CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 172 enrolled
Drug / intervention
Omaveloxolone Capsules, 2.5 mg +9 moredrug
Likely dose
Omaveloxolone Capsules, 2.5 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02255435
NCT02255435Phase 2Completed

A Phase 2 Study of the Safety, Efficacy, and Pharmacodynamics of RTA 408 in the Treatment of Friedreich's Ataxia (MOXIe)

Biogen·interventional·Posted Oct 2, 2014·Updated Jan 23, 2026

In Brief

A Phase 2 clinical trial evaluating Omaveloxolone Capsules, 2.5 mg, Omaveloxolone Capsules, 5 mg, and 8 other interventions for Friedreich Ataxia. Completed, enrolled 172 participants across 11 sites in 5 countries.

Detailed Summary

In this study, researchers are learning more about RTA 408, also known as omaveloxolone, BIIB141, or SKYCLARYS®. The main goal of this study is to learn more about the safety of RTA 408 and how it affects physical effort, movement, coordination, and how participants feel in daily life. The main questions researchers want to answer in this study are: * How much physical effort can a participant produce during a cycling test after 12 weeks of treatment? * How do scores on the modified Friedreich's Ataxia Rating Scale (mFARS) change after 48 weeks? Researchers will use the modified Friedreich's Ataxia Rating Scale (mFARS) to measure how FA affects the nervous system. The mFARS looks at movement ability, balance, coordination, speech, and how well the arms and legs work. They will also use a cycling test to measure physical effort, along with questionnaires to learn how participants feel and function in daily life. Safety will also be tested using physical exams, vital sign checks, echocardiograms (ECHO), electrocardiograms (ECG), and blood and urine tests. The study will be done in 2 main parts, followed by an optional Extension period: * In Part 1, participants will be randomly assigned to take different doses of RTA 408 or a placebo by mouth once a day for 12 weeks. A placebo looks like the study drug but contains no real medicine. * Researchers will compare these doses to decide which one to use in Part 2. * In Part 2, a different group of participants will take either the chosen dose of RTA 408 (150 mg) or placebo once a day for 48 weeks. * Participants who complete Part 1 or Part 2 may be able to join an Extension period, where everyone receives RTA 408. * In the Extension period, participants will continue to receive RTA 408 until the drug becomes commercially available or until they leave the study * Participants in Part 1 will have up to 9 study visits and 2 phone calls. If they do not move onto the Extension period, they will stay in the study for up to 20 weeks. * Participants in Part 2 will have up to 10 study visits and 3 phone calls. If they do not move onto the Extension period, they will stay in the study for up to 61 weeks. * Participants in the Extension period will have 2 visits in the first month, followed by visits every 6 months.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustralia, Austria, Italy, United Kingdom, United States

Timeline

Phase 2CompletedFinished
201520162017201820192020202120222023202420252026
First PostedOct 2, 2014
Enrollment StartJan 31, 2015
Primary CompletionOct 31, 2019
Study CompletionDec 19, 2025
TodayJul 2, 2026
Enrollment to primary: 4.8 yearsPosted 11.8 years ago

Interventions

Omaveloxolone Capsules, 2.5 mgdrug

Omaveloxolone Capsules, 5 mgdrug

Omaveloxolone Capsules, 10 mgdrug

Placebodrug

Omaveloxolone Capsules, 20 mgdrug

Omaveloxolone Capsules, 40 mgdrug

Omaveloxolone Capsules, 80 mgdrug

Omaveloxolone Capsules, 160 mgdrug

Omaveloxolone Capsules, 300 mgdrug

Omaveloxolone Capsules, 150 mgdrug