to Initiate Multi-Center Clinical Trial for Bone Graft Product
Tuesday September 2, 8:00 am ET
-- IND Approval Key Milestone for Aastrom's Stem Cell Product Program for Tissue Generation --
ANN ARBOR, Mich., Sept. 2 /PRNewswire-FirstCall/ -- Aastrom Biosciences, Inc. (NasdaqSC: ASTM) today announced that the U.S. Food and Drug Administration (FDA) has approved its Investigational New Drug (IND) application for a multi-center Phase I/II clinical trial for the Company's bone generation Tissue Repair Cell (TRC) stem cell product. The study allows Aastrom's TRCs to be used at up to three centers for the treatment of tibial non-union fractures, and could lead to a viable alternative to the current, highly morbid standard of treatment for use in the multi-million dollar bone graft market. The approval of the IND represents a key milestone that supports Aastrom's focus on the use of its stem cell-based TRCs for tissue generation.
The FDA's approval was based on its review of Aastrom's TRC product and data supporting the safety and bone forming capability of these cells. Although a start date for the trials has yet to be determined, Aastrom is currently finalizing documents, and participation agreements with leading orthopedic centers. Up to three such centers will be included in the trials, and as many as 20 patients will be recruited who have either long-term (a minimum of 8 months) non-healing tibial leg fractures, or non-union fractures that are severe enough to require a bone graft to aid repair.
The bone graft trial protocol combines Aastrom's TRCs with a standard orthopedic matrix, to be provided by the Musculoskeletal Transplant Foundation (MTF). This trial is the first conducted by Aastrom in affiliation with its new strategic partner, MTF, an industry leader in providing bone graft matrices for orthopedic surgery. The Company anticipates that this trial will be conducted concurrently with other planned trials in Europe that are intended to demonstrate the safety and efficacy of TRCs for bone graft indications.
"We are in the final stages of preparation for this trial of our stem cell product for the repair of major leg fractures, which represents a significant achievement in bringing our novel, cell-based procedure to the multi-million dollar bone graft market," said R. Douglas Armstrong, Ph.D., President, Chief Executive Officer and Chairman of Aastrom. "FDA approval of our IND is an important benchmark that supports the research and development resources we have devoted to our TRC products, and allows the Company to move forward with this initial U.S. bone generation clinical trial."
TRCs are Aastrom's proprietary stem and progenitor cells, produced from small samples of a patient's own bone marrow (autologous cells). TRCs are enriched for early stage stem and progenitor cells that can form bone and other tissues, and have been safely used in over 150 patients to generate normal bone marrow, as well as immune system cells. In addition, TRCs were successfully used in a compassionate use case to generate systemic bone in a patient with the genetic bone disease, infantile hypophosphatasia.
About Bone Grafting
Bone grafting is used in over 1 million patients annually in the U.S. and Europe, including repair of major fractures such as tibial non-union fractures, and various types of vertebral fusion. A standard approach to obtain bone graft material involves chiseling out bone and marrow from a patient's hip. This invasive "autograft" process can result in substantial acute and chronic pain, discomfort, and mobility problems.
Current bone graft substitute products lack the cells needed to promote effective bone growth, and are therefore a less effective alternative. TRCs have substantially more bone forming cells compared to native bone marrow, as has been demonstrated by lab and animal models testing bone. TRCs mixed with a matrix (allograft) should provide the components to form bone, and may provide an effective alternative to autograft.
About the Aastrom/MTF Strategic Alliance
Aastrom and the Musculoskeletal Transplant Foundation (MTF) have formed a strategic alliance to jointly develop and commercialize innovative treatments for the regeneration of tissues such as bone and cartilage. Aastrom's collaboration with MTF, the leading provider (annual revenue over $200 million) of allograft matrices, or donor-derived tissue, will focus on forming a coordinated business and clinical approach for new products and treatments needed in orthopedic medicine. Under the terms of the alliance, Aastrom and MTF will coordinate and fund the development of products that are based on combinations of MTF's matrices and Aastrom's Tissue Repair Cells (TRCs). The companies will share in the development and clinical trial expense of these treatment approaches and products, and will adopt a coordinated promotion and marketing strategy for future products. In addition to the initial focus on jointly developed bone graft treatments, the companies will explore new approaches for the regeneration of joint cartilage, as well as effective combinations of TRCs with MTF's new ceramic technology.
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