NCT03567187

Brief Summary

This will be an open-label trial to describe the effects of cryoneurolysis with iovera° on symptom relief in patients with painful Kellgren-Lawrence (KL) grade 2-4 ankle osteoarthritis (OA). The Foot and Ankle Outcome Score (FAOS) subscales will be used to assess outcomes at 6, 12 and 24 weeks after treatment.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2018

Typical duration for not_applicable

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

June 12, 2018

Completed
13 days until next milestone

First Posted

Study publicly available on registry

June 25, 2018

Completed
8 days until next milestone

Study Start

First participant enrolled

July 3, 2018

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 28, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 28, 2021

Completed
3.3 years until next milestone

Results Posted

Study results publicly available

May 16, 2024

Completed
Last Updated

May 16, 2024

Status Verified

May 1, 2024

Enrollment Period

2.6 years

First QC Date

June 12, 2018

Results QC Date

February 23, 2022

Last Update Submit

May 15, 2024

Conditions

Keywords

CryoneurolysisioveraSuperficial nerves treatmentDeep Fibular Nerve

Outcome Measures

Primary Outcomes (1)

  • FAOS - PAIN

    FAOS-Pain is a subscale of the Foot and ankle outcome score (FAOS) which is a self-reported outcome score.The sub scale ranges from 0 to 100 where higher values represents a better outcome.

    Change between baseline/screening and 12-weeks following treatment

Secondary Outcomes (11)

  • NRS Pain Over Prior 7 Days

    change between baseline/screening and 6-weeks following treatment

  • FAOS - ADL(Activity of Daily Living)

    change between baseline/screening and 12-weeks following treatment

  • FAOS - ADL(Activity of Daily Living)

    change between baseline/screening and 6-weeks following treatment

  • FAOS - ADL(Activity of Daily Living)

    change between baseline/screening and 24-weeks following treatment

  • FAOS-QoL(Quality of Life)

    change between baseline/screening and 12-weeks following treatment

  • +6 more secondary outcomes

Other Outcomes (3)

  • Change in 40m Fast Paced Walking Test (40m FPWT) Time Between Baseline/Screening and 6-weeks Following Treatment

    change between baseline/screening and 6-weeks following treatment

  • Change in 40m Fast Paced Walking Test (40m FPWT) Time Between Baseline/Screening and 12-weeks Following Treatment

    change between baseline/screening and 12-weeks following treatment

  • Change in 40m Fast Paced Walking Test (40m FPWT) Time Between Baseline/Screening and 24-weeks Following Treatment

    change between baseline/screening and 24-weeks following treatment

Study Arms (1)

Iovera

EXPERIMENTAL

The iovera° device consists of a reusable, portable hand-piece, along with a single-patient use sterile smart Tip (cryoprobe) and disposable nitrous oxide (N2O) cartridges (cryogen). The smart tip is composed of closed-tip stainless steel needles, thereby fully enclosing the cryogen. There are 2 types of smart tips that will be utilized during this study, depending on the depth of the nerves being treated. The shorter smart tip comes in 2 variants - three X 6.9 mm or 8.9 mm, 27-gauge needles, with an attached skin warmer to prevent damage to the underlying skin. The longer smart tip also comes in 2 variants - 55 mm 22-gauge needle or a 90 mm 20G needle. The effect is by initiation of a cooling cycle, by fully inserting the smart tip into the procedure site and activating the cryogen flow. As the gas travels through the length of the needle, an ice ball develops around the needle freezing the surrounding tissue.

Device: iovera

Interventions

ioveraDEVICE

The iovera° device is 510(k)-cleared (K133453 and K161835) and is used to form a precisely controlled, sub-dermal cold zone of -20 to -88.5 degrees Celsius to temporarily disrupt peripheral nerve function, ultimately blocking pain. It is not indicated for the treatment of central nervous system tissue.

Iovera

Eligibility Criteria

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

You may qualify if:

  • Participation in an institutional review board-approved informed consent process, culminating in providing written consent.
  • Willingness and ability to comply with the study procedures, visit schedules and ability to follow verbal and written instructions.
  • Male or female over 18 years of age.
  • Currently Kellgren-Lawrence (KL) Grade 2, 3 or 4 in the ankle based on X-ray (weight-bearing mortise views with 20° internal rotation) or weight-bearing CT scan of the ankles.
  • Limited by unilateral ankle pain, rated on a Numerical Rating Scale for pain severity as ≥5 on most days over the last month.
  • Foot and ankle outcome score (FAOS) of \< 75 in at least 1 category.
  • Body mass index (BMI) ≤ 50 kg/m2
  • Ambulatory
  • Willingness to abstain from the use of protocol-restricted medications during the study and also willing to abstain from use of analgesics other than acetaminophen 1 week prior to beginning of the study.
  • Has undergone at least one prior conservative osteoarthritis treatment (e.g. physical therapy, analgesics).

You may not qualify if:

  • Baseline knee, hip, spine or other limitations that affect walking ability to a greater extent than the ankle.
  • Cryoglobulinemia, paroxysmal cold hemoglobinuria, Raynaud's disease, cold urticaria.
  • Clinical signs or symptoms of active or recurrent infection in the index ankle joint or overlying skin.
  • Intra-articular, intravenous or intramuscular corticosteroid (investigational or marketed) within 3 months of screening
  • Oral corticosteroids (investigational or marketed) within 2 weeks of screening (unless on a chronic stable dose for ≥3 months prior to enrollment).
  • Women who are pregnant (due to potential for the change in body mass and distribution to alter ankle symptoms over the period of follow-up).
  • Any condition other than OA of the ankle joint which, in the opinion of the investigators, affects their ability to ambulate to a sufficient degree to interfere with the assessment of the safety and treatment effects of the study injection.
  • Arthroscopy or open surgery of the ankle joint within 6 months of screening.
  • Planned/anticipated surgery of the index ankle joint during the 6-month study period.
  • Any clinically significant degree of cognitive impairment or other condition, finding, or psychiatric illness at screening which, in the opinion of the investigator, could compromise patient safety or interfere with the assessment of the safety and treatment effects of the study injection.
  • Skin breakdown at the ankle joint where the injection is planned to take place.
  • Participated in any investigational drug or device trial within 30 days prior to screening or concurrent participation in another research study that could complicate interpretation of the findings of either study.
  • Current consumption of more than 14 alcoholic drinks per week.
  • Patients with diffuse pain conditions (Complex pain - diffuse or confounding pain, fibromyalgia, etc.).
  • Known altered nerve anatomy or physiology (e.g. neuropathy) at the target, such as due to a congenital, traumatic or surgical cause.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Kansas Medical Center

Kansas City, Kansas, 66160, United States

Location

Related Publications (13)

  • Ward ST, Williams PL, Purkayastha S. Intra-articular corticosteroid injections in the foot and ankle: a prospective 1-year follow-up investigation. J Foot Ankle Surg. 2008 Mar-Apr;47(2):138-44. doi: 10.1053/j.jfas.2007.12.007.

    PMID: 18312921BACKGROUND
  • Valderrabano V, Horisberger M, Russell I, Dougall H, Hintermann B. Etiology of ankle osteoarthritis. Clin Orthop Relat Res. 2009 Jul;467(7):1800-6. doi: 10.1007/s11999-008-0543-6. Epub 2008 Oct 2.

    PMID: 18830791BACKGROUND
  • Repetto I, Biti B, Cerruti P, Trentini R, Felli L. Conservative Treatment of Ankle Osteoarthritis: Can Platelet-Rich Plasma Effectively Postpone Surgery? J Foot Ankle Surg. 2017 Mar-Apr;56(2):362-365. doi: 10.1053/j.jfas.2016.11.015.

    PMID: 28231968BACKGROUND
  • Trescot AM. Cryoanalgesia in interventional pain management. Pain Physician. 2003 Jul;6(3):345-60.

    PMID: 16880882BACKGROUND
  • Evans PJ, Lloyd JW, Green CJ. Cryoanalgesia: the response to alterations in freeze cycle and temperature. Br J Anaesth. 1981 Nov;53(11):1121-7. doi: 10.1093/bja/53.11.1121.

    PMID: 7326160BACKGROUND
  • Golightly YM, Devellis RF, Nelson AE, Hannan MT, Lohmander LS, Renner JB, Jordan JM. Psychometric properties of the foot and ankle outcome score in a community-based study of adults with and without osteoarthritis. Arthritis Care Res (Hoboken). 2014 Mar;66(3):395-403. doi: 10.1002/acr.22162.

    PMID: 24023029BACKGROUND
  • Mani SB, Do H, Vulcano E, Hogan MV, Lyman S, Deland JT, Ellis SJ. Evaluation of the foot and ankle outcome score in patients with osteoarthritis of the ankle. Bone Joint J. 2015 May;97-B(5):662-7. doi: 10.1302/0301-620X.97B5.33940.

    PMID: 25922461BACKGROUND
  • Holzer N, Salvo D, Marijnissen AC, Vincken KL, Ahmad AC, Serra E, Hoffmeyer P, Stern R, Lubbeke A, Assal M. Radiographic evaluation of posttraumatic osteoarthritis of the ankle: the Kellgren-Lawrence scale is reliable and correlates with clinical symptoms. Osteoarthritis Cartilage. 2015 Mar;23(3):363-9. doi: 10.1016/j.joca.2014.11.010. Epub 2014 Nov 15.

    PMID: 25463444BACKGROUND
  • Roos EM, Brandsson S, Karlsson J. Validation of the foot and ankle outcome score for ankle ligament reconstruction. Foot Ankle Int. 2001 Oct;22(10):788-94. doi: 10.1177/107110070102201004.

    PMID: 11642530BACKGROUND
  • Hunt KJ, Hurwit D. Use of patient-reported outcome measures in foot and ankle research. J Bone Joint Surg Am. 2013 Aug 21;95(16):e118(1-9). doi: 10.2106/JBJS.L.01476.

    PMID: 23965711BACKGROUND
  • Dobson F, Hinman RS, Roos EM, Abbott JH, Stratford P, Davis AM, Buchbinder R, Snyder-Mackler L, Henrotin Y, Thumboo J, Hansen P, Bennell KL. OARSI recommended performance-based tests to assess physical function in people diagnosed with hip or knee osteoarthritis. Osteoarthritis Cartilage. 2013 Aug;21(8):1042-52. doi: 10.1016/j.joca.2013.05.002. Epub 2013 May 13.

    PMID: 23680877BACKGROUND
  • McDaniel G, Renner JB, Sloane R, Kraus VB. Association of knee and ankle osteoarthritis with physical performance. Osteoarthritis Cartilage. 2011 Jun;19(6):634-8. doi: 10.1016/j.joca.2011.01.016. Epub 2011 Feb 19.

    PMID: 21310252BACKGROUND
  • 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.

Results Point of Contact

Title
Neil Segal, MD
Organization
University of Kansas Medical Center

Study Officials

  • Neil A Segal, MD

    University of Kansas Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 12, 2018

First Posted

June 25, 2018

Study Start

July 3, 2018

Primary Completion

January 28, 2021

Study Completion

January 28, 2021

Last Updated

May 16, 2024

Results First Posted

May 16, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations