Teva Pharmaceutical Industries Ltd. (NYSE:TEVA) and Active Biotech (NASDAQ OMX NORDIC:ACTI) announced today the publication of a pre-planned analysis of the Phase III ALLEGRO study demonstrating that once-daily oral laquinimod provides a beneficial impact on brain tissue damage, one of the most destructive aspects of multiple sclerosis. These data, “Placebo-controlled trial of oral laquinimod in multiple sclerosis: MRI evidence of an effect on brain tissue damage,” published online in September by the
Journal of Neurology, Neurosurgery & Psychiatry (JNNP),
along with an accompanying editorial titled, “Oral laquinimod for multiple sclerosis: beyond the anti-inflammatory effect,” can be found on the
"This Phase III sub-study was pre-planned to explore the ability of laquinimod to act on mechanisms leading to irreversible brain tissue damage," said Professor Massimo Filippi, Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University. “This study indicates that laquinimod likely exerts a favorable effect on several MRI metrics of neurodegeneration, which in turn might explain the previously observed ability of the drug to significantly slow down progression of locomotor disability in relapsing-remitting multiple sclerosis.”
The results showed that when compared with placebo, patients treated with laquinimod experienced decreased rates in brain tissue damage shown by various MRI markers. Specifically, patients receiving laquinimod showed decreased rates of white matter (WM), grey matter (GM) and thalamic atrophy; developed fewer permanent black holes (PBH); and accumulated less damage in normal appearing brain tissue (NABT), WM and GM, when compared to patients receiving placebo.
“These analyses reinforce our faith in the potential of laquinimod and we are proud to announce that we plan to initiate a clinical trial of the drug in PPMS to gather even more evidence of this novel mechanism of action,” said Dr. Michael Hayden, President of Global R&D and Chief Scientific Officer for Teva Pharmaceutical Industries Ltd. “ We also believe the potential neuroprotective benefits of laquinimod could have significant application in the treatment of other diseases like Crohn's disease, lupus nephritis, Huntington’s disease and Alzheimer’s.”