Multicenter Trial of Stem Cell Therapy for Osteoarthritis (MILES)

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Primary osteoarthritis is a debilitating disease characterized by extensive damage to the joints and excruciating pain leading to loss of activity and depression. Despite advances in diagnosis and relatively efficient control of nociception, to date, the quest for the development of a disease modify...

Primary osteoarthritis is a debilitating disease characterized by extensive damage to the joints and excruciating pain leading to loss of activity and depression. Despite advances in diagnosis and relatively efficient control of nociception, to date, the quest for the development of a disease modifying osteoarthritis drug has proven unsuccessful. The potential of mesenchymal stem cells to inhibit inflammation while promoting healing makes them amenable for the treatment of various ailments ranging from cancer to genetic diseases. In orthopedic practice, autologous stem cell injections are performed to alleviate the pain associated with osteoarthritis. A serious gap in knowledge remains whether the currently used cellular treatments are beneficial in the long term and if one cell therapy outperforms another. The most popular form of Autologous Mesenchymal Stem Cells (MSC's) therapy has been through the use of Autologous Bone Marrow Concentrate (BMAC). The rationale is that when a sample of Bone Marrow Aspirate (BMA) is collected and the components that are not beneficial to the joint are filtered out (i.e. red blood cells, neutrophils, etc.) the remaining concentrate (MSC's, platelets, interleukins, etc) can have a "healing" effect on the environment in which it is injected. However it is still unknown as to how effective BMAC is for treating orthopedic conditions compared to other MSC procedures and the most important components of the BMAC mixture that could aid patients suffering from osteoarthritis. Adipose tissue has been found to have a large amount of mesenchymal stem cells versus that in bone marrow. These cells are currently being used in a variety of clinical research studies within the regenerative medicine field. Through a tissue process which includes washing and centrifuging, the cellular components can be extracted as a cell pellet, which is also known as Stromal Vascular Fraction (SVF). Adipose derived SVF is obtained via liposuction, or the removal of adipose tissue via a suction method. Although the use of various stem cell preparations for knee osteoarthritis has become increasingly prevalent, well-designed studies with conclusive proof of comparative effectiveness and identification of the optimal cell source and "dose" have not been performed. This study is the first randomized study comparing three types of cellular treatments to corticosteroids. The main objective of the study is to identify a superior source of stem cells for the treatment of osteoarthritis and validate its advantages over corticosteroid injections as the traditional gold standard treatment.

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