12 weeks
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Change in average neuroma pain intensity measured using the Numeric Rating Scale (NRS).
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Baseline to 12 weeks
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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DN4 neuropathic pain score
기간: : Baseline to 24 weeks
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Assessment of neuropathic pain characteristics using the Douleur Neuropathique 4 (DN4) questionnaire.
Higher scores indicate greater neuropathic pain involvement associated with chronic neuroma pain after combat-related amputation.
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: Baseline to 24 weeks
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- 10v213022026
- USRA (기타 식별자: Ukranian Society of Regional Anesthesia and Pain Therapy)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
IPD 공유 액세스 기준
IPD 공유 지원 정보 유형
- 연구_프로토콜
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
신경종에 대한 임상 시험
-
Centrexion Therapeutics완전한
Perineuroma Cryoablation에 대한 임상 시험
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Shanghai MicroPort EP MedTech Co., Ltd.아직 모집하지 않음
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Kaiser Permanente완전한
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afreeze GmbHRaffeiner GmbH모병
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Medtronic Cardiac Ablation Solutions완전한
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Medtronic Cardiac Rhythm and Heart FailureMedtronic International Trading Sarl완전한
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AtriCure, Inc.모병절단 | 절단, 외상/수술 | 하지 절단 | 절단, 사지 손실 | 상지 절단 | 냉동 진통증미국
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Universitair Ziekenhuis Brussel아직 모집하지 않음만성 근골격계 통증 | 동결절제술 | 냉동 진통증