NCT03774121

Brief Summary

Pain is the principal symptom in knee osteoarthritis (OA) and results in a considerable amount of years lived with disability, emotional distress and has significant socioeconomic consequences. Conservative treatment options, such as exercise, often fail to provide long-term pain relief and alternatively patients may be subjected to total knee arthroplasty. More than 20% of these patients experience persistent and unchanged pain post-surgery. Novel advances in the field of cryoneurolysis applies low temperatures to disrupt nerve signaling at the painful area and a recent study showed that it was possible to target the peripheral nerves in the knee and provide significant pain relief in patients with knee OA. This could potentially improve the efficacy of other therapies such as exercise, delaying or perhaps avoiding surgical intervention and improving quality of life in OA patients considerably. Further prospective randomized controlled studies are needed to confirm the effects of cryoneurolysis treatment in patients with knee OA. The primary objective of the current project is to determine the effectiveness of cryoneurolysis in its ability to decrease pain in patients with knee OA. The secondary objective is to evaluate the safety and effectiveness of cryoneurolysis in its ability to improve outcomes in the GLA:D program to potentially delay or avoid surgical intervention. 90 individuals with knee OA in the knee will be randomly allocated in either a cryoneurolysis intervention group or a sham group. Both groups will be assessed at baseline, 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up. The patients, therapists and data-manager will be blinded to the allocation. The primary outcome will be VAS knee pain intensity score, measured post cryoneurolysis treatment. Secondary outcome measures include functional performance, PRO-data (KOOS, EQ5D), analgesic use, a socio-economic evaluation and adverse effects.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
87

participants targeted

Target at P50-P75 for not_applicable chronic-pain

Timeline
Completed

Started Jun 2019

Longer than P75 for not_applicable chronic-pain

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 3, 2018

Completed
9 days until next milestone

First Posted

Study publicly available on registry

December 12, 2018

Completed
7 months until next milestone

Study Start

First participant enrolled

June 26, 2019

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
Last Updated

October 15, 2024

Status Verified

October 1, 2024

Enrollment Period

3.7 years

First QC Date

December 3, 2018

Last Update Submit

October 11, 2024

Conditions

Keywords

CryoneurolysisExercisePainPhysical capacity

Outcome Measures

Primary Outcomes (1)

  • Change in NRS knee pain intensity score

    NRS consists of a numerical, from 0 to 10, anchored by two verbal descriptors, "no pain" for the score of zero and "worst pain imaginable" for the score of 10. NRS is a self-reported tool where the respondent is asked their current pain intensity.

    Change in NRS pain score, between baseline and two weeks post surgery

Secondary Outcomes (15)

  • Change in Pain location

    Change between baseline, 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up.

  • Change in Functional Performance Evaluated by the 30 second chair-stand test.

    Change between baseline, 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up.

  • Change in use of Analgesics

    Change between baseline, 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up.

  • Number of Adverse effects

    Reported adverse effects 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up.

  • Change in Pain type

    Change between baseline, 2 weeks post cryoneurolysis, post GLA;D and at 6, 12 and 24 month follow-up.

  • +10 more secondary outcomes

Study Arms (2)

CRYO

EXPERIMENTAL

Subjected to Cryoneurolysis treatment and Neuromuscular training (GLA:D).

Device: CryoneurolysisOther: Neuromuscular exercise (GLA:D)

SHAM

SHAM COMPARATOR

Subjected to similar procedures as CRYO, but without freezing temperatures. Subjected to Neuromuscular training (GLA:D).

Other: Neuromuscular exercise (GLA:D)Device: Sham

Interventions

A cryoprobe will be inserted percutaneously and freeze the target nerves (infrapatellar branch of the saphenous nerve \& anterior femoral cutaneous nerve) guided by ultrasound visualization.

Also known as: Cryoablation
CRYO

The GLA:D program, is a standard education and exercise program for patients with osteoarthritis in Denmark. The program is performed in groups and with the supervision of an experienced physiotherapist specialized in training of musculoskeletal disorders.

CRYOSHAM
ShamDEVICE

The sham intervention includes a similar procedure but without freezing temperatures.

SHAM

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Referred to GLA:D by a physician.
  • Age ≥ 18y
  • Chronic knee pain for a minimum duration of 6 months.
  • Pain intensity ≥ 40mm on a 100mm visual analogue scale (VAS).
  • Radiographic confirmation of osteoarthritis; Grade 2-4 changes according to the Kellgren Lawrence classification system
  • A decrease of ≥ 50 % in VAS scores with diagnostic genicular nerve block.
  • Written and oral understanding of Danish.

You may not qualify if:

  • History of systemic inflammatory conditions such as rheumatoid arthritis.
  • Previous recipient of cryoneurolysis for the knee.
  • Use of hyaluronic acid within the previous 30 days.
  • Injection of corticosteroid within the previous 3 months.
  • Clinical significant structural abnormities affecting locomotion and knee function aside from osteoarthritis and which might cause chronic knee pain.
  • Body mass index ≥ 18 and ≤ 40 kg/m
  • In treatment for other pain conditions.
  • Pregnancy
  • Coagulopathy
  • Uncontrolled serious disease (cancer, diabetes, etc.)
  • Disease associated with reactions to cold, such as cryoglobulinemia, cold urticarial and Renaud's syndrome.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital of Southwest Jutland

Esbjerg, Region Syddanmark, 6700, Denmark

Location

Related Publications (10)

  • SUNDERLAND S. A classification of peripheral nerve injuries producing loss of function. Brain. 1951 Dec;74(4):491-516. doi: 10.1093/brain/74.4.491. No abstract available.

    PMID: 14895767BACKGROUND
  • Ilfeld BM, Preciado J, Trescot AM. Novel cryoneurolysis device for the treatment of sensory and motor peripheral nerves. Expert Rev Med Devices. 2016 Aug;13(8):713-25. doi: 10.1080/17434440.2016.1204229. Epub 2016 Jul 13.

    PMID: 27333989BACKGROUND
  • Radnovich R, Scott D, Patel AT, Olson R, Dasa V, Segal N, Lane NE, Shrock K, Naranjo J, Darr K, Surowitz R, Choo J, Valadie A, Harrell R, Wei N, Metyas S. Cryoneurolysis to treat the pain and symptoms of knee osteoarthritis: a multicenter, randomized, double-blind, sham-controlled trial. Osteoarthritis Cartilage. 2017 Aug;25(8):1247-1256. doi: 10.1016/j.joca.2017.03.006. Epub 2017 Mar 20.

    PMID: 28336454BACKGROUND
  • Trescot AM. Cryoanalgesia in interventional pain management. Pain Physician. 2003 Jul;6(3):345-60.

    PMID: 16880882BACKGROUND
  • Skou ST, Roos EM. Good Life with osteoArthritis in Denmark (GLA:D): evidence-based education and supervised neuromuscular exercise delivered by certified physiotherapists nationwide. BMC Musculoskelet Disord. 2017 Feb 7;18(1):72. doi: 10.1186/s12891-017-1439-y.

    PMID: 28173795BACKGROUND
  • Dasa V, Lensing G, Parsons M, Harris J, Volaufova J, Bliss R. Percutaneous freezing of sensory nerves prior to total knee arthroplasty. Knee. 2016 Jun;23(3):523-8. doi: 10.1016/j.knee.2016.01.011. Epub 2016 Feb 10.

    PMID: 26875052BACKGROUND
  • Lewis GN, Rice DA, McNair PJ, Kluger M. Predictors of persistent pain after total knee arthroplasty: a systematic review and meta-analysis. Br J Anaesth. 2015 Apr;114(4):551-61. doi: 10.1093/bja/aeu441. Epub 2014 Dec 26.

    PMID: 25542191BACKGROUND
  • O'Brien T, Breivik H. The impact of chronic pain-European patients' perspective over 12 months. Scand J Pain. 2012 Jan 1;3(1):23-29. doi: 10.1016/j.sjpain.2011.11.004.

    PMID: 29913762BACKGROUND
  • Ageberg E, Link A, Roos EM. Feasibility of neuromuscular training in patients with severe hip or knee OA: the individualized goal-based NEMEX-TJR training program. BMC Musculoskelet Disord. 2010 Jun 17;11:126. doi: 10.1186/1471-2474-11-126.

    PMID: 20565735BACKGROUND
  • Nygaard NB, Koch-Jensen C, Vaegter HB, Wedderkopp N, Blichfeldt-Eckhardt M, Gram B. Cryoneurolysis for the management of chronic pain in patients with knee osteoarthritis; a double-blinded randomized controlled sham trial. BMC Musculoskelet Disord. 2021 Feb 26;22(1):228. doi: 10.1186/s12891-021-04102-1.

MeSH Terms

Conditions

Chronic PainOsteoarthritis, KneeMotor ActivityPain

Interventions

Cryosurgery

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsOsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesBehavior

Intervention Hierarchy (Ancestors)

Ablation TechniquesSurgical Procedures, Operative

Study Officials

  • Bibi (Valgerdur) Gram, PhD

    Esbjerg Hospital - University Hospital of Southern Denmark

    STUDY DIRECTOR
  • Carsten Kock-Jensen, MD

    Esbjerg Hospital - University Hospital of Southern Denmark

    STUDY DIRECTOR
  • Niels-Peter B Nielsen, PhD

    Esbjerg Hospital - University Hospital of Southern Denmark

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post doc, Research employee

Study Record Dates

First Submitted

December 3, 2018

First Posted

December 12, 2018

Study Start

June 26, 2019

Primary Completion

March 1, 2023

Study Completion

March 1, 2023

Last Updated

October 15, 2024

Record last verified: 2024-10

Locations