By Vidhi Choudhary Biogen will stop developing a drug to treat a severe neurodegenerative disease, as it did not show sufficient benefit when tested in trials. Patients with amyotrophic lateral sclerosis — known more prominently as ALS or Lou Gehrig’s disease — die waiting for a miracle drug that could transform their quality of life. ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord. The condition leads to paralysis — inability to talk, eat, drink and breathe. Movies like “The Theory of Everything,” the biopic on cosmologist Stephen Hawkin…