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Zenapax® - Daclizumab                                                                                                                                                                                                               

A monoclonal antibody licensed for prevention of kidney transplant rejection. It was designed to block the activity of interleukin 2, a chemical messenger in the immune system, and interfere with the growth of lymphocytes. Recent studies have show that it increases the activity of natural killer cells, another immune system cell.

Only physicians experienced in immunosuppressive therapy and management of organ transplant patients should prescribe Zenapax (daclizumab).

A retrospective analysis of 55 people with relapsing/remitting and secondary progressive MS who had received daclizumab reported that disability scores improved or stabilised in 60% and worsened in 40%.

In other studies, daclizumab showed promise in treating people who had failed to respond to beta interferon or glatiramer acetate (copaxone).

Several phase II clinical trials of daclizumab in relapsing/remitting MS are underway or planned. [1]

 

MS treatment in final clinical trial stage - 23 June 2010

Abbott Laboratories and its Massachusetts biotech partner have launched a final-stage clinical trial of their experimental treatment for multiple sclerosis.

 

The first patient - out of 1,500 needed worldwide - was enrolled last month in the US. The drug, daclizumab, is being developed for monthly injection under the patient's skin by North Chicago-based Abbott and Cambridge-based Biogen Idec. The trial is important because the drug industry is searching for new ways to change the course of the debilitating autoimmune disease, rather than merely treating the symptoms, as most products on the market do. Multiple sclerosis is a common neurological disorder in which a patient's immune system starts to attack the central nervous system. It affects an estimated 2.5 million people worldwide.

 

"Despite significant advances in MS therapy, many patients continue to experience disease activity," said Dr Ludwig Kappos, lead investigator for the Abbott and Biogen-funded study and head of MS research at University Hospital in Basel, Switzerland. "The MS community is eager for new treatment approaches."

 

Biogen already has a well-known therapy on the market called Tysabri, proven to be effective by slowing progression of the disease in most patients studied and reducing MS flare-ups. That has helped the drug become a blockbuster that will generate more than $1 billion in annual sales for the first time this year. But Tysabri also has a rare but deadly side effect. It has been linked to causing a fatal disease called progressive multifocal leukoencephalopathy, or "PML." As of June 7, Biogen said, 55 people have developed PML and 11 of them have died out of about 68,000 people on Tysabri. The US Food and Drug Administration is closely monitoring Tysabri, but has maintained the drug's benefits outweigh its risks.

 

In clinical trials so far with daclizumab, there are no known cases of PML, according to Abbott and Biogen. The drug is a monoclonal antibody that works by attaching itself to disease cells. Biogen said enrollment of MS patients in the final stage clinical trial will be completed next year. Some analysts say daclizumab could be submitted to the FDA in the next three to four years for possible approval.

 

Source - Author - Chicagobreakingbusiness.com - website page

 

                                                                                                                                                                                                                                             

 

 

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Zenapax MS reviews at daily strength

 

1. Rose JW, et al. Daclizumab phase II trial in relapsing and remitting multiple sclerosis: MRI and clinical results. Neurology 2007 69(8):785-789 -  med line abstract

 

 

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