Cryoneurolysis for Cutaneous Neuropathic Pain

NCT ID: NCT04911569

Last Updated: 2021-06-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

25 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-06-07

Study Completion Date

2023-01-01

Brief Summary

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Feasibility study with 25 patients investigating the effect of cryoneurolysis on persistent cutaneous neuropathic pain after surgery and trauma. All patients receive active treatment (cryoneurolysis). The study design is unblinded, non-randomized, non-controlled.

Detailed Description

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Conditions

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Neuropathic Pain

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Non-blinded, non-randomized, non-controlled
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cryoneurolysis

All 25 patients will receive cryoneurolysis

Group Type EXPERIMENTAL

Cryoneurolysis

Intervention Type DEVICE

Cryoneurolysis

Interventions

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Cryoneurolysis

Cryoneurolysis

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age \> 17 years
* ASA (American Society of Anesthesiologists) physical status classification system I-III
* Informed consent
* Capable of subjective evaluation of pain
* Capable of reading and understanding Danish and informed written consent
* Average pain intensity \>49/100 on VAS in the primary focal pain area for a minimum of 6 months at the time of inclusion
* Relevant injury (surgery or trauma) of peripheral nerves
* Plausible cutaneous location of pain
* In the area of pain, at least one of the following (1-8): (1) Hypo/anesthesia for touch/brush (2) Hypo/anesthesia for cold (3) Hypo/anesthesia for warmth (4) Hypo/anesthesia for pinprick (5) Allodynia for touch/brush (6) Allodynia for cold (7) Allodynia for warmth (8) Hyperalgesia for pinprick
* Neuropathic pain score (Douleur Neuropathique en 4 Questions, DN-4) \>3/10
* Definitive diagnosis of neuropathic pain (Finnerup et al 2016)

Exclusion Criteria

* Inability to cooperate
* Inability to understand Danish
* Allergy to local anesthetic
* Infection in the area of cryo probe insertion
* Significant competitive chronic pain
* Progressive neurologic disease
* Increased risk at needle insertion and cold exposure (e.g. Raynaud, coagulopathies)
* Uncontrolled severe systemic disease
* Implanted electronic devices unless approved by the relevant medical specialist
* Previous cryoneurolysis with no relevant effect for the same neuropathic pain
* Previous interventional pain therapy (e.g. spinal cord stimulation) with no relevant effect for the same neuropathic pain
* Expected duration of life \< 2 years
* Pregnancy
* Abuse of alcohol, narcotics or medicine
* Current psychiatric disease
* Inclusion in other clinical trials
* Ongoing patient complaint
* Body mass index \< 18.5 or \> 34.9 kg/m2
* Change of pain therapy within the last 28 days prior to inclusion
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Aarhus University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Thomas F Bendtsen, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Aarhus University Hospital

Locations

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Aarhus University Hospital

Aarhus, Central Jutland, Denmark

Site Status RECRUITING

Countries

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Denmark

Central Contacts

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Thomas F Bendtsen, MD, PhD

Role: CONTACT

+4576484809

Facility Contacts

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Thomas F Bendtsen, MD, PhD

Role: primary

+4576484809

Other Identifiers

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Cryo_210510_V02

Identifier Type: -

Identifier Source: org_study_id

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