*In a clinical trial, treatment with SKYCLARYS (n=40) resulted in 2.41 lower modified Friedreich Ataxia Rating Scale scores (less impairment) relative to placebo (n=42) at Week 48 (-1.56 vs +0.85; P=0.0138).2

Jacob age 30
Youth mentor
Taking SKYCLARYS since 2023

Jacob is a paid
spokesperson for Biogen.

Jacob is a paid
spokesperson for Biogen.

*In a clinical trial, treatment with SKYCLARYS (n=40) resulted in 2.41 lower modified Friedreich Ataxia Rating Scale scores (less impairment) relative to placebo (n=42) at Week 48 (-1.56 vs +0.85; P=0.0138).2

More than 3000 patients have chosen SKYCLARYS worldwide†3

Efficacy

SKYCLARYS was shown to slow
the progression of FA in the
pivotal MOXIe trial.*2

See the clinical data
Safety

See the safety profile for SKYCLARYS from clinical trials.

Review the data
Access

Learn about Biogen's Support Programs & affordability options for eligible patients.

Explore access support

*In a clinical trial, treatment with SKYCLARYS (n=40) resulted in 2.41 lower modified Friedreich Ataxia Rating Scale scores (less impairment) relative to placebo (n=42) at Week 48 (-1.56 vs +0.85; P=0.0138).2

Based on commercial patients, early access patients, and clinical trial participants through July 2025.

A chance to slow FA
progression

starts with
SKYCLARYS*

*In a clinical trial, treatment with SKYCLARYS (n=40) resulted in 2.41 lower
modified Friedreich Ataxia Rating Scale scores (less impairment) relative to
placebo (n=42) at Week 48 (-1.56 vs +0.85; P=0.0138).2