In­ject­ed form of Leqem­bi ap­pears ef­fec­tive at clear­ing amy­loid, but with no­table risks

New da­ta on an in­jectable form of Ei­sai’s Alzheimer’s drug, Leqem­bi, showed that it was more ef­fec­tive than an in­tra­venous ver­sion at clear­ing amy­loid but al­so came with a high­er risk of brain-re­lat­ed side ef­fects known as ARIA.

The study, which was pre­sent­ed at the Clin­i­cal Tri­als on Alzheimer’s Dis­ease con­fer­ence in Boston, looked at pa­tients who got week­ly sub­cu­ta­neous in­jec­tions of Leqem­bi as an al­ter­na­tive to every-oth­er-week in­tra­venous in­fu­sions. The da­ta come from a six-month look at the study, and Ei­sai aims to sub­mit the for­mu­la­tion for ap­proval once it has a year’s worth of re­sults by the end of March 2024, ac­cord­ing to Michael Irizarry, Ei­sai’s head of clin­i­cal neu­rol­o­gy re­search and deputy chief clin­i­cal of­fi­cer.

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