COLUMBIA, Md.--(BUSINESS WIRE)--  
    Osiris    Therapeutics Inc. (NASDAQ:OSIR    -     News) announced today it has received market authorization    from Health    Canada to market its stem cell therapy Prochymal    (remestemcel-L), for the treatment of acute    graft-vs-host disease (GvHD) in children. The historic decision    marks the worlds first regulatory approval of a manufactured    stem cell product and the first therapy approved for GvHD  a    devastating complication of bone marrow transplantation that    kills up to 80 percent of children affected, many within just    weeks of diagnosis.  
    "I am very proud of the leadership role Canada has taken in    advancing stem cell therapy and particularly gratified that    this historic decision benefits children who would otherwise    have little hope," said Andrew Daly, M.D., Clinical Associate    Professor, Department of Medicine and Oncology at the    University of Calgary, Canada and Principal Investigator in the    phase 3 clinical program for Prochymal. "As a result of Health    Canada's comprehensive review, physicians now have an    off-the-shelf stem cell therapy in their arsenal to fight GvHD.    Much like the introduction of antibiotics in the late 1920's,    with stem cells we have now officially taken the first step    into this new paradigm of medicine."  
    Prochymal was authorized under Health Canada's Notice of    Compliance with conditions (NOC/c) pathway, which provides    access to therapeutic products that address unmet medical    conditions and which have demonstrated a favorable risk/benefit    profile in clinical trials. Under the NOC/c pathway, the    sponsor must agree to carry out confirmatory clinical testing.  
    Today is not only a great day for Osiris, but for everyone    involved in the responsible development of stem cell    therapies, said C. Randal Mills, Ph.D., President and Chief    Executive Officer of Osiris. Most importantly, today is a    great day for children and their families who bravely face this    horrific disease. While today marks the first approval of a    stem cell drug, now that the door has been opened, it will    surely not be the last.  
    Health Canadas authorization was made following the    recommendation of an independent expert advisory panel,    commissioned to evaluate Prochymal's safety and efficacy. In    Canada,    Prochymal is now authorized for the management of acute GvHD in    children who fail to respond to steroids. The approval was    based on the results from clinical studies evaluating Prochymal    in patients with severe refractory acute GvHD. Prochymal    demonstrated a clinically meaningful response at 28 days post    initiation of therapy in 61-64 percent of patients treated.    Furthermore, treatment with Prochymal resulted in a    statistically significant improvement in survival when compared    to a historical control population of pediatric patients with    refractory GvHD (p=0.028). The survival benefit was most    pronounced in patients with the most severe forms of GvHD. As a    condition of approval, the clinical benefit of Prochymal will    be further evaluated in a case matched confirmatory trial and    all patients receiving Prochymal will be encouraged to    participate in a registry that will monitor the long-term    effects of the therapy.  
    Refractory GvHD is not just deadly to the patients it    afflicts, but is devastating for the family, friends, and    caregivers who watch helplessly as the disease progresses,    said Joanne Kurtzberg, MD, Head of the Pediatric Bone Marrow    Transplant Program at Duke University and Lead Investigator for    Prochymal. "I have personally seen Prochymal reverse the    debilitating effects of severe GvHD in many of my patients and    now, after nearly two decades of research, the data    demonstrating consistently high response rates, a strong safety    profile and improved survival clearly support the use of    Prochymal in the management of refractory GvHD."  
    Prochymal is currently available in several countries,    including the United States, under an Expanded Access Program    (EAP). Prochymal will be commercially available in Canada later    this year.  
    Today Osiris turns the promise of stem cell research into    reality, delivering on decades of medical and scientific    research, said Peter Friedli, Chairman and Co-founder of    Osiris. It took 20 years of hard work and perseverance and I    want to personally thank everyone involved for their dedication    to this important mission.  
    In addition to the extensive intellectual property protection    Osiris has around Prochymal, which includes 48 issued patents,    Health Canada's decision will also provide Prochymal with    regulatory exclusivity within the territory. Canada affords    eight years of exclusivity to Innovative Drugs such as    Prochymal, and an additional six-month extension is available    since it addresses a pediatric population.  
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World's First Approved Stem Cell Drug; Osiris Receives Marketing Clearance from Health Canada for Prochymal