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Long-term Safety and Efficacy of CartiFill After Microfracture Surgery in Knee Cartilage Defects

Observational Study to Evaluate the Long-term Safety and Efficacy of CartiFill in Subjects With Cartilage Defect of the Knee Joints Who Have Undergone Microfracture Surgery or Microfracture Surgery Using Collagen

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07621172
Enrollment
36
Registered
2026-06-02
Start date
2020-02-03
Completion date
2021-04-27
Last updated
2026-06-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cartilage Defects of the Knee

Keywords

Cartilage Defects of the knee joint, microfracture, modified microfracture using collagen, collagen

Brief summary

The purpose of this clinical trial is to evaluate the safety and efficacy of CartiFill implanted at the site of knee joint cartilage defect in a 6-year, long-term, follow-up investigation.

Interventions

DEVICECartiFill

add collagen when doing microfracture

PROCEDUREMicrofracture

simple microfracture of ankle

Sponsors

Cellontech Co., Ltd.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
19 Years to 70 Years

Inclusion criteria

1. Patients who have undergone microfracture surgery or microfracture surgery using collagen 6 years (±1 year) ago as part of the previously conducted post-marketing clinical trial (Protocol No. 03CAR). 2. Males or females aged 19 to 70 years. 3. Patients or patients whose legal representatives have agreed to participate in the clinical trial and signed the written consent.

Exclusion criteria

1. Patients who have undergone microfracture surgery or microfracture surgery using collagen as part of previously conducted post-marketing clinical trial (Protocol No. 03CAR) but have since then received cartilage surgery, such as high tibial osteotomy (HTO), partial/full implant arthroplasty, etc., at the same site. (Does not include biopsy for diagnosis, a simple arthroscopic examination, or HTO plate removal procedure, etc.) ※ Does not include non-invasive treatment or medication such as exercise therapy, physical therapy, manual therapy, extracorporeal shock wave, joint cavity injection, etc. 2. Patients who are deemed by the clinical trial manager to be unfit to participate due to psychiatric conditions, etc.

Design outcomes

Primary

MeasureTime frameDescription
100mm VAS (visual analogue scale) scoreFrom screening to 6 years (±1 year) after surgery100 mm VAS values of the experimental and control groups 6 years (±1 year) after the surgery were analyzed using unpaired T-test or Wilcoxon rank-sum test. The difference between the values from the previously conducted post-marketing clinical trial (Protocol No. 03CAR) and values 6 years (±1 year) after the procedure was also analyzed using unpaired T-test.

Secondary

MeasureTime frameDescription
KOOS (Knee injury and Osteoarthritis Outcome Score)From screening to 6 years (±1 year) after surgery
IKDC (International Knee Documentation Committee)From screening to 6 years (±1 year) after surgery
EQ-5D (EuroQol 5 Dimension Scale)From screening to 6 years (±1 year) after surgery
WPAI (Work Productivity and Activity Impairment Questionnaire)From screening to 6 years (±1 year) after surgery
Post-surgical Satisfaction (Subject)6 years (±1 year) after surgerySatisfaction survey based on a questionnaire
Post-surgical Satisfaction (Investigator)6 years (±1 year) after surgerySatisfaction survey based on a questionnaire
mMOCART (modified Magnetic resonance Observation of Cartilage Repair Tissue)6 years (±1 year) after the surgery
MRI cartilage imaging6 years (±1 year) after surgery

Countries

South Korea

Contacts

PRINCIPAL_INVESTIGATORYong In, MD

The Catholic University of Korea

PRINCIPAL_INVESTIGATORJongSeok Baek, MD

Wonkwang University Hospital

PRINCIPAL_INVESTIGATORSeungBaek Kang

SMG-SNU Boramae Medical Center

PRINCIPAL_INVESTIGATORJunHo Hwang

Samsung Seoul Hospital

PRINCIPAL_INVESTIGATORJaYoung Choi, MD

Seoul National University Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 3, 2026