Einstein (São Paulo) (May 2022)

Matrix-assisted autologous chondrocyte transplantation for treatment of focal chondral lesions in the knee: the Hospital Israelita Albert Einstein experience

  • Alessandro Rozim Zorzi,
  • Eliane Antonioli,
  • Camila Cohen Kaleka,
  • Moisés Cohen,
  • Juliana Aparecida Preto de Godoy,
  • Andrea Tiemi Kondo,
  • José Mauro Kutner,
  • Mario Lenza,
  • Mario Ferretti

DOI
https://doi.org/10.31744/einstein_journal/2022ao6819
Journal volume & issue
Vol. 20

Abstract

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ABSTRACT Objective Phase 1 clinical trial to determine feasibility, safety, and efficacy of a new advanced cell therapy product for treatment of knee articular cartilage injuries. Methods Three participants with knee focal chondral lesions were included, with no signs of osteoarthritis. Chondrocytes were obtained through knee arthroscopy, cultured in collagen membrane for 3 weeks at the laboratory, subjected to tests to release the cell therapy product, and implanted. All patients underwent a specific 3-month rehabilitation protocol, followed by assessments using functional and imaging scales. The main outcome was the incidence of severe adverse events. Results Three participants were included and completed the 2-year follow-up. There was one severe adverse event, venous thrombosis of distal leg veins, which was no associated with therapy, was treated and left no sequelae. The clinical and radiological scales showed improvement in the three cases. Conclusion The preliminary results, obtained with the described methodology, allow concluding that this product of advanced cell therapy is safe and feasible. ReBEC platform registration number: RBR-6fgy76

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