NEW YORK (TheStreet) -- Good news for Catalyst Pharmaceutical Partnersa Monday is bad news for patients with a rare neuromuscular disease and the U.S. health care system. Catalyst reported positive results from a phase III study of Firdapseaas a treatment foraLambert-Eaton Myasthenic Syndrome (LEMS), a progressive, muscle-weakening disease. Treatment with Firdapse improved LEMS symptoms compared to a placebo.aWith these data, Catalyst intends to seek Food and Drug Administration approval for Firdapse early next year.