sold under the brand name leqembi cost $26,500.00 a year. you have the treatment at your fingertips and suddenly you have medicare saying yes, but you can t get access to that at this point in time. reporter: alerted trial funded by the drug makers did find that leqembi can slow the progression of ultimate disease by 27%. it is the first time a drug has proven to alter the diseases course. it of this fairy dismaying experience getting a diagnosis of alzheimer s and being told of anything that will slow down or stop the disease in its tracks. reporter: columbia university dr. lawrence koenig says this is the beginning of a new treatment era but he warns