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Tissue Engineered Nasal Cartilage for Regeneration of Articular Cartilage (Nose2Knee)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01605201
Recruitment Status : Completed
First Posted : May 24, 2012
Last Update Posted : August 27, 2018
Deutsche Arthrose-Hilfe
Information provided by (Responsible Party):
University Hospital, Basel, Switzerland

Brief Summary:
The purpose of this study is to investigate the safety and feasibility of implanting an engineered cartilage graft obtained by culturing expanded autologous nasal chondrocytes within a collagen type I/III membrane into the cartilage defect on the femoral condyle and/or trochlea of the knee after a traumatic injury.

Condition or disease Intervention/treatment Phase
Cartilage Lesion Degenerative Lesion of Articular Cartilage of Knee Biological: Tissue engineered cartilage graft Phase 1

Detailed Description:

Articular cartilage injuries are a prime target for regenerative techniques, since spontaneous healing is poor and untreated defects predispose to osteoarthritis. Common current strategies such as arthroscopic debridement, microfracture, autologous osteochondral grafting, use of allografts and autologous chondrocytes implantation (ACI) still have drawbacks such as long and complex rehabilitation times, technically challenging operation techniques, defect-size limitations, donor-site morbidity, limited graft material and high costs. Furthermore many techniques show unsatisfactory long term results due to inferior quality of repair tissue as compared to native cartilage or have yet to prove the cost versus benefit. These drawbacks could be overcome by using a tissue engineered nasal cartilage graft, thereby reducing donor site morbidity without introducing additional risk of complication or technically challenging techniques.

This study is a phase I, prospective, uncontrolled, investigator initiated clinical trial involving 25 patients, with the objective of demonstrating safety and feasibility in the use of engineered nasal cartilage grafts for repair of articular cartilage. The specific surgical target of the trial is the repair of one or two full-thickness cartilage defects from 2 cm2 to 8 cm2 (per lesion, not exceeding a total of 8 cm2 for all lesions) due to traumatic injury on the femoral condyle and/or trochlea of the knee.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 18 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Tissue Engineered Nasal Cartilage for Regeneration of Articular Cartilage in the Knee After Traumatic Injury - a Phase I Clinical Trial-
Actual Study Start Date : August 29, 2012
Actual Primary Completion Date : August 15, 2018
Actual Study Completion Date : August 15, 2018

Arm Intervention/treatment
Experimental: Implantation of cartilage graft Biological: Tissue engineered cartilage graft
Autologous nasal chondrocytes expanded in vitro and cultured in a collagen type I//III scaffold

Primary Outcome Measures :
  1. 1-Safety for the patient [ Time Frame: until 24 months ]
    Safety will be assessed by the incidence of adverse reactions and adverse events. Expected postoperative complications also occurring in the standard procedure are: pain, swelling and hematoma, casually post-anesthetic nausea, vomiting or fever.

  2. 2- Stability of the graft [ Time Frame: until 24 months ]
    It will be assessed by Magnetic Resonance Imaging (MRI) technique at 6, 12 and 24 months indicating if the graft is in place and if there are signs of complications. Parameters to be evaluated are: filling of the defect, integration of the border zone to the adjacent cartilage, intactness of the subchondral lamina, intactness of the subchondral bone, and relative signal intensities of the repair tissue compared to the adjacent native cartilage.

Secondary Outcome Measures :
  1. Subjective pain relief [ Time Frame: until 24 months ]
    Subjective relief of pain for the patient will be assessed using the International Cartilage Repair Society (ICRS) Cartilage Injury Evaluation Package which includes the pre- and postsurgical evaluation of general medical conditions, pain, activity level as well as functional and morphological status.

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Size of the defect on the femoral cartilage:one or two symptomatic lesion(s) grade III-IV from 2 cm2 to 8 cm2 at the femoral condyle and/or trochlea
  • Other:
  • Age: 18-55 years
  • Written informed consent by the patient

Exclusion Criteria:

  • Defect:

    • Lesions smaller than 2cm2 or greater than 8cm2
    • Total area of all lesions bigger than 8cm2
    • Lesions other than on the femoral condyle and/or trochlea
    • Any evidence of the following diseases in the target joint: septic arthritis; inflammatory joint disease; gout; recurrent episodes of pseudogout; Paget disease of bone; ochronosis; acromegaly; hemochromatosis;Wilson disease; primary osteochondromatosis; heritable disorders; collagen gene mutations
    • Presence of a clinically relevant cartilage lesion on the patella (second lesion)
    • Patellofemoral cartilage lesion
    • Presence of relevant complex knee injuries affecting bone and/or ligaments
    • Osteochondritis dissecans: recent (within 1 year before baseline); depth of lesion >0.5 cm; subchondral sclerosis
    • Advanced osteoarthritis (as defined by Radiographic Atlas of Osteoarthritis, grade 2-3)
    • Varus or valgus malalignment exceeding 5° (kissing lesions out)
  • Medical history:

    • gravidity (Pregnancy)
    • breast feeding
    • presence of multiple severe allergies (including porcine collagen, streptomycin and penicillin)
    • Osteoarthritis
    • Current diagnosis of osteomyelitis
    • Any clinically significant or symptomatic vascular or neurologic disorder of the lower extremities
    • A blood result showing liver enzymes (serum glutamic oxaloacetic transaminase, serum glutamic pyruvic transaminase, alkaline phosphatase) of more than 2 times the upper limit of normal or any other result that in the clinical investigator's mind is clinically important
    • C-reactive protein level greater than 10 mg/L
    • Uncontrolled diabetes
    • Renal insufficiency
    • Previous pacemaker implantation
    • Any concomitant painful or disabling disease of the spine, hips, or lower limbs that would interfere with evaluation of the afflicted knee
    • Mosaicplasty (osteochondral autograft transfer system)
    • Microfracture performed less than 1 year before baseline
    • Received hyaluronic acid intra-articular injections into the afflicted knee within the last 6 months of baseline Meniscal transplant (previous/present)
    • Meniscal suture with meniscal arrows ipsilaterally (present or previous if not resorbed)
    • Taking specific osteoarthritis drugs, such as chondroitin sulfate, diacerein, n-glucosamine, piascledine, and capsaicin, within 2 weeks of the baseline visit
    • Corticosteroid therapy by systemic or intra-articular route within the last month of baseline or intramuscular or oral corticosteroids within the last 2 weeks of baseline
    • Chronic use of anticoagulants
    • Patients with human immunodeficiency virus, hepatitis, or syphilis
    • Malignancy
    • Alcohol and drug (medication) abuse
    • Poor general health condition as judged by investigator
    • Body mass index >35 kg/m2
    • Medication:chronic treatment with steroids or growth factors (immunomodulatory drugs)
  • Other:

    • Participation in concurrent clinical trials
    • Participation in a previous clinical trial within 1 year

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01605201

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University Hospital Basel
Basel, Switzerland, 4031
Sponsors and Collaborators
University Hospital, Basel, Switzerland
Deutsche Arthrose-Hilfe
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Principal Investigator: Marcel Jakob, Prof. Dr. University Hospital, Basel, Switzerland
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: University Hospital, Basel, Switzerland
ClinicalTrials.gov Identifier: NCT01605201    
Other Study ID Numbers: 92/11
TpP-I-2012-001 ( Other Identifier: Swissmedic )
First Posted: May 24, 2012    Key Record Dates
Last Update Posted: August 27, 2018
Last Verified: August 2018
Keywords provided by University Hospital, Basel, Switzerland:
Chondral lesions in the knee after traumatic injury