A Phase 1 interventional study of Tissue engineered cartilage graft in Cartilage Lesion and Degenerative Lesion of Articular Cartilage of Knee, sponsored by University Hospital, Basel, Switzerland. Completed at 1 site in Switzerland. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2018-08-27.
Sponsored by University Hospital, Basel, Switzerland · Phase 1, Interventional, and Treatment
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.
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.
University Hospital, Basel, Switzerland is the lead sponsor of 968 studies on the registry; 191 are open to participants now.
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Exclusion Criteria:
Defect:
Medical history:
Other:
Biological: Tissue engineered cartilage graft
Autologous nasal chondrocytes expanded in vitro and cultured in a collagen type I//III scaffold
1-Safety for the patient
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.
Time frame: until 24 months
2- Stability of the graft
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.
Time frame: until 24 months
Subjective pain relief
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.
Time frame: until 24 months
This study is completed, as verified in Aug 2018. You cannot join it, but the record below documents what was studied.
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University Hospital, Basel, Switzerland