NCT05917028

Brief Summary

Among knee degenerative osteoarthritis patients aged 50 or older, it will prove the therapeutic effect and safety of Nexsphere-F embolization for patients who need additional treatment because pain is not controlled even if conventional treatments are taken.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 12, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 23, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

October 23, 2023

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

April 2, 2025

Status Verified

March 1, 2025

Enrollment Period

2.1 years

First QC Date

June 12, 2023

Last Update Submit

March 27, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Rate of WOMAC Score Reduction

    The rate of change of WOMAC Score before and after application of medical devices for clinical trials. The definition of clinical success is a reduction of more than 50% of baseline scores (WOMAC and VAS) in six-month observations after at least one knee vascular embolization without additional combination treatment.

    1 day, 14 days, 1 month, 3 months, 6 months

  • Rate of VAS Score (patient pain intensity) Reduction

    The rate of change of VAS Score before and after application of medical devices for clinical trials. The definition of clinical success is a reduction of more than 50% of baseline scores (WOMAC and VAS) in six-month observations after at least one knee vascular embolization without additional combination treatment.

    1 day, 14 days, 1 month, 3 months, 6 months

Secondary Outcomes (3)

  • Rate of change in WORMS (Whole-Organ Magnetic Resonance Imaging Score)

    1 month

  • The rate of reduction of medication

    6 months

  • The rate of discontinuation of combination treatment

    6 months

Other Outcomes (1)

  • Number of participants with abnormal cases during follow-up (AVN, skin necrosis, dermal toxicity, acute lower extremity ischemia)

    1 day, 14 days, 1 month, 3 months, 6 months

Study Arms (1)

Transcatheter Arterial Micro-Embolization

EXPERIMENTAL

If abnormal blood vessels related to pain are identified by angiography, selective embolization is performed using Nexsphere-F.

Device: Transcatheter Arterial Micro-Embolization

Interventions

Participants will undergo TAME with Nexsphere-F.

Transcatheter Arterial Micro-Embolization

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Those who fall under Kellgren-Lawrence grade 2 to 3 according to the criteria in accordance with ACR guidelines and X-ray findings used within 12 months
  • VAS score exceeding 50mm
  • An adult male and female over 50 years of age
  • Preservative therapy Glucosamine chondroitin sulfate/physiological therapy and rehabilitation exercises, and joint injections of hyaluronic acid for more than 12 weeks
  • A person who agrees to maintain existing medication treatments during the clinical trial period but does not receive additional medication or new conservative treatments for knee osteoarthritis pain management.

You may not qualify if:

  • A locally infected patient
  • A person whose life expectancy is less than six months
  • A person with symptoms of lower extremities that are considered secondary to atherosclerosis or arterial vascular disease (ex: claudication ischemic rest pain)
  • A person diagnosed with rheumatism or infectious arthritis
  • A person who has undergone knee arthroplasty
  • A person who has not had knee microfracture surgery for more than 10 years
  • INR 2.5 or less than 30,000 platelets
  • Anaphylaxis-causing iodine allergy
  • Patients with renal dysfunction or impaired renal function who have been diagnosed with less than 45 GFR (eGFR) within the last 60 days
  • Those who have a taboo on MR videos
  • Pregnant women
  • Other cases where it is deemed inappropriate to participate in this clinical trial at the discretion of the researcher

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Severance Hospital

Seoul, Seodaemun-gu, 03722, South Korea

RECRUITING

MeSH Terms

Conditions

Osteoarthritis

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Hyuckmin Kwon

    Severance Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 12, 2023

First Posted

June 23, 2023

Study Start

October 23, 2023

Primary Completion

December 1, 2025

Study Completion

December 1, 2025

Last Updated

April 2, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations