The first and only FDA-approved treatment for FA in patients 16 years and older

Libby, age 27 | Interior designer | Taking SKYCLARYS since 2023 | Libby is a paid spokesperson for Biogen.

A chance to slow Friedreich ataxia (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).1

More than 3000 patients have chosen SKYCLARYS worldwide†2

The efficacy of
SKYCLARYS was proven in
a 48-week clinical trial1

SKYCLARYS was studied in the pivotal MOXIe trial, an international clinical trial that included 103 patients with FA.3

Learn about the MOXIe trial
Safety data from the
MOXIe trial

The MOXIe clinical trial established the safety profile of SKYCLARYS. Adverse events in the clinical trial were generally considered mild to moderate.3

See SKYCLARYS safety
Support and affordability options for eligible patients

Biogen REACH program can support patients accessing SKYCLARYS and may help to minimize out-of-pocket expenses.

Explore access support

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

Hear from patients with FA about their real
experiences taking SKYCLARYS