Plegridy (peginterferon beta-1a, manufactured by Biogen Idec) is the newest disease-modifying therapy, or DMT, to be approved by the Food & Drug Administration for relapsing-remitting multiple sclerosis. This makes it the 11th DMT now available to people living with MS.
Injected under the skin every two weeks, Plegridy is designed to maintain the effects of interferon in the body for a longer period of time. It belongs to the same interferon class as several other DMTs available to people with MS and has a similar safety profile. However, individuals who have a history of hypersensitivity to natural or recombinant interferon beta or peginteferon should discuss other options with their healthcare provider.