Osiris Therapeutics (NASDAQ:OSIR, company site) Stock has been on the upswing lately as its stem cell therapy Prochymal is being evaluated in Phase III trials for three different indications. Given the potential stem cell therapy holds for making paradigm shifting changes in the way a number of chronic diseases are treated, the excitement around Osiris is understandable. However there are several important factors that investors must take into account when considering the company.
One big plus in Osiris’s favor is that it has phase III trials under way for three indications at a time when many stem cell companies have yet to begin any human trials. Another positive is that its Prochymal therapy is derived from mesenchymal stem cells that are derived from adult donors. This allows the company to side-step the controversy that surrounds stem cells from embryonic sources (more about Prochymal below).
Prochymal is in phase III trials for steroid refractory graft vs host disease (GvHD), Chron’s disease and acute GvHD. Additionally it is in phase II trials for Type 1 diabetes, Acute MI, and COPD. The huge patient populations that are included in these disease states, give Osiris enormous potential. However, there are plenty of obstacles in their way.
It will be imperative for the company to partner with a company that has an experienced sales force to educate physicians on a potential “game changing” treatment. Also, given the novelty of the product, FDA approval is likely to quite stringent. Though Prochymal is in three phase III trials, future launch dates will be very difficult to pin down at this point. There have also been a number of questions about management.
Osiris’s co-founder and chairman is Swiss Venture Capitalist, Peter Friedli, Friedli owns close to one third of the outstanding shares and a publicly traded Swiss investment company, New Venturetec, of which Friedli is president, owns more than 10%.
Friedli is the former chairman and CEO of Purus, a now defunct manufacturer of air pollution control systems. Friedli wound up paying $200,000 to settle shareholder claims that the company lied about the viability of its products. This payment was part of a $9.95 million settlement paid by the company.
Additionally, Friedli was a director of Think Tools. Think Tools is a swiss company that has been the subject of a criminal investigation surrounding its IPO.
Osiris’s ability to advance Prochymal to phase III trial gives it enormous potential. It will be interesting to hear more from the company about partnerships and marketing plans as Prochymal nears launch (our requests for an interview with the company went unanswered). Although the field will be crowded with competitors (with both stem cell derived treatments and other therapies) Osiris could be a big hit with both patients and investors.
Prochymal
Prochymal is a novel drug currently undergoing Phase III clinical trials for three indications: steroid refractory acute Graft vs. Host Disease, newly diagnosed acute Graft vs. Host Disease, and Crohn’s Disese. This medication is also being looked at for the prevention of type 1 diabetes mellitus as well as repairing lung tissue in patients with COPD and heart tissue in patients who had a myocardial infarction. Prochymal contains mesenchymal stem cells that are obtained from bone marrow in healthy adult donors. Mesenchymal stem cells are multipotent cells that differentiate into various cell types including osteoblasts, myocytes, adipocytes, and beta pancreatic islets cells.
Graft vs. Host Disease, or GvHD, can occur when a patient undergoes allogenic bone marrow transplantation. The transplanted bone marrow will recognize the recipient as foreign and mounts an immune response to the hosts’ cells. Studies have shown that mesenchymal stem cells are not only derived from bone marrow but also reside in certain organs, such as lungs, for many years. The stem cells that originate and reside in certain organs have been shown to be different from those that originate in bone marrow and could potentially be specific to that particular organ. Administration of stem cells that are specific to a tissue that is being transplanted could be a therapeutic option for a recipient that is rejecting the organ.
Mesenchymal stem cells, as previously mentioned, differentiate into other cell types such as myocytes. After a myocardial infarction, the heart muscle suffers much damage. Administration of stem cells from a healthy donor could potentially differentiate and release myocytes which will aid in the rebuilding of the muscle tissue. This same concept is expanded to the treatment of other disease states such as Crohn’s disease and COPD which are associated with tissue damage.
Prochymal has been granted orphan drug status as well as Fast Track status for all three indications being studied in Phase III trials.