Pluristem sees positive result for stem cell therapy

Tue Sep 14, 2010 8:00am EDT

Related Topics

* Aims to bring product to market in 2013

* Seeks 50 pct of $10 bln market

* In talks with big pharma firms for licensing deal

By Tova Cohen

TEL AVIV, Sept 14 (Reuters) - Pluristem Therapeutics (PSTI.O) said early clinical trials show its placenta-derived cell therapy is safe and improves quality of life in patients with degenerative disorder peripheral artery disease (PAD).

The company is targeting 2013 to bring the product to market and is in talks with large drug firms for a licensing deal.

PAD is an obstruction of blood vessels, usually in the leg, causing pain, difficulty in walking and leading eventually to amputation.

The Phase I trials, conducted at three university hospitals in the United States and one in Berlin, show the cells are effective in treating the end stage of PAD, called critical limb ischemia, the Israel-based biotech company said on Tuesday.

Pluristem plans advanced trials in the first half of 2011.

Unlike many other companies that use embryonic stem cells, Pluristem harvests cells from the placenta after a woman gives birth, so there is no ethical issue on using embryos.

"We have proved we can use the placenta as a source for a product that doesn't require a match between the donor and patient," Chief Executive Zami Aberman told Reuters.

While an estimated 20 million people in the United States suffer from PAD, Pluristem is targeting the 2.5 million who are in the end stage. Insurance companies pay about $10 billion a year to treat those patients.

"We assume ... we can get 30 to 50 percent of this $10 billion market," Aberman said.

Pluristem estimates it can slash reimbursement costs of insurance companies by about 50 percent, as the cost of treating PAD using its therapy, called PLX-PAD, is significantly cheaper than current methods, which run to around $40,000 per year.

Pluristem is in talks with large pharmaceutical companies in the United States, Europe and Japan to market the treatment though Aberman would not disclose names.

He said Pluristem was seeking a licensing deal similar to those signed by Pfizer Inc (PFE.N) with stem cell firm Athersys (ATHX.O) and Genzyme GENZ.O with Osiris Therapeutics (OSIR.O).

Present treatment for PAD include a bypass to improve circulation, drugs to improve bloodstream and oxygen chambers.

"These can stop progress of the disease for a while but do not change the situation," Aberman said.

Pluristem's clinical trials showed patients experienced improvement in bloodstream, pain and quality of life for six months following a 20-minute session of injections.

"The most important thing is to reduce the amputation rate," Aberman said. "What we envision is a treatment once in six months."

Pluristem plans to launch trials for other applications over the next few quarters and expects to begin bringing these applications to market within the next few years. Applications being looked at are neuropathic pain, orthopaedic injuries and several auto-immune disorders. (Editing by David Holmes)

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