Brainstorm Stem-Cell Therapy Continues to Show Treatment Effect in ALS Patients

By: Adam Feuerstein | 01/05/15 - 10:52 AM EST

Once injected, the NurOwn stem cells bathe the damaged neurons of ALS patients with secretions of nerve growth factors. Brainstorm has a home run on its hands if NurOwn can be shown to slow or halt the progressive destruction of neurons, and if that disease-modifying effect translates into improved muscle function for ALS patients. Monday's update comes from a Phase IIa trial in which 14 ALS patientswere followed for the three months without treatment. At month four, each patient wastransplanted with their own personalized NurOwn therapy and then assessed every month for six months. Brainstorm evaluated NurOwn's impact on ALS disease progression using the ALSFRS score, a commonly used assessment of treatment response and muscle function in ALS patients. Lung function, another commonly used measure of efficacy in ALS clinical trials, was also measured.

Twelve ALS patients were evaluable for response. Of these, 11 patientsshowed aslowing of ALS disease progression at six months compared to baseline, measured either by improved ALSFRS or lung function scores, Brainstorm said. Two other patients enrolled in the study died. Administration of the NurOwn therapy was well tolerated by patients, the company said.

The final Phase IIa data announced Monday were a small improvement over interim results from the same study presented last June. Further, detailed data from the study will be presented at a medical meeting later this year. For perspective purposes, it's important to note that this phase IIa study enrolled a relatively small number of ALS patients and was conducted at a single hospital in Israel. This doesn't necessarily discredit the positive results, but conclusions about NurOwn's ultimate benefit as an ALS therapy can't be drawnuntil data from larger studies are gathered.

Brainstorm is conducting another, larger Phase II study in the U.S., enrolling 48 ALS patients who will be randomized 3:1 to receive a single NurOwn treatment in the muscle and spine, or a placebo treatment. The study is being conducted at two hospitals in Massachusetts, UMass Medical Center and Massachusetts General, and the Minnesota-based Mayo Clinic. The study's primary endpoint is the safety and tolerability of NurOwn, but investigators will also assess ALS patients for efficacy using measures of ALS disease activity and muscle function. The first patient was enrolled into the Phase II study last June and Brainstorm expects results to be ready in the first half of 2016.

The company is also in the planning stages for another Phase II study in which ALS patients will be treated with multiple doses of NurOwn. Must Read: 11 Best Small-Cap Technology Stocks That Could Hit It Big in 2015

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Brainstorm Stem-Cell Therapy Continues to Show Treatment Effect in ALS Patients