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Important: This site presents data from the FDA Adverse Event Reporting System (FAERS). A report does not mean the drug caused the event. Full disclaimer.

CASIMERSEN vs TOFERSEN: Which Drug Is Safer?

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CASIMERSEN vs TOFERSEN: Safety Overview

Metric CASIMERSEN TOFERSEN
Total FAERS Reports 767 366
Deaths Reported 7 60
Death Rate 0.9% 16.4%
Hospitalizations 87 97
Average Patient Age 14.0 yrs 56.9 yrs
% Female Patients 0.4% 48.3%
FDA Approval Date Feb 25, 2021 Apr 25, 2023
Manufacturer Sarepta Therapeutics, Inc. Biogen Inc.
Route N/A INTRATHECAL
Marketing Status Prescription Prescription