New neurology medication usage low due to high costs, similar effectiveness

Dec. 7, 2022
Future studies are needed to determine if cost is a barrier for new medications with greater efficacy.

While many new medications designed to treat neurologic diseases have hit the market, utilization by patients remains low due to high costs and similar effectiveness to existing drugs, a new study funded by the American Academy of Neurology finds.

A research team led by Michigan Medicine used pharmaceutical claims data from 2001 to 2019 to analyze use of new-to-market medications and existing guideline-supported medications for patients with one of 11 neurologic conditions, including multiple sclerosis, Parkinson’s disease and migraine.

Results published in Neurology, the medical journal of AAN, reveal that fewer than 20% of patients were treated with new medications approved by the FDA between 2014 and 2018, while costs of these medications were significantly higher than existing treatments. The only condition with a higher usage rate of new medications was tardive dyskinesia at 32%.

The most expensive new treatment was edaravone for ALS at an average out-of-pocket cost of $713 a month. Researchers say the out-of-pocket costs for newer medications were more unpredictable than the costs for existing drugs due to the higher general costs of the medications and differences in each patient’s insurance coverage.

U of M Health release