A Strong Start For Amvuttra, But Alnylam Bides Time On Heart Results And US Price Control Plans

Company Will Await Full Readout In 2024

Alnylam has scrapped plans for an interim analysis of its all-important HELIOS-B study of its new ATTR therapy, hoping that a 2024 readout will be more compelling, while the US Inflation Reduction Act has put the brakes on development in another indication.

Alnylam building
Alnylam's HELIOS-B study is expected to read out in early 2024, allowing it to take on Pfizer's Vyndaqel and Vyndamax. • Source: Alamy

Alnylam’s new second-generation RNAi product, Amvuttra, has got off to a strong start, achieving a 30% growth in third-quarter US sales compared with the previous three months, but the company has put off a peek at data from a crucial trial in a larger potential patient population.

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