Biotechnology company
Appears in 4 stories · Last updated Aug 25, 2026
As of August 2026: Co-marketing Leqembi and IQLIK in the US
Since 2023 the Alzheimer's drug Leqembi came with a catch: patients needed intravenous infusions at a clinic every two weeks for 18 months. On August 24, Eisai and Biogen removed that hurdle, making a subcutaneous autoinjector version, LEQEMBI IQLIK, available from the very first dose.
Updated Aug 25
As of July 2026: Developer of diranersen, advancing to registrational trials
For decades, nearly every Alzheimer's drug that reached patients aimed at one target: a sticky protein called amyloid. On July 14, 2026, Biogen showed the first clinical evidence that hitting a different protein, tau, can also slow the disease.
Updated Jul 14
As of June 2026: Developer and commercial owner of salanersen
Some children with spinal muscular atrophy get a one-time gene therapy, then slowly weaken again. There has been no clear next step for them. On June 4, 2026, the FDA gave Biogen's salanersen a designation meant to speed up that next step.
Updated Jun 4
As of May 2026: Co-developer with rights to zorevunersen outside North America
Dravet syndrome is a severe genetic epilepsy that causes hundreds of seizures per month, cognitive decline, and a 15–20 percent mortality rate. For nearly five decades, no treatment addressed the underlying cause — including two drugs approved in the past eight years, which could only partially suppress symptoms.
Updated May 30
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