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MorphoSys announces its partner Novartis' phase 2b/3 study of bimagrumab in sporadic inclusion body myositis fails to meet primary endpoint
Planegg, Germany | Monday, April 25, 2016, 18:00 Hrs  [IST]

MorphoSys AG, a German biotechnology company, announced that its partner Novartis has confirmed that a phase 2b/3 study examining bimagrumab (BYM338) in sporadic inclusion body myositis (sIBM) did not meet its primary endpoint. Data are currently being reviewed and will inform decisions on the bimagrumab development programme. Ongoing clinical trials are not being discontinued at this time.

"The outcome of the phase 2b/3 study with bimagrumab in sIBM is disappointing. Nevertheless, ongoing clinical trials, including those in sarcopenia and hip fracture are continuing as planned at this stage", said Dr. Marlies Sproll, chief scientific officer of MorphoSys AG. "Our collaboration with Novartis has produced eleven clinical programmes to date with many more to come. We are looking forward to continuing to see more successful products arising from our collaboration with Novartis."

sIBM is a rare debilitating muscle disease, characterized by progressive weakness and wasting of the muscles. Over time, patients can lose the ability to walk, experience falls and injuries, lose hand function and have swallowing difficulties. Diagnosis of sIBM is complex, and there is no single test that enables reliable diagnosis; because of this, sIBM is often misdiagnosed. The disease mostly affects people older than 50 years, and patients may become wheelchair dependent within 10-15 years of disease onset. There is currently no approved treatment for sIBM.

Bimagrumab (BYM338) is a novel human monoclonal antibody developed to treat pathological muscle loss and weakness. BYM338 was developed by the Novartis Institutes for Biomedical Research (NIBR), in collaboration with Morphosys, whose human combinatorial antibody library (HuCAL) was used to identify the antibody.

In addition to sIBM, bimagrumab is in clinical development for hip fracture recovery and sarcopenia, a disease characterized by age-related low muscle mass and functional impairment. Bimagrumab is administered by intravenous infusion.

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